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Merchant Automotive Passenger-Side Injector Return Line - 2004.5-2010 Duramax
Product details
Merchant Automotive Passenger-Side Injector Return Line - 2004.5-2010 Duramax
Merchant Automotive part 400552 is a passenger-side injector return-line assembly for 2004.5-2010 GM Duramax. It routes injector return fuel back into the low-pressure return circuit.
Merchant Automotive specializes in Duramax and Allison service parts, so model year, engine code, drivetrain and emissions configuration should be matched carefully before installation.
Key Features
- Passenger-side return-line configuration
- Application-specific fittings and routing
- Direct service replacement
- Designed to prevent fuel leakage in the injector return circuit
Fitment
2004.5-2010 GM Duramax
Important Installation Notes
- Verify exact Duramax engine code, model year and drivetrain configuration before ordering.
Product Information
- Manufacturer: Merchant Automotive
- Manufacturer Part #: 400552
- Product Type: Injector Return Line
- Catalog detail: -2010 GM Duramax. Manufacturer Part #: 400552 Fuel Lines & Return component selected for Hilltop Diesel Performance. Verify exact year, model, engine, transmission, emissions configuration, and installation requirements before ordering.
How do I verify fitment?
Match the product fitment information to your exact year, make, model, engine, drivetrain and configuration. If anything is unclear, email sales@hilltopdieselperformance.com before ordering.
Where can I find shipping and return information?
Policy links are available in the site footer and checkout. Product-specific restrictions or core requirements are shown in the product description when applicable.