Innovative Mounts 99351-75A K-Series Steel Engine Conversion Mount Kit 75A Bushings

The Innovative Mounts 99351-75A is a CNC-machined steel K-Series engine conversion mount kit designed for the Acura Integra DA9/DB2 chassis. Built for enthusiasts performing a K-Series engine swap with a manual transmission, this kit includes three mounts (driver, rear, and passenger side) along with two mounting brackets. The mounts also support auto-to-manual transmission conversions.

Constructed from high-quality steel with precision welds and a durable wrinkle black finish, Innovative Steel Mounts replace fluid-filled OEM mounts to reduce wheel hop and sharpen throttle response. Each kit is CAD/CAM designed and stress-analyzed for performance reliability and comes with a lifetime warranty.

This kit ships with 75A Black polyurethane bushings, which provide a firm, performance-oriented feel suited for street and track use. These no-tear bushings are tapered to minimize binding and gradually absorb engine movement and vibration.

Bushing Options Available:

• 60A Red – Street-oriented bushing offering the least vibration transfer for a comfortable everyday ride. Rated for engines up to 250HP.
• 75A Black (Included) – Recommended for street and track vehicles making above-average horsepower. Provides a stiffer feel with reduced engine flex. Rated up to 500HP.
• 85A Grey – Maximum stiffness designed for dedicated race cars or high-output builds over 500HP.

Kit Contents:

• Driver side mount
• Rear mount
• Passenger side mount
• 2 mounting brackets

Important Notes:

• Kit does not include the front mount
• For 92–93 Integra non-GSR applications, see part number 99350
• Transmission-side bracket is compatible only with manual transmissions from 2002+ Civic Si, 2002+ RSX, or Integra
• K24 installations require an additional Honda engine bracket (Honda P/N: 11910-PPA-000), sold separately
• Self-locating bracket requires welding to frame
• Professional installation by a mechanic or automotive specialist is strongly recommended