Ford CD4E and Mazda LA4A-EL transmissions often develop a leaky end plug at the pressure regulator bore causing line pressure instability, low EPC pressure and ultimately resulting in burnt clutches and bands. Replacing the OE end plug with Sonnax O-ringed end plug kit 73840-06 provides a solid seal to halt TV/EPC pressure loss from this circuit. Drop-in Zip Valve™ parts install quickly and easily.
Learn More About Zip Valve™ Drop-In Repairs

More From This Category

Sonnax O-Ringed End Plug Kit, GM, 4L80E, 5/Set, Each

Sonnax O-Ringed End Plug Kit, GM, 4L80E, 5/Set, Each

$17.94

Sonnax O-Ringed Tc Check Valve Kit, Honda 4/5 Speed (See Chart), Each

Sonnax O-Ringed Tc Check Valve Kit, Honda 4/5 Speed (See Chart), Each

$115.05

Proflow AN Port Plug, Low Profile Allen Key M14 x 1.50, Black

Proflow AN Port Plug, Low Profile Allen Key M14 x 1.50, Black

$8.74