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Choosing the right engine mount for your Mazda CX-9 matters for both daily comfort and long-term drivetrain health. A poor fit or low-quality mount can increase vibration, accelerate wear on surrounding components, and affect overall driving feel. This guide covers seven shortlisted engine mounts that fit the Mazda CX-9 and explains the practical reasons each type made our list. We evaluated mounts for fitment accuracy, material durability, and vibration isolation to help you narrow options based on how you use your vehicle. Read on for the factors that should guide your choice and the mounts that met our selection criteria.
Looking for other parts? See all Mazda CX-9 parts & accessories.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | Marketplace Auto Parts Engine Mount Kit for 2010–2012 Mazda CX-9 (3.7L V6) |  |
| Most Popular A crowd favorite that many people choose with confidence | Mardarth Set of 3 Engine and Transmission Mounts for 2010-2012 Mazda CX-9 3.7L Auto |  |
| Best Quality Built to a higher standard if you want something more solid | A-Premium 3‑Piece Engine and Transmission Mount Kit for Mazda CX-9 (2007–2012) |  |
| Best Budget The cheapest option that still gets the job done reliably | Advance Ignition Front Right Engine Mount for Mazda CX-7 (TC-4440) |  |
| Most Sold A high-volume bestseller chosen again and again | 4M Auto Parts 3‑Piece Engine & Transmission Mount Kit for Mazda CX-9 |  |
| Best Value for Money The sweet spot between price and what you get | Axiovate Engine and Transmission Mount Set for Mazda CX-7 (2007–2012) — Set of 3 |  |
| Best Overall The best all-around choice for most situations | A-Premium Engine and Torque Strut Mount Set for Mazda CX-7 (2007–2012) |  |
1. Marketplace Auto Parts Engine Mount Kit for 2010–2012 Mazda CX-9 (3.7L V6)
| Compatible Vehicles | 2010–2012 Mazda CX-9 3.7L V6 |
|---|---|
| Set Contents | Front mount, front-right mount, rear torque strut |
| Material Type | Alloy Steel, Aluminum |
This three-piece engine mount kit replaces the front, front-right and rear torque strut mounts on 2010–2012 Mazda CX-9 models with the 3.7L V6. It is sold as a matched set so you can swap all primary mounts at once, which helps restore engine alignment and reduces vibration after age-related wear. The parts are listed as alloy steel and aluminum construction, suggesting a durable, rust-resistant build suitable for everyday driving and towing loads typical of a family SUV. Installation is the usual under-car work that requires basic tools and lift access or ramps; replacing all three mounts together is practical to avoid repeating labor. Limitations include that this is an aftermarket marketplace kit so fit and finish may vary compared with factory-quality replacements, and you should verify fit for your exact trim before purchase. For a reliability-focused owner wanting a straightforward full-mount refresh, this kit covers the common failure points on the CX-9 V6 without the hassle of sourcing individual pieces.
Best for: Buyers prioritizing long-term reliability and a complete mount refresh for their Mazda CX-9 V6 who prefer replacing all primary mounts in one service. This suits owners who value restoring smoothness and preventing repeat labor over sourcing individual parts piecemeal.
Less Ideal for: If you want an exact factory-spec replacement with branded OEM provenance or need mounts for a different engine or model year, consider a factory-quality alternative or verified OEM parts.
- Sold as a matched three-piece set to replace all main engine mounts at once
- Materials listed as alloy steel and aluminum for corrosion resistance and strength
- Direct-fit compatibility specified for 2010–2012 Mazda CX-9 3.7L V6 trims to simplify selection
- Aftermarket marketplace part so finish and tolerances may not exactly match factory-quality components
- Requires typical under-vehicle access and mechanical skill or shop labor to install
Verdict A practical, full three-piece mount kit that restores engine stability on 2010–2012 Mazda CX-9 V6s, best for owners focused on reliability rather than strict OEM matching.
2. Mardarth Set of 3 Engine and Transmission Mounts for 2010-2012 Mazda CX-9 3.7L Auto
| Compatibility | 2010-2012 Mazda CX-9 3.7L AUTO |
|---|---|
| Included components | Engine Motor & Transmission Mount (3 count) |
| Manufacturer | Mardarth |
| Replace part numbers | A4419, A4425, 4449, EM7004, EM9537, EM9507 |
This Mardarth kit provides the three engine and transmission mounts commonly replaced on the Mazda CX-9 3.7L (2010–2012) and is sold as a matched set to simplify repairs. Each mount is intended to replace the factory pieces referenced by part numbers like A4419, A4425 and EM7004, so the kit covers front right engine, rear left transmission and torque strut positions used during a typical mount refresh. Buyers report straightforward installs when measurements and fit are correct, and the manufacturer highlights higher-grade raw materials and testing aimed at meeting factory-spec performance. Practical benefits include replacing worn mounts in a single job to restore smoother shifting and reduce vibration, and the matched set avoids part-mismatch headaches. Limitations to note are potential fitment variation on some vehicles and the recommendation for professional installation if you lack tools or experience, since alignment and torque matter for drivability and durability.
Best for: Convenience-driven buyers who want a single, vehicle-specific kit to replace all common mounts at once and minimize trips to parts suppliers or multiple orders.
Less Ideal for: If you prefer dealer-sourced factory replacement parts or need mounts for a different model year or engine, this aftermarket kit is not the right choice.
- Sold as a three-piece matched kit to replace multiple worn mounts in one service visit
- Listed compatibility explicitly for 2010–2012 Mazda CX-9 3.7L automatic, reducing part-search time
- Manufacturer states parts underwent quality and safety performance testing and uses higher-grade raw materials
- Multiple customer reports of improved vibration and shifting after installation
- Some buyers reported fitment issues where one or more mounts did not fit their vehicle exactly
- Installation requires mechanical knowledge and proper tools to ensure correct alignment and torque
Verdict A convenient matched three-piece aftermarket mount kit for 2010–2012 Mazda CX-9 owners who want a single replacement solution to restore driveline smoothness, but check fit carefully and plan for professional installation if unsure.
3. A-Premium 3‑Piece Engine and Transmission Mount Kit for Mazda CX-9 (2007–2012)
| Fitment | Mazda CX-9 2007–2012 V6 automatic (3.5L, 3.7L) |
|---|---|
| Set contents | Front right motor mount, rear engine shock mount, transmission mount |
| Material type | Alloy steel, aluminum, rubber |
| Manufacturer warranty description | One year unlimited-mileage quality guarantee |
This A-Premium kit replaces the front right motor mount, a rear engine shock mount, and the transmission mount for Mazda CX-9 V6 automatic models. It is used to restore engine alignment and reduce vibration and drivetrain movement that develop as factory mounts age. The kit combines metal brackets and rubber isolators and is marketed as meeting factory-spec dimensions after endurance testing. In practice the mounts fit the listed CX-9 applications and, when installed, reviewers report reduced engine jerk and vibration under acceleration. The set includes the specific pieces needed for a fuller mount refresh so mechanics can swap the most common failing points in one job. Limitations are that this is an aftermarket kit so finish and minor fitment adjustments may be required during installation, and one report noted a missing thread on a component that required extra machining. The product comes with a one-year unlimited-mileage guarantee that covers the part itself but not installation costs.
Best for: Performance-oriented buyers who want factory-quality handling of engine movement and reduced vibration to restore smoothness and responsiveness in a Mazda CX-9.
Less Ideal for: Drivers looking for a simple single-part replacement or a lifetime warranty on parts; those who prefer dealer-sourced factory parts may want to consider alternatives.
- Full kit covers front right motor mount, rear engine shock mount, and transmission mount so multiple worn points can be replaced at once
- Designed and tested to match factory-spec performance to reduce engine vibration and jerking
- Metal brackets with rubber isolators offer a balance of durability and NVH control
- Includes manufacturer one-year unlimited-mileage guarantee on parts
- As an aftermarket kit it may need minor fitment tweaks during installation
- One reported unit had a missing threaded hole requiring repair before installation
Verdict A comprehensive, performance-focused mount kit that restores engine stability and reduces vibration for Mazda CX-9 V6 models, though minor fitment checks may be needed during installation.
4. Advance Ignition Front Right Engine Mount for Mazda CX-7 (TC-4440)
| Position | Front Right |
|---|---|
| Compatible Vehicles | 2007–2012 Mazda CX-7 (2.3L and 2.5L US models) |
| Material Type | Rubber |
| Manufacturer Part Number | TC-4440 |
This Advance Ignition front right engine mount is a budget replacement intended to restore proper engine support and vibration isolation on compatible Mazda CX-7 models. It installs at the front right position to control engine torque and reduce excess noise and shake that develop when original mounts wear. The part is rubber-based and manufactured to meet factory-quality fitment claims, with testing described for vehicle compatibility and material durability. In practical terms the mount is a straightforward swap for technicians and DIYers comfortable with engine support work, and it can prevent secondary drivetrain stress caused by a failed mount. Limitations include its economy positioning: rubber mounts can transmit more vibration than higher-end hydraulic or premium multi-material mounts, and long-term durability may vary with driving conditions. Expect basic functional restoration at a lower cost, but not the refined isolation of premium replacements.
Best for: Budget-conscious buyers who prioritize low-cost, functional repairs and want a straightforward replacement to eliminate engine movement and noise on a Mazda CX-7.
Less Ideal for: Drivers seeking the quietest, most refined engine isolation or those who use the vehicle for high-performance or heavy towing should consider higher-end or specialized mounts instead.
- Made to fit front right position for Mazda CX-7 2007–2012 according to compatibility listing
- Rubber construction provides effective basic vibration dampening for worn mounts
- Sold as a direct replacement that simplifies installation for a quick repair
- Marketed with vehicle fitment testing and quality control focus
- Rubber-only design offers less refined vibration isolation than hydraulic or premium mounts
- Durability can be lower under heavy-duty or performance driving conditions
Verdict A cost-focused, rubber front-right replacement that restores basic engine support on the CX-7 but does not match the isolation or longevity of premium mounts.
5. 4M Auto Parts 3‑Piece Engine & Transmission Mount Kit for Mazda CX-9
| Brand | 4M Auto Parts |
|---|---|
| Manufacturer Part Number | 10103 9507 9537 |
| OEM Part Number | TD11-39-070C |
| Position | Left, Right |
This 3-piece kit from 4M Auto Parts replaces the left transmission mount, right hydraulic engine mount, and rear torque strut for Mazda CX-9 V6 models. It is intended for direct replacement of the factory mounts on 2008–2015 CX-9s with the first-design 3.7L engine and also lists fitment to earlier 3.5L CX-9s. Typical installation swaps the three mounts to restore proper engine positioning, reduce vibration transmitted to the body, and maintain drivetrain alignment. Notable features include a hydraulic right engine mount to help dampen vibration and a torque strut to control engine movement under acceleration. The practical benefits are a straightforward way to address clunks, excessive vibration, or visible engine sag without replacing individual mounts separately. Limitations are that this is an aftermarket kit so fit and finish can vary versus factory parts and it may require basic mechanical skill and standard tools for installation; additional brackets or hardware are not included in the product title if your vehicle uses them. The listing covers multiple part references for cross‑check and is best used when restoring ride comfort and drivetrain feel on the specified CX-9 models.
Best for: Risk-averse mainstream buyers who prioritize restoring factory-like NVH control and drivetrain alignment on their Mazda CX-9 rather than shopping piece-by-piece.
Less Ideal for: Buyers seeking an exact factory part from a dealer or those who prefer replacing a single mount at a time to diagnose which specific mount is failing.
- Complete three-piece kit replaces both key engine supports and the torque strut for a coordinated repair
- Includes a hydraulic right engine mount that helps reduce cabin vibration compared with solid mounts
- Designed to match factory fitment references for direct replacement on specified Mazda CX-9 models
- Aftermarket parts can show variation in fit or finish compared with factory-quality components
- Installation requires mechanical ability and basic tools; professional installation may be needed if brackets or hardware differ
Verdict A practical aftermarket three-piece mount kit that restores engine support and reduces vibration on specified Mazda CX-9 V6 models, with typical aftermarket fit and installation considerations.
6. Axiovate Engine and Transmission Mount Set for Mazda CX-7 (2007–2012) — Set of 3
| Brand | Axiovate |
|---|---|
| Model | JST-FDJZJ-137 |
| Compatible vehicle | Mazda cx-7 2007 – 2012 |
| OEM part references | A7394 A4365 A7395 A7386 A4373 |
This three-piece mount kit replaces the front motor mount, transmission mount, and torque strut for compatible Mazda CX-7 models. It is used to secure the engine and transmission to the body so vibrations and drivetrain movement are reduced during acceleration, idling, and gear changes. The mounts pair an iron-aluminum core with rubber isolation to deliver firmer positioning than degraded originals while still damping road and engine noise. Buyers report straightforward fit and clear improvement in cabin vibration after installation, which makes it a practical repair option for worn mounts. Installation requires basic mechanical access and tools and a professional is recommended if you lack experience, since correct torque and alignment matter for longevity. The kit is a budget-focused alternative to factory replacements and may not match OEM refinement or long-term durability under heavy use, so expect good value for ordinary daily driving but consider upgrading to premium options for high-mileage or performance applications.
Best for: Practical optimizers who want the most cost-effective way to restore ride comfort and drivetrain stability on a Mazda CX-7 without paying for premium aftermarket or dealer parts.
Less Ideal for: Drivers planning high-performance modifications, heavy towing, or those who prioritize maximum longevity and factory-level refinement should consider higher-spec replacement mounts.
- Direct replacement kit covering motor mount, transmission mount, and torque strut for a complete basic refresh
- Metal core with rubber bonding offers improved engine positioning and reduced vibration compared with worn mounts
- Reports of straightforward fit and noticeable reduction in cabin vibration after install
- Includes three mounts in one purchase which is more cost-effective than buying individually
- May not provide the same long-term durability or refined damping as higher-end factory-quality mounts
- Some users needed minor alignment adjustments at installation which can complicate DIY fitting
Verdict A budget-conscious, three-piece replacement kit that restores engine stability and reduces vibration for Mazda CX-7 drivers looking for solid value.
7. A-Premium Engine and Torque Strut Mount Set for Mazda CX-7 (2007–2012)
| Vehicle fitment | Mazda CX-7 2007-2012, L4, automatic transmission |
|---|---|
| Included components | Front right motor mount, transmission mount, rear torque strut mount |
| Material type | Alloy steel, aluminum, rubber |
| Mounting type | RM |
This A-Premium kit supplies three replacement mounts intended for Mazda CX-7 models with automatic transmission and L4 engines. The set includes a front right motor mount, a transmission mount, and a rear torque strut mount so you can replace the common wear points in one job. Components use alloy steel, aluminum, and rubber and are powder coated to resist corrosion; the listing says parts are tested to meet or exceed factory-spec performance and the kit ships with a one-year unlimited-mileage guarantee that covers the part itself. In practical use the set eliminates engine vibration and improves driveline stability when worn mounts are replaced, and buyers report it fits and functions correctly on many CX-7s. Fitment appears specific to automatic transmissions only, and a few users found alignment or hole-size issues that required minor drilling or fitting—so expect basic hand tools and some mechanical know-how. The kit is a cost-effective option for balanced buyers who want a near-complete mount refresh without paying dealer prices.
Best for: Balanced buyers who want a practical, full-replacement mount kit to address vibration and driveline movement without paying dealer prices.
Less Ideal for: If you prefer factory-brand parts with guaranteed precise fitment or lack tools and experience for minor on-car adjustments, consider professional installation or alternative sources.
- Complete three-piece kit covers front right motor mount, transmission mount, and rear torque strut mount for a single repair session.
- Uses alloy steel, aluminum, and rubber construction with powder-coated surfaces to resist corrosion.
- Sold with a one-year unlimited-mileage guarantee covering the replacement parts.
- Reported by multiple buyers to fit and restore normal engine vibration and driveline feel on compatible vehicles.
- Fitment is specific to automatic-transmission CX-7s and will not suit other drivetrains or models.
- Some customers reported imperfect hole alignment requiring minor drilling or adjustment during installation.
Verdict A cost-effective three-piece mount kit that restores engine stability on Mazda CX-7 automatics, but expect occasional minor fitting work for perfect alignment.
Choosing the Right Mazda CX-9 Engine Mount: Key Factors to Consider
Material and Construction
The materials used in an engine mount determine how it handles loads, heat, and exposure to fluids. Rubber, hydraulic, and polyurethane constructions each have distinct damping and longevity characteristics, so understanding those tradeoffs helps you match a mount to driving style and environmental conditions.
A mount with reinforced metal brackets and corrosion-resistant coatings will generally outlast one with thinner hardware. Pay attention to bonding quality between elastomers and metal, since delamination is a common failure mode. Material choice also affects NVH, so heavier-duty mounts may reduce movement but can transmit more vibration into the cabin.
Fitment and Compatibility
Correct fitment is essential to avoid undue stress on fasteners and drivetrain components. A mount that matches the Mazda CX-9's factory mounting points and torque specifications will align the engine properly and prevent secondary issues like misaligned driveshafts or accessory belt strain.
Check whether the mount is listed for the exact model year and engine variant of your CX-9. Compatibility also influences installation time and the need for special tools. Opting for a mount with clear fitment documentation reduces the chance of returns and additional labor.
Vibration Isolation and Ride Comfort
One of the main jobs of an engine mount is to absorb and isolate engine vibration from the vehicle structure. The mount's stiffness and damping profile determine how much engine movement is allowed and how much vibration reaches the cabin.
Softer mounts typically yield a smoother, quieter ride but may permit more engine movement under load. Stiffer mounts can improve perceived engine control and throttle response but may increase transmitted noise. Match the mount's isolation characteristics to your priorities, whether that is comfort during daily driving or firmer control for spirited use.
Durability and Environmental Resistance
Engine mounts sit in a harsh environment of heat, oil, road salt, and mechanical stress. Durability depends on material resilience to ozone, heat aging, and chemical exposure. Look for mounts with materials rated for high temperatures and with protective coatings on metal parts.
Longevity also relates to design features such as fluid-filled chambers in hydraulic mounts and reinforced bushings that resist tearing. Robust mounts reduce the frequency of replacements and lower lifetime maintenance impacts.
Installation and Serviceability
Installation complexity affects labor time and total repair hassle. Some mounts are designed for straightforward bolt-on replacement using common tools, while others require engine support or partial disassembly of adjacent components.
Consider whether the mount uses standard fasteners and if torque specs are available. Service-friendly designs that allow you to reuse factory hardware or that come with clear instructions help reduce installation errors and ensure safe reassembly.
Warranty and Support
A clear warranty provides confidence in the mount's expected lifespan and the manufacturer's quality control. Warranties often vary by length and what they cover, for example defects in materials or premature failure under normal use.
Support resources such as installation guides, technical hotlines, and readily available replacement parts can be important if you encounter issues. A strong warranty combined with accessible support can offset slightly higher upfront cost by reducing long-term risk.
FAQ
What are common symptoms of a failing engine mount on a Mazda CX-9?
Common signs include increased vibration felt through the cabin, especially at idle, and noticeable engine movement during acceleration or gear changes. You may also hear clunks or bangs when shifting from drive to reverse or when accelerating hard. These symptoms often prompt visual inspection for cracked rubber or loose fasteners.
Can I replace a Mazda CX-9 engine mount myself?
Many mounts can be replaced at home if you have basic mechanical skills, an appropriate jack or engine support, and the correct tools. Some mounts necessitate supporting the engine while removing fasteners, so following torque specs and safety procedures is important. If access is tight or special tooling is required, professional installation is usually faster and safer.
How long do engine mounts typically last?
Lifespan depends on driving conditions and mount type, but mounts often last several years or tens of thousands of miles. Frequent exposure to harsh conditions, like heavy towing or extreme temperatures, can shorten service life. Regular inspection helps catch deterioration before it causes additional damage.
Does installing a stiffer mount reduce engine vibration?
A stiffer mount can reduce engine movement and improve perceived control, but it may transmit more vibration to the cabin. The effect depends on the mount's damping design and the vehicle's isolation characteristics. Choose a balance between stiffness and damping that matches your comfort versus performance priorities.
What should I expect during an engine mount replacement service?
A typical replacement involves supporting the engine, removing the old mount, installing the new mount with correct alignment, and torquing fasteners to specification. The service may require temporary removal of adjacent components to access mounting points. After installation, it is common to recheck fastener torque and inspect for proper engine alignment.
Are aftermarket mounts suitable for the Mazda CX-9 compared with OEM options?
Aftermarket mounts can offer good value and sometimes enhanced features, but quality varies. The important aspects are fitment accuracy, material quality, and documented testing. Evaluate aftermarket options based on these criteria and consider warranty coverage and installation support when deciding between aftermarket and OEM-style mounts.
How We Chose the Best Mazda CX-9 Engine Mount
We focused on mounts that provide reliable fitment and effective vibration control specific to the Mazda CX-9 platform. Key evaluation criteria included material construction and durability, which affect how a mount resists wear and environmental exposure; fitment accuracy and OEM compatibility, since correct alignment reduces stress on adjacent components; vibration isolation performance, measured by expected reduction in noise and harshness under typical driving loads; and ease of installation, covering access to mounting points and whether common tools suffice. We also considered manufacturer quality control indicators such as warranty terms and documented testing, plus replacement-part availability in common repair channels. We excluded options that required extensive vehicle modification, mounts not explicitly designed for the Mazda CX-9, and products with insufficient documentation on materials or fit. The result is a curated list of mounts that balance durability, comfort, and straightforward installation for this specific vehicle.
Our full evaluation process is outlined in our review methodology.
Conclusion
Prioritize fitment accuracy, material durability, and the mount's vibration isolation profile when choosing an engine mount for a Mazda CX-9. Consider how you use the vehicle and whether ride comfort or firmer engine control is the primary goal, since each choice involves tradeoffs between movement control and cabin noise. Also factor in installation complexity and warranty support to minimize long-term maintenance. Focusing on these criteria will help you select a mount that balances comfort, longevity, and serviceability for your specific needs.
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