Duramax Tools & Misc Engine Parts

DHD's heavy duty balancer installer is a must for customers installing aftermarket dampers. Unlike the OE balancer, most performance Duramax dampers are press fit on the crankshaft. This precision fit requires precision installation! DHD's installer utilizes a self centering sleeve to help guide the..

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 eliminate check engine lights and hard starting. This OE replacement is designed to the same high-quality standards as the original componetns that w..

Over time and miles the injectors become heavily coated with carbon between the tip and sleeve causing them to stick together. When using a factory tool it rocks the injector binding it into the sleeve and will only pop up about 1/16 of an inch, by the time the injector is removed from the head the ..

The XDP LB7 Injector Cup & O-Ring Set XD410 helps hold the fuel injector in the cylinder head of your 2001-2004 GM 6.6L Duramax LB7. The factory injector cups are known to seize in the head, leak, and even corrode. When this happens it can often cause over pressurization of the cooling system le..

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 from exposure to temperature cycles and engine oil. This distortion can decrease the valves efficiency and lead to oil leaks. DHD's service kit inclu..

DMAX XD Platinum Xtreme Motor MountsFits 2001-2010 Chevy/GMC 2500/3500 HDPart# XD-MM-0110The Xtreme torque produced by the Duramax diesel destroys OE motor mounts.  These New Dmax XD series mounts are the answer. They can handle everything from stock to a full blown 1600 hp race Duramax. K..

These high performance motor mounts are the original! Since 2013, DHD engine mounts have set the standard for upgraded Duramax engine mounts. Our design maintains engine alignment and engine height while adding the strength and durability of a high performance polyurethane. The polyurethane we use i..

Fits: 2001-2016 6.6L Duramax LB7/LLY/LBZ/LMM/LML Press fit front seal to engine block & crankshaft for proper fitment of inner & outer seal body (works w/ 3878) Services GM/ISUZU 6.6L Duramax 2001+ GMT800, 2500HD & 3500 Installation instructions: Set new seal on inner body ..

Fits: 2001-2016 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LMLThe CTA Tools Duramax Rear Crankshaft Seal Installer Tool Makes installing a new rear crankshaft seal in your 2001-2016 GM 6.6L Duramax a breeze. This tool allows you to press fit the real seal to engine block & crankshaft for proper fitmen..

The Lisle 72400 Exhaust Manifold Bolt Drill Template (GM 6.6L Duramax) removes broken exhaust manifold bolts on your 6.6L Duramax without damaging the cylinder head. Tapered bolts center the base plate over the bolt holes and slip fit bushing allow you to move from hole to hole without moving the ba..

Front and Rear Engine Crankshaft Seal InstallersIncludes:Main Crank Seal Driver, Front, Duramax #10328Main Crank Seal Driver, Rear, Duramax #10330Front Main Seal, LB7 LLY LBZ LMM LML LGH L5P, 2001-2018 Duramax #97209341Rear Main Seal, LB7 LLY LBZ LMM LML LGH L5P, 2001-2018 Duramax #97209342Part numb..

Many service jobs on the Duramax require removal of the fan clutch. Without the right tool, removal can be difficult and damage to the nut can occur. Our fan clutch wrench makes for simple removal and includes a pocket to accept an air hammer bit for added convenience.Part number: 10358..

A very handy tool. Hold the flywheel in place without removing the starter! Part number: 22110..

Merchant Automotive Front Main Crank Seal DriverPart number: 10328..

Glow Plug removal can seem straight forward but if the incorrect tools are used, the chances of breaking off the glow plug or damaging the cylinder head are greatly increased. These are the same tools we have used in house at Merchant Automotive.   Kit Includes: Air Hammer Air Nip..

Merchant Automotive Rear Main Crank Seal DriverPart number: 10330..

Simply thread the T-Handles into any GM torque converter using 10 x 1.5mm converter bolts to get a firm grip that makes it easier to install heavy converters in closed bell housings. No more danger of it slipping out of your hands or cutting your self on the bell housing.Part number: 10219..

The XDP Duramax CAT Filter Adapter Wrench XD325 is the perfect addition to the XDP Duramax CAT Filter Adapter Kit XD171. Installation of the XD171 requires tightening the CAT Filter Adapter to the fuel filter head and in some cases, it can become difficult once your hands are covered in fuel, o..

Fits: 2001-2016 GM 6.6L Duramax (For Use With XDP Duramax Crankshaft Pin Kit XD331)The XDP Life-Long Cobalt Steel Drill Bit is a replacement drill bit for the XDP Duramax Crankshaft Pin Kit XD331. This drill bit is the same high-quality bit that comes with the XDP Crankshaft Pin Kit, and is availabl..

Fits: 2001-2020 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML/L5PWorks on 2001 and Newer Duramax Engines to Turn the Crankshaft Allowing Access to the Torque Converter Bolts.The 22-1/2” long, offset design allows the 36mm 12 point wrench to clear the stabilizer bar from under the truck. The wrench can al..

When it comes to installing the front and rear main seals on your Duramax Diesel engine, you are going to need the right tools for the job. Without the correct tools, you can misalign your seals, causing future leaks that will need to be addressed. Merchant Automotive has recognized the need for..

Replace your damaged starter ring gear with this new replacement from DHD. Sweating a new ring gear onto your current flywheel will eliminate the need to rebalance your rotating assembly. Its highly recommended that you replace your flywheel bolts during this service. Fitment: 2001-2023 GM Dur..

DmaxStore Billet Fuel Cap Fits 2001-2023 Chevrolet / GMC 2500HD / 3500HD  Part# DMAX-BFC-6.6 This fuel cap was designed specifically to fit the 6.6L Duramax Diesel Trucks and threads right into the factory filler neck. It is constructed of T6 6061 Aluminum and is anodize..

Does your diesel have High EGTs, Excessive SMOKE, Increased Turbo Lag, and Less Power than it used to? Let’s talk about boost leaks. Your truck needs air! Not a little bit of air. Your diesel engine needs all the incoming air it can get. Increasing air in the combustion process will help ma..

Removes glow plugs, even when compartment is not easily accessibleEasy removal in narrow engine bays and engines with glow plugs on the firewall sideEnables removal of broken glow plugs from the top of the cylinder head without damageIncludes (1) electrode puller, (1) electrode reinforced drill with..

Fits: 2003-2009 GM Topkick/Kodiak 6.6L Duramax | 2006-2016 GM Express/Savana 6.6L Duramax Maintain the proper vacuum for your vehicle's system with Dorman vacuum pumps. They are built from quality materials and are direct-fit installations for your vehicle. If you're having trouble with your OE..

Designed to Separate Quick-Connect Fittings on 3/4" Heater Lines on GM Vehicles.Hinged design allows the tool to slip over the heater hose, even in tight spaces. Slide the tool into the connector to release the line. Aluminum provides strength and durability. Heater hose disconnect demonstration/ in..

Merchant Automotive Seal Driver Handle for use with Merchant Engine Seal Driver Kt.Part number: 10352..

Fits: Universal This CTA Tools Diesel Compression Test Kit is the specialty tool your garage needs. Get the tools needed to conquer any job on your truck. Each item is made from quality materials for long service life and dependability.  Features:  High- Quality Construction ..

Needed for LB7,LLY, LBZ, LMM, LML New AcDelco Glow Plugs. Set of Eight. These nuts take a 7mm wrench.  New LB7 glow plugs come with nuts. Part number: 10251..

These high performance motor mounts have been designed to maintain the alignment features of stock mounts while adding strength and durability of a high performance polyurethane mount for years of trouble free operation. By holding your engine firmly in place these mounts give an enhanced feel to yo..

10 pack of wheel well liner clips Merchant part number: 10008..

Backordered with No ETA   **Updated on 09/05/2024** Rear Engine Cover, LB7/LLY/LBZ/LMM, 2001-2010 Please allow two to three days before shipment. Part number: 12622693..

Merchant designed this wrench in 2004 after seeing the need.  Merchant wanted  something better then the traditional pair of pliers to remove the delicate plastic sensor during fuel filter servicing.  The wrench is precision machined from T-6061 Aluminum and tolerances are kept to a tight spec to ev..

DHD 800-102 Glow Plug Delete Kit 2001-2005 LB7 LLY Duramax Diesel This is a complete kit of stainless steel glow plug delete tubes. This kit will include eight glow plug delete tubes so only one part number per truck is needed. Fitment: 2001-2005 LB7 & LLY..

Removing the plastic fuel filter water sensor with any other tool may cause damage. PPE’s Water Level Sensor Wrench is a perfect fit and will remove the water in fuel filter (WIF)sensor with ease. Manufactured from high quality 304 stainless steel and polished to a mirror like finish. Fits 2001-..

Glow Plug Strap, Glow Plug Rail, Glow Plug Conduct;2001-04 GM 6.6L LB7 DIESELOE#: 97209343Dorman part number: 904-109..

On LB7 engines with federal emissions, the glow plugs are tied together with a bar that transmits the power to each plug.  In harsh climates, its not uncommon for the bar to rust through and break the circuit, not allowing proper glow plug operation.  Inspect the bar carefully and repla..

LB7/LLY Glow Plug Delete Kit by Merchant Automotive part number: 10090..

Easily spreads all types of lock rings. Specially designed jaws are knurled on the end to prevent slippage...

Get the right tool for the job! The XDP WIF wrench is a must have for any GM Duramax owner, it makes removing and replacing your factory water in fuel sensor a breeze. The XDP WIF Wrench is specifically designed for the 12 sided plastic water sensor that is easily damaged by tools, like pliers, tha..

Finish your Duramax engine build or PCV reroute off with this billet PCV Valve Cover Kit from DHD. Our billet covers are designed to replace those rusty stamped covers and phillips screws. Each cover is milled to accept the OE diaphragm and utilizes new stainless M5 Hardware.   Features: &nb..