Pin bore wear at the 1st/2nd accumulator circuit causes leaks and burns up clutches and bands. Sonnax oversized accumulator pin kit 54250-05K allows for tighter clearance between the pin and piston, and restores the integrity of the circuit.

Oversized pin allows for tighter clearance between pin and piston
Works with 4L30-E and both the early and late model TH180
Restores circuit integrity

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