Shop How to Replace LLY Injector Fuel Return Line

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$396.00
2001-2004 LB7 Duramax Fuel Injector Line Set (Per Side) - E05 10115
D&J Precision Machine
$396.00
2001-2004 LB7 Duramax Fuel Injector Line Set (Per Side) - E05 10115
D&J Precision Machine
$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
$4,400.00
2004.5-2005 LLY Duramax Reman Exergy Fuel Injectors 60% Over (Set Of 8) - E01 10207
D&J Precision Machine
$4,400.00
2004.5-2005 LLY Duramax Reman Exergy Fuel Injectors 60% Over (Set Of 8) - E01 10207
D&J Precision Machine
$1,399.99
$1,499.99
2004.5-2005 Duramax LLY Injector Replacement Kit - Refurbished
InjectorsDirect.com
$1,399.99
$1,499.99
2004.5-2005 Duramax LLY Injector Replacement Kit - Refurbished
InjectorsDirect.com
$45.99
2004.5-2010 LLY Duramax Diesel Pickup Truck Engines 6.6L Fuel Injector Return Line Kit 97328733 0928402097 0928400552
VelocityTitan
$45.99
2004.5-2010 LLY Duramax Diesel Pickup Truck Engines 6.6L Fuel Injector Return Line Kit 97328733 0928402097 0928400552
VelocityTitan
$225.00
Injector Fuel Line Set For 2004.5 - 2005 LLY 6.6L Chevrolet GMC Duramax
Diesel Care and Performance
$225.00
Injector Fuel Line Set For 2004.5 - 2005 LLY 6.6L Chevrolet GMC Duramax
Diesel Care and Performance
$9.99
$10.99
12677004 Intermediate Fuel Feed Pipe, High Pressure Fuel Line (Pump To Rail) Compatible With Chevy Silverado Suburban Tahoe Express GMC Sierra Yukon
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12677004 Intermediate Fuel Feed Pipe, High Pressure Fuel Line (Pump To Rail) Compatible With Chevy Silverado Suburban Tahoe Express GMC Sierra Yukon
Amazon.com
$70.99
EVIL ENERGY 3/8 Fuel Line Hose 25ft Fuel Injection Hose Transmission Rubber SAE 30R9 300PSI
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66
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$70.99
EVIL ENERGY 3/8 Fuel Line Hose 25ft Fuel Injection Hose Transmission Rubber SAE 30R9 300PSI
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
$79.95
Tracktech Fuel Injector Return Line Left Or Right For 2001-2004 Chevrolet Duramax 6.6L LB7 TTD0104FS567
ProSource Diesel
$79.95
Tracktech Fuel Injector Return Line Left Or Right For 2001-2004 Chevrolet Duramax 6.6L LB7 TTD0104FS567
ProSource Diesel
$21.99
1/2" X 25' | Nylon Fuel Line Repair Tubing Coil | 4LTL
4LifetimeLines
$21.99
1/2" X 25' | Nylon Fuel Line Repair Tubing Coil | 4LTL
4LifetimeLines
$48.88
Fuel Injector Return Line Kit 97328733 0928400552 Fit Duramax 2004-2010 6.6L Diesel Truck Engines
jcarpart.com
$48.88
Fuel Injector Return Line Kit 97328733 0928400552 Fit Duramax 2004-2010 6.6L Diesel Truck Engines
jcarpart.com
$107.95
Duramax Lly Lbz Lmm Fuel Injector Return Line And Install Kit W/ Metal
eBay
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$107.95
Duramax Lly Lbz Lmm Fuel Injector Return Line And Install Kit W/ Metal
eBay
$39.99
Diesel Injector Fuel Return Hose Line Kit Fit For Duramax 6.6L LLY LBZ LMM 2004-2010 Replace: 97328733 98062291
Walmart
Free shipping
$39.99
Diesel Injector Fuel Return Hose Line Kit Fit For Duramax 6.6L LLY LBZ LMM 2004-2010 Replace: 97328733 98062291
Walmart
$28.50
Dmaxstore Fuel Rail To Return Pipe Hose, 2004.5-2010 LLY/LBZ/LMM
Dmaxstore
$28.50
Dmaxstore Fuel Rail To Return Pipe Hose, 2004.5-2010 LLY/LBZ/LMM
Dmaxstore
$38.99
Diesel Fuel Injector Fuel Return Line Kit Compatible With GM Duramax 6.6L LLY LBZ LMM Sierra Silverado 2004-2010 Replace: 97328733 98062291
Walmart
Free shipping
$38.99
Diesel Fuel Injector Fuel Return Line Kit Compatible With GM Duramax 6.6L LLY LBZ LMM Sierra Silverado 2004-2010 Replace: 97328733 98062291
Walmart
$148.81
Gm Passenger Side Fuel Injector Return Line 2004.5 To 2010 6.6L Lly/Lbz/Lmm Duramax
Blessed Performance
$148.81
Gm Passenger Side Fuel Injector Return Line 2004.5 To 2010 6.6L Lly/Lbz/Lmm Duramax
Blessed Performance
$70.95
Driver Side Fuel Injector Return Line, 2004.5-2010 LLY/LBZ/LMM, 2 Fuel Line Clips
Dmaxstore
$70.95
Driver Side Fuel Injector Return Line, 2004.5-2010 LLY/LBZ/LMM, 2 Fuel Line Clips
Dmaxstore
$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
$64.38
04.5-10 GM 6.6L Duramax Injector Return Line Right
Pure Diesel Power
$64.38
04.5-10 GM 6.6L Duramax Injector Return Line Right
Pure Diesel Power
$4.17
04.5-10 GM LLY/ LBZ/ LMM 6.6L Duramax Bosch Fuel Injector Return Line Clip
Pure Diesel Power
$4.17
04.5-10 GM LLY/ LBZ/ LMM 6.6L Duramax Bosch Fuel Injector Return Line Clip
Pure Diesel Power
$50.88
2004-2010 Duramax 6.6L Diesel Truck Engines Fuel Injector Return Line Kit Generic
motorgenic.com
Free shipping
$50.88
2004-2010 Duramax 6.6L Diesel Truck Engines Fuel Injector Return Line Kit Generic
motorgenic.com
$142.48
Gm Driver Side Fuel Injector Return Line 2004.5 To 2010 6.6L Lly/Lbz/Lmm Duramax
Blessed Performance
$142.48
Gm Driver Side Fuel Injector Return Line 2004.5 To 2010 6.6L Lly/Lbz/Lmm Duramax
Blessed Performance
$48.78
2004.5-2010 LLY Duramax Diesel Pickup Truck Engines 6.6L Fuel Injector Return Line Kit 97328733 98062291 Generic
ucarpart.com
$48.78
2004.5-2010 LLY Duramax Diesel Pickup Truck Engines 6.6L Fuel Injector Return Line Kit 97328733 98062291 Generic
ucarpart.com
$53.45
GM 97321372 Duramax Fuel Injection Return Hose LLY
DHD
$53.45
GM 97321372 Duramax Fuel Injection Return Hose LLY
DHD
$475.95
BD Diesel Injector Line Set Chevy Silverado 6.6L (2001-2004) 1050140
Redline360.com
$475.95
BD Diesel Injector Line Set Chevy Silverado 6.6L (2001-2004) 1050140
Redline360.com
$53.88
Fuel Injector Return Line Kit Fit Duramax 2004-2010 6.6L Diesel Truck Engines
vipih.com
$53.88
Fuel Injector Return Line Kit Fit Duramax 2004-2010 6.6L Diesel Truck Engines
vipih.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
$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
$74.08
Fuel Injector Return Lines Kit Lh & Rh For 2004.5 10 6.6 L Lly Duramax Diesel
Everymarket INC
$74.08
Fuel Injector Return Lines Kit Lh & Rh For 2004.5 10 6.6 L Lly Duramax Diesel
Everymarket INC
$61.99
Passenger Side Fuel Injector Return Line, 2004.5-2010 LLY/LBZ/LMM, No Clips Needed
Dmaxstore
1
$61.99
Passenger Side Fuel Injector Return Line, 2004.5-2010 LLY/LBZ/LMM, No Clips Needed
Dmaxstore
$39.99
2004.5-2010 Duramax Lly Lbz Lmm Return Line Kit Pair For Both Sides
eBay
Free shipping
$39.99
2004.5-2010 Duramax Lly Lbz Lmm Return Line Kit Pair For Both Sides
eBay
$474.00
Fitech Fuel Injection 51003: Fitech Stainless Steel Fuel Line Kits
Summit Racing
Free shipping
$474.00
Fitech Fuel Injection 51003: Fitech Stainless Steel Fuel Line Kits
Summit Racing
$43.89
Fuel Return Line Hose Pipe Injector Hose Leak Line Fit BMW 3 5 6 7 X3 X5 X6
vipih.com
$43.89
Fuel Return Line Hose Pipe Injector Hose Leak Line Fit BMW 3 5 6 7 X3 X5 X6
vipih.com
$61.48
Fuel Injector Return Line Fit For 2004.5 2010 6.6 L Lly Duramax Dies 98062291
Everymarket INC
$61.48
Fuel Injector Return Line Fit For 2004.5 2010 6.6 L Lly Duramax Dies 98062291
Everymarket INC
$172.27
2004-2007 Silverado 1500, 2004-2007 GMC Sierra 1500 Fine Lines Fuel Line Kits | Fine Lines TGL0406OM
Summit Racing
1
Free shipping
$172.27
2004-2007 Silverado 1500, 2004-2007 GMC Sierra 1500 Fine Lines Fuel Line Kits | Fine Lines TGL0406OM
Summit Racing
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Shop How to Replace LLY Injector Fuel Return Line

Sponsored
About our ads
$396.00
2001-2004 LB7 Duramax Fuel Injector Line Set (Per Side) - E05 10115
D&J Precision Machine
$396.00
2001-2004 LB7 Duramax Fuel Injector Line Set (Per Side) - E05 10115
D&J Precision Machine
$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
$4,400.00
2004.5-2005 LLY Duramax Reman Exergy Fuel Injectors 60% Over (Set Of 8) - E01 10207
D&J Precision Machine
$4,400.00
2004.5-2005 LLY Duramax Reman Exergy Fuel Injectors 60% Over (Set Of 8) - E01 10207
D&J Precision Machine
$1,399.99
$1,499.99
2004.5-2005 Duramax LLY Injector Replacement Kit - Refurbished
InjectorsDirect.com
$1,399.99
$1,499.99
2004.5-2005 Duramax LLY Injector Replacement Kit - Refurbished
InjectorsDirect.com
$45.99
2004.5-2010 LLY Duramax Diesel Pickup Truck Engines 6.6L Fuel Injector Return Line Kit 97328733 0928402097 0928400552
VelocityTitan
$45.99
2004.5-2010 LLY Duramax Diesel Pickup Truck Engines 6.6L Fuel Injector Return Line Kit 97328733 0928402097 0928400552
VelocityTitan
$225.00
Injector Fuel Line Set For 2004.5 - 2005 LLY 6.6L Chevrolet GMC Duramax
Diesel Care and Performance
$225.00
Injector Fuel Line Set For 2004.5 - 2005 LLY 6.6L Chevrolet GMC Duramax
Diesel Care and Performance
$9.99
$10.99
12677004 Intermediate Fuel Feed Pipe, High Pressure Fuel Line (Pump To Rail) Compatible With Chevy Silverado Suburban Tahoe Express GMC Sierra Yukon
Amazon.com
$9.99
$10.99
12677004 Intermediate Fuel Feed Pipe, High Pressure Fuel Line (Pump To Rail) Compatible With Chevy Silverado Suburban Tahoe Express GMC Sierra Yukon
Amazon.com
$70.99
EVIL ENERGY 3/8 Fuel Line Hose 25ft Fuel Injection Hose Transmission Rubber SAE 30R9 300PSI
Amazon.com
66
Free shipping
$70.99
EVIL ENERGY 3/8 Fuel Line Hose 25ft Fuel Injection Hose Transmission Rubber SAE 30R9 300PSI
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
$79.95
Tracktech Fuel Injector Return Line Left Or Right For 2001-2004 Chevrolet Duramax 6.6L LB7 TTD0104FS567
ProSource Diesel
$79.95
Tracktech Fuel Injector Return Line Left Or Right For 2001-2004 Chevrolet Duramax 6.6L LB7 TTD0104FS567
ProSource Diesel
$21.99
1/2" X 25' | Nylon Fuel Line Repair Tubing Coil | 4LTL
4LifetimeLines
$21.99
1/2" X 25' | Nylon Fuel Line Repair Tubing Coil | 4LTL
4LifetimeLines
$48.88
Fuel Injector Return Line Kit 97328733 0928400552 Fit Duramax 2004-2010 6.6L Diesel Truck Engines
jcarpart.com
$48.88
Fuel Injector Return Line Kit 97328733 0928400552 Fit Duramax 2004-2010 6.6L Diesel Truck Engines
jcarpart.com
$107.95
Duramax Lly Lbz Lmm Fuel Injector Return Line And Install Kit W/ Metal
eBay
Free shipping
$107.95
Duramax Lly Lbz Lmm Fuel Injector Return Line And Install Kit W/ Metal
eBay
$39.99
Diesel Injector Fuel Return Hose Line Kit Fit For Duramax 6.6L LLY LBZ LMM 2004-2010 Replace: 97328733 98062291
Walmart
Free shipping
$39.99
Diesel Injector Fuel Return Hose Line Kit Fit For Duramax 6.6L LLY LBZ LMM 2004-2010 Replace: 97328733 98062291
Walmart
$28.50
Dmaxstore Fuel Rail To Return Pipe Hose, 2004.5-2010 LLY/LBZ/LMM
Dmaxstore
$28.50
Dmaxstore Fuel Rail To Return Pipe Hose, 2004.5-2010 LLY/LBZ/LMM
Dmaxstore
$38.99
Diesel Fuel Injector Fuel Return Line Kit Compatible With GM Duramax 6.6L LLY LBZ LMM Sierra Silverado 2004-2010 Replace: 97328733 98062291
Walmart
Free shipping
$38.99
Diesel Fuel Injector Fuel Return Line Kit Compatible With GM Duramax 6.6L LLY LBZ LMM Sierra Silverado 2004-2010 Replace: 97328733 98062291
Walmart
$148.81
Gm Passenger Side Fuel Injector Return Line 2004.5 To 2010 6.6L Lly/Lbz/Lmm Duramax
Blessed Performance
$148.81
Gm Passenger Side Fuel Injector Return Line 2004.5 To 2010 6.6L Lly/Lbz/Lmm Duramax
Blessed Performance
$70.95
Driver Side Fuel Injector Return Line, 2004.5-2010 LLY/LBZ/LMM, 2 Fuel Line Clips
Dmaxstore
$70.95
Driver Side Fuel Injector Return Line, 2004.5-2010 LLY/LBZ/LMM, 2 Fuel Line Clips
Dmaxstore