Sonnax Billet Accumulator Piston Kit for A500 A518 A618 48RE A904

Sonnax Billet Accumulator Piston Kit for A500 A518 A618 48RE A904 transmissions.

OE plastic accumulator pistons in Chrysler transmissions frequently crack or break and suffer from poor sealing qualities. This causes cross-leaks between hydraulic circuits that result in inconsistent shift quality.

The Sonnax 22841-04K accumulator piston kit features an improved design and materials that eliminate cross-leaks between circuits. Rubber D-rings deliver superior sealing while the PTFE guide seals prevent piston-to-bore contact and protect the transmission case from wear. The anodized billet aluminum piston provides long-lasting durability far beyond the original equipment part.

This direct drop-in upgrade restores firm consistent shifts and reliable hydraulic function. Ideal for high-performance and daily-driver applications in Chrysler A500 A518 A618 48RE A904 and A727 transmissions. Kit includes the piston plus all necessary rubber D-rings and PTFE scarf-cut seals.

Easy installation – no special tools required.

• Replaces OE Plastic Accumulator Pistons Prone To Breaking And Poor Sealing
• Anodized Billet Aluminum Piston Delivers Maximum Strength And Durability
• Rubber D-Rings Provide Superior Sealing To Eliminate Cross-Circuit Leaks
• PTFE Guide Seals Prevent Piston-To-Bore Contact And Transmission Case Wear
• Restores Firm Consistent Shifts And Reliable Hydraulic Control
• Direct Drop-In Upgrade Fits Chrysler A500 A518 A618 48RE A904 A727 Transmissions
• Includes Piston Plus All Required Rubber D-Rings And PTFE Seals