Symptoms:

  • Worn accumulator bores
  • Soft shifts
  • Harsh shifts
  • Delayed engagement
  • Shudder on engagement

Cause:

Side loading of the piston wears the piston bore.

Correction:

The Sonnax accumulator piston kit improves sealing and prevents future wear.

A5GF1, A5HF1, F4A41/42/51, F5A51, R4/V4A51, R5A51, V5A51

Accumulator Piston Kit
Part No. 41954-02K

Fits any of four locations in '96-later Mitsubishi valve bodies including F4A41/42/51, R4/V4A51, R5/V5A51, F5A51 and Hyundai/Kia A5HF1 and A5GF1.

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Severe wear of the accumulator bores is very common in Mitsubishi F4A and F5A units. Sonnax accumulator piston kit 41954-02K will improve the sealing in worn bores, while a guide seal will reduce future wear by preventing the piston from contacting the bore. This kit is used with the OE springs and requires no machining.

  • Reduces wear
  • No machining required
  • Anodized aluminum piston
  • Re-uses OE springs
  • Piston
  • Guide Seal PTFE
  • D-Ring Seal Viton®

Sonnax valve body layouts provide a detailed overview of individual units making it quick and easy to determine what’s available for the specific valve body you’re working on. See all Sonnax valve body layouts.

Mitsubishi F4A, F5A Valve Body Layout

Mitsubishi F4A, F5A Valve Body Layout
  • A5GF1, A5HF1, F4A41/42/51, F5A51, R4/V4A51, R5A51, V5A51 Accumulator Piston Kit 41954-02K
  • A5GF1, A5HF1, F4A41/42/51, F5A51, R4/V4A51, R5A51, V5A51 Accumulator Piston Kit 41954-02K
  • A5GF1, A5HF1, F4A41/42/51, F5A51, R4/V4A51, R5A51, V5A51 Accumulator Piston Kit 41954-02K details