TH400 Extension Housing Seal (Buna-N) 3789056

Extension Housing Seal (Buna-N) 3789056

Extension Housing Seal (Buna-N) 3789056 for the GM, Chevrolet, GMC, Cadillac TH400 automatic transmission. A quality replacement/upgrade component for a professional TH400 rebuild or repair.

Fitment

Fits POWERGLIDE / TH400.

Ordering

This part is available by special order — contact us for current availability. Fast shipping and knowledgeable support on every TH400 order.