8L90 Sonnax Conversion Kit for Oversized Steel Signal Accumulator Pistons 154740-40K

Sonnax Conversion Kit for Oversized Steel Signal Accumulator Pistons

Genuine Sonnax Conversion Kit for Oversized Steel Signal Accumulator Pistons for the GM, Chevrolet, GMC, Cadillac 8L90 automatic transmission. Sonnax parts are the aftermarket standard for transmission repair and performance, engineered to correct common failure points and add durability beyond the original design.

Fitment

Fits 8L45 / 8L90 units. Sonnax part number 154740-40K.

Why Sonnax

Trusted by professional builders and performance shops, Sonnax components are made in the USA to exacting tolerances. This is a direct-fit upgrade for a 8L90 rebuild or repair.

Shipping & Support

Fast shipping and knowledgeable support on every 8L90 order.

Special Order

This Sonnax part is available by special order. Contact us for current price and availability before ordering.