Sonnax 168740-12K Solenoid Damper Kit for Toyota/Lexus UA80E UA80F UB80E UB80F Transmissions

The Sonnax 168740-12K solenoid damper kit corrects system pressure issues in Toyota/Lexus UA80E, UA80F, UB80E, and UB80F transmissions. Solenoid dampers smooth out signal fluid pressure from control solenoids before the fluid reaches their respective valves and clutches, helping provide smooth transmission operation by removing pressure spikes.

Addresses Critical Transmission Problems:

When damper bores and pistons wear out, they cannot effectively dampen pressure variations and can exhaust fluid pressure, resulting in loss of shift control pressure, delayed engagement, poor shift quality, burnt clutches, and TCC apply and release concerns. This kit returns correct system pressure by providing a replacement piston with a positive sealing O-ring to address even worn bores.

Kit Contents:

• Replacement piston with O-ring
• Two O-rings (includes one extra)
• Small spring
• Large spring

Installation Benefits:

This drop-in solenoid damper kit corrects circuit pressure variations by remedying bore and damper wear without the need for modifying the valve body. Note: This kit fits one of eight damper locations in the valve body. The O-ring design provides a positive seal against pressure loss even in worn bores, eliminating the need to replace the entire solenoid body or control valve body.

This kit is needed when vacuum testing at the indicated port fails to hold the recommended minimum in-Hg, or if wear is visually detected.