All Products

Fits 2001-2004 Duramax LB7 only.

Kit contains all of the common gaskets and oring seals normally replaced in a head gasket job. We have never replaced the lower rubber valve cover gaskets unless destroyed so we have omitted them from this kit. Kit includes 2 grade C head gaskets, exhaust manifold and up pipe gaskets, injector install coppers, orings, and return seals, themostat housing gaskets as well as orings for heater, hot pipe, and bypass tube, EGR gaskets, intake flat rings and orings along with a tube of AC Delco sealant for the intake manifold to head.

"We do not use the latest GM/LML style head gaskets in our kits. I believe that the LML style gasket is a cost cutting measure and that the riveted version of the original style gasket was and still is the best so this is what we provide." -JK

Recommended additions: ARP Head studs, thermostat pair, water pump with welded impeller and gear, and glow plugs

Fits 2006-2007 Duramax LBZ (also 2006 LLY Vin 2 carry over.

Kit contains all of the common gaskets and oring seals normally replaced in a head gasket job. We have never replaced the upper (reuseable rubber) or lower (stainless steel shim) valve cover gaskets unless destroyed so we have omitted them from this kit. Kit includes 2 grade C head gaskets, exhaust manifold and up pipe gaskets, injector install coppers and orings, themostat housing gaskets as well as orings for heater, hot pipe, and bypass tube, EGR gaskets, intake flat rings and orings along with a tube of AC Delco sealant for the intake manifold to head.

"We do not use the latest GM/LML style head gaskets in our kits. I believe that the LML style gasket is a cost cutting measure and that the riveted version of the original style gasket was and still is the best so this is what we provide." -JK

Recommended additions: ARP Head studs, thermostat pair, water pump, and glow plugs. All available on our site.

Fits 2004.5-2005 Duramax LLY only.

Kit contains all of the common gaskets and oring seals normally replaced in a head gasket job. We have never replaced the upper (reuseable rubber) or lower (stainless steel shim) valve cover gaskets unless destroyed so we have omitted them from this kit. Kit includes 2 grade C head gaskets, exhaust manifold and up pipe gaskets, injector install coppers and orings, themostat housing gaskets as well as orings for heater, hot pipe, and bypass tube, EGR gaskets, intake flat rings and orings along with a tube of AC Delco sealant for the intake manifold to head.

"We do not use the latest GM/LML style head gaskets in our kits. I believe that the LML style gasket is a cost cutting measure and that the riveted version of the original style gasket was and still is the best so this is what we provide." -JK

Recommended additions: ARP Head studs, thermostat pair, water pump with welded impeller, and glow plugs. All available on our site.

Fits 2007.5-2010 Duramax LMM which is the newer body style.

Kit contains all of the common gaskets and oring seals normally replaced in a head gasket job. We have never replaced the upper (reuseable rubber) or lower (stainless steel shim) valve cover gaskets unless destroyed so we have omitted them from this kit. Kit includes 2 grade C head gaskets, exhaust manifold and up pipe gaskets, injector install coppers and orings, themostat housing gaskets as well as orings for heater, hot pipe, and bypass tube, EGR gaskets, intake flat rings and orings along with a tube of AC Delco sealant for the intake manifold to head.

"We do not use the latest GM/LML style head gaskets in our kits. I believe that the LML style gasket is a cost cutting measure and that the riveted version of the original style gasket was and still is the best so this is what we provide." -JK

Recommended additions: ARP Head studs, thermostat pair, water pump, and glow plugs. All available on our site.

ARP head stud kit fits Dmax LB7, LLY, LBZ, LMM, and LML. Does not fit L5P.

This is the harness only and does not contain bulbs

The HB kit is designed to get the maximum voltage possible to the headlamps while relieving the strain on the headlight switch, and undersized factory wiring. The result is much whiter brighter lights increasing visibility by putting more light on the road in front of you. There are currently two kits available. The first fits most any vehicle using 9005 and 9006 lamps. This includes most GM 4 lamp composites from 1990 on. For GMC Denali style lights with all 4 9005 lamps, you'll need to note so we can build special.

All kits sent will be for 9005 and 9006 headlamp setups unless otherwise noted.

"Please view or print the installation instructions from my web site."-JK

Set of 8 brand new OEM lines. Replace all 8 when doing your injectors. Yes they are expensive, but note that pile of rusty crap that you found in the injector inlet came from these lines. Rust and debris will build up between the line nut and the line even in the gentlest of climates. When the nut is turned will grind up this debris which will run down into the injector inlet bowl. Cleaning is impossible to do properly and any media blasting will leave embedded debris that will dislodge over time. New lines are plated to resist this rusting, but a good preventative after installation will help protect even further.

Fits 2001-2010 2500HD and 3500 series trucks. These joints are extremely prone to failure and should be accompanied by our support kits.

This OE idler assembly includes the frame part as well unlike aftermarket units that are the arm only.

This smooth idler pulley fits 2001-2010 Duramax including LB7, LLY, LBZ, and LMM. Each engine takes two pulleys. Listing is for one piece. Genuine GM/AC Delco parts.

"I find that the bearings are getting pretty dry feeling in the 90,000 mile range. This is a good time to do both idlers, tensioner, and belt. Replace before they fail." -JK

Set of 8ea

Use this item if you do not have cores to return. Non refundable

Brand new S&S injector for Duramax LLY. Fits 2004.5-2005 LLY only. Does not fit 2006 model year.

Requires core deposit of $150 per injector which is refundable when cores are received. Cores must be returned within 30 days in the original boxes.