Printpartsummary
Symptoms:
  • C1 Clutch burned
  • Delayed Forward
  • Harsh Forward
Cause:

Excess wear at the C1 damper bore allows critical Drive/Line pressure loss, compromising accumulator pressure control in Forward gears.

Correction:

Recover hydraulic control and renew Forward operation and shift feel by installing Sonnax C1 damper piston kit.

60-41SN

C1 Damper Piston Kit

Part No.

19741-17K

C1 Damper Piston Kit
  • 19741-17k_combo

  • C1 Damper Piston Kit

Small_19741-17k_combo Small_19741-17k

60-41SN

C1 Damper Piston Kit

Part No. 19741-17K

  • Valve
  • Sleeve
  • Spring Long
  • Spring Short
  • O-Rings (3) 1 Extra

Complaint:

  • C1 Clutch burned
  • Delayed Forward
  • Harsh Forward

Cause:

Excess wear at the C1 damper bore allows critical Drive/Line pressure loss, compromising accumulator pressure control in Forward gears.


Correction:

Recover hydraulic control and renew Forward operation and shift feel by installing Sonnax C1 damper piston kit.

Delayed/Harsh Forward engagement and a burnt C1 clutch in Aisin AW 60-41SN transmissions can often be caused by excess wear at the C1 damper piston bore. Because the piston acts as an accumulator for Drive pressure in Forward gears, it is very active in the bore. Leakage past the piston due to bore wear causes loss of Drive/Line pressure, and allows pressure spikes to reach the C1 clutch.

Restore normal Forward operation and revive accumulator control by installing Sonnax C1 damper piston kit 19741-17K.

  • Hardcoat anodized aluminum piston combats premature wear
  • Sleeve manufactured from highly wear-resistant aluminum alloy
  • O-rings provide positive seal

Related Parts

You need this if...

Vacuum testing at the port(s) indicated fails to hold the recommended minimum in-Hg, or if wear is visually detected.

  • Test Locations

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