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If your Mitsubishi Eclipse feels shaky at idle or shifts under acceleration, a worn engine mount is often the cause. Choosing the right engine mount matters because fit and durability affect drivability, NVH, and long-term reliability. This guide highlights the top shortlisted engine mounts for the Mitsubishi Eclipse and explains the practical tradeoffs of materials, fitment, and installation.We evaluated candidates across mounting accuracy and long-term durability, and we also considered ease of installation and resistance to common failure modes. Read on to see the top picks and what to watch for when replacing a mount.
Looking for other parts? See all Mitsubishi Eclipse parts & accessories.
Top Picks at a Glance
| Best Overall The best all-around choice for most situations | TAHIKO 4-Piece Engine and Transmission Mount Set for Mitsubishi Eclipse 3.0L (2000–2005) |  |
| Best Quality Built to a higher standard if you want something more solid | Prothane 13-1901-BL Polyurethane Transmission Mount Insert Kit for 1995–1999 Mitsubishi Eclipse |  |
| Best Value The sweet spot between price and what you get | Beck/Arnley 104-2224 Engine Mount |  |
| Best budget The cheapest option that still gets the job done reliably | OMNI5 Front Engine Motor Mount Compatible with 2004–2012 Mitsubishi Eclipse/Endeavor/Galant |  |
| Highest Rated A top-rated pick with lots of positive feedback | URO Parts Engine Mount (11811140985) – Left/Right |  |
| Most popular A crowd favorite that many people choose with confidence | ENA Engine and Transmission Mount Set of 4 for Mitsubishi Eclipse Galant Stratus Sebring 2.4L |  |
1. TAHIKO 4-Piece Engine and Transmission Mount Set for Mitsubishi Eclipse 3.0L (2000–2005)
| Compatible Vehicles | Mitsubishi Eclipse 3.0L 2000–2005 (auto trans) |
|---|---|
| Set Components | Front, Front Right, Rear engine mount, Transmission mount |
| Material Type | Rubber, Steel |
This TAHIKO 4-piece mount set replaces the front, front-right, rear engine mounts and the transmission mount for 3.0L Mitsubishi Eclipse models (2000–2005) with an automatic transmission. Each mount combines steel and rubber construction with a powder-coated finish intended to resist corrosion and provide factory-style support for engine torque and vibration control. In everyday use this kit helps reduce drivetrain shudder and engine movement that develop as original mounts age, which improves comfort and protects driveline components. Installation is typical for mount replacement and will usually require lifting the engine slightly and standard hand tools or a mechanic. The parts are presented as a complete kit so you can replace all major mounts at once rather than sourcing individual pieces. Limitations include the typical lifespan of rubber mounts under hard use and the need to verify exact fitment before purchase since compatibility is limited to the stated vehicle models and years.
Best for: Balanced owners looking for a straightforward, full replacement to restore ride comfort and drivetrain stability on a 3.0L Mitsubishi Eclipse with automatic transmission.
Less Ideal for: Drivers seeking high-performance or hardened mounts for track use should consider performance-oriented alternatives rather than this factory-style replacement set.
- Complete 4-piece kit covers front, right front, rear engine mounts and transmission mount so all major mounts are replaced together.
- Steel-and-rubber construction with powder-coated finish aims to resist corrosion and provide factory-quality support.
- Designed to reduce engine vibration and control engine torque for a smoother, quieter ride.
- Sold as a set which simplifies sourcing and ensures matched components for balanced performance.
- Rubber components will degrade over time under high-heat or high-load conditions compared with specialty performance mounts.
- Fitment is limited to specified vehicle models and years so cross-compatibility is not guaranteed.
Verdict: A complete, factory-style four-piece mount kit that restores engine stability and reduces vibration for 3.0L Mitsubishi Eclipse models with automatic transmission.
2. Prothane 13-1901-BL Polyurethane Transmission Mount Insert Kit for 1995–1999 Mitsubishi Eclipse
| Brand | Prothane |
|---|---|
| Model | Prothane 13-1901-BL |
| Manufacturer | Prothane |
This Prothane insert kit replaces the soft factory rubber pieces in the transmission mounts with premium-grade polyurethane inserts to add rigidity to the driveline. It is installed into the existing mount housings to reinforce side mounts and provide filler plates for front and rear locations, which reduces drivetrain movement, diminishes shakes and rattles, and can make shifts feel crisper. Typical installation requires removing old rubber and pressing or prying the inserts into place; some users needed cutting tools or a bench vise to remove stubborn factory material and force-fit the new parts. The polyurethane holds grease for quieter operation and resists rapid deterioration compared with rubber, but the kit does not replace tired mount assemblies where the structural metal parts are damaged. Fitment is vehicle-specific and can be tight to install, so plan on moderate mechanical skill or shop time. For a performance-oriented Eclipse owner this kit delivers firmer response and longer-lasting components with straightforward, if occasionally fiddly, installation.
Best for: Performance-oriented owners seeking a firmer, longer-lasting driveline connection who prioritize improved shift feel and reduced vibration in their Mitsubishi Eclipse.
Less Ideal for: Drivers who want a simple bolt-on replacement without any disassembly or those whose mounts have broken metal components that need full replacement rather than reinforcement.
- Uses premium polyurethane for increased durability versus factory rubber
- Fills and reinforces factory mount voids to reduce drivetrain movement and cabin vibration
- Holds grease for quieter operation and smoother shifting feel
- Precision fabrication intended for direct fit into the OE mount housings
- Requires removal of old rubber which can be difficult and may need cutting tools or a vise
- Does not replace entire damaged mount assemblies when metal components are worn
Verdict: A performance-focused polyurethane insert kit that firms up the transmission mounts on 1995–1999 Mitsubishi Eclipse for crisper shifts and reduced vibration.
3. Beck/Arnley 104-2224 Engine Mount
| Mounting Type | Engine Mount |
|---|---|
| Manufacturer | Beck/Arnley |
| Model | 104-2224 |
This Beck/Arnley engine mount is a direct-fit replacement designed to restore the engine support and vibration damping on a Mitsubishi Eclipse. It installs in the engine bay where the factory mount isolates engine movement from the chassis, so typical use is replacement during a worn mount service or when vibration and engine movement become noticeable. The part is marketed to match factory form and fit and uses hydraulic-style construction and premium materials to reduce NVH and withstand underhood conditions. Practical benefits include an application-specific design to simplify fitment and additional factory-style mounting parts when required, which can cut installation time compared with generic mounts. Limitations to keep in mind are that fitment detail matters for different engine variants and model years of the Eclipse, and a few buyers reported missing vacuum line provisions or incorrect bolt locations on incompatible diesel variants, so confirm the exact Eclipse year and engine code before buying. Longevity will depend on driving conditions and installation quality.
Best for: A practical optimizer who wants a factory-quality replacement that balances cost and reliable fitment for routine repairs on a Mitsubishi Eclipse.
Less Ideal for: Do not choose this if you are restoring a rare or modified Eclipse or if you cannot verify the exact year and engine variant, since fit differences can matter.
- Designed to match factory form, fit and function for foreign vehicles
- Hydraulic-style construction and premium materials aimed at reducing vibration
- Application-specific fit simplifies installation for correct models
- Some buyers reported missing vacuum line provisions or incorrect bolt locations on nonapplicable variants
- Not clearly differentiated by specific Mitsubishi Eclipse year/engine in the listing, requiring buyer verification
Verdict: A budget-minded, factory-style replacement engine mount that works well for routine Mitsubishi Eclipse repairs when you confirm exact model and engine compatibility.
4. OMNI5 Front Engine Motor Mount Compatible with 2004–2012 Mitsubishi Eclipse/Endeavor/Galant
| Brand | OMNI5 |
|---|---|
| Manufacturer | Autopartsman Corporation |
| Model | GP9305 |
| Manufacturer Part Number | MS0852 |
This front engine motor mount is a direct-fit replacement designed for select 2004–2012 Mitsubishi Eclipse, Endeavor, and Galant models and is sold as a single unit. It installs in place of the factory mount to reduce engine movement and vibration transmitted to the chassis, which helps restore NVH and drivetrain alignment on vehicles with a worn mount. The listing notes compatibility by engine fitment and suggests confirming VIN and transmission type before purchase. The part is presented as a designed-to-replace-factory item and is commonly used during routine mount failures or when an engine is being removed for other repairs. Practical benefits include straightforward replacement without modification and availability as an inexpensive alternative to dealer parts. Limitations are that it is a basic aftermarket offering intended for standard passenger use rather than high-performance driving, and fitment should be double-checked for exact model year and engine to avoid installation issues.
Best for: Budget-conscious owners seeking a low-cost, straightforward replacement to restore normal engine mounting and reduce vibration on their Mitsubishi Eclipse-focused repair jobs.
Less Ideal for: Drivers planning performance upgrades, track use, or heavy-duty towing should choose a reinforced or performance mount instead.
- Direct-fit replacement for specified 2004–2012 Mitsubishi Eclipse, Endeavor, and Galant models
- Affordable option compared with dealer factory-quality mounts
- Sold as a single complete mount for straightforward swap during repair
- Aftermarket part aimed at budget buyers rather than reinforced or performance applications
- Compatibility depends on exact year and engine combination so verification is needed before ordering
Verdict: A cost-conscious, direct-fit front motor mount for specific Mitsubishi Eclipse-era models that restores factory-style damping but is not intended for performance use.
5. URO Parts Engine Mount (11811140985) – Left/Right
| Part Number | 11811140985 |
|---|---|
| Set Name | 2 |
| Unit Count | 1.0 Count |
| Manufacturer | URO Parts |
This URO Parts engine mount is a vehicle-specific replacement intended to sit between the engine and chassis and absorb drivetrain vibration. It is typically used when a worn or failed mount causes excess movement, noise, or rough running in a Mitsubishi Eclipse. The part is built from alloy and elastomer materials that the manufacturer says are heat and ozone resistant, and several owner reports indicate good fit and factory-like finish on installation. The mount restores engine alignment to factory-spec positioning and noticeably reduces vibration when fitted correctly. Installation can be moderately challenging depending on access and may require lifting the engine slightly to swap the mount, so expect some labor or a shop visit. There is no information about reinforced or performance-oriented versions, so this is a direct replacement rather than an upgraded performance mount. For reliability-focused buyers the product offers a cost-effective way to return a smooth, quiet ride when the original mount is failing.
Best for: Reliability-driven owners who prioritize restoring factory-smooth operation and quiet from a failing engine mount on a Mitsubishi Eclipse.
Less Ideal for: Drivers seeking a performance upgrade or a reinforced mount for track use should look for specialty performance mounts instead.
- Vehicle-specific fit that aligns engine to factory specifications
- Materials specified as heat and ozone resistant for longer service life
- Multiple owner reports of correct fit and reduced vibration after installation
- Installation can be labor intensive and may require engine support or a shop
- Not marketed as a performance or reinforced mount for aggressive driving
Verdict: A dependable, vehicle-specific replacement that restores engine alignment and reduces vibration for Mitsubishi Eclipse owners looking for a reliable factory-style fix.
6. ENA Engine and Transmission Mount Set of 4 for Mitsubishi Eclipse Galant Stratus Sebring 2.4L
| Set Name | Set of 4 |
|---|---|
| Mounting Type | Corner Mount |
| Manufacturer | ENA |
| Mount Material | Aluminum |
This ENA set supplies the four mounts you need to replace worn engine and transmission mounts on 2.4L Mitsubishi Eclipse models with an automatic transmission. The kit includes front, front-right, rear engine mounts and a transmission mount intended as direct replacements to reduce vibration and engine movement. In practice the mounts are typical aftermarket quality with aluminum components and rubber isolators that noticeably cut idle shake and driveline vibration once installed. Installation can be straightforward for a competent DIYer but one or more mounts on these Mitsubishis require more time and limited access, so expect several hours and basic tools; some customers reported needing a stud remover or minor adjustments to align bolt holes. Fit and comfort improvements are common, though a few buyers reported one mount not aligning or premature failure in isolated cases. If you want a budget-friendly replacement that restores quietness and drivability on a Mitsubishi Eclipse 2.4L, this set performs well, but installation effort and occasional fitment tweaks are realistic considerations.
Best for: Convenience-driven owners who want a ready-made, cost-effective replacement kit to quickly restore quietness and reduce vibration on a Mitsubishi Eclipse 2.4L without hunting for individual parts.
Less Ideal for: Those seeking a guaranteed factory-spec lifetime solution or sellers wanting a no-hassle professional installer option should consider higher-end or dealer parts instead.
- Kit includes the four mounts typically needed for a full replacement on 2.4L Mitsubishi models
- Aluminum and rubber construction reduces engine vibration and improves idle smoothness
- Reported to fit and function like factory replacements in many installations
- Lower-cost alternative to dealer parts while restoring drivability
- Some users reported alignment issues with bolt holes requiring adjustments during installation
- A few isolated reports of premature failure suggest variable long-term durability
- Installation can be time-consuming and may require special tools for some mounts
Verdict: A practical, budget-friendly four-piece mount kit that restores quieter operation on Mitsubishi Eclipse 2.4L models but may require patience and minor fitment work during installation.
Choosing the Right Mitsubishi Eclipse Engine Mount: Key Factors to Consider
Fitment and Mounting Accuracy
Correct fitment ensures the mount lines up with the factory bolt pattern and positional tolerances for the Mitsubishi Eclipse. A precise fit reduces installation time and avoids stress on adjacent components. Poor alignment can cause premature wear on both the mount and the connected brackets, and may introduce unusual vibration or drivetrain strain.
When a mount matches OEM mounting points, it minimizes the risk of interference with exhaust, steering, or cooling components. Consider whether the design requires shims or adjustments and whether the manufacturer provides clear fitment notes. Accurate fitment also affects load distribution and the torque values you will need during installation.
Material and Construction
Mount materials determine how well the component resists oil, heat, and long-term fatigue. Common constructions include rubber-bonded metal and hydraulic or filled designs that dampen vibration more effectively. For the Mitsubishi Eclipse, look for compounds rated for underhood temperatures and exposure to road contaminants.
Stiffer materials may reduce engine movement but transmit more vibration into the cabin; softer compounds isolate vibration better but can wear faster under high loads. Consider the expected driving conditions and engine torque when choosing between different material approaches.
Vibration Isolation and NVH Performance
One of the main functions of an engine mount is to control noise, vibration, and harshness. Effective isolation keeps engine vibrations from transmitting into the chassis, improving perceived refinement at idle and under load. Evaluate how a mount handles both low-frequency engine shake and higher-frequency resonance.
Designs that incorporate damping features or hydraulic chambers typically do a better job at smoothing out transient shocks and reducing harshness during acceleration. Balance NVH performance against durability needs based on how you use the vehicle.
Durability and Resistance to Degradation
Durability is about how the mount stands up to cyclical loads, ozone, oil exposure, and thermal cycling. For a vehicle like the Mitsubishi Eclipse, select mounts with proven resistance to cracking and material breakdown. Durability affects not only service life but also long-term alignment and drivetrain stress.
Look for mounts that specify resistance to common failure causes and that use bonded or mechanically fastened interfaces designed to resist separation over time. Consider expected mileage and exposure when assessing longevity claims.
Installation Practicality and Serviceability
Ease of installation affects both labor time and the likelihood that the job is done correctly. Factors include bolt access, the need to support the engine during replacement, and whether special tools or torque specifications are required. Some designs simplify the process with guided bushings or integrated brackets.
Also consider whether replacement is straightforward for a DIYer with basic tools or whether professional service is commonly recommended. Clear installation instructions and compatibility notes reduce the risk of improper torqueing or misalignment.
Load Capacity and Engine Movement Control
The mount must handle the engine's static weight and dynamic loads from torque, braking, and cornering. Proper load capacity prevents excessive engine movement that can stress hoses, wiring, and linkages. Consider how the mount controls fore-aft and lateral motion as well as vertical displacement.
Some mounts are tuned to allow a small controlled amount of movement to absorb shocks, while others are firmer to limit motion for higher-performance setups. Match the mount's dynamic behavior to your driving style and the engine's torque characteristics.
How We Chose the Best Mitsubishi Eclipse Engine Mount
For this roundup we focused on components specifically intended for the Mitsubishi Eclipse and evaluated them across multiple vehicle-relevant dimensions. Key criteria included fitment accuracy to factory mounting points, material durability under heat and oil exposure, and isolation performance to limit vibration transfer into the cabin. We also considered design features that affect installation, such as bolt access and required torque specifications, plus how the mount handles typical loads for this vehicle.We excluded universal or generic mounts that require significant modification, and we did not consider parts without clear vehicle compatibility. We prioritized mounts that balance longevity and NVH control while remaining serviceable for common replacement procedures. Reliability history under normal driving conditions and documented compatibility with Mitsubishi Eclipse mounting geometry were essential filters.
Our full evaluation process is outlined in our review methodology.
FAQ
What are common symptoms of a failing engine mount?
Common signs include increased vibration at idle, a clunking noise during acceleration or gear changes, and visible engine movement when revving. You may also notice driveline vibration under load or unusual stress on hoses and wiring. Symptoms often develop gradually but may become obvious during certain maneuvers.
Can I replace a Mitsubishi Eclipse engine mount myself?
Many owners can perform a mount replacement with basic hand tools and an engine support or jack. The job usually involves supporting the engine, unbolting the old mount, and installing the new unit to the correct torque. If access is tight or special tools are required, professional service is advisable.
How long do engine mounts typically last?
Lifespan varies with driving conditions, environment, and mount construction. Under normal use, mounts often last several years and tens of thousands of miles, but exposure to oil, heat, and aggressive driving can shorten life. Inspect mounts periodically and replace when signs of cracking or excessive movement appear.
Will a firmer mount reduce vibration?
A firmer mount can limit engine movement and improve responsiveness, but it may transmit more vibration into the cabin. The right balance depends on whether you prioritize refinement or more direct engine control. Choose based on driving style and acceptable NVH tradeoffs.
What should I know about torque specs when installing a mount?
Proper torque ensures bolts remain secure without overstressing threads or deforming the mount. Use the vehicle-specific torque values and tighten in the recommended sequence when provided. If you are unsure, consult a repair manual or a qualified technician to avoid under- or over-torquing fasteners.
Do aftermarket mounts differ from OEM options?
Aftermarket mounts can vary in materials and design compared with OEM parts, which may lead to differences in fitment, NVH, and durability. Some aftermarket units are engineered to match OEM behavior closely, while others prioritize specific traits like performance or extended durability. Check compatibility and documented characteristics before choosing.
Conclusion
When selecting a Mitsubishi Eclipse engine mount, prioritize fitment accuracy, material durability, and how the mount balances vibration isolation with engine movement control. Consider installation practicality and the mount's load-handling characteristics relative to your driving habits.There are tradeoffs between firmer designs that limit motion and softer mounts that reduce NVH. Use the evaluation factors above to choose a mount that matches your priorities for refinement, longevity, and serviceability.
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