Shop duramax return line upgrade

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$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
$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
$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
$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
$89.99
Silverado 3500 Turbocharger Coolant Return Line (17-22 6.6L Duramax HD) 667-439
AmericanTrucks.com
2
$89.99
Silverado 3500 Turbocharger Coolant Return Line (17-22 6.6L Duramax HD) 667-439
AmericanTrucks.com
$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
$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
$59.99
2013 Silverado 3500 Turbocharger Coolant Return Line (11-16 6.6L Duramax HD) 667-160
AmericanTrucks.com
2
$59.99
2013 Silverado 3500 Turbocharger Coolant Return Line (11-16 6.6L Duramax HD) 667-160
AmericanTrucks.com
$54.99
2016 Silverado 3500 Turbocharger Coolant Return Line (11-16 6.6L Duramax HD) 667-161
AmericanTrucks.com
2
$54.99
2016 Silverado 3500 Turbocharger Coolant Return Line (11-16 6.6L Duramax HD) 667-161
AmericanTrucks.com
$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
$197.88
2004.5-2010 Gm 6.6L Duramax -Gm 98062291 Driver Side Fuel Injector Return Line
SWAGPERFORMANCEPARTS
Free shipping
$197.88
2004.5-2010 Gm 6.6L Duramax -Gm 98062291 Driver Side Fuel Injector Return Line
SWAGPERFORMANCEPARTS
$139.95
Tracktech Fuel Injector Return Line Kit Left And Right For 2001-2004 Chevrolet Duramax 6.6L LB7 - Lines Only TTD0104FS568 Lines
ProSource Diesel
$139.95
Tracktech Fuel Injector Return Line Kit Left And Right For 2001-2004 Chevrolet Duramax 6.6L LB7 - Lines Only TTD0104FS568 Lines
ProSource Diesel
$98.99
PPE Engine Coolant Return Pipe 01-10 GM 6.6L Duramax 2004.5-2005 / Polished
Diesel Power Products
$98.99
PPE Engine Coolant Return Pipe 01-10 GM 6.6L Duramax 2004.5-2005 / Polished
Diesel Power Products
$11.99
LB7 Duramax Injector And Return Line Kit
Diesel Auto Power - July 7th 2025
$11.99
LB7 Duramax Injector And Return Line Kit
Diesel Auto Power - July 7th 2025
$599.95
Sasquatchparts By Samco HD Silicone Intercooler Hose Kit For 2016-2022 Colorado/Canyon 2.8L Duramax [5-Piece]
SasquatchParts.com
$599.95
Sasquatchparts By Samco HD Silicone Intercooler Hose Kit For 2016-2022 Colorado/Canyon 2.8L Duramax [5-Piece]
SasquatchParts.com
$139.95
Tracktech Fuel Injector Return Line Kit Left And Right For 2001-2004 Chevrolet Duramax 6.6L LB7 TTD0104FS568 KIT
ProSource Diesel
$139.95
Tracktech Fuel Injector Return Line Kit Left And Right For 2001-2004 Chevrolet Duramax 6.6L LB7 TTD0104FS568 KIT
ProSource Diesel
$86.95
Xdp Oer Series Fuel Return Line 2011 To 2016 6.6L Lml Duramax
Blessed Performance
$86.95
Xdp Oer Series Fuel Return Line 2011 To 2016 6.6L Lml Duramax
Blessed Performance
$289.99
$355.99
6.6L Duramax L5P 4" DPF & CAT Delete Race Pipe For 2017-2023 Chevy/GMC
SuncentAuto
18% off
$289.99
$355.99
6.6L Duramax L5P 4" DPF & CAT Delete Race Pipe For 2017-2023 Chevy/GMC
SuncentAuto
$219.73
11-16 Gm 6.6L Lml Duramax Diesel - Fuel Return Line Circuit - 12639000
SWAGPERFORMANCEPARTS
10
$219.73
11-16 Gm 6.6L Lml Duramax Diesel - Fuel Return Line Circuit - 12639000
SWAGPERFORMANCEPARTS
$178.00
3 Inch Y-Bridge Cold Side Intercooler Pipe For 2006-2010 6.6 Duramax LBZ LMM | SPELAB, Black
spelabautoparts
$178.00
3 Inch Y-Bridge Cold Side Intercooler Pipe For 2006-2010 6.6 Duramax LBZ LMM | SPELAB, Black
spelabautoparts
$21.37
Dtech Injector Return Line Kit - 04.5-10 GM Duramax - DT660023
Thoroughbred Diesel
$21.37
Dtech Injector Return Line Kit - 04.5-10 GM Duramax - DT660023
Thoroughbred Diesel
$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
$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
$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
$18.82
Alliant AP0059 Fuel Return Line Banjo Bolt 01-04 6.6L LB7 GM Duramax
Diesel Power Products
$18.82
Alliant AP0059 Fuel Return Line Banjo Bolt 01-04 6.6L LB7 GM Duramax
Diesel Power Products
$60.08
Grizzly Fuel Injector Return Line Seal Kit 17-23 GM 6.6L Duramax L5P
Diesel Power Products
$60.08
Grizzly Fuel Injector Return Line Seal Kit 17-23 GM 6.6L Duramax L5P
Diesel Power Products
$27.28
$31.57
Fuel Injector Return Line Kit &Clamps Fit Chevrolet Gmc Duramax Lly
eBay
13% off
$27.28
$31.57
Fuel Injector Return Line Kit &Clamps Fit Chevrolet Gmc Duramax Lly
eBay
$27.50
Fuel Injector Return Line Kit For 2004.5-2010 Chevy Gmc 6.6L Duramax
eBay
3
Free shipping
$27.50
Fuel Injector Return Line Kit For 2004.5-2010 Chevy Gmc 6.6L Duramax
eBay
$65.99
Duramax Lly Lbz Lmm Fuel Injector Return Line Install Kit - Metal
eBay
3
Free shipping
$65.99
Duramax Lly Lbz Lmm Fuel Injector Return Line Install Kit - Metal
eBay
$24.00
Chevrolet GMC Duramax LLY, LBZ, LMM, 6.6L Fuel Return Lines 2004.5-2010: OEM 97328733 - Tamerx SK637
TamerX
$24.00
Chevrolet GMC Duramax LLY, LBZ, LMM, 6.6L Fuel Return Lines 2004.5-2010: OEM 97328733 - Tamerx SK637
TamerX
$17.95
Dtech Injector And Return Line Kit - 01-04 GM Duramax - DT660021
Thoroughbred Diesel
$17.95
Dtech Injector And Return Line Kit - 01-04 GM Duramax - DT660021
Thoroughbred Diesel
$36.00
Bosch Fuel Injector Return Line (Left Side) 2004.5 To 2010 6.6L Lly/Lbz/Lmm Duramax
Blessed Performance
$36.00
Bosch Fuel Injector Return Line (Left Side) 2004.5 To 2010 6.6L Lly/Lbz/Lmm Duramax
Blessed Performance
$29.95
Injector Return Line, 2004.5-2010 GM 6.6L Duramax LLY LBZ LMM
ZZ Diesel
$29.95
Injector Return Line, 2004.5-2010 GM 6.6L Duramax LLY LBZ LMM
ZZ Diesel
$35.99
PPE 304 Stainless Steel Oil Return Pipe For Aftermarket Turbo (Tall) - 2001-2010 Duramax | 116005055
Thoroughbred Diesel
$35.99
PPE 304 Stainless Steel Oil Return Pipe For Aftermarket Turbo (Tall) - 2001-2010 Duramax | 116005055
Thoroughbred Diesel
$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
$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
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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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Shop duramax return line upgrade

Sponsored
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$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
$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
$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
$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
$89.99
Silverado 3500 Turbocharger Coolant Return Line (17-22 6.6L Duramax HD) 667-439
AmericanTrucks.com
2
$89.99
Silverado 3500 Turbocharger Coolant Return Line (17-22 6.6L Duramax HD) 667-439
AmericanTrucks.com
$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
$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
$59.99
2013 Silverado 3500 Turbocharger Coolant Return Line (11-16 6.6L Duramax HD) 667-160
AmericanTrucks.com
2
$59.99
2013 Silverado 3500 Turbocharger Coolant Return Line (11-16 6.6L Duramax HD) 667-160
AmericanTrucks.com
$54.99
2016 Silverado 3500 Turbocharger Coolant Return Line (11-16 6.6L Duramax HD) 667-161
AmericanTrucks.com
2
$54.99
2016 Silverado 3500 Turbocharger Coolant Return Line (11-16 6.6L Duramax HD) 667-161
AmericanTrucks.com
$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
$197.88
2004.5-2010 Gm 6.6L Duramax -Gm 98062291 Driver Side Fuel Injector Return Line
SWAGPERFORMANCEPARTS
Free shipping
$197.88
2004.5-2010 Gm 6.6L Duramax -Gm 98062291 Driver Side Fuel Injector Return Line
SWAGPERFORMANCEPARTS
$139.95
Tracktech Fuel Injector Return Line Kit Left And Right For 2001-2004 Chevrolet Duramax 6.6L LB7 - Lines Only TTD0104FS568 Lines
ProSource Diesel
$139.95
Tracktech Fuel Injector Return Line Kit Left And Right For 2001-2004 Chevrolet Duramax 6.6L LB7 - Lines Only TTD0104FS568 Lines
ProSource Diesel
$98.99
PPE Engine Coolant Return Pipe 01-10 GM 6.6L Duramax 2004.5-2005 / Polished
Diesel Power Products
$98.99
PPE Engine Coolant Return Pipe 01-10 GM 6.6L Duramax 2004.5-2005 / Polished
Diesel Power Products
$11.99
LB7 Duramax Injector And Return Line Kit
Diesel Auto Power - July 7th 2025
$11.99
LB7 Duramax Injector And Return Line Kit
Diesel Auto Power - July 7th 2025
$599.95
Sasquatchparts By Samco HD Silicone Intercooler Hose Kit For 2016-2022 Colorado/Canyon 2.8L Duramax [5-Piece]
SasquatchParts.com
$599.95
Sasquatchparts By Samco HD Silicone Intercooler Hose Kit For 2016-2022 Colorado/Canyon 2.8L Duramax [5-Piece]
SasquatchParts.com
$139.95
Tracktech Fuel Injector Return Line Kit Left And Right For 2001-2004 Chevrolet Duramax 6.6L LB7 TTD0104FS568 KIT
ProSource Diesel
$139.95
Tracktech Fuel Injector Return Line Kit Left And Right For 2001-2004 Chevrolet Duramax 6.6L LB7 TTD0104FS568 KIT
ProSource Diesel
$86.95
Xdp Oer Series Fuel Return Line 2011 To 2016 6.6L Lml Duramax
Blessed Performance
$86.95
Xdp Oer Series Fuel Return Line 2011 To 2016 6.6L Lml Duramax
Blessed Performance
$289.99
$355.99
6.6L Duramax L5P 4" DPF & CAT Delete Race Pipe For 2017-2023 Chevy/GMC
SuncentAuto
18% off
$289.99
$355.99
6.6L Duramax L5P 4" DPF & CAT Delete Race Pipe For 2017-2023 Chevy/GMC
SuncentAuto

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