Engineered to improve drivetrain stability, reduce excessive engine movement, and provide increased durability over aging factory rubber and hydraulic engine mounts, this performance-oriented replacement kit is an excellent upgrade for daily-driven vehicles, modified street cars, and dedicated track applications.

The fifth-generation Honda Prelude is a popular performance platform thanks to its responsive handling, H-Series VTEC engine options, and excellent aftermarket potential. However, as the original engine mounts age, their rubber components and hydraulic damping systems can deteriorate, allowing excessive drivetrain movement during acceleration, deceleration, and shifting.

Excessive engine movement can contribute to wheel hop, inconsistent drivetrain response, unwanted vibration from worn mounts, and additional stress on surrounding components. These issues may become more noticeable in vehicles equipped with performance engine modifications, upgraded clutches, or increased horsepower and torque.

Innovative Mounts addresses these concerns with heavy-duty steel mounting assemblies and specially engineered polyurethane bushings. Unlike factory hydraulic engine mounts, which rely on fluid-filled damping chambers to absorb vibration, Innovative Mounts uses performance-oriented polyurethane to provide increased resistance to drivetrain movement.

The Innovative Mounts 20150 includes three replacement engine and transmission mounts, one mounting bracket, and the necessary installation hardware. The kit replaces the primary driver-side, passenger-side, and rear mounting assemblies, providing a coordinated solution for improving drivetrain stability.

Innovative Mounts' proprietary no-tear polyurethane bushing design helps control excessive engine movement while maintaining vibration isolation appropriate to the selected bushing hardness. This design can help improve drivetrain response and reduce unwanted mount deflection during aggressive acceleration and shifting.

Each mounting component is CAD/CAM designed and stress analyzed to provide accurate fitment, strength, and durability. The kit is designed as a direct replacement for compatible factory mounting components, with no cutting, notching, or trimming of the factory hood required.

Unlike many performance mount kits that are limited to manual transmission applications, the Innovative Mounts 20150 is designed to accommodate both manual and automatic transmission configurations in supported 1997–2001 Honda Prelude applications.

Available in multiple polyurethane bushing hardness options, this kit allows enthusiasts to select the appropriate balance between street-driving comfort and competition-oriented drivetrain rigidity.

Whether you're restoring your Prelude's engine mounting system, upgrading a naturally aspirated H22A4 build, or improving drivetrain stability in a modified H-Series performance vehicle, the Innovative Mounts 20150 provides the strength, durability, and engine control needed for demanding applications.

Features

• Complete Three-Mount Replacement Kit: Includes driver-side, passenger-side, and rear engine mounting assemblies.

• Additional Mounting Bracket Included: Supplied with the required driver-side mounting bracket.

• 1997–2001 Honda Prelude Compatibility: Designed for fifth-generation Prelude BB chassis applications.

• H-Series Engine Compatibility: Supports compatible Honda H-Series engine configurations.

• F-Series Engine Compatibility: Designed for supported Honda F-Series engine configurations.

• Manual and Automatic Transmission Compatibility: Engineered for compatible factory manual and automatic transmission applications.

• Heavy-Duty Steel Construction: Durable steel mounting assemblies provide increased strength and drivetrain support.

• Direct Replacement Design: Replaces compatible factory engine and transmission mounting components.

• Installation Hardware Included: Supplied with the necessary manufacturer-provided mounting hardware.

• No Hood Modifications Required: Designed to install without cutting, trimming, or notching the factory hood.

• Reduced Engine Movement: Helps minimize excessive drivetrain rocking during acceleration, deceleration, and shifting.

• Improved Drivetrain Response: Firmer polyurethane bushings reduce unwanted mount deflection under load.

• Improved Shifting Consistency: Reduced engine movement can help maintain more consistent drivetrain positioning during gear changes.

• Reduced Wheel Hop: Helps control engine movement that can contribute to wheel hop during aggressive acceleration.

• Innovative No-Tear Polyurethane Bushings: Engineered for durability and controlled vibration isolation.

• Multiple Bushing Hardness Options: Available in 75A, 85A, and 95A configurations.

• CAD/CAM Designed: Developed using computer-aided design for accurate fitment.

• Stress Analyzed: Engineered for demanding street and performance driving conditions.

• Performance-Oriented Construction: Suitable for modified street vehicles, autocross, track days, and competition applications.

• Lifetime Manufacturer Warranty: Backed by Innovative Mounts' lifetime warranty, subject to manufacturer terms.

Popular Performance Applications

1997–2001 Honda Prelude Base

An excellent upgrade for fifth-generation Prelude owners looking to replace worn factory engine mounts and improve drivetrain stability.

1997–2001 Honda Prelude Type SH

A performance-oriented mounting option for supported Type SH configurations. Confirm compatibility with the vehicle's ATTS drivetrain before ordering.

H22A4 VTEC Performance Builds

Helps reduce unwanted drivetrain movement in naturally aspirated H22A4 applications equipped with performance intake systems, camshafts, headers, and exhaust upgrades.

H-Series Engine Performance Applications

Provides firmer engine support for compatible H-Series builds where increased horsepower and torque place additional demands on the mounting system.

F-Series Engine Applications

Suitable for supported F-Series engine configurations installed in the fifth-generation Prelude chassis.

Turbocharged H-Series Builds

Helps control excessive engine movement in compatible turbocharged H-Series applications producing increased torque.

Street Performance Builds

The 75A polyurethane bushing option provides increased drivetrain rigidity while retaining some vibration isolation for performance-oriented street vehicles.

Autocross and Track Applications

The 85A bushing option provides increased resistance to engine movement during aggressive acceleration, braking, and cornering.

Drag Racing Applications

The 95A bushing option offers maximum resistance to drivetrain movement for dedicated high-horsepower competition vehicles.

Factory Engine Mount Replacement

A performance-oriented alternative for replacing worn, cracked, or leaking original rubber and hydraulic engine mounts.

Additional Information

• Manufacturer: Innovative Mounts
• Part Number: 20150
• Product Type: Steel Replacement Engine Mount Kit
• Mount Construction: Steel
• Bushing Material: Polyurethane
• Number of Mounts: 3
• Number of Additional Brackets: 1
• Mounting Positions: Driver-Side Engine / Passenger-Side Transmission / Rear Engine
• Primary Vehicle Application: 1997–2001 Honda Prelude
• Chassis Compatibility: BB
• Engine Compatibility: Honda H-Series / F-Series
• Transmission Compatibility: Manual and Automatic
• Installation Type: Direct Replacement
• Hood Modification Required: No
• Manufacturer-Listed Product Weight: Approximately 5 lbs
• Manufacturer Warranty: Lifetime Warranty, Subject to Manufacturer Terms

Individual Mount Components:

• 20110: Driver-Side Engine Mount

• 20110-SB: Driver-Side Mounting Bracket

• 20120: Passenger-Side Transmission Mount

• 29631: Rear Engine Mount

Honda OEM Replacement References:

• 50806-S30-000 / 50805-S30-000: Driver-Side Mounting Components

• 50820-S30-J02: Passenger-Side Mount

• 50810-S30-000 / 50810-S30-980: Rear Engine Mount

OEM references are manufacturer-listed cross-references. Verify the original mounting arrangement before ordering.

Available Polyurethane Bushing Hardness Options:

• 75A – Black: Street and performance configuration offering increased drivetrain rigidity. Manufacturer-recommended for approximately 250–400 HP.

• 85A – Gray: Track-oriented configuration designed to further reduce drivetrain movement. Manufacturer-recommended for approximately 400–500 HP.

• 95A – Red: Race-oriented configuration providing maximum resistance to drivetrain movement. Manufacturer-recommended for applications exceeding 500 HP.

Bushing Selection Note: Horsepower ranges are general manufacturer recommendations rather than guaranteed capacity limits. Actual bushing selection should consider engine torque, vehicle use, transmission type, and acceptable vibration levels.

Additional Note: Innovative Mounts recommends 75A or higher polyurethane bushings for heavier H-Series engines. Higher-durometer bushings generally increase vibration transmitted into the chassis.

Common Reasons for Replacement

• Worn Factory Engine Mounts: Aging rubber mounting components can crack, deteriorate, or separate, allowing excessive drivetrain movement.

• Leaking Hydraulic Engine Mounts: Factory hydraulic mounts may lose their damping fluid, reducing their ability to control engine movement.

• Excessive Engine Rocking: Unwanted engine movement during acceleration and deceleration can negatively affect drivetrain response.

• Engine Movement During Shifting: Firmer polyurethane bushings help maintain more consistent engine and transmission positioning.

• Wheel Hop During Acceleration: Reduced drivetrain movement can help minimize conditions that contribute to wheel hop.

• High-Horsepower H-Series Builds: Increased engine torque places additional demands on factory mounting components.

• Improved Drivetrain Response: Reduced mount deflection provides a more direct connection between engine output and vehicle movement.

• Improved Shifting Consistency: Reduced engine movement can help maintain more consistent shifting feel under load.

• Coordinated Mount Replacement: Replacing all three primary mounting locations together helps eliminate unwanted movement caused by deteriorated components.

• Street and Track Performance: Improve drivetrain stability during demanding driving conditions.

• Long-Term Drivetrain Maintenance: Replace aging original engine mounts with durable polyurethane alternatives.

Installation Notes

1. Verify Vehicle Compatibility: Confirm that the vehicle is a supported 1997–2001 Honda Prelude BB chassis.

2. Confirm Engine Configuration: Innovative Mounts 20150 is designed for compatible H-Series and F-Series engine applications.

3. Verify Transmission Type: Confirm that the vehicle uses a supported manual or automatic transmission configuration.

4. Check ATTS Compatibility: For Prelude Type SH applications, verify compatibility with the factory Active Torque Transfer System and associated mounting components.

5. Support the Engine and Transmission: Properly support the drivetrain before removing the original mounting components.

6. Remove the Factory Engine Mounts: Follow the appropriate Honda service procedures when removing the original driver-side, passenger-side, and rear mounting assemblies.

7. Inspect Factory Mounting Locations: Check the chassis mounting points, engine brackets, transmission brackets, and surrounding components for damage or excessive wear.

8. Install the Driver-Side Engine Mount: Position the Innovative Mounts 20110 assembly according to the manufacturer's instructions.

9. Install the Driver-Side Mounting Bracket: Install the included Innovative Mounts 20110-SB bracket in the designated location.

10. Install the Passenger-Side Transmission Mount: Position the Innovative Mounts 20120 assembly according to the manufacturer's instructions.

11. Install the Rear Engine Mount: Position the Innovative Mounts 29631 assembly in the designated rear mounting location.

12. Use the Supplied Hardware: Install the manufacturer-provided mounting hardware according to the supplied instructions.

13. Align the Drivetrain: Ensure the engine and transmission are properly positioned before final tightening to prevent unnecessary bushing preload.

14. Torque Mounting Hardware: Tighten all fasteners according to Innovative Mounts' installation instructions and applicable Honda service specifications.

15. Verify Component Clearance: Inspect clearance around the engine, transmission, exhaust system, intake components, axles, and surrounding chassis structure.

16. Select the Appropriate Bushing Hardness: Choose the polyurethane durometer that best matches the vehicle's horsepower level, intended use, and acceptable vibration.

17. Expect Increased Engine Vibration: Performance polyurethane mounts generally transmit more vibration into the chassis than factory rubber or hydraulic mounts. Higher-durometer bushings typically increase vibration further.

18. Inspect After Installation: Recheck mounting hardware, drivetrain alignment, and surrounding component clearances after the initial driving period.

19. Professional Installation Recommended: Installation by an experienced Honda technician or performance automotive specialist is strongly recommended.

20. Confirm Fitment Before Bolting Down: Innovative Mounts states that mounts showing installation bolt impressions cannot be returned or exchanged. Verify all mounting requirements before installation.

What's Included

• (1) Driver-Side Engine Mount – Innovative Mounts 20110

• (1) Driver-Side Mounting Bracket – Innovative Mounts 20110-SB

• (1) Passenger-Side Transmission Mount – Innovative Mounts 20120

• (1) Rear Engine Mount – Innovative Mounts 29631

• Polyurethane Bushings in the Selected Durometer

• Manufacturer-Supplied Installation Hardware

Important: This product is a three-mount, one-bracket replacement engine mount kit designed for compatible 1997–2001 Honda Prelude H-Series and F-Series applications.

A separate front torque mount is not included in this kit.

Verify the complete engine and transmission mounting arrangement before installation, particularly on vehicles equipped with ATTS or non-original engine configurations.

Upgrade your fifth-generation Honda Prelude with the Innovative Mounts Steel Replacement Engine Mount Kit (20150), engineered for 1997–2001 BB chassis applications equipped with compatible H-Series or F-Series engines and manual or automatic transmissions.

Featuring heavy-duty steel construction, Innovative Mounts' no-tear polyurethane bushings, three replacement engine mounts, and a driver-side mounting bracket, this kit provides improved drivetrain stability, reduced engine movement, and more consistent driving response.

Whether you're replacing worn factory hydraulic mounts, upgrading a naturally aspirated H22A4-powered Prelude, or building a modified H-Series performance vehicle, Innovative Mounts delivers the strength, durability, and drivetrain control enthusiasts demand.