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Engine parts such as Valve Springs, Connecting Rods, Oil Pans, Head Studs, & more for the 2001+ GM 6.6L Duramax Diesel Trucks.
We offer top brands such as AFE, Alliant Power, Dirty Hooker Diesel, & many more!
Brand: Merchant Automotive
Part Number: 10307
Replace these when removing the rear engine cover to block. Seals water jackets.
Sold in pairs...
$7.68
Brand: Mahle
Part Number: 224-3451WR
Full set requires 4 pistons.
Constructed to meet factory specifications, the MAHLE 224-3451WR Piston With Rings (Standard, Left Bank) is engineered as an OEM replacement for your 2001-2005 GM 6.6L Duramax LB7/LLY. The MAHLE Piston With Rings features a lightweight and expansion controlled design ..
$150.04
Brand: Merchant Automotive
Part Number: 4505XC
Included in the Base kit:
OEM Grade C Right and Left Head Gaskets
36 New OEM Replacement Head Bolts
Upper valve cover gaskets (now included in kit)
All Needed Seals And Gaskets
Other kits available above with additional listed parts.
NOT INCLUDED in the kit :
Lower thin ste..
$793.48
Brand: Mahle
Part Number: HS54580
General Motors Truck 2001-2004 6.6L Duramax Diesel VIN 1 Upper Engine Set, does NOT include head gaskets.
Made by Mahle for OEM quality.
Mahle part number: HS54580
See below for head gaskets...
$263.90
Brand: Mahle
Part Number: 953726
Complete upper and lower engine gasket set for the LB7 Duramax.
Mahle part number: 953726 (replaces 95-3726VR).
Does not include head bolts/gaskets.
SPECS:
Water Pump Gasket Included
Yes
Item Grade
OEM Standard
Additional Package Contents
Valve Cover Seal
Water Outlet Gas..
$419.20
Brand: Merchant Automotive
Part Number: 10263
Everything required to properly install the oil cooler on your Duramax. Fits 2001 - 2010 applicationsTrucks with newer style oil coolers may require the additional GM 12631281 Oil Cooler to block seal that is available through your local GM dealer. Merchant Automotive: 10263..
$57.81
Brand: Dorman Products
Part Number: 904-103
Features & Benefits
Dorman’s Fuel Injection Return Line and Gasket effectively prevent leaks from forming between the fuel rails and fuel injectors. The gaskets should be replaced any time the fuel injectors are serviced.
• Protects against leaks that could cause fuel pressure to ..
$18.31
Brand: Merchant Automotive
Part Number: 10117
Dont waste time trying to locate all the individual gaskets and seals needed to rebuild your LB7. Simply order one part number and have it in one box.
This kit does not include any bolts or other torque to yield fasteners..
$985.62
Brand: Merchant Automotive
Part Number: 10000
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..
$407.93
Brand: General Motors
Part Number: 97192618
Gasket - Turbo to Up pipe, LB7/LLY/LBZ/LMM/LML, 2001+ Duramax
Merchant part number: 97192618..
$20.75
-10 %
Brand: Position 1 Performance
Part Number: P1LMLPCVK
This high quality PCV Cap is machined out of a single piece of aluminum stock and has a pre-installed o-ring for a 100% leak free install.
Included in the kit: Hose, Billet PCV Cap, Assembly hardware
The PCV reroute kits GM changed somewhere in 2012 mounting hole size for whatev..
$73.65 $81.84
Brand: Pacific Performance Engineering
Part Number: 114020000
Billet aluminum valve cover breathers intended for race applications. Re-route breather hose from turbo intake to catch can along side bottom of engine. Eliminates engine oil from contaminating turbo, intercooler and intake system. Increase flow capacity to eliminate engine seal damage by reducing i..
$26.99
Brand: General Motors
Part Number: 12637647
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 flow. Greatly increased flow charecteristics over the original unit.
A great alternative to higher priced after market manifolds..
$360.41
Brand: Pacific Performance Engineering
Part Number: 114010000
Protect your 2001-2005 GM 6.6L Duramax engine with the PPE 114010000 Oil Centrifuge Filtration Kit. Clean oil increases performance and reduces engine wear. The PPE Oil Centrifuge Filtration Kit cleans oil by generating a centrifugal force 2,000 times greater than gravity. Engine oil pressure spins ..
$449.99
Brand: Carrillo
Part Number: DM6418H
The Carrillo 6.6L Duramax Pro-H Connecting Rod With H-11 Bolts is a must have in your 2001-2010 GM 6.6L Duramax engine build. Since 1963, Carrillo is recognized as the preeminent custom connecting rod manufacturer in the world. Carrillo has provided custom and prototype connecting rods to virtually ..
$2,832.90
Brand: Merchant Automotive
Part Number: 10008
10 pack of wheel well liner clips
Merchant part number: 10008..
$6.03
Brand: Automotive Racing Products
Part Number: 230-5401
This kit is a must have for any high performance Duramax! The ARP main stud kit keeps your mains from walking and fretting by clamping down on them.Includes:
Main Studs
Side Bolts
ARP Moly Lube
Torque Specs are 200 FT/LBS on the Mains with ARP Moly Lube, and 86 FT/LBS on the Side Bolts with ..
$268.87
Brand: Dorman Products
Part Number: 615-203
Features & Benefits
Prevent leaks from forming between the valve cover and the engine cylinder head with Dorman’s Engine Valve Cover Gasket. The gasket is constructed from high- quality materials for durability against extreme under hood temperatures. A long-lasting, airtight seal is ensu..
$57.33
Brand: BD Power
Part Number: 1041460
BD “Full Bore” 01-07 Chevy/GM Duramax LB7,LLY, & LBZ Exhaust Manifold
Improve exhaust flow, reduce exhaust gas temperature (EGT) and realize greater power gains with the new “Full Bore” driver’s side exhaust manifold for the ’01-’07 GM Duramax.You may not know it, but the factory driver’s side mani..
$196.95
Brand: ATI Performance Products
Part Number: 917371
ATI Diesel Super Dampers2001-2005 GM 6.6L LB7 & LLY Duramax Diesel Super DamperPart number: 917371Do you have a high horsepower diesel truck? If so, ATI has the damper for you! Eliminates torsional crankshaft vibrations Exceeds SFI 18.1 specs Laser etched timing marks Black zinc chromate..
$493.83
Backordered
Brand: General Motors
Part Number: 12622693
Rear Engine Cover, LB7/LLY/LBZ/LMM, 2001-2010
Please allow two to three days before shipment.
Part number: 12622693..
$448.71
Brand: Automotive Racing Products
Part Number: 230-2901
Chevy/GM Duramax 6.6L, 8 pieces - Flexplate Bolt Kit
Specifications
UHL
1.775˝
Thread Size
M16 x 1.5
Wrenching
5/8˝
ARP part number: 230-2901..
$96.06
Brand: General Motors
Part Number: 97209342
Purchase the GM 97209342 Rear Main Seal for your GM 6.6L Duramax. The Rear Main Seal is a GM replacement component that is made to factory standards for a long service life.
FEATURES:
Genuine OEM Replacement
Direct-Fit Installation
Rear Main Seal
Part number: 97209342..
$55.76
Brand: Mahle
Part Number: 224-3452WR
Full set requires 4 pistons.
Featuring a factory construction, the MAHLE 224-3452WR Piston With Rings (Standard, Right Bank) is an OEM replacement to your 2001-2005 GM 6.6L Duramax LB7/LLY. Each MAHLE Piston With Rings features a lightweight and expansion controlled design that maintains an OEM..
$150.04
Brand: General Motors
Part Number: 97188685
Gasket - Exhaust Manifold to Up Pipe, LB7/LLY/LBZ/LMM/LML, 2001+ Duramax
Merchant part number: 97188685..
$18.15
Brand: Automotive Racing Products
Part Number: 230-4202
01-16 Chevy 6.6L Duramax Diesel ARP Custom Age 625+ Head StudsARP® ADDS 260,000 PSI HEAD STUDS FOR DURAMAX DIESELS With performance enthusiasts adding increasing amounts of turbo boost to diesel applications, ARP® has provided an extra measure of security in the form of extra-strong he..
$1,921.86
Brand: Automotive Racing Products
Part Number: 230-5402
This is a must for High HP applications, these specialty bolt will keep the main caps from walking at High Horse Power and High RPM's.Includes Main Studs as well as the Side Bolts and ARP Moly Lube.
Torque Specs are 200 FT/LBS on the Mains with ARP Moly Lube, and 86 FT/LBS on the Side Bolts with AR..
$272.54
Brand: Mahle
Part Number: TW-610S
Mahle Clevite Thrust Washer Set for 2001-2011 6.6L Duramax Diesel.
This kit contains 3 Pieces, Position Number 1 & 5 Use with Part Number MS-2218P or MS-2218H
Mahle part number: TW-610S
Specs:
Part Numbers
CTNC109R-AMB-3776WTW610SA
Housing bore (min - max)
106.749 mm - 106.998 m..
$17.26
Brand: General Motors
Part Number: 97209341
GM 6.6L Duramax OEM Front Main Seal
Part # 97209341..
$47.05
Brand: Mahle
Part Number: HS54580A
General Motors Truck 2004-2007 LLY & LBZ 6.6L Duramax Diesel VIN 2 6 and D Head Set, does NOT include head gaskets.
Made by Mahle for OEM quality.
Mahle part number: HS54580A
See below for head gaskets...
$288.59
Brand: Mahle
Part Number: 93003605x
Options on Backorder 930036055, 930036075, 9300298895, 930029875 and 930029855 with No ETA (Updated on 6/3/2025)
-GM Duramax 6.6L Cast Piston Set
Recommended for applications up to 1000HP
-Performance stock replacement
-Piston skirts are coated with a dry film lubricant..
$1,704.14
Brand: ATI Performance Products
Part Number: 917369
ATI Diesel Super Dampers
2006-2010 GM 6.6L LLY, LBZ & LMM Duramax Diesel Super Damper
Part number: 917369
Do you have a high horsepower diesel truck? If so, ATI has the damper for you!
Eliminates torsional crankshaft vibrations
Exceeds SFI 18.1 specs
..
$493.83
Brand: Merchant Automotive
Part Number: 13939
Valve Guide Seal, LB7/LLY/LBZ/LMM/LML, 2001+ DuramaxDURAMAX Valve Guide Seal-32 per engine-16 per head
Part number: 13939..
$2.18
Brand: Mahle
Part Number: MS-2218H
Mahle Clevite high performance series main bearing set for 2001-2011 6.6L Duramax Diesel.
Min. Std. Shaft Diameter:
3.1459" (79.9059mm)
Max. Std. Shaft Diameter:
3.1466" (79.9236mm)
Min. Ver..
$146.35
Brand: Automotive Racing Products
Part Number: 230-6301
This kit is manufactured using ARP2000. Which is an alloy steel that can be safely heat treated to a higher level, producing a greater strength material than 8740. While 8740 and ARP2000 share similar characteristics – ARP2000 is capable of achieving a clamp load at 220,000 psi. ARP2000 is used wide..
$242.46
Brand: General Motors
Part Number: 12709792
This molded rubber gasket can harden over time. Any time the oil cooler is removed from the engine, this should be replaced to avoid leaks.
Number 180 in image.
GM part number: 12709792
Superseded Part Number: 97192667..
$7.22
Backordered
Brand: No Limit Manufacturing
Part Number: DMX004001K
Backordered with No ETA **Updated on 6/3/2025**
Features/Benefits
Made out of Ductile Iron, which expands less than steel, with the same strength as 1045 steel.
Machinablility is better than 1045 steel.
Easier to achieve higher tolerances, and better surface finishes.
Taller, p..
$745.00
Brand: General Motors
Part Number: 19210615
Discontinued (Updated 5/19/25)
The engine oil cooler is not typically a component that goes bad, but should be replaced after any catastrophic engine failure. Any time metal is pumped through the engine from internal failure, it can accumulate in the oil cooler. Due to the stack plate..
$0.00
Brand: Mahle
Part Number: 41909
Mahle Clevite complete engine piston ring set for 2001-2010 6.6L Duramax Diesel.
Mahle part number: 41909
Standard Specs:
Bore
4.055 in
Radial Wall Thickness
0.178 in
0.087 in
0.0 in
Width
0.118 in
0.085 in
0.078 in
0.001 i..
$231.47
Brand: Mahle
Part Number: SH-1999S
Mahle Clevite cam bearing set for 2001-2011 6.6L Duramax Diesel.
Mahle part number: SH-1999S
Specs:
Part Numbers
IS777ESH-1999SH-2006
897218210089721821109723951697239518
Material
B1AL-3
Size
Standard..
$55.78
Brand: Fluidampr
Part Number: 890101
Fluidampr Harmonic BalancerFor 2001-2005 Chevy/GM 6.6L Duramax DieselsThis is a direct replacement for OEM number 97328573
A new Fluidampr on your diesel truck will not only protect your engine from destructive torsional vibrations but will also increase TORQUE & HORSEPOWER. High perf..
$574.82
Brand: Mahle
Part Number: 95-3727
Complete upper and lower engine gasket set for the LLY & LBZ Duramax.
Mahle part number: 95-3727
Does not include head bolts/gaskets.
SPECS:
Water Pump Gasket Included
Yes
Item Grade
OEM Standard
Additional Package Contents
Valve Cover ..
$407.65
Brand: Automotive Racing Products
Part Number: 100-753x
ARP Valve Cover Bolt Kits are rated at 170,000 PSI tensile strength which is substantially stronger than grade 8 hardware. We offer them for all Duramax engines and in Hex or 12-Point Heads.Features:
170,000 PSI Tensile Strength
Black Oxide Coating
Hex & 12-Point Heads Available
ARP part num..
$92.72
Brand: General Motors
Part Number: 97192666
This gasket mounts on the oil cooler body, between elbow to rear cover.
Always replace this gasket if the elbow is removed from the oil cooler during service to prevent coolant leaks.
Number 126 in Image.
GM part number: 97192666..
$40.04
Brand: Merchant Automotive
Part Number: 10002
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..
$24.72