Ford CD4E and Mazda LA4A-EL transmissions may exhibit such problems as harsh engagements, and/or soft or harsh shifting, particularly from 1st to 2nd Gear. These complaints can be due to worn or out-of-round accumulator bores and/or pistons sticking in the bore. Sonnax accumulator piston kit 73840-24 for the 2-4 piston, 73840-LR for Low/Reverse and 73840-FWD for Forward.

Anodized aluminum pistons have two O-rings that prevent blow-by leakage
Pistons have been dimensionally modified to stop in different axial locations to prevent them from hanging up or sticking on the previously worn bore edges
Modified replacement springs are included to fit the smaller piston pocket
Kits available for 2-4, Low/Reverse and Forward locations
Drop-in Zip Valve™ parts install quickly and easily

Learn More About Zip Valve™ Drop-In Repairs

More From This Category

Wilwood Cap, Dust, Rear, Drive Flange, Steel, W/Logo

Wilwood Cap, Dust, Rear, Drive Flange, Steel, W/Logo

$18.56

Strange ,Dual brake kit /OEM Must 8.8 end /hard pads

Strange ,Dual brake kit /OEM Must 8.8 end /hard pads

$2,925.53

Wilwood Cable Kit, Mech P-Brake, Shelby Csx6000

Wilwood Cable Kit, Mech P-Brake, Shelby Csx6000

$381.48