May 09, 2017
Sonnax oil pan kit 28801-S is no longer in production. Please check with distributor for availability.
Sonnax oil filter extension kit 28801-S09K for GM Powerglide units is designed for use with Sonnax oil pan kit 28801-S. The kit properly positions the oil filter further toward the rear of the pan to ensure fluid is picked up under hard acceleration and to match the wedge shape and depth of the Sonnax pan.