
01-16 GM 6.6L Duramax Up Pipe Gasket & Bolt Set
$24.99
- Part Number: 300-126
- Est. Ship Time: Usually Ships In 1-2 Business Days

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Starting From $325.00
Everything you need to service 1 Duramax up pipe. Works on both passenger or driver side up pipes. Unlike our competitors, these bolts are dimensionally the same as OE.
Kit Includes:
(1) Triple Layer Stainless Up Pipe to Turbo Gasket
(1) Triple Layer Stainless Up Pipe to Manifold Gasket
(6) 12PT 12.9 Coated M10 Bolts
Fitment:
2001-2016 Duramax LB7 LLY LBZ LMM LML
Part Number: 300-126

The PPE 116120000 Replacement Up-Pipes for your 2001-2004 GM 6.6L LB7 Duramax increase flow, and reliability. Even a stock Duramax can produce high te..
$269.99
PCV Cap is machined out of a single piece of aluminum stock and has a pre-installed o-ring for a 100% seal-tight fitment. Get rid of that nasty, black..
$104.62
The all new redesigned intake kit for the 2006-2007 Duramax 6.6L takes advantage of our latest silicone seals and air filter designs. With improved ai..
$349.00
2004.5-2010, 6.6L, 2500/3500, 3" Turbo Direct Pipe.
Competition Exhaust Pipes
Simple bolt on installation for competition use
Built using heavy..
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Turbo Drain Line LLY/LBZ/LMM
Part Number: 97303638..
$81.45 $90.48
DHD 030-5001 Billet Rear Engine Cover Coolant Block Off Plate
DHD's Billet Coolant Passage Block Plate is used to stop the problematic Duramax cool..
$60.95
The perfect addition to any exhaust manifold replacement or upgrade on your Duramax. Our phosphate & oil coated bolts meet or exceed OE specs. Pai..
$55.99
Max-Flow High Performance Water Pump Kit
Fits 2001-2005 Silverado/Sierra LB7/LLY Duramax
Part# MAX-HPWP-0105
The Max-Flow High Performance Wa..
$409.76
Upgrade your rear engine cover and stop the coolant leaks for good!
Our blocking plate is thicker than the stock plate and has an integral square c..
$55.00
Creates a tight seal between the Exhaust Manifolds and 6.6L GM Duramax engine. Two piece kit features multi-layered 301 stainless steel, PPE Manifold ..
$19.79
GM has introduced a new manifold that will flow better then the original OEM unit. Reduced pinch area near steering shaft for a nearly ideal flo..
$324.35 $360.41
Everything required to properly install the oil cooler on your Duramax. Fits 2001 - 2010 applicationsTrucks with newer style oil coolers m..
$57.81
Max-Flow Down Pipe Support BracketFits 2001-2016 Chevrolet/GMC Silverado/Sierra 6.6L Duramax*See Fitment Notes Below*Part# MAX-DPB-STOCKIt is very com..
$24.99
Fits: 2001-2016 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML
When installing new exhaust manifolds on your 2001-2016 GM 6.6L Duramax make sure you orde..
$34.77
DHD's Deluxe LBZ LMM Low Pressure Fuel Hose Kit includes all engine related fuel supply and return hoses for 2006-2010 LBZ LMM Duramax Diesel pickups...
$179.00
DHD's heavy duty balancer installer is a must for customers installing aftermarket dampers. Unlike the OE balancer, most performance Duramax dampers a..
$325.00
Its always best practice to replace rusty, missing or damaged line retainers while servicing your LB7 injectors. These stainless DHD retainers are dir..
$66.00
ON BACKORDER TWO MONTHS OUT : updated on 04/18/2025
DHD's high flow manifold bundle increases exhaust air flow over 55% without any port modi..
$795.00
DHD 700-012AFT LB7 Duramax High Pressure Fuel Line Kit
Skip the dealer prices and replace your damaged, rusty high pressure injector lines with thi..
$399.00
These full featured OEM fit up pipes are an excellent value! These are brand new and include all the high flow, high quality features your looking for..
$169.41
If your experiencing lopey, erratic idle rpm there's a good chance your FPR or the FPR jumper harness is at fault. This FPR service kit from DHD is a ..
$335.00
*NOT LEGAL FOR SALE OR USE IN CALIFORNIA. THE MANUFACTURE, SALE, OFFER FOR SALE, OR INSTALLATION OF THIS PRODUCT MAY ALSO BE ILLEGAL NATIONWIDE UNDER ..
$409.00
*NOT LEGAL FOR SALE OR USE IN CALIFORNIA. THE MANUFACTURE, SALE, OFFER FOR SALE, OR INSTALLATION OF THIS PRODUCT MAY ALSO BE ILLEGAL NATIONWIDE UNDER ..
$599.00
Kit includes Gaskets and Hardware!Extended Length Up Pipe SetHigh Flow Manifolds RequiredThis extended length high flow up pipe set allows&n..
$335.29
Kit includes Gaskets and Hardware!Stainless Duramax Up Pipe SetBest FIT! Best Value!NO COREThese full featured OEM length up pipes are an excellent va..
$289.00
*NOT LEGAL FOR SALE OR USE IN CALIFORNIA. THE MANUFACTURE, SALE, OFFER FOR SALE, OR INSTALLATION OF THIS PRODUCT MAY ALSO BE ILLEGAL NATIONWIDE UNDER ..
$969.00
DHD Built Performance Allison Transmission Valve BodyDHD's Turbo Tony valve body is assembled in house with the best parts in the industry. DHD's 17 y..
$800.00
NEW Design, Steel DIN construction, Does not accept GM compartmental parts or OE switches. DHD 115-510 Dirty Alli-Locker 5-Speed Torque Converter..
$219.00
Replace your damaged or inoperative Duramax PCV valve with this all in one service kit from DHD. As your truck ages these diaphragms swell and distort..
$34.99
DHD's TORQ series studs provide the perfect blend of quality and value that all Motorsports enthusiast's seek. These studs are designed to provide mar..
$219.00
Featuring a factory construction, the Mahle piston (standard, left bank) is an OEM replacement to your 2001-2005 GM 6.6L Duramax LB7/LLY. Each Mahle p..
$155.16
Featuring a factory construction, the Mahle Piston (Standard, Right Bank) is an OEM replacement to your 2001-2005 GM 6.6L Duramax LB7/LLY. Each Mahle ..
$155.16
Gator Fasteners Heavy Duty Main Studs are design to hold the bottom end of your 6.6L together whether you're building a tow rig, race truck or just a ..
$234.99
All on Backorder with No ETA (Updated on 3/7/25)
The Cometic C5883 MLS Head Gasket for your 2001-2007 GM 6.6L Duramax is comprised ..
Starting From $147.28
The Alliant AP0052 Head Gasket is a direct replacement for your 2001-2010 GM 6.6L Duramax. Alliant Power provides OEM quality, without the OEM price. ..
$41.42
If you are wanting to keep your 6.6L Duramax on the road for the long haul, you need the high quality parts like these Gator Fastener Rod Bolts. ..
$209.99
Have you noticed more engine noise or vibration on your Duramax truck? If so it could mean that your engine mounts have failed. We have utilized these..
$269.99
Have you noticed more engine noise or vibration on your Duramax truck? If so it could mean that your engine mounts have failed. We have utilized these..
$269.99
Restore lost power from the valvetrain in your 2001-2016 GM 6.6L Duramax with the XDP Pushrods 7/16" Competition & Race Performance XD316. The factory..
$378.95
DHD's heavy duty balancer installer is a must for customers installing aftermarket dampers. Unlike the OE balancer, most performance Duramax dampers a..
$325.00
These stainless steel up-pipes for the 2001-2004
6.6L LB7 Duramax engine are a great upgrade over the stock up-pipes. The
mandrel-bent up-pipes flow..
$189.99
The DTech DT660027 Valve Cover Gasket & Injector Installation Kit is the gasket kit you want to have when installing injectors in your 2001-2..
$73.84
The DTech DT660014 Valve Cover Noise Isolator Grommets are a direct replacement for the OE Isolators in your 2001-2004 GM 6.6L Duramax. With the ..
$38.43
Fits: 2001-2004 GM 6.6L Duramax LB7This GM Glow Plug is an exact replacement for your 2001-2004 GM 6.6L Duramax LB7. Replacing a damaged glow plug can..
$21.70 $24.10
Fits: 2001-2004 GM 6.6L Duramax LB7 MAHLE GS33757 Valve Cover Gasket & Injector Seal Kit is an OEM replacement gasket kit for your 2001-2004 ..
$90.31