At DOUQANG Auto Parts, we are driven by a passion for excellence and a commitment to providing top-quality automotive accessories and parts to our customers. Our journey began with a simple yet powerful vision: to create a brand that car enthusiasts and everyday drivers alike could trust for superior performance, durability, and style.

DOUQANG Diesel Fuel Injector Return Line Kit Assembly Left & Right Compatible with 2004.5-2010 Duramax 6.6L LLY LBZ LMM 2004-2010 Silverado 2500HD 3500HD Sierra 2500HD 3500HD Replace 904-123, 904-122

FITS:
For 2004-2009 Chevrolet Silverado 2500 HD V8 6.6L Turbo Diesel Return Fuel Line
For 2007 Chevrolet Silverado 2500 HD Classic V8 6.6L Turbo Diesel Return Fuel Line
For 2004-2006 Chevrolet Silverado 3500 V8 6.6L Turbo Diesel Return Fuel Line
For 2007 Chevrolet Silverado 3500 Classic V8 6.6L Turbo Diesel Return Fuel Line
For 2007-2009 Chevrolet Silverado 3500 HD V8 6.6L Turbo Diesel Return Fuel Line
For 2004-2009 GMC Sierra 2500 HD V8 6.6L Turbo Diesel Return Fuel Line
For 2007 GMC Sierra 2500 HD Classic V8 6.6L Turbo Diesel Return Fuel Line
For 2004-2006 GMC Sierra 3500 V8 6.6L Turbo Diesel Return Fuel Line
For 2007 GMC Sierra 3500 Classic V8 6.6L Turbo Diesel Return Fuel Line
For 2007-2009 GMC Sierra 3500 HD V8 6.6L Turbo Diesel Return Fuel Line

Features：

904-122 Specifications
Color Black
Fitting Inlet Gender Male
Fitting Material Plastic
Fitting Outlet Gender Female
Fitting Quantity 1
Gauge Port No
Hose/Line Maximum Pressure (psi) 40000
Hose/Line Quantity 1
Inlet Quantity 1
Inside Diameter (IN) 0.117
Length (IN) 10
Material Rubber
Outlet Quantity 2
Outside Diameter (IN) 0.31
Package Contents Fuel Feed Line
Wall Thickness (IN) 0.196 IN

904-123 Specifications
Color Black
Fitting Inlet Gender Male
Fitting Material Plastic
Fitting Outlet Gender Male
Fitting Quantity 2
Gauge Port No
Hose/Line Maximum Pressure (psi) 40000
Hose/Line Quantity 1
Inlet Quantity 1
Inside Diameter (IN) 0.117
Length (IN) 10
Material Rubber
Outlet Quantity 2
Outside Diameter (IN) 0.31
Package Contents 1 Fuel Feed Line
Wall Thickness (IN) 0.196 IN

Note: In order to bring you a better shopping experience, please make sure the product is suitable for your car before purchase. If you are not sure how to install the parts or lack the necessary experience, please seek professional help.