1988 JEEP WRANGLER 4 258cid L6 Engine Rebuild Kit RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. Easy to use parts catalog. 1988 JEEP WRANGLER 4 258cid L6 Engine Rebuild Kit | RockAuto Engine Rebuilding Kits for 1988 Jeep Wrangler for sale | eBay Fits 1988 AMC JEEP Wrangler 258 4 L6 12V. Premium Engine Rebuild Kit. This rebuild kit is provided by EPWI and contains most all the parts commonly used to rebuild an engine. EPWI provides engine rebuilder parts from their wholesale parts warehouses.