A failing engine mount turns a smooth highway cruise into a vibration festival and lets the powertrain shift under load, chewing up fan shrouds and exhaust pipes in the process. Whether you own a GMT900 Silverado, an OBS square body project, or a late-model Traverse, the right mount restores driveline stability and eliminates that jarring clunk during acceleration.
I’m Amir — the founder and writer behind Four Wheel Ask. My expertise comes from dissecting technical specifications, analyzing build quality across dozens of aftermarket and OEM-style suppliers, and aggregating hundreds of verified owner reports to separate durable parts from short-lived replacements.
After careful analysis of hundreds of owner reports and spec sheets, this guide delivers the best chevy engine mounts for daily drivers and project trucks.
How To Choose The Best Chevy Engine Mounts
Selecting the right engine mount for your Chevy vehicle goes beyond simply matching a part number. The mount must absorb vibration across the operating temperature range, resist oil and coolant contamination, and maintain its structural integrity under torque loads. Understanding the following factors will help you avoid premature failure and unnecessary labor.
Mount Type and Vehicle Compatibility
Chevy trucks and SUVs span multiple chassis generations. The square body C/K platform (1973-1998) uses a completely different mount geometry than the GMT900 platform (2007-2014), which itself differs from the newer crossover architecture under the Traverse and Acadia. Always verify the production year, drivetrain configuration, and engine family before purchasing. LS swap applications require slotted brackets that allow fore-aft adjustment to center the engine in the bay. A mount designed for a 5.3L Vortec will not fit a 6.0L LS swap without the correct adapter bracket.
Material Construction and Durability
The rubber compound is the primary vibration isolator, but the metal core determines how long the mount holds its shape. Cold-rolled steel brackets resist bending under high torque, while aluminum housing reduces weight but may not tolerate repeated thermal cycling as well. Pay close attention to the rubber-to-metal bond quality — cheap mounts often delaminate after a few thousand miles. Heat shields are another critical detail, particularly on GMT900 trucks where the driver-side mount sits near the exhaust manifold. A mount with a poorly attached or missing heat shield will cook the rubber prematurely.
Complete Kit vs. Individual Mounts
Some suppliers sell engine mounts individually, while others bundle the pair or include the transmission mount. Replacing only one side creates an imbalance that shifts engine position under load and accelerates wear on the new mount. For most repairs, a two-piece engine mount set is the minimum, and a three-piece set that includes the transmission mount is the preferred approach for high-mileage vehicles where all mounts have aged equally.
Quick Comparison
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| Model | Category | Best For | Key Spec | Amazon |
|---|---|---|---|---|
| Mardarth 3-Piece Kit | Engine + Trans Mount | 07-13 Silverado/Sierra 4WD | 3-piece set, includes trans mount | Amazon |
| Mardarth 2-Piece Set | OEM-Style Pair | 07-14 Tahoe/Suburban | Heat shields included, rubber-lined | Amazon |
| Mardarth 4-Piece Kit | Full Mount Set | 09-19 Traverse/Enclave 3.6L | 4 mounts including torque strut | Amazon |
| iKer Engine Mount Kit | Budget Pair | 07-14 Sierra/Yukon V8 | Iron construction, 2-piece | Amazon |
| Goopool LS Swap Mounts | Adjustable Brackets | 73-98 Square Body LS Swap | Slotted design, alloy steel | Amazon |
In-Depth Reviews
1. Mardarth 3-Piece Engine Mount and Trans Mount Kit
The Mardarth 3-piece kit bundles left and right engine mounts with the automatic transmission mount, providing a complete replacement solution for 2007-2013 Silverado, Sierra 1500, Tahoe, and Yukon XL models equipped with 5.3L, 6.0L, or 6.2L V8 engines and 4WD automatic transmissions. Each mount meets or exceeds OEM specifications, and the transmission mount addresses the rear driveline angle that often goes ignored during a standard two-mount replacement.
Owner feedback consistently reports perfect bolt hole alignment and heat shield placement, which simplifies an otherwise labor-intensive job. The rubber compound feels dense without being overly stiff, allowing it to absorb highway vibrations without transmitting excessive harshness into the cabin. Several reviewers noted that the driver-side access remains tight on 4WD models due to the front differential housing, but the mount itself fits correctly once the old unit is removed.
For anyone tackling a full mount refresh on a GMT900 truck, this kit eliminates the hassle of sourcing the transmission mount separately. The 30-day warranty provides basic coverage, and buyers should budget for professional installation if they lack experience working around the front differential on 4WD chassis.
What works
- Complete three-piece set covers engine and transmission mounts
- OEM-level fitment with accurate bolt hole alignment
- Includes proper heat shield attachment points
What doesn’t
- Driver-side installation is difficult on 4WD trucks
- Limited warranty period compared to premium brands
2. Mardarth Engine Motor Mount Set 15854941
This two-piece pair replaces engine mounts on 2007-2014 Cadillac Escalade, Chevrolet Avalanche, Silverado 1500, Suburban 1500, Tahoe, GMC Sierra 1500, Yukon, and Yukon XL 1500. The mounts feature anti-freeze rubber lining designed to reduce engine vibration while maintaining dimensional stability across temperature extremes. Each unit comes with a heat shield that integrates into the mount body to protect the rubber from exhaust-side radiant heat.
Real-world reviews highlight the accurate bolt hole placement and the near-identical weight and profile compared to factory GM parts. Several owners noted that the heat shield alignment was spot-on, but the driver-side installation remained challenging due to tight clearance near the steering linkage and front differential on 4WD variants. One reviewer recommended test-fitting before final torquing and confirmed that minor grinding on the truck-side mount pockets can ease installation on older frames.
This set does not include a transmission mount, so buyers with higher-mileage trucks should consider ordering the matching trans mount separately. The rubber-to-metal bond appears consistent across multiple production batches based on owner feedback, and the price point positions this pair as a strong alternative to dealer-only parts without sacrificing build quality.
What works
- Accurate OEM-style fitment with proper heat shield alignment
- Dense rubber compound reduces vibration effectively
- Competitive cost compared to dealer replacement parts
What doesn’t
- Transmission mount sold separately
- Driver side install remains tight on 4WD chassis
3. Mardarth 4-Piece Engine Motor Mount Set for 2009-2019 Traverse Enclave Acadia
Designed specifically for the GM Lambda platform, this complete four-piece set includes the front motor mount, rear motor mount, rear torque strut mount, and transmission mount for 2009-2019 Chevrolet Traverse, Buick Enclave, GMC Acadia, and Saturn Outlook models equipped with the 3.6L V6 and automatic transmission. The powder-coated finish and aluminum construction provide corrosion resistance that matters in snow-belt vehicles.
Owner reports indicate that the quality matches OEM standards, with one reviewer noting that the installation cured a persistent shimmer and shake in their 2016 Enclave. The set includes replacement part numbers A5549HY, A5548HY, A5444, and A5458HY, covering all four critical mounting points that degrade over time on high-mileage Lambda crossovers. The rubber compound has sufficient compliance to isolate engine harmonics without allowing excessive movement under throttle.
Buyers should verify that their specific model year and drivetrain configuration fall within the compatibility window, as early production 2009 models may have slight differences in the rear torque strut bracket. The 30-day warranty is standard for this price tier, and professional installation is recommended given the tight access to the rear mount location near the firewall.
What works
- Complete four-mount solution for Lambda platform vehicles
- Powder-coated finish resists corrosion
- Eliminates cabin vibration when all mounts are replaced together
What doesn’t
- Limited to 3.6L automatic transmission models only
- Rear mount access requires significant labor time
4. iKer Engine Motor Mount Kit 15854941
The iKer two-piece engine motor mount kit replaces both left and right mounts on 2007-2014 GMC Sierra 1500, Yukon, Yukon XL 1500, Chevrolet Avalanche, Silverado 1500, Suburban 1500, Tahoe, and Cadillac Escalade models with V8 engines. The mounts use iron construction with rubber isolation material, providing a substantial weight that matches the density of factory GM components. Each mount bolts directly into the existing frame pockets without modification.
Owner feedback indicates that these mounts fit well on 2014 Tahoe and similar platforms, with one reviewer calling them heavy-duty and noting that installation was relatively straightforward. Another owner specifically kept their factory heat shields rather than using the included ones, citing easier access during future service. The mounts support and position the engine while eliminating part of the resonance that contributes to cabin vibration and drivetrain harshness.
The iron construction adds durability at the cost of additional weight, which is not a concern for full-size trucks and SUVs. Buyers should note that this kit does not include the transmission mount, so a separate unit is needed for a comprehensive replacement. The price point makes this a strong contender for budget-conscious owners who still want a durable OEM-style mount.
What works
- Heavy-duty iron construction matches OEM weight and feel
- Direct bolt-in fit for GMT900 V8 trucks and SUVs
- Competitive price for a two-piece set
What doesn’t
- Transmission mount not included in the kit
- Iron adds more weight than aluminum alternatives
5. Goopool LS Swap Motor Mounts for 1973-1998 Square Body OBS Chevy GMC Truck
This pair of adjustable motor mounts is engineered for LS engine swaps into 1973-1998 square body and OBS Chevrolet and GMC trucks, including C10, C20, C1500, C2500, C3500, K1500, Suburban, Blazer, Jimmy, and Sierra models with both 2WD and 4WD configurations. The slotted design allows fore-aft adjustment for proper engine placement in the engine bay, accommodating LS1, LS2, LS3, LS6, LS7, LS9, and Vortec truck engines from 1997-2014.
High-carbon cold-rolled steel construction provides the strength needed to support a modern aluminum V8 without flexing under hard acceleration. Owner reports confirm that the slotted holes offer plenty of adjustment range, with one reviewer noting that the mount held their 6.0L LQ9 securely in an 87 Blazer and bolted directly into the factory frame mounts. Another builder reported using these mounts with a 6.0L in a 97 K1500 and praised the easy positioning during the mock-up phase.
Some test-fitting may be required, and a reviewer mentioned that minor grinding on the truck-side mount pockets saved significant headache during final installation. The set works with a wide range of transmissions including 4L60E, 4L65E, TH350, TH400, TH700R4, and 4L80. These mounts are not intended for stock engine applications and should only be used for LS or Vortec swap projects.
What works
- Slotted adjustment simplifies LS swap engine positioning
- Strong alloy steel construction handles high torque loads
- Works with 2WD and 4WD chassis across multiple transmission options
What doesn’t
- Not suitable for direct-fit replacement on stock engines
- Minor grinding may be required for optimal fitment
Hardware & Specs Guide
Material Types
Engine mounts use three primary material combinations. Cold-rolled alloy steel brackets offer the highest tensile strength and are common in LS swap adapters and heavy-duty truck applications. Iron construction adds mass that helps damp vibration while matching OEM weight distribution. Aluminum mounts reduce overall weight and resist corrosion, but they require thicker sections to achieve the same strength as steel, which can create clearance issues in tight engine bays. The rubber compound within each mount determines the vibration isolation characteristics — higher durometer rubber controls engine movement better but transmits more road noise into the cabin.
Mount Styles and Fitment
Chevy trucks and SUVs use three main mount architectures: the flat two-bolt design found on square body and OBS platforms, the clamshell style with integrated heat shields used on GMT900 models, and the multi-axis mounts with separate torque struts found on Lambda crossovers. Each style has a specific bolt pattern and stack height that must match the chassis exactly. LS swap brackets use a slotted pattern that allows several inches of fore-aft adjustment, which is critical for proper driveline angle and accessory clearance in non-factory engine installations.
FAQ
How do I know if my Chevy engine mounts need replacing?
What is the difference between OEM and aftermarket engine mounts?
Can I install Chevy engine mounts myself?
Final Thoughts: The Verdict
For most buyers, the best chevy engine mounts winner is the Mardarth 3-Piece Kit because it delivers a complete engine and transmission mount solution with verified OEM-level fitment at a balanced price point. If you need a focused two-piece set for a GMT900 truck, grab the Mardarth 2-Piece Set. And for a square body LS swap, nothing beats the adjustability of the Goopool LS Swap Mounts.
Certification: BSc in Mechanical Engineering
Education: Mechanical engineer
Lives In: 539 W Commerce St, Dallas, TX 75208, USA
Md Amir is an auto mechanic student and writer with over half a decade of experience in the automotive field. He has worked with top automotive brands such as Lexus, Quantum, and also owns two automotive blogs autocarneed.com and taxiwiz.com.