Motor Mounts

Motor Mounts: hold the engine still so the drivetrain can do its job

A motor mount bolts the engine to the chassis and absorbs the twist that engine makes every time you get on the throttle. Soft factory mounts use a lot of rubber to keep the cabin quiet, but that same rubber lets the engine rock under load, which shows up as sloppy shifts, wheel hop and lost power to the ground. Firmer motor mounts cut that movement so the engine stays planted, gear changes feel tighter and power gets transferred instead of wasted flexing the mount. That's why people fit them, and it's the first upgrade a lot of drivers make once they start pushing an engine harder.

What ThreePiece stocks

This category runs 122 products across 14 brands, priced from $31 to $595 at current in-stock levels, so plan on that spread rather than a fixed price. The deepest ranges are Prothane (29), BMR Suspension (27), Innovative Mounts (19) and Energy Suspension (13), with Torque Solution, Perrin Performance, COBB, Cusco, Whiteline, UMI Performance and others filling out the list. Concrete examples: the Prothane Mustang Bullet mounts in red or the same part in black, the Cusco motor and trans mount set for the Impreza, the Innovative K-Series steel mounts for the Acura TSX, the Torque Solution Porsche mount kit, and at the top the Innovative Lotus Evora steel mounts.

Coverage

86 of these products carry fitment data spanning model years 1955 to 2024. Top vehicles include the Chevrolet Camaro, Honda Civic, Chevrolet Corvette, Mitsubishi Eclipse, Honda Prelude, Eagle Talon, Mazda Miata, Pontiac G8, Nissan 240SX, Jeep Comanche, Ford Mustang, Subaru Impreza and Acura Integra. Makes range from Chevrolet, Honda, Ford and Subaru to Audi, Porsche, Volkswagen and Harley-Davidson.

How to choose

The real trade-off is bushing stiffness. Softer bushings keep more of the factory ride comfort and pass less vibration into the cabin; firmer ones lock the engine down for the most direct feel but transmit more noise and buzz, especially at idle. Innovative lists durometer ratings like the 75A on the Evora set and 85A on the TSX set - lower numbers are softer, higher numbers are firmer. If the car is a daily driver, lean softer; if it's a track or hard-launch build, go firmer. Decide whether you want engine-only mounts or a combined engine-and-transmission set like the Cusco kit, since replacing all the mounts at once stops the drivetrain fighting itself.

What else you need

Mounts are part of a larger engine job. Browse the full Engine Components section, and while you're under the car look at Gasket Kits, Head Gaskets and Bearings if you're doing deeper work. For supporting hardware and cooling on a swap, check Fittings and Radiators.

Fitment and ordering

Confirm the exact year, make and model before you buy - mounts are engine-and-chassis specific. For help call fitment support at 813-535-5801 or use contact us. Every order ships with free shipping, and Affirm and Katapult financing is available.

Motor Mounts: hold the engine still so the drivetrain can do its job

A motor mount bolts the engine to the chassis and absorbs the twist that engine makes every time you get on the throttle. Soft factory mounts use a lot of rubber to keep the cabin quiet, but that same rubber lets the engine rock under load, which shows up as sloppy shifts, wheel hop and lost power to the ground. Firmer motor mounts cut that movement so the engine stays planted, gear changes feel tighter and power gets transferred instead of wasted flexing the mount. That's why people fit them, and it's the first upgrade a lot of drivers make once they start pushing an engine harder.

What ThreePiece stocks

This category runs 122 products across 14 brands, priced from $31 to $595 at current in-stock levels, so plan on that spread rather than a fixed price. The deepest ranges are Prothane (29), BMR Suspension (27), Innovative Mounts (19) and Energy Suspension (13), with Torque Solution, Perrin Performance, COBB, Cusco, Whiteline, UMI Performance and others filling out the list. Concrete examples: the Prothane Mustang Bullet mounts in red or the same part in black, the Cusco motor and trans mount set for the Impreza, the Innovative K-Series steel mounts for the Acura TSX, the Torque Solution Porsche mount kit, and at the top the Innovative Lotus Evora steel mounts.

Coverage

86 of these products carry fitment data spanning model years 1955 to 2024. Top vehicles include the Chevrolet Camaro, Honda Civic, Chevrolet Corvette, Mitsubishi Eclipse, Honda Prelude, Eagle Talon, Mazda Miata, Pontiac G8, Nissan 240SX, Jeep Comanche, Ford Mustang, Subaru Impreza and Acura Integra. Makes range from Chevrolet, Honda, Ford and Subaru to Audi, Porsche, Volkswagen and Harley-Davidson.

How to choose

The real trade-off is bushing stiffness. Softer bushings keep more of the factory ride comfort and pass less vibration into the cabin; firmer ones lock the engine down for the most direct feel but transmit more noise and buzz, especially at idle. Innovative lists durometer ratings like the 75A on the Evora set and 85A on the TSX set - lower numbers are softer, higher numbers are firmer. If the car is a daily driver, lean softer; if it's a track or hard-launch build, go firmer. Decide whether you want engine-only mounts or a combined engine-and-transmission set like the Cusco kit, since replacing all the mounts at once stops the drivetrain fighting itself.

What else you need

Mounts are part of a larger engine job. Browse the full Engine Components section, and while you're under the car look at Gasket Kits, Head Gaskets and Bearings if you're doing deeper work. For supporting hardware and cooling on a swap, check Fittings and Radiators.

Fitment and ordering

Confirm the exact year, make and model before you buy - mounts are engine-and-chassis specific. For help call fitment support at 813-535-5801 or use contact us. Every order ships with free shipping, and Affirm and Katapult financing is available.