200-4R Sonnax 3-4 Clutch Boost Spring & Retainer Assembly 8667424

Sonnax 3-4 Clutch Boost Spring & Retainer Assembly

Genuine Sonnax 3-4 Clutch Boost Spring & Retainer Assembly for the GM, Chevrolet, GMC, Cadillac 200-4R 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 200-4R units. Sonnax part number 8667424.

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 200-4R rebuild or repair.

Shipping & Support

Fast shipping and knowledgeable support on every 200-4R order.

Special Order

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