
- Pre-Molded Hoses: These hoses are engineered to drop right into place, making installation straightforward and hassle-free.
- High-Quality Rubber: Constructed with durable rubber, these hoses are designed to withstand the harsh conditions under your hood for lasting reliability.
- Direct-Fit Installation: The kit includes all five necessary hoses, ensuring a complete and accurate replacement without the need for modifications.

Your GM 6.6L Duramax relies on a pristine fuel system for optimal performance. Over time, the factory fuel hoses can deteriorate, leading to leaks, poor performance, and potential engine damage. The Merchant Automotive 11001 Rubber Engine Fuel Hose Kit offers a high-quality, direct-fit solution to replace these critical components, ensuring your engine gets the clean, consistent fuel supply it needs to run at its best.
Pre-Molded Hoses: These hoses are engineered to drop right into place, making installation straightforward and hassle-free.
High-Quality Rubber: Constructed with durable rubber, these hoses are designed to withstand the harsh conditions under your hood for lasting reliability.
Direct-Fit Installation: The kit includes all five necessary hoses, ensuring a complete and accurate replacement without the need for modifications.
This comprehensive kit includes the fuel filter inlet and outlet hoses, the injection pump inlet and return hoses, and the fuel rail to fuel return hose. By replacing all five, you're not just fixing one problem—you're proactively maintaining the entire engine's fuel hose system. With a 1-ye[...]
- Pre-Molded Hoses: These hoses are engineered to drop right into place, making installation straightforward and hassle-free.
- High-Quality Rubber: Constructed with durable rubber, these hoses are designed to withstand the harsh conditions under your hood for lasting reliability.
- Direct-Fit Installation: The kit includes all five necessary hoses, ensuring a complete and accurate replacement without the need for modifications.