Dirty Hooker Diesel - Transmission Lines

This retainer clip attaches the cooler lines to side of oil pan.

Lines that are not properly routed will almost always rub and wear through.

DHD 007-4516 Trans Line Weld On Fittings (-10AN)

Our DHD stainless steel milled transmission line fittings are a perfect solution for those DIYers that want a final solution to those leaky transmission lines. These fittings can be welded onto your existing factory transmission lines. Once welded, simply install our stainless steel flex hose kit and your good to go with a worry free leak proof system.

This is our standard series LB7/LLY complete transmission cooler line repair kit. It will work for model years 2001-2005 Chevy/GMC pickup's. They are pre-assembled and ready to install. Tools required: small tubing cutters and two 1" wrenches.

This is our deluxe series LB7/LLY complete transmission cooler line repair kit. Our lines now have military grade crimps. It will work for model years 2001-2005 Chevy/GMC pickup's. They are pre-assembled and ready to install. Tools required: small tubing cutters and two 1" wrenches.

The DHD Hardcore Hooker Line Kit replaces your damaged or leaking Duramax transmission cooler lines with the industries most comprehensive, trouble free, high quality line set available. DHD's Allison transmission cooler lines are the ONLY guaranteed leak-proof line set available in the aftermarket.

Features:

• 100% New Factory GM Hard Lines
• Stainless Steel Flex Wont Chafe, Dry Rot or Swell
• In house TIG welded Construction
• OE Routing and Fit
• No Cutting, No Welding, No Compression Fittings
• 10 -AN Threaded Connections Allow Easy Install and Serviceability of Surrounding Components.
• NO CORES

This kit will work on all 2001-2003 Allison 5-Speed transmissions and is a direct bolt-on that will utilize factory mounting clips and retainers. Installation is simple. Just remove your leaking factory hard lines, and replace with our DHD hardcore hooker line kit.

Replaces Trans Hoses:

GM 15767596, 15767598, 15767600

The DHD Hardcore Hooker Line Kit replaces your damaged or leaking Duramax transmission cooler lines with the industries most comprehensive, trouble free, high quality line set available. DHD's Allison transmission cooler lines are the ONLY guaranteed leak-proof line set available in the aftermarket.

Features:

• 100% New Factory GM Hard Lines
• Stainless Steel Flex Wont Chafe, Dry Rot or Swell
• In house TIG welded Construction
• OE Routing and Fit
• No Cutting, No Welding, No Compression Fittings
• 10 -AN Threaded Connections Allow Easy Install and Serviceability of Surrounding Components.
• NO CORES

This kit will work on all 2003-2005 Allison 5-Speed transmissions and is a direct bolt-on that will utilize factory mounting clips and retainers. Installation is simple. Just remove your leaking factory hard lines, and replace with our DHD hardcore hooker line kit.

Replaces: GM 15170215, 15170217, 15170219

This is our deluxe series LBZ/LMM complete transmission cooler line repair kit. Our lines now have military grade crimps. It will work for model years 2006-2010 Chevy/GMC pickup's. They are pre-assembled and ready to install. Tools required: small tubing cutters and two 1" wrenches.

The DHD Hardcore Hooker Line Kit replaces your damaged or leaking Duramax transmission cooler lines with the industries most comprehensive, trouble free, high quality line set available. DHD's Allison transmission cooler lines are the ONLY guaranteed leak-proof line set available in the aftermarket.

Features:

• 100% New Factory GM Hard Lines
• Stainless Steel Flex Wont Chafe, Dry Rot or Swell
• In house TIG welded Construction
• OE Routing and Fit
• No Cutting, No Welding, No Compression Fittings
• 10 -AN Threaded Connections Allow Easy Install and Serviceability of Surrounding Components.
• NO CORES

This kit will work on all 2006-2010 Allison 6-Speed Transmissions and is a direct bolt-on that will utilize factory mounting clips and retainers. Installation is simple. Just remove your leaking factory hard lines, and replace with our DHD hardcore hooker line kit.

Replaces: GM 20835123, 20835127, 20835125

The DHD Hardcore Hooker Line Kit replaces your damaged or leaking Duramax transmission cooler lines with the industries most comprehensive, trouble free, high quality line set available. DHD's Allison transmission cooler lines are the ONLY guaranteed leak-proof line set available in the aftermarket.

Features:

• 100% New Factory GM Hard Lines
• Stainless Steel Flex Wont Chafe, Dry Rot or Swell
• In house TIG welded Construction
• OE Routing and Fit
• No Cutting, No Welding, No Compression Fittings
• 10 -AN Threaded Connections Allow Easy Install and Serviceability of Surrounding Components.
• NO CORES

This kit will work on all 2011-2014 Allison 6-Speed Transmissions and is a direct bolt-on that will utilize factory mounting clips and retainers. Installation is simple. Just remove your leaking factory hard lines, and replace with our DHD hardcore hooker line kit.

NOTE: Due to revisions in trans cooler mounting and hose routing these lines will not fit 2015 or 2016 Trucks.

DHD Do-It-Yourself High Pressure Allison Trans Line Repair Kit

It is no secret that the factory GM high pressure Allison transmission lines are prone to leakage, and it is only a matter of time before your lines start leaving a puddle of transmission fluid on your driveway. We have come up with an affordable Do-It-Yourself kit that will allow you to replace those leaky Allison transmission lines once and for all! Our kit has 6 of our DHD 007-4516 Weld-On Trans Lines Fittings and our high pressure braided stainless steel transmission line set. All you have to do is use a small tubing cutter, or cut off wheel(preferred) and remove the leaky factory center section and replace it with our kit.

Note: Installation of the kit will require welding.

We have kits that will work on the 2001-2010 Allison 5-Speed and 6-Speed transmissions. Make sure select the correct kit upon checkout.

DHD Do-It-Yourself DELUXE High Pressure Allison Trans Line Repair Kit

It is no secret that the factory GM high pressure Allison transmission lines are prone to leakage, and it is only a matter of time before your lines start leaving a puddle of transmission fluid on your driveway. We have come up with an affordable Do-It-Yourself kit that will allow you to replace those leaky Allison transmission lines once and for all! Our kit has 6 of our DHD 007-4516 Weld-On Trans Lines Fittings and our high pressure braided stainless steel transmission line set. All you have to do is use a small tubing cutter, or cut off wheel(preferred) and remove the leaky factory center section and replace it with our kit.

Note: Installation of the kit will require welding.

We have kits that will work on the 2001-2015 Allison 5-Speed and 6-Speed transmissions. Make sure select the correct kit upon checkout.

DHD Do-It-Yourself DELUXE High Pressure Allison Trans Line Repair Kit

It is no secret that the factory GM high pressure Allison transmission lines are prone to leakage, and it is only a matter of time before your lines start leaving a puddle of transmission fluid on your driveway. We have come up with an affordable Do-It-Yourself kit that will allow you to replace those leaky Allison transmission lines once and for all! Our kit has 6 of our DHD 007-4516 Weld-On Trans Lines Fittings and our high pressure braided stainless steel transmission line set. All you have to do is use a small tubing cutter, or cut off wheel(preferred) and remove the leaky factory center section and replace it with our kit.

Note: Installation of the kit will require welding.

We have kits that will work on the 2001-2015 Allison 5-Speed and 6-Speed transmissions. Make sure select the correct kit upon checkout.

The DHD Ultimate Leak Free Line Kit replaces your damaged or leaking Duramax transmission cooler lines and power steering lines with the industries most comprehensive, trouble free, high quality line sets available. DHD's stainless flex line kits are the ONLY guaranteed leak-proof option available in the aftermarket.

Features:

• 100% New Factory GM Hard Lines
• Stainless Steel Flex Wont Chafe, Dry Rot or Swell
• In house TIG welded Construction
• OE Routing and Fit
• No Cutting, No Welding, No Compression Fittings
• 10 -AN Threaded Connections Allow Easy Install and Serviceability of Surrounding Components.
• NO CORES

This kit will work on all 2001-2003 Allison 5-Speed Transmissions with Orange Line Clips at the Cooler and is a direct bolt-on that will utilize factory mounting clips and retainers. Installation is simple. Just remove your leaking factory hard lines, and replace with our DHD hardcore hooker line kit.

Note: The power steering pump noise output will increase slightly with our upgrade kit. The OEM lines deaden the sound output from the stock power steering pump due to the weak expandable stock rubber. The braided stainless steel lines that we use in our kits are more rigid than factory and dont expand under pressure. The result is not being able to muffle the power steering pump noise output as effective as OEM.

Replaces Trans Lines:

GM 15767596, 15767598, 15767600

Replaces Power Steering Lines:

GM 20930009 & GM 15295841

AcDelco 36-365453 & 36-358980

Edelman 92083 & 80337

CarQuest 35898 & 37157

The DHD Ultimate Leak Free Line Kit replaces your damaged or leaking Duramax transmission cooler lines and power steering lines with the industries most comprehensive, trouble free, high quality line sets available. DHD's stainless flex line kits are the ONLY guaranteed leak-proof option available in the aftermarket.

Features:

• 100% New Factory GM Hard Lines
• Stainless Steel Flex Wont Chafe, Dry Rot or Swell
• In house TIG welded Construction
• OE Routing and Fit
• No Cutting, No Welding, No Compression Fittings
• 10 -AN Threaded Connections Allow Easy Install and Serviceability of Surrounding Components.
• NO CORES

This kit will work on all 2003-2005 Allison 5-Speed Transmissions with Purple Line Clips at the Cooler and is a direct bolt-on that will utilize factory mounting clips and retainers. Installation is simple. Just remove your leaking factory hard lines, and replace with our DHD hardcore hooker line kit.

Note: The power steering pump noise output will increase slightly with our upgrade kit. The OEM lines deaden the sound output from the stock power steering pump due to the weak expandable stock rubber. The braided stainless steel lines that we use in our kits are more rigid than factory and dont expand under pressure. The result is not being able to muffle the power steering pump noise output as effective as OEM.

Replaces Trans Lines:

GM 15170215, 15170217, 15170219

Replaces Power Steering Lines:

GM 20930009 & GM 15295841

AcDelco 36-365453 & 36-358980

Edelman 92083 & 80337

CarQuest 35898 & 37157

The DHD Ultimate Leak Free Line Kit replaces your damaged or leaking Duramax transmission cooler lines and power steering lines with the industries most comprehensive, trouble free, high quality line sets available. DHD's stainless flex line kits are the ONLY guaranteed leak-proof option available in the aftermarket.

Features:

• 100% New Factory GM Hard Lines
• Stainless Steel Flex Wont Chafe, Dry Rot or Swell
• In house TIG welded Construction
• OE Routing and Fit
• No Cutting, No Welding, No Compression Fittings
• 10 -AN Threaded Connections Allow Easy Install and Serviceability of Surrounding Components.
• NO CORES

This kit will work on all 2006-2010 Allison 6-Speed Transmissions and is a direct bolt-on that will utilize factory mounting clips and retainers. Installation is simple. Just remove your leaking factory hard lines, and replace with our DHD hardcore hooker line kit.

Note: The power steering pump noise output will increase slightly with our upgrade kit. The OEM lines deaden the sound output from the stock power steering pump due to the weak expandable stock rubber. The braided stainless steel lines that we use in our kits are more rigid than factory and dont expand under pressure. The result is not being able to muffle the power steering pump noise output as effective as OEM.

Replaces Trans Hoses:

GM 20835123, 20835127, 20835125

Replaces Power Steering Hoses:

GM 20930009 & GM 15295841 

AcDelco 36-365453 & 36-358980

Edelman 92083 & 80337

CarQuest 35898 & 37157

Fleece Performance FPE-Allison Transmission Cooler Lines

Fix your leaking transmission lines with these heavy duty, high flow, flexible transmission lines. This kit comes complete with everything needed to get the job done right the first time.
Kit Contents:
Transmission Lines
(6) 7/8"-14 O-ring to -10AN fittings
(2) 3/4"-16 O-ring to -10AN fittings (LB7-LLY kit only)
(4) Black Zip Ties
Keywords: Trans Lines, Transmission Line, Tranny Lines, Tranny Line, Transmission Lines,

Fleece Performance FPE-Allison Transmission Cooler Lines

Fix your leaking transmission lines with these heavy duty, high flow, flexible transmission lines. This kit comes complete with everything needed to get the job done right the first time.
Kit Contents:
Transmission Lines
(6) 7/8"-14 O-ring to -10AN fittings
(2) 3/4"-16 O-ring to -10AN fittings (LB7-LLY kit only)
(4) Black Zip Ties
Keywords: Trans Lines, Transmission Line, Tranny Lines, Tranny Line, Transmission Lines,

GM 29540501 Front Bellhousing 3/4 Thread Fitting Kit (Single Fitting) 2 Needed Per Bellhousing

This is a genuine GM (AC Delco) service replacement bellhousing fitting. Often times these fittings are rusted or marred up beyond repair. This part number is for one single bellhousing fitting. This fitting is the smaller (3/4) thread, and two are required per truck. Fitting has Orange Clips.

Fitment Notes: 2001-2003 Duramax diesel pickups. There was a change over in mid-year 2003, so if have a 2003 you will need to visually check to see which fittings you have.

Add another measure of protection and increase fluid flow with the easy-to-install billet aluminum PPE Transmission Oil Thermal Bypass Valve for the GM L5P Duramax Diesel.

The OEM part has restrictive internal passages. When the OEM valve fails in the open position, transmission fluid doesn’t reach your cooler. This can be caused by mechanical failure or debris. The result of stock valve failure can cause the transmission to dangerously overheat. Without properly cooled transmission fluid, the demands of towing and rigorous stop-and-go driving conditions shorten the life of transmission components.

The PPE Bypass eliminates the mechanical valve which maximizes fluid flow from the transmission cooler. For further protection, a neodymium magnet equipped service plug has been added. The removable plug traps ferrous debris and can be accessed to remove particles from the system. The factory part does not have this feature.

Features:

• Easy to install
• Neodymium magnet equipped service plug
• Won’t fail in the open position like OEM

PPE 125065000 Install Guide