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If your 1999-2004 Jeep Grand Cherokee is showing more vibration, clunking, or driveline chatter than usual, the engine mounts are a likely culprit. Replacing worn mounts restores engine alignment, reduces noise that travels into the cabin, and helps prevent extra wear on driveline and accessory components. This guide covers the top shortlisted engine mounts for the WJ Grand Cherokee, focusing on fitment, vibration isolation, and long-term durability. Below you will find the best options for common repair and upgrade needs plus clear evaluation criteria to help you pick the right mount for your use and budget.
Looking for other parts? See all Jeep Grand Cherokee parts & accessories.
Top Picks at a Glance
A-Premium 3-Piece Engine and Transmission Mount Kit for Jeep Grand Cherokee WJ (1999–2004)
| Fitment | Jeep Grand Cherokee 1999-2004 4.0L 4WD Automatic |
|---|---|
| Package | Set of 3 (Front Left, Front Right, Transmission Mount) |
| Manufacturer Part Number | APEM993 |
This three-piece A-Premium kit replaces the front left, front right, and transmission mounts on Jeep Grand Cherokee WJ models with the 4.0L engine and automatic 4WD transmission. It is intended as a direct-fit factory-quality replacement that uses tested materials and quality control to meet factory-spec standards. Installation is typical for motor mounts: remove the old mounts, support the engine, and bolt the new mounts in place; the right-side mount can be harder to access as reported by other owners. The kit is useful for reducing engine vibration and improving driveline alignment after worn mounts start causing noise or movement. A one-year unlimited-mile guarantee is included for added confidence. Buyers should expect the feel and durability to be comparable to other aftermarket replacements rather than a brand-new factory unit, and fit and ease of installation depend on vehicle condition and access to proper tools. Some users reported a bad transmission mount in isolated cases, so inspect parts on arrival and be prepared to return or replace a defective piece if needed.
Best for: Buyers who want a balanced, complete replacement set to restore engine stability and reduce vibration on a 1999–2004 Grand Cherokee and value a ready-made kit that covers all primary mounts.
Less Ideal for: If you prioritize an OEM-sourced part or require professional-grade performance upgrades, consider dealer parts or performance mounts instead.
- Direct-fit kit tailored for 1999–2004 Jeep Grand Cherokee WJ 4.0L 4WD automatic applications
- Includes front left, front right, and transmission mounts so you replace all major engine support points at once
- Manufactured to meet factory-spec standards and passed product testing per the listing
- One-year unlimited-mileage guarantee provides extra buyer confidence
- Some customers reported a defective transmission mount in individual shipments
- Right-side mount can be more difficult to access and install compared with the left side
Verdict: This full three-piece mount kit is the practical choice for owners wanting a balanced, factory-spec replacement to stop vibration and restore engine alignment on 1999–2004 Grand Cherokees.
AISIN Engine Motor Mount Pair for Jeep Grand Cherokee 1999–2004 4.0L
| Compatibility | Jeep Grand Cherokee 1999-2004 L6 4.0L |
|---|---|
| Quantity | 2 (front left and right) |
| Mount Material | Rubber and steel |
| Manufacturer Part Number | EMTCH-20923 |
These AISIN front motor mounts replace the factory left and right mounts on 1999–2004 Jeep Grand Cherokee with the 4.0L inline-six. Built from steel and rubber with solid welded joints, the pair is intended as a direct replacement to restore engine positioning and reduce excessive movement. Installation is typical for engine mounts: support the engine, unbolt the old mounts, and swap in the AISIN pieces using the factory mounting points. The solid design gives firmer engine control compared with heavily compliant mounts, which helps reduce torque-induced movement under acceleration and can sharpen throttle response feeling. You should expect more transmitted vibration into the cabin than softer mounts, so comfort-minded drivers may notice increased noise and harshness. The package includes both left and right front mounts and lists reference part numbers for cross-checking fitment. For anyone maintaining or upgrading a Grand Cherokee with the 4.0L, these mounts offer a durable, factory-quality replacement that prioritizes stability over isolation.
Best for: Drivers who want firmer engine control and reduced drivetrain movement for a 1999–2004 Grand Cherokee 4.0L, especially those focused on performance feel and durable factory-style replacements.
Less Ideal for: If your priority is a smooth, quiet ride or you need mounts tuned specifically for off-road body isolation, consider softer or specialty mounts instead.
- Direct-fit design for 1999–2004 Jeep Grand Cherokee 4.0L to simplify installation
- Solid welded construction aimed at long-term durability and secure joint strength
- Includes both front left and front right mounts so both sides can be renewed together
- Manufactured by AISIN, a recognized OEM and aftermarket parts supplier
- Firm/solid mount type transmits more vibration and noise to the cabin compared with softer mounts
- Product listing does not include torque specs or step-by-step installation instructions
Verdict: Choose these AISIN front mounts when you want a durable, factory-quality replacement that tightens engine control and enhances throttle response on a 1999–2004 Grand Cherokee 4.0L.
maXpeedingrods Engine and Transmission Mount Kit (3‑Piece) for Jeep Grand Cherokee 4.7L 1999–2004
| Application | Jeep Grand Cherokee 4.7L Automatic 4WD 1999-2004 |
|---|---|
| Number in Pack | 3 PCS |
| Material | Aluminum, Iron, Rubber |
| Replaces Part Numbers | A5282, A3008, A5281, 52058937AC, 52058936AC, 52058996 |
This maXpeedingrods kit supplies the three mounts most commonly changed at once: front left motor mount, front right motor mount, and the transmission mount. Built from aluminum, iron, and solid rubber, the set is intended as a direct factory-replacement solution for the 4.7L Grand Cherokee 1999–2004 and lists the common part numbers it replaces. In use the mounts restore engine positioning and reduce movement under load, which helps eliminate driveline shake and improves shifting feel compared with badly worn mounts. Installation is typical for motor-mount work: expect moderate labor, a jack to support the engine, and the right sockets and extensions to access tight fasteners. Some buyers report a very firm, solid-rubber feel compared with fluid-filled factory mounts and a few noted fitment issues on nonlisted vehicles or damaged parts out of the box, so inspect components before installation. The kit is useful for a full mount refresh but may feel stiffer than original factory mounts and could transmit slightly more vibration to the cabin on some vehicles.
Best for: Buyers who want a cost-effective, no-frills replacement to restore engine alignment and eliminate driveline vibration on a 1999–2004 Grand Cherokee 4.7L and prefer replacing the full mount set in one job.
Less Ideal for: Drivers seeking a direct match to the original oil-filled feel or the softest possible NVH performance should consider higher-end factory-style or premium mounts instead.
- Complete 3-piece set replaces both engine mounts and the transmission mount for a full refresh.
- Lists multiple compatible part numbers for straightforward cross-referencing with factory parts.
- Metal and rubber construction provides strong mounting and improves engine stability under load.
- Many buyers report correct fit and straightforward installation when following standard motor-mount procedures.
- Solid rubber design can feel firmer than oil-filled factory mounts and may transmit more vibration to the cabin.
- A small number of customers reported fitment or manufacturing issues on arrival, so quality can be variable.
Verdict: If you need an affordable, full replacement to stop engine movement and restore drivability on a 1999–2004 Grand Cherokee 4.7L, this 3‑piece kit covers the job.
TOM Front Right Engine Motor Mount for 1999–2004 Jeep Grand Cherokee
| Fitment | 1999-2004 Jeep Grand Cherokee 4.0L |
|---|---|
| Position | Front Right |
| OEM Part Number | 52058928 |
| Manufacturer Part Number | 199-186 |
This front right engine motor mount replaces the factory unit on 1999–2004 Jeep Grand Cherokee with the 4.0L engine. It bolts into the same mounting points and is intended to support and isolate the engine while dampening vibration during normal driving. The part lists OEM cross reference numbers and is sold as a single mount with claims of factory-quality testing and a one year support period. For routine replacement after age-related wear or torn rubber, this unit provides a straightforward swap that restores engine stability and reduces vibration and drivetrain movement. Expect typical aftermarket fit variations on initial alignment with engine brackets, so careful trial fitting and using recommended torque specs helps. This mount is a budget-focused option that delivers core function without extras such as upgraded materials or performance features, making it best for routine maintenance rather than high-power or heavy-duty modifications.
Best for: Buyers who need an affordable, functional replacement mount to stop vibration and restore stock engine alignment without spending on premium or performance upgrades.
Less Ideal for: Drivers building higher-output engines, frequent off-roaders, or those seeking upgraded performance mounts should consider reinforced or performance-specific options instead.
- Made to fit the 1999–2004 Jeep Grand Cherokee 4.0L front right position
- Restores engine stability and reduces vibration compared with worn mounts
- Sold as a direct replacement using factory mounting points for a straightforward swap
- Aftermarket fit may require minor adjustments during installation
- Not designed for high-performance or heavy-duty engine swaps
Verdict: A practical, budget-minded replacement that restores factory engine support and reduces vibration for 1999–2004 Jeep Grand Cherokee 4.0L owners.
TAHIKO 3‑Piece Engine and Transmission Mount Set for 1999–2004 Jeep Grand Cherokee 4.7L AWD (Automatic)
| Fitment | 1999–2004 Jeep Grand Cherokee 4.7L AWD automatic |
|---|---|
| Included components | Front right engine mount, front left engine mount, rear transmission mount |
| Material Type | Metal |
| Finish | Powder Coated |
This TAHIKO mount set replaces the two front engine mounts and the rear automatic transmission mount on 1999–2004 Jeep Grand Cherokee 4.7L AWD vehicles. The parts are built from steel with rubber bushings and a powder coated finish, and the listing emphasizes laser-aligned cores, heat-forged bonding, and dual-layer vulcanized rubber aimed at reducing vibration and resisting oil degradation. Installation is intended to be DIY-friendly with pre-drilled alignment holes and included grade-8 bolts, though access around the engine can be tight and the job may take a couple hours in a shop setting. The set is marketed as factory-compatible and suitable for drivers who want a quieter idle and reduced drivetrain movement; heavier-duty drivers could appreciate the claimed higher shock absorption and stress-tested brackets. Limitations include the usual difficulty of reaching some mounting points on this platform and that performance-tuned applications may prefer purpose-built heavy duty mounts sold separately for higher horsepower or track use.
Best for: Buyers who prioritize long-term, quiet operation and want a factory-compatible replacement to restore drivetrain stability on a 1999–2004 Grand Cherokee 4.7L AWD with automatic transmission.
Less Ideal for: Owners seeking extreme performance mounts for high-horsepower or dedicated race builds should consider specialized heavy-duty options designed for those demands.
- Complete three-piece kit covers front left, front right, and rear transmission mount for one repair job
- Steel construction with powder coat finish and vulcanized rubber bushings aimed at reducing vibration and resisting oil/chemical degradation
- Includes grade-8 bolts and pre-drilled alignment holes to simplify installation and improve fitment accuracy
- Some mounting locations on the Grand Cherokee are difficult to access, making installation time-consuming even with included hardware
Verdict: Choose this three-piece TAHIKO set to reliably restore factory-like vibration control and drivetrain stability on 1999–2004 Grand Cherokee 4.7L AWD automatics.
TRQ 2-Piece Engine Mount Set for 1999–2004 Jeep Grand Cherokee 4.7L
| Fitment | 1999-2004 Jeep Grand Cherokee V8 4.7L |
|---|---|
| Quantity | 2 Piece |
| Finish Type | Powder Coated |
| Manufacturer | TRQ |
| Model | MTA32828 2 Piece Engine Mount Set |
This TRQ two-piece engine mount set replaces the front engine mounts on 1999–2004 Jeep Grand Cherokee 4.7L V8s and is built as a direct-fit replacement to restore proper engine positioning and reduce vibration. The kit arrives pre-assembled, powder-coated, and machined for consistent fit; installers report it slides into place without modification and the parts include reference numbers for cross-checking. Typical use is a DIY or shop replacement to cure transmission and engine shake, smooth idle, and improve shifting feel. Practical benefits include pre-assembly that saves install time, TRQ support resources and installation videos, and compatibility confirmed for the specified Jeep application. Reported limitations are mixed longevity across different vehicles and occasional fitment details such as missing small fasteners or tight clearance that may require swapping original nuts or sourcing a bolt. Buyers should plan for basic hand tools, possible deep sockets and jacking the engine during installation, and verify fitment for their exact year and configuration before starting the job.
Best for: Buyers who want a reasonably priced, direct-fit replacement to eliminate engine vibration on a 1999–2004 Jeep Grand Cherokee 4.7L and who prefer a solution supported by installation guides and peer reviews.
Less Ideal for: People who prioritize the absolute longest factory-grade service life or who want an upgraded performance mount with stiffer rubber or hydraulic damping should consider other specialist options.
- Direct-fit replacement for 1999–2004 Jeep Grand Cherokee 4.7L V8s so no modification required in most cases
- Pre-assembled, powder-coated, and machined components that simplify installation and resist corrosion
- Manufacturer provides DIY installation videos and clear reference numbers for checking compatibility
- Common user reports of noticeably reduced engine vibration and smoother shifting after installation
- Some users report premature failure on certain vehicles so long-term durability varies
- May not include small fasteners needed for every chassis variant requiring you to reuse original hardware or source a bolt
Verdict: If you need a direct-fit, easy-to-install replacement to cut engine vibration on a 1999–2004 Jeep Grand Cherokee 4.7L, this TRQ two-piece kit is a practical, well-documented choice.
ONNURI Engine and Transmission Mount Kit for 1999–2003 Jeep Grand Cherokee 4.0L 4WD (3‑Piece)
| Fitment | 1999-2003 Jeep Grand Cherokee 4.0L 4WD Automatic |
|---|---|
| Kit contents | 2 motor mounts and 1 transmission mount |
| Material Type | Steel, Rubber |
| Part Interchange | A3019, A3039, A5288 |
This ONNURI kit supplies two motor mounts and one transmission mount intended to replace the worn mounts on 1999–2003 Jeep Grand Cherokee 4.0L 4WD automatic models. Built from steel with rubber isolators, the parts are designed to match factory mount function and reduce engine vibration and drivetrain movement when installed. The kit lists common interchange numbers and includes the front left, front right, and rear transmission mount needed for a full replacement of the most failure-prone points. Buyers can expect a firmer, quieter ride compared with badly degraded mounts and a straightforward swap for someone comfortable with basic mechanical work or a standard shop install. Limitations are that this is a direct replacement style part rather than a performance or heavy-duty upgrade, and fitment is specific to the listed years and configuration so you should confirm matching part numbers before purchase.
Best for: Buyers who want a dependable, direct-fit replacement to restore factory ride quality and reduce vibration without upgrading to performance parts.
Less Ideal for: Those seeking reinforced or performance mounts for high-power modifications or heavy towing demands should look at upgraded specialty mounts instead.
- Sold as a 3-piece kit covering both engine mounts and the transmission mount for a complete front/rear replacement
- Steel construction with rubber isolators intended to restore factory-style vibration damping
- Lists direct interchange part numbers for easier verification against existing mounts
- Includes mounts specifically specified for 1999–2003 Jeep Grand Cherokee 4.0L 4WD automatic transmissions
- Designed as a factory-style replacement rather than a heavy-duty or performance mount option
Verdict: A complete, factory-style 3-piece mount kit that restores stock vibration control for 1999–2003 Grand Cherokee 4.0L 4WD automatics.
Choosing the Right 1999-2004 Jeep Grand Cherokee Engine Mount: Key Factors to Consider
Fitment and Mounting Alignment
Correct fitment is essential because misaligned mounts change engine position and can strain drive components. For the 1999-2004 (WJ) Grand Cherokee, look for mounts explicitly designed to match factory bolt patterns and clearances so they install without modification.
A mount that fits precisely avoids interference with heat shields, exhaust, and accessory brackets. Accurate mounting alignment reduces the risk of premature wear on related parts such as transmission mounts, CV joints, and exhaust hangers. When fitment is uncertain, plan for additional checks during installation and be prepared to confirm torque specifications for the vehicle to maintain correct engine geometry.
Vibration Isolation and NVH Control
How well a mount isolates vibration directly affects cabin comfort and perceived build quality. Different mount types, such as solid rubber, hydraulic, or hydraulic with a tuned chamber, vary in their ability to absorb vertical and rotational forces.
Consider the typical driving conditions you face. If you spend a lot of time on rough roads, prioritize mounts rated for better high-frequency absorption. For towing or heavy-load use, pick mounts that balance stiffness for torque control with enough compliance to limit harshness transmitted to the cabin.
Torque Restraint and Engine Movement
Engine mounts must resist rotational forces created by torque while still cushioning vibration. Poor torque control can cause clunking during shifts, accelerate wear on driveline components, and affect throttle response.
Evaluate mounts on their ability to limit fore-aft and rotational engine travel while maintaining some compliance. Mounts with reinforced brackets or stiffer inserts may be suitable for heavy towing or spirited driving, but note the tradeoff with increased NVH.
Material Quality and Corrosion Resistance
Mount materials determine durability. High-quality rubber compounds or hydraulic fluids maintain damping properties longer and resist hardening from heat and oil exposure. Metal components should be treated or plated to resist corrosion, especially in regions where road salt is used.
Inspect manufacturer data for elastomer durometer ratings, evidence of bonded construction, and any anti-corrosion finishes. Better materials reduce the chance of cracks, tears, or separation that lead to sudden failures and repeated replacements.
Installation Complexity and Hardware
Installation difficulty affects repair time and overall cost. Some mounts are direct bolt-in replacements while others require specific alignment tools, torqueing sequences, or temporary engine support. Availability of replacement bolts, bushings, or brackets simplifies long-term maintenance.
If you plan to DIY, choose mounts that come with required fasteners or clearly documented torque specs for the WJ Grand Cherokee. Also consider whether the mount allows for reuse of original hardware and whether special steps are needed to preload or align the engine during installation.
Tradeoffs Between Stiffness and Comfort
There is a balance between stiff mounts, which improve engine control and reduce movement, and softer mounts, which prioritize comfort by absorbing vibration. The right choice depends on use case: towing, off-road, or performance needs may justify a firmer mount; daily highway driving typically benefits from more compliant designs.
Understand this tradeoff when deciding. A firmer mount can shift vibration elsewhere in the vehicle and may make small noises more evident, while softer mounts may allow perceptible engine movement under load but keep the cabin quieter.
Common Signs That an Engine Mount Needs Replacement
Engine mounts degrade gradually, and recognizing symptoms early prevents further damage. Typical indicators include increased vibration in the cabin at idle or during acceleration, audible clunks or bangs during gear changes or sudden throttle inputs, and visible engine movement when someone revs the engine while parked.
Other clues include uneven wear on related components, such as transmission mounts or exhaust hangers, and abnormal squeaks or creaks during load changes. Regular visual inspection for torn rubber, fluid leaks in hydraulic mounts, or rusted brackets helps catch failures before they affect drivability.
- Vibration at idle or under acceleration
- Clunking sounds during shifts or throttle changes
- Visible engine lean or movement when revving
- Fluid leaks from hydraulic mounts
- Cracked or separated rubber elements
DIY Replacement Tips for WJ Owners
If you plan to do the replacement yourself on a 1999-2004 Grand Cherokee, preparation is key. Use proper engine support to relieve weight from the mount before removing fasteners, and follow the recommended torque sequence for reinstallation to avoid stressing the new mount.
Keep the original hardware handy for comparison and verify whether the replacement includes new bolts. Work on a level surface and wear eye protection and gloves. After installation, double-check clearances to exhaust, wiring, and coolant lines, and re-torque fasteners after a short break-in period.
- Support engine before unbolting to prevent damage
- Compare old mount orientation with the new part
- Use a calibrated torque wrench for final tightening
- Inspect related mounts and components while the engine is supported
When to Choose Stiffer Versus Softer Mounts
Decide based on driving habits. For towing, hauling, or heavy off-road use, stiffer mounts help control engine motion and protect driveline components. They reduce movement under high torque but can increase transmitted vibration and noise.
If the vehicle is primarily a daily driver used for commuting and highway trips, choose mounts that emphasize NVH control to keep cabin comfort high. Consider a compromise option if you mix light towing with daily driving.
- Stiffer mounts: better torque control, more NVH transmitted
- Softer mounts: improved cabin comfort, more engine movement
- Hybrid designs: aim to balance control and isolation
Installation Considerations Specific to the 1999-2004 Grand Cherokee (WJ)
The WJ chassis has specific mounting point geometry and engine bay clearances that affect replacement choices. Confirm that replacement mounts are labeled for 1999-2004 Grand Cherokee fitment and match factory bracket orientation to avoid interference with crossmembers, heat shields, or intake plumbing.
Some replacement mounts require the engine to be shifted slightly during installation to align holes. Follow guidance for supported lifting points and recommended torque values. If a mount uses a different hardware length or thread pitch, do not force bolts; obtain correct replacements to ensure safe fastening.
- Verify part is specified for 1999-2004 (WJ) fitment
- Check clearance near exhaust and heat shields
- Confirm bolt lengths and thread pitch before final torque
Maintenance Practices to Extend Mount Life
Regular inspection and preventative maintenance extend mount life. Keep the engine bay clean from oil and fluid leaks that can degrade rubber elements. Address oil leaks and coolant leaks promptly to prevent chemical attack on elastomers.
Avoid consistently carrying excessive front-end loads that strain the mounts, and periodically inspect undercarriage components for corrosion. When replacing one mount, inspect other mounts and related bushings as they often wear in tandem and can influence overall performance.
- Inspect mounts during oil changes or service intervals
- Fix engine oil or coolant leaks quickly
- Replace other related mounts if wear is visible
Still looking for the perfect fit?
Select your Jeep Grand Cherokee configuration to see the most relevant Engine Mounts recommendations
How We Chose the Best 1999-2004 Jeep Grand Cherokee Engine Mount
We evaluated mounts based on real-world fitment and functional criteria that matter to WJ Grand Cherokee owners. Primary factors included dimensional accuracy and mounting point alignment to ensure straightforward installation and correct engine position. Vibration isolation and NVH control were assessed through manufacturer specifications and common user reports to gauge how well a mount reduces cabin vibration and engine noise. Material and construction durability were considered, looking at rubber compound quality or hydraulic designs and corrosion-resistant metal components for longevity in varied climates. Load capacity and torque restraint were reviewed to ensure mounts handle engine torque and prevent excessive movement under acceleration and deceleration. Finally, ease of installation and the availability of replacement hardware or bushings affected selection because many owners perform repairs themselves. We excluded mounts that lacked clear WJ-specific fitment data, vague material specs, or poor user feedback on durability. Products that required extensive fabrication or altered engine geometry were not considered. The final shortlist prioritizes parts that match factory mounting points and offer measurable improvements in vibration control or longevity for the 1999-2004 Jeep Grand Cherokee.
Our full evaluation process is outlined in our review methodology.
FAQ
What are the most common symptoms of a failing engine mount on a WJ Grand Cherokee?
Common symptoms include increased vibration at idle and under acceleration, clunking noises during shifts or throttle bursts, and visible engine movement when revving. You may also notice fluid leaks if the mount is hydraulic.
Can I replace a Grand Cherokee engine mount myself?
Many owners can perform the replacement with basic tools and an engine support. The task requires proper engine support, a torque wrench, and patience. If you encounter seized bolts or unclear alignment, professional help is advisable.
How long do engine mounts typically last on a 1999-2004 Grand Cherokee?
Lifespan varies widely with driving conditions but often ranges from several years to over a decade. Exposure to oil, heat, heavy towing, or frequent off-road use shortens life, while regular inspections can catch issues early.
Will a stiffer mount reduce engine movement but increase vibration?
Yes. Stiffer mounts better control engine torque and reduce movement under load, but they transmit more vibration into the cabin. Choosing stiffness depends on whether you prioritize engine control or ride comfort.
What should I check after installing a new mount on my Grand Cherokee?
After installation, verify bolt torque, inspect clearances around exhaust and hoses, and recheck fastener torque after a short break-in drive. Also look for unusual noises or vibrations that could indicate misalignment.
Final Verdict
Prioritize correct fitment and a balance between vibration isolation and torque control when selecting an engine mount for the 1999-2004 Jeep Grand Cherokee. Inspect mounting hardware and related bushings while replacing a mount to prevent repeat service. Consider your driving demands—towing or off-road use favors stiffer mounts, while daily street driving benefits from mounts designed for NVH reduction. With the right choice and proper installation, you will restore smoother operation and reduce stress on surrounding components.
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