4L60E Sonnax 3-4 Relay O-Ringed End Plug Kit 77964-08K

Sonnax 3-4 Relay O-Ringed End Plug Kit

Genuine Sonnax 3-4 Relay O-Ringed End Plug Kit for the GM, Chevrolet, GMC, Cadillac 4L60E 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 4L60E / 4L65E / 4L70E units. Sonnax part number 77964-08K.

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 4L60E rebuild or repair.

Shipping & Support

Fast shipping and knowledgeable support on every 4L60E order.