We are experiencing product shortages and longer than expected lead times on many items. Please email us with questions. Thank you for your patience and support.
We are experiencing product shortages and longer than expected lead times on many items. Please email us with questions. Thank you for your patience and support.
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  • Duramax
    • Duramax 2001-2004 LB7
      • EFI Live Custom Tuning
      • Intakes
      • Exhaust System
      • Fuel System
      • Engine Components
      • Turbochargers
      • Electronics/Monitors
      • Steering & Suspension Components
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      • EFI Live Custom Tuning
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    • Duramax 2006-2007 LBZ
      • EFI Live Custom Tuning
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    • 2005-2007 5.9L Cummins
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    • 1999-2003 7.3L Powerstroke
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Home Cooling System 2015-2016 LML

Cooling System

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2011-2016 LML DURAMAX COOLANT BYPASS KIT WITH PLUG
2011-2016 LML DURAMAX COOLANT BYPASS KIT WITH PLUG
Sale
$79.95
$77.55

2011-2016 LML DURAMAX COOLANT BYPASS KIT WITH PLUG

WCFAB

2011-2016 LML Duramax Coolant Bypass Kit. Preformed rubber hose routes coolant from thermostat housing to firewall/heater core connection with p...

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WCFAB 2011-2016 Duramax Upper Coolant Pipe
WCFAB 2011-2016 Duramax Upper Coolant Pipe
Sale
from $134.83

WCFAB 2011-2016 Duramax Upper Coolant Pipe

WCFAB

Powdercoat colors can be found here!     Aluminum Upper Coolant Pipe for 2011-2016 LML Duramax replaces the OEM rubber upper coolant hose and ...

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SDP LML Coolant Crossover Pipe
from $119.00

SDP LML Coolant Crossover Pipe

SDP

      This is an upgrade to the factory upper coolant hose going to the radiator. We make ours out of 304 Stainless Steel so you can be worry fre...

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WCFAB 2011-2016 LML Duramax OEM Placement Coolant Tank Kit
WCFAB 2011-2016 LML Duramax OEM Placement Coolant Tank Kit
Sale
from $416.13

WCFAB 2011-2016 LML Duramax OEM Placement Coolant Tank Kit

WCFAB

Powdercoat colors can be found here!   2011-2016 Duramax Fabricated Aluminum Coolant Tank Kit for single turbo applications, mounts in OEM coo...

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Chevrolet/GMC 6.6L Duramax Intercooler 2011-2016
Chevrolet/GMC 6.6L Duramax Intercooler 2011-2016
$1,076.95

Chevrolet/GMC 6.6L Duramax Intercooler 2011-2016

Mishimoto

Features Direct fit for 2011–2016 Chevrolet/GMC 6.6L Duramax LML 101% increase in core volume Bar-and-plate core is 73% thicker than factory All-...

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Chevrolet/GMC 6.6L Duramax Silicone Coolant Hose Kit 2011-2016
Chevrolet/GMC 6.6L Duramax Silicone Coolant Hose Kit 2011-2016
$336.95

Chevrolet/GMC 6.6L Duramax Silicone Coolant Hose Kit 2011-2016

Mishimoto

Features Direct fit for the 2011–2016 Chevrolet/GMC 6.6L Duramax LML 6061 aluminum CNC-machined coupler mates lower radiator hose to factory radi...

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Chevrolet/GMC 6.6L Duramax Thermostats (Set Of 2) 2001-2016
from $72.95

Chevrolet/GMC 6.6L Duramax Thermostats (Set Of 2) 2001-2016

Mishimoto

Features (Low Temp) Fits 2001–2016 Chevrolet/GMC 6.6L Duramax Activates at a lower temperature so coolant flows through the system earlier 174 &a...

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MISHIMOTO LIQUID CHILL® RADIATOR COOLANT ADDITIVE
MISHIMOTO LIQUID CHILL® RADIATOR COOLANT ADDITIVE
Sale
$20.80
$15.95

MISHIMOTO LIQUID CHILL® RADIATOR COOLANT ADDITIVE

Mishimoto

Features Formulated to prevent future corrossion Reduces pre-existing buildup Decreases high coolant temperatures Does not require mixing Descri...

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MISHIMOTO LIQUID CHILL® SYNTHETIC ENGINE COOLANT
MISHIMOTO LIQUID CHILL® SYNTHETIC ENGINE COOLANT
from $20.95

MISHIMOTO LIQUID CHILL® SYNTHETIC ENGINE COOLANT

Mishimoto

Features Protects against boilover to 265°F and freezing to -26°F 1 gallon of premixed synthetic coolant Reduces engine wear Drops operating temp...

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Chevrolet/GMC 6.6L Duramax Aluminum Radiator 2011-2016
Chevrolet/GMC 6.6L Duramax Aluminum Radiator 2011-2016
Sale
$910.00
$819.95

Chevrolet/GMC 6.6L Duramax Aluminum Radiator 2011-2016

Mishimoto

Features Direct fit for 2011–2016 Chevrolet/GMC 6.6L Duramax trucks 22% increase in coolant capacity All-aluminum design with durable, TIG-weld...

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Like many online stores, your item may drop-ship via a distributor. Shipping speeds are subject to change & the shipping service you choose may not be the same service your item ships via. We will try to take shipping speeds into consideration. Certain items, such as custom powder-coated products, carry a lead time. If you need something quickly. Please email us at sales@underdog-diesel.com

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