Designed for enthusiasts replacing the factory Honda Insight ECA-series hybrid drivetrain with a Honda K20 engine and compatible manual transmission, the Innovative Mounts 90751 provides the specialized mounting components needed to position and secure the K-Series drivetrain in the lightweight Insight chassis.

The first-generation Honda Insight has become an appealing platform for performance enthusiasts due to its lightweight construction, aerodynamic body design, and unique chassis characteristics. Installing a Honda K20 engine can dramatically change the vehicle's performance potential, but the conversion requires specialized engine and transmission mounts that accommodate the differences between the original hybrid drivetrain and the replacement K-Series engine.

The Innovative Mounts 90751 addresses these mounting requirements with a purpose-built steel conversion system featuring driver-side, passenger-side, and rear mounting assemblies, along with the necessary conversion brackets.

Unlike factory rubber engine mounts, Innovative Mounts' performance polyurethane bushings are designed to reduce excessive engine movement during acceleration, deceleration, and shifting. The firmer mounting arrangement helps maintain consistent drivetrain positioning while providing improved responsiveness under load.

Featuring CAD/CAM-engineered components, stress-analyzed construction, and Innovative Mounts' no-tear polyurethane bushing design, the 90751 is an excellent foundation for naturally aspirated K20 builds, turbocharged K-Series applications, drag racing projects, and dedicated motorsport vehicles.

Important: Part number 90751 is designed specifically for Honda Insight ZE1 chassis originally equipped with a manual transmission and being converted to a K20 engine with a compatible manual transmission. It is not compatible with K24 engine conversions or automatic-to-manual Insight conversions.

Features

• K20 Engine Swap Design: Engineered specifically for installing a Honda K20 engine into the first-generation Honda Insight.

• 2000–2006 Honda Insight Compatibility: Designed for the ZE1 chassis.

• Factory Manual Chassis Requirement: Intended for Insight models originally equipped with a manual transmission.

• K-Series Manual Transmission Compatibility: Designed for compatible K20-style manual transmission configurations.

• Complete Conversion Mounting System: Includes the primary engine and transmission mounting components and conversion brackets.

• Three Primary Mounting Positions: Provides driver-side, passenger-side, and rear drivetrain mounting support.

• Conversion-Specific Brackets: Includes specialized brackets for positioning the K20 drivetrain in the Insight chassis.

• Durable Steel Construction: Designed for demanding street and performance applications.

• Performance Polyurethane Bushings: Help reduce excessive drivetrain movement compared with conventional rubber mounts.

• No-Tear Bushing Design: Engineered to control unwanted engine movement while retaining some vibration isolation.

• CAD/CAM Engineered: Designed for accurate fitment and consistent mounting geometry.

• Stress-Analyzed Components: Developed to withstand demanding drivetrain loads.

• Improved Drivetrain Stability: Helps control excessive engine movement during acceleration and shifting.

• Reduced Mount Deflection: Maintains more consistent engine and transmission positioning under load.

• Improved Drivetrain Response: Firmer mounting provides a more connected driving experience.

• Potential Wheel Hop Reduction: Reduced excessive drivetrain movement may help minimize wheel hop during aggressive acceleration.

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

• Factory Hardware Reuse: Designed to reuse applicable original Honda mounting hardware.

• Street and Racing Applications: Suitable for properly configured street performance, autocross, drag racing, and motorsport builds.

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

Popular Performance Applications

Honda Insight K20 Engine Swaps

The primary application for the Innovative Mounts 90751. Provides the specialized mounting system required to install a compatible K20 engine and manual transmission in a factory-manual ZE1 chassis.

Lightweight K-Series Performance Builds

The first-generation Insight's lightweight construction makes it an interesting platform for enthusiasts building high-performance K20-powered vehicles.

Naturally Aspirated K20 Builds

Suitable for properly configured K20 engines equipped with performance intake manifolds, headers, camshafts, and other naturally aspirated upgrades.

Turbocharged K20 Applications

Provides a performance-oriented mounting solution for properly configured forced-induction K20 Insight conversions.

Drag Racing Projects

Performance polyurethane bushings help reduce excessive drivetrain movement during aggressive launches.

Autocross and Road Racing

Reduced mount deflection helps maintain more consistent engine and transmission positioning during acceleration, braking, and cornering.

Dedicated Motorsport Builds

An excellent foundation for custom Honda Insight performance projects where a secure K20 drivetrain mounting arrangement is required.

Additional Information

• Manufacturer: Innovative Mounts
• Part Number: 90751
• Product Type: K20 Engine Swap Conversion Mount Kit
• Vehicle Application: 2000–2006 Honda Insight
• Chassis Compatibility: ZE1
• Original Engine: Honda ECA-Series Hybrid
• Original Transmission Requirement: Factory Manual
• Conversion Engine Compatibility: Honda K20-Series
• Conversion Transmission: Compatible K-Series Manual
• Mount Construction: Steel
• Bushing Material: Performance Polyurethane
• Available Bushing Hardness Options: 75A / 85A / 95A
• Mounting Configuration: Three Primary Mounting Positions with Conversion Brackets
• Driver-Side Mount: Innovative Mounts 90711
• Driver-Side Conversion Bracket: Innovative Mounts 90711-SB
• Passenger-Side Mount: Innovative Mounts 90721
• Passenger-Side Conversion Bracket: Innovative Mounts 90721-SB
• Rear Engine Mount: Innovative Mounts 90731
• Engineering: CAD/CAM Designed and Stress Analyzed
• Installation Hardware: Reuses Applicable Factory Honda Hardware
• Manufacturer-Listed Weight: Approximately 18 lbs
• Warranty: Manufacturer Lifetime Warranty, Subject to Terms

Available Polyurethane Bushing Hardness Options

75A – Black – Street / Performance

The softest available bushing option for the 90751.

Recommended for street-oriented K20 Insight conversions where improved drivetrain stability is desired while retaining some vibration isolation.

Manufacturer horsepower guidance: approximately 250–400 HP.

85A – Grey – Performance / Race

Provides increased drivetrain rigidity for modified engines, aggressive driving, and competition applications.

Manufacturer horsepower guidance: approximately 400–500 HP.

95A – Red – Extreme Race

The stiffest available polyurethane option, intended for high-output engines and dedicated racing applications.

Manufacturer horsepower guidance: 500+ HP.

These horsepower ranges are general manufacturer bushing selection guidelines rather than guaranteed load ratings or minimum horsepower requirements.

Important: Increasing bushing hardness generally increases noise, vibration, and harshness transmitted into the vehicle cabin. The lightweight Insight chassis may make these changes particularly noticeable.

Innovative Mounts 90751 vs. 90752 vs. 90753

Innovative Mounts 90751 – K20 Manual Conversion Kit

Designed for Honda Insight ZE1 chassis originally equipped with a manual transmission and being converted to a K20 engine with a compatible manual transmission.

Innovative Mounts 90752 – K20 Automatic-to-Manual Conversion Kit

Designed for Honda Insight ZE1 chassis originally equipped with an automatic transmission and being converted to a K20 engine with a compatible manual transmission.

Innovative Mounts 90753 – K24 Manual Conversion Kit

Designed for supported factory-manual Honda Insight ZE1 chassis being converted to a K24 engine with a compatible manual transmission.

Important: These kits are designed for different original chassis and engine configurations and should not be considered interchangeable.

Additional Components Required for a K20 Insight Swap

The Innovative Mounts 90751 addresses the engine and transmission mounting portion of the conversion. Additional components are required to complete the swap.

Commonly required supporting components include:

• Compatible Honda K20 engine

• Compatible K-Series manual transmission

• Engine wiring harness and chassis integration wiring

• Compatible ECU or standalone engine management system

• Appropriate engine and transmission sensors

• Engine swap-compatible axles and intermediate shaft

• Compatible shifter assembly and cables

• Clutch and flywheel assembly

• Clutch hydraulic components

• Modified or upgraded cooling system

• Engine swap-compatible radiator hoses

• Appropriate fuel delivery system

• Custom or conversion-specific exhaust components

• Intake system and throttle body connections

• Appropriate engine accessories and belt routing

• Required fabrication and clearance modifications

Exact requirements depend on the selected K20 engine, transmission, and overall vehicle configuration.

Important: The 90751 does not include these additional conversion components.

Common Reasons for Replacement or Upgrade

• K20 Engine Conversion: Provides the mounting components needed to install a K20 engine in a factory-manual Honda Insight.

• Factory Engine Mount Incompatibility: Addresses the mounting differences between the original ECA hybrid drivetrain and the replacement K-Series engine.

• Improved Drivetrain Stability: Performance polyurethane helps control excessive engine movement.

• Reduced Mount Deflection: Maintains more consistent drivetrain positioning during acceleration and shifting.

• Performance Engine Upgrades: Supports properly configured naturally aspirated and forced-induction K20 builds.

• Lightweight Performance Projects: Provides a purpose-built mounting foundation for high-performance Insight conversions.

• Track and Racing Applications: Offers increased mount rigidity for demanding driving conditions.

• Complete Conversion Mounting Solution: Includes the primary mounts and conversion brackets rather than requiring individual mounting components to be sourced separately.

Installation Notes

1. Verify Vehicle Compatibility: Confirm that the vehicle is a first-generation Honda Insight ZE1 originally equipped with a manual transmission.

2. Confirm Engine Selection: Verify that the conversion uses a compatible Honda K20 engine. This kit is not designed for K24 engines.

3. Confirm Transmission Compatibility: Verify that the selected K-Series manual transmission is compatible with the mounting system.

4. Inspect the Chassis: Check the factory engine bay, mounting locations, and surrounding chassis components for damage or corrosion.

5. Prepare the Vehicle: Follow the appropriate service procedures for safely removing the original Insight hybrid drivetrain.

6. Observe Hybrid System Safety: The factory Insight contains high-voltage hybrid electrical components. Proper isolation and handling procedures must be followed before drivetrain removal.

7. Support the Drivetrain: Properly support the replacement K20 engine and manual transmission during installation.

8. Install the Driver-Side Mount: Position the Innovative Mounts 90711 according to the manufacturer's installation instructions.

9. Install the Driver-Side Conversion Bracket: Install the Innovative Mounts 90711-SB bracket at the specified mounting location.

10. Install the Passenger-Side Mount: Position the Innovative Mounts 90721 passenger-side mounting component.

11. Install the Passenger-Side Conversion Bracket: Install the Innovative Mounts 90721-SB bracket according to the manufacturer's instructions.

12. Install the Rear Engine Mount: Position the Innovative Mounts 90731 rear mounting component.

13. Verify Engine and Transmission Positioning: Ensure the drivetrain is properly aligned without excessive mount preload or binding.

14. Install the Required Hardware: Reuse applicable factory Honda hardware as specified by Innovative Mounts.

15. Torque Mounting Fasteners: Follow the manufacturer's installation instructions and applicable Honda service procedures.

16. Inspect Engine Bay Clearance: Verify clearance around the engine, transmission, chassis, steering components, cooling system, and exhaust.

17. Complete Supporting Modifications: Install the required axles, shifter components, wiring, cooling system, fuel system, and other conversion components.

18. Check for Additional Vibration: Some increase in noise, vibration, and harshness is normal when using performance polyurethane mounts.

19. Perform a Final Inspection: Verify mounting alignment, fastener security, and drivetrain clearance before operating the vehicle.

20. Recheck After Initial Use: Inspect the mounting components and hardware after the initial driving period.

Important: Innovative Mounts advises that mounts showing bolt impressions from installation cannot be returned or exchanged. Confirm fitment before installation.

Professional installation by an experienced engine swap specialist is strongly recommended.

What's Included

The Innovative Mounts 90751 K20 conversion mount kit includes:

• 1 × Innovative Mounts 90711 Driver-Side Engine/Transmission Mount

• 1 × Innovative Mounts 90711-SB Driver-Side Conversion Bracket

• 1 × Innovative Mounts 90721 Passenger-Side Engine Mount

• 1 × Innovative Mounts 90721-SB Passenger-Side Conversion Bracket

• 1 × Innovative Mounts 90731 Rear Engine Mount

• Performance polyurethane bushings in the selected hardness configuration

Additional Information

This listing is for the K20 engine swap mounting system designed for factory-manual Honda Insight ZE1 chassis.

The following components are not included unless separately specified:

• Honda K20 engine

• K-Series manual transmission

• Engine wiring harness or ECU

• Axles and intermediate shaft

• Shifter assembly and cables

• Clutch and flywheel components

• Cooling system conversion components

• Fuel system conversion components

• Exhaust components

• Additional conversion hardware not specified by the manufacturer

The kit is designed to reuse applicable factory Honda hardware. Verify the exact supplied components and fastener requirements against the manufacturer packaging and installation instructions.

Transform your first-generation Honda Insight with the Innovative Mounts 90751 Steel K20 Engine Swap Mount Kit, engineered specifically for 2000–2006 Honda Insight ZE1 chassis originally equipped with manual transmissions.

Featuring durable steel construction, conversion-specific mounting brackets, CAD/CAM engineering, stress-analyzed components, and performance polyurethane bushings, the 90751 provides the specialized mounting solution needed to install a compatible Honda K20 engine and manual transmission.

Whether you're building a lightweight naturally aspirated K20-powered Insight, developing a turbocharged performance project, or preparing a dedicated drag racing or motorsport vehicle, Innovative Mounts delivers a purpose-built drivetrain mounting solution.