Prothane 1-1904-BL Jeep CJ Motor & Transmission Mount Kit Black Polyurethane 258ci 6-Cylinder

The Prothane 1-1904-BL is a complete black polyurethane motor and transmission mount combo kit designed for the Jeep CJ5, CJ7, and CJ8 equipped with the 258 c.i. 6-cylinder engine. Over time, factory rubber mounts wear out and deteriorate, allowing excess engine and transmission movement that can put the driveline in a bind, increase NVH (noise, vibration, and harshness), and rob power from the drivetrain. Prothane's precision-cast polyurethane replacements restore proper driveline alignment while adding measurable performance benefits.

Kit Contents & Features:

• Motor mounts — polyurethane replacements for OEM rubber units
• Transmission mount — features an internal metal safety interlock for added security
• Hardware included — everything needed for installation
• Black polyurethane construction — same durometer/hardness as Prothane's red units; color is a matter of preference
• Application-specific design — engineered to exact OE specifications for a direct-fit installation
• Resistant to oil, chemicals, and road contaminants — outlasts rubber in harsh environments
• Limits unwanted engine and transmission movement — controls torque for improved power transfer to the wheels
• Made in USA

Unlike solid metal mounts, Prothane's polyurethane formula provides firm, performance-oriented support without transmitting excessive vibration into the chassis. The transmission mount's internal metal interlock adds an extra layer of safety by preventing mount separation under hard use. Prothane backs this product with a lifetime warranty for the original purchaser against defects in materials and workmanship.