Sonnax 98892-23K Oversized CPC Valve Kit for Honda Acura Transmissions

The Sonnax 98892-23K Oversized CPC Valve Kit is designed to restore proper shifting and torque converter clutch (TCC) function in Honda and Acura 4-speed (3-shaft) and 5-speed automatic transmissions. This kit addresses undesirable up/downshifts caused by worn CPC (Clutch Pressure Control) valves, where excessive bore wear results in lost control over clutch apply and release pressure.

Key Features:

• Annular grooves help center the valve in the bore to reduce future side-load wear
• Hardcoat anodized aluminum valve construction combats premature wear
• Utilizes metering notches for smoother function
• Includes valve end plug

Common Problems Solved:

• Harsh up/downshifts when clutch pressure is not properly reduced
• Flare during up/downshifts and friction element overheating from loss of clutch apply pressure
• TCC engagement and control issues

Some valve bodies may contain multiple CPC valves, and each kit will repair one location. Requires bore reconditioning before installation for proper fit and function.