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$39.83
GM 6.6L Duramax LLY, LBZ, LMM Fuel Injector Return Line Kit 2004-2010 | Bostech BD6301637
Bostech
$39.83
GM 6.6L Duramax LLY, LBZ, LMM Fuel Injector Return Line Kit 2004-2010 | Bostech BD6301637
Bostech
$33.13
Duramax Injector Return Line Kit 2004.5 - 2010
Industrial Injection Diesel Performance
12
$33.13
Duramax Injector Return Line Kit 2004.5 - 2010
Industrial Injection Diesel Performance
$30.39
Zieichy Diesel Fuel Injector Return Line Kit W/Clamps Clips Compatible With Chevy GMC 2004.5-2010 6.6L LLY LBZ LMM Duramax Engine,Replaces 97328733,
Amazon.com
$30.39
Zieichy Diesel Fuel Injector Return Line Kit W/Clamps Clips Compatible With Chevy GMC 2004.5-2010 6.6L LLY LBZ LMM Duramax Engine,Replaces 97328733,
Amazon.com
$22.99
Injector Return Line Kit For 2004.5-2010 Duramax LLY, LBZ And LMM. Services 1 Side.
Diesel Auto Power - July 7th 2025
$22.99
Injector Return Line Kit For 2004.5-2010 Duramax LLY, LBZ And LMM. Services 1 Side.
Diesel Auto Power - July 7th 2025
$44.99
Injector Return Line Kit For 2004.5-2010 Duramax LLY, LBZ And LMM. (1 Side) With Metal Fittings
Diesel Auto Power - July 7th 2025
$44.99
Injector Return Line Kit For 2004.5-2010 Duramax LLY, LBZ And LMM. (1 Side) With Metal Fittings
Diesel Auto Power - July 7th 2025
$160.17
GM 6.6L Duramax Ready To Install Right Fuel Return Line 2004-2010 | Bostech DEC010292
Bostech
$160.17
GM 6.6L Duramax Ready To Install Right Fuel Return Line 2004-2010 | Bostech DEC010292
Bostech
$99.95
Tracktech Fuel Injector Return Line Set For 2004.5-2010 Chevrolet Duramax 6.6L LLY LBZ LMM TTD0410FS573
ProSource Diesel
1
$99.95
Tracktech Fuel Injector Return Line Set For 2004.5-2010 Chevrolet Duramax 6.6L LLY LBZ LMM TTD0410FS573
ProSource Diesel
$339.98
2011-16 6.6L Duramax Fuel Injection Return Hose
Industrial Injection Diesel Performance
$339.98
2011-16 6.6L Duramax Fuel Injection Return Hose
Industrial Injection Diesel Performance
$150.85
GM 6.6L Duramax Ready To Install Left Fuel Return Line 2004-2010 | Bostech DEC010291
Bostech
$150.85
GM 6.6L Duramax Ready To Install Left Fuel Return Line 2004-2010 | Bostech DEC010291
Bostech
$31.99
Lskioer Diesel Fuel Injector Return Line Rail Kit W/Clips Fits For Chevy GMC Duramax LLY LBZ LMM 6.6L Engine, Replaces 97328733, 98062291, 97359750
Amazon.com
$31.99
Lskioer Diesel Fuel Injector Return Line Rail Kit W/Clips Fits For Chevy GMC Duramax LLY LBZ LMM 6.6L Engine, Replaces 97328733, 98062291, 97359750
Amazon.com
$27.95
Labwork Fuel Injector Return Line Kit Replacement For 6.6L LLY Duramax Pickup Truck Engines 2004-2010
Amazon.com
$27.95
Labwork Fuel Injector Return Line Kit Replacement For 6.6L LLY Duramax Pickup Truck Engines 2004-2010
Amazon.com
$38.95
Swag Performance Gm Lly / Lbz / Lmm Duramax Fuel Injector Return Line Kit
SWAGPERFORMANCEPARTS
1
Free shipping
$38.95
Swag Performance Gm Lly / Lbz / Lmm Duramax Fuel Injector Return Line Kit
SWAGPERFORMANCEPARTS
$23.67
04.5-10 GM 6.6L Duramax Dtech Injector Return Line Kit
Pure Diesel Power
$23.67
04.5-10 GM 6.6L Duramax Dtech Injector Return Line Kit
Pure Diesel Power
$44.78
Fuel Injector Return Line Kit Fit Duramax 2004-2010 6.6L Diesel Truck Engines
www.madhornets.com
$44.78
Fuel Injector Return Line Kit Fit Duramax 2004-2010 6.6L Diesel Truck Engines
www.madhornets.com
$98.99
PPE Engine Coolant Return Pipe 01-10 GM 6.6L Duramax 2006-2010 / Polished
Diesel Power Products
2
$98.99
PPE Engine Coolant Return Pipe 01-10 GM 6.6L Duramax 2006-2010 / Polished
Diesel Power Products
$48.78
Fuel Injector Return Line Kit 97328733 0928400552 Fit Duramax 2004-2010 6.6L Diesel Truck Engines
jcarpart.com
$48.78
Fuel Injector Return Line Kit 97328733 0928400552 Fit Duramax 2004-2010 6.6L Diesel Truck Engines
jcarpart.com
$48.88
2004-2010 Duramax Diesel Truck Engines 6.6L Fuel Injector Return Line Kit 97328733 8973287331 Generic
jcarpart.com
$48.88
2004-2010 Duramax Diesel Truck Engines 6.6L Fuel Injector Return Line Kit 97328733 8973287331 Generic
jcarpart.com
$64.99
2010 Silverado 2500 Turbocharger Oil Return Line (07-10 6.6L Duramax HD) TCA15457
AmericanTrucks.com
2
$64.99
2010 Silverado 2500 Turbocharger Oil Return Line (07-10 6.6L Duramax HD) TCA15457
AmericanTrucks.com
$59.99
2011 Silverado 2500 Turbocharger Coolant Return Line (11-16 6.6L Duramax HD) 667-160
AmericanTrucks.com
2
$59.99
2011 Silverado 2500 Turbocharger Coolant Return Line (11-16 6.6L Duramax HD) 667-160
AmericanTrucks.com
$54.99
2016 Silverado 2500 Turbocharger Coolant Return Line (11-16 6.6L Duramax HD) 667-161
AmericanTrucks.com
2
$54.99
2016 Silverado 2500 Turbocharger Coolant Return Line (11-16 6.6L Duramax HD) 667-161
AmericanTrucks.com
$50.57
04.5-10 GM 6.6L Duramax Bosch Driver Side Fuel Injector Return Line
Pure Diesel Power
$50.57
04.5-10 GM 6.6L Duramax Bosch Driver Side Fuel Injector Return Line
Pure Diesel Power
$14.02
BTS Fuel Injector Return Line Seal Kit, Compatible With GM Duramax 6.6L LB7, 01-04, 5PCS Aftermarket Replacement For OEM 98065992, 97228933, Kit De
Amazon.com
$14.02
BTS Fuel Injector Return Line Seal Kit, Compatible With GM Duramax 6.6L LB7, 01-04, 5PCS Aftermarket Replacement For OEM 98065992, 97228933, Kit De
Amazon.com
$10.93
Duramax Injector And Return Line Kit
Diesel Auto Power - July 7th 2025
$10.93
Duramax Injector And Return Line Kit
Diesel Auto Power - July 7th 2025
$22.29
97321375 Diesel Fuel Rail To Return Pipe For Duramax, Compatible With 2006-2009 6.6L LBZ LLY LMM Duramax Engines Hose
Amazon.com
$22.29
97321375 Diesel Fuel Rail To Return Pipe For Duramax, Compatible With 2006-2009 6.6L LBZ LLY LMM Duramax Engines Hose
Amazon.com
$79.99
2012 Silverado 2500 Turbocharger Oil Return Line (11-16 6.6L Duramax HD) 904-140
AmericanTrucks.com
2
$79.99
2012 Silverado 2500 Turbocharger Oil Return Line (11-16 6.6L Duramax HD) 904-140
AmericanTrucks.com
$64.99
2012 Silverado 2500 Turbocharger Oil Return Line (11-16 6.6L Duramax HD) TCA15458
AmericanTrucks.com
2
$64.99
2012 Silverado 2500 Turbocharger Oil Return Line (11-16 6.6L Duramax HD) TCA15458
AmericanTrucks.com
$133.80
04.5-10 GM 6.6L Duramax OEM Driver Side Fuel Injector Return Line
Pure Diesel Power
$133.80
04.5-10 GM 6.6L Duramax OEM Driver Side Fuel Injector Return Line
Pure Diesel Power
$89.99
2022 Silverado 2500 Turbocharger Coolant Return Line (17-22 6.6L Duramax HD) 667-439
AmericanTrucks.com
2
$89.99
2022 Silverado 2500 Turbocharger Coolant Return Line (17-22 6.6L Duramax HD) 667-439
AmericanTrucks.com
$139.95
Tracktech Fuel Injector Return Line Set For 2011-2016 Chevrolet Duramax 6.6L LML TTD1116FS574
ProSource Diesel
$139.95
Tracktech Fuel Injector Return Line Set For 2011-2016 Chevrolet Duramax 6.6L LML TTD1116FS574
ProSource Diesel
$99.99
2010 Silverado 3500 Turbocharger Oil Return Line (07-10 6.6L Duramax HD) 904-125
AmericanTrucks.com
2
$99.99
2010 Silverado 3500 Turbocharger Oil Return Line (07-10 6.6L Duramax HD) 904-125
AmericanTrucks.com
$3.90
LB7 Duramax Fuel Return Line Kit
Diesel Auto Power - July 7th 2025
$3.90
LB7 Duramax Fuel Return Line Kit
Diesel Auto Power - July 7th 2025
$139.95
Tracktech Fuel Injector Return Line Kit Left And Right For 2001-2004 Chevrolet Duramax 6.6L LB7 - Lines + Gaskets + Bolts TTD0104FS568 Gaskets Bolts
ProSource Diesel
$139.95
Tracktech Fuel Injector Return Line Kit Left And Right For 2001-2004 Chevrolet Duramax 6.6L LB7 - Lines + Gaskets + Bolts TTD0104FS568 Gaskets Bolts
ProSource Diesel
$33.13
04.5-10 GM 6.6L Duramax Injector Return Line Hose Kit
Pure Diesel Power
$33.13
04.5-10 GM 6.6L Duramax Injector Return Line Hose Kit
Pure Diesel Power
$99.99
2016 Silverado 3500 Turbocharger Oil Return Line (11-16 6.6L Duramax HD) APTOL019
AmericanTrucks.com
$99.99
2016 Silverado 3500 Turbocharger Oil Return Line (11-16 6.6L Duramax HD) APTOL019
AmericanTrucks.com
$18.76
01-04 GM 6.6L Duramax Dorman Return Line Gasket Kit
Pure Diesel Power
95
$18.76
01-04 GM 6.6L Duramax Dorman Return Line Gasket Kit
Pure Diesel Power
$52.26
04.5-10 GM 6.6L Duramax Bosch Passenger Side Fuel Injector Return Line
Pure Diesel Power
$52.26
04.5-10 GM 6.6L Duramax Bosch Passenger Side Fuel Injector Return Line
Pure Diesel Power
Including results for duramax return line upgrade.
Do you want results only for Durmax Return Line Upgrade?
How to Fix: Duramax Injector Return Line Replacement (Links to parts in description ⬇️)
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$39.83
GM 6.6L Duramax LLY, LBZ, LMM Fuel Injector Return Line Kit 2004-2010 | Bostech BD6301637
Bostech
$39.83
GM 6.6L Duramax LLY, LBZ, LMM Fuel Injector Return Line Kit 2004-2010 | Bostech BD6301637
Bostech
$33.13
Duramax Injector Return Line Kit 2004.5 - 2010
Industrial Injection Diesel Performance
12
$33.13
Duramax Injector Return Line Kit 2004.5 - 2010
Industrial Injection Diesel Performance
$30.39
Zieichy Diesel Fuel Injector Return Line Kit W/Clamps Clips Compatible With Chevy GMC 2004.5-2010 6.6L LLY LBZ LMM Duramax Engine,Replaces 97328733,
Amazon.com
$30.39
Zieichy Diesel Fuel Injector Return Line Kit W/Clamps Clips Compatible With Chevy GMC 2004.5-2010 6.6L LLY LBZ LMM Duramax Engine,Replaces 97328733,
Amazon.com
$22.99
Injector Return Line Kit For 2004.5-2010 Duramax LLY, LBZ And LMM. Services 1 Side.
Diesel Auto Power - July 7th 2025
$22.99
Injector Return Line Kit For 2004.5-2010 Duramax LLY, LBZ And LMM. Services 1 Side.
Diesel Auto Power - July 7th 2025
$44.99
Injector Return Line Kit For 2004.5-2010 Duramax LLY, LBZ And LMM. (1 Side) With Metal Fittings
Diesel Auto Power - July 7th 2025
$44.99
Injector Return Line Kit For 2004.5-2010 Duramax LLY, LBZ And LMM. (1 Side) With Metal Fittings
Diesel Auto Power - July 7th 2025
$160.17
GM 6.6L Duramax Ready To Install Right Fuel Return Line 2004-2010 | Bostech DEC010292
Bostech
$160.17
GM 6.6L Duramax Ready To Install Right Fuel Return Line 2004-2010 | Bostech DEC010292
Bostech
$99.95
Tracktech Fuel Injector Return Line Set For 2004.5-2010 Chevrolet Duramax 6.6L LLY LBZ LMM TTD0410FS573
ProSource Diesel
1
$99.95
Tracktech Fuel Injector Return Line Set For 2004.5-2010 Chevrolet Duramax 6.6L LLY LBZ LMM TTD0410FS573
ProSource Diesel
$339.98
2011-16 6.6L Duramax Fuel Injection Return Hose
Industrial Injection Diesel Performance
$339.98
2011-16 6.6L Duramax Fuel Injection Return Hose
Industrial Injection Diesel Performance
$150.85
GM 6.6L Duramax Ready To Install Left Fuel Return Line 2004-2010 | Bostech DEC010291
Bostech
$150.85
GM 6.6L Duramax Ready To Install Left Fuel Return Line 2004-2010 | Bostech DEC010291
Bostech
$31.99
Lskioer Diesel Fuel Injector Return Line Rail Kit W/Clips Fits For Chevy GMC Duramax LLY LBZ LMM 6.6L Engine, Replaces 97328733, 98062291, 97359750
Amazon.com
$31.99
Lskioer Diesel Fuel Injector Return Line Rail Kit W/Clips Fits For Chevy GMC Duramax LLY LBZ LMM 6.6L Engine, Replaces 97328733, 98062291, 97359750
Amazon.com
$27.95
Labwork Fuel Injector Return Line Kit Replacement For 6.6L LLY Duramax Pickup Truck Engines 2004-2010
Amazon.com
$27.95
Labwork Fuel Injector Return Line Kit Replacement For 6.6L LLY Duramax Pickup Truck Engines 2004-2010
Amazon.com
$38.95
Swag Performance Gm Lly / Lbz / Lmm Duramax Fuel Injector Return Line Kit
SWAGPERFORMANCEPARTS
1
Free shipping
$38.95
Swag Performance Gm Lly / Lbz / Lmm Duramax Fuel Injector Return Line Kit
SWAGPERFORMANCEPARTS
$23.67
04.5-10 GM 6.6L Duramax Dtech Injector Return Line Kit
Pure Diesel Power
$23.67
04.5-10 GM 6.6L Duramax Dtech Injector Return Line Kit
Pure Diesel Power
$44.78
Fuel Injector Return Line Kit Fit Duramax 2004-2010 6.6L Diesel Truck Engines
www.madhornets.com
$44.78
Fuel Injector Return Line Kit Fit Duramax 2004-2010 6.6L Diesel Truck Engines
www.madhornets.com
$98.99
PPE Engine Coolant Return Pipe 01-10 GM 6.6L Duramax 2006-2010 / Polished
Diesel Power Products
2
$98.99
PPE Engine Coolant Return Pipe 01-10 GM 6.6L Duramax 2006-2010 / Polished
Diesel Power Products
$48.78
Fuel Injector Return Line Kit 97328733 0928400552 Fit Duramax 2004-2010 6.6L Diesel Truck Engines
jcarpart.com
$48.78
Fuel Injector Return Line Kit 97328733 0928400552 Fit Duramax 2004-2010 6.6L Diesel Truck Engines
jcarpart.com
$48.88
2004-2010 Duramax Diesel Truck Engines 6.6L Fuel Injector Return Line Kit 97328733 8973287331 Generic
jcarpart.com
$48.88
2004-2010 Duramax Diesel Truck Engines 6.6L Fuel Injector Return Line Kit 97328733 8973287331 Generic
jcarpart.com
$64.99
2010 Silverado 2500 Turbocharger Oil Return Line (07-10 6.6L Duramax HD) TCA15457
AmericanTrucks.com
2
$64.99
2010 Silverado 2500 Turbocharger Oil Return Line (07-10 6.6L Duramax HD) TCA15457
AmericanTrucks.com