Javascript is disabled on your browser.
To view this site, you must enable JavaScript or upgrade to a JavaScript-capable browser.
To provide a better shopping experience, our website uses cookies. Continuing use of the site implies consent.
Learn More
×
Welcome To Merchant Automotive—The Duramax Diesel Engine & Allison Transmission Performance Specialists You Can Count On!
Store Locator
Request a Quote
Quick Order
Login
Register
0
Your cart is empty
Home
Choose Your Truck
Silverado/Sierra
LB7 2001-2004
LLY 2004.5-2005
LBZ 2006-2007
LMM 2007.5-2010
LML 2011-2016
L5P 2017-2019
Colorado/Canyon
LWN 2.8L 2016+
Express/Savana
LLY Van 2006-2007
LMM Van 2008-2010
LGH Van 2010.5-2016
LWN Van 2.8L 2016+
99-07 Gas Truck Transfer Case
261HD Transfer Case
263HD Transfer Case
NP246 Transfer Case
Lubricants and Sealants
Tools
Contact Us
Articles
Videos
Go
Home
-
Choose Your Truck
-
Silverado/Sierra
-
LML 2011-2016
-
Cooling System, LML
Cooling System, LML
Back
Filter
32 Products
Engine Type
LBZ
LMM
LML
Brands
ACDelco
Merchant Automotive
Make
Chevy
GMC
Model
Silverado 2500HD
Silverado 3500HD
Sierra 2500HD
Sierra 3500HD
Year
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
$569.99
$2.70
32 Products
Sort & Filter
Show
24 per page
12 per page
24 per page
48 per page
Sort by
Relevance
Relevance
Price, low to high
Price, high to low
Filter
Back Of Water Pump To Water Pump Cover Seal 2001-2016
$13.95
Add to compare
Coolant Block Drain Gasket, 2001-2018 Duramax
$3.79
Add to compare
Engine Coolant Thermostat O-ring | 2001-2020
$10.00
Add to compare
Water Pump Bypass Lower Pipe Seal | 2001-2016
$2.70
Add to compare
Heater Hose Connector at Heater Core, Inlet Outlet,2001-2014
$11.95
Add to compare
Gasket - Oil Cooler Elbow, 2001-2016 Duramax
$21.59
Add to compare
Water Pump Stud, 2001-2018, Duramax
$3.75
Add to compare
Water Pump Outlet Gasket | 2001-2016
$5.59
Add to compare
Water Pump Kit - Cover and Seals | 2006-2016
$299.99
Add to compare
Water Pump Bypass Upper Pipe Seal | 2001-2016
$3.32
Add to compare
Engine Coolant Thermostat Kit | 2011-2016
$114.95
Add to compare
Thermostat Housing Crossover At Head Gasket, LB7 LLY LBZ LMM LML LGH, 2001-2016 Duramax
$5.09
Add to compare
Engine Coolant Thermostat - Rear | 2001-2016
$49.50
Add to compare
Surge Tank Radiator Overflow Cap, 2011-2016, Duramax
$16.95
Add to compare
Rear Cover Coolant Seal, 2011-2016, Duramax
$3.69
Add to compare
Rear Cover Coolant Seal, 2011-2016, Duramax
$3.45
Add to compare
Radiator Coolant Surge Tank, 2013-2016, Duramax
$207.56
Add to compare
Radiator Coolant Surge Tank, 2011-2012, Duramax
$49.95
Add to compare
OEM Lower Radiator Hose, 2015-2016 Duramax
$179.95
Add to compare
OEM Lower Radiator Hose, 2011-2014 Duramax
$224.95
Add to compare
MA Billet Coolant Block Off Plate
$65.00
Add to compare
Lower Radiator Pipe O-ring At Radiator, 2011-2016
$7.95
Add to compare
Lower Radiator Insulator, 2001-2019 Duramax
$19.95
Add to compare
Gasket - Oil Cooler To Rear Cover, 2001-2018 Duramax
$5.19
Add to compare
Previous
1
2
Next
1 of 2
Select up to 4 items to compare.
Compare
0
now
Select up to 4 items to compare.