As a direct replacement for the failure prone OEM thermostat, the Transmission Cooler Thermostat Bypass Plug can drop fluid temperature from 15-50 degrees F by reducing fluid flow restriction to the trans cooler. In the stock application, we've seen the valve fail forcing trans fluid around the cooler in warm weather conditions that cause dangerous fluid temperatures for built and stock transmissions alike. - - Recommended for trucks with stock or built transmissions and performing heavy towing in warm climates to help keep fluid temperatures in check. - - The WCFab Transmission Cooler Thermostat Bypass Plug is a quick and easy install and will work with the following range of GM vehicles equipped with a factory installed transmission cooler thermostat bypass (6L80, 6L90, 8L90): - - 2017-2019 Chevrolet Silverado & GMC Sierra 2500HD/3500HD with 6.6L Duramax Diesel - 2014-2018 Chevrolet Silverado & GMC Sierra 1500 with 4.3L 6 Cyl, 5.3L 8 Cyl, and 6.2L 8 Cyl Gas Engines - 2015-2020 Chevrolet Suburban, Tahoe & GMC Yukon with 5.3L 8 Cyl, and 6.2L 8 Cyl Gas Engines - 2015 Cadillac Escalade with 6.2L 8 Cyl Gas Engine

• Experience fluid temperature drops from 15-50 degrees F
• Direct replacement of the failure prone OEM thermostat
• CNC Machined Billet Aluminum Thermostatic Bypass Plug
• Easy swap back to OEM setup for cold weather use
• Reduces fluid flow restriction to trans cooler
• High temperature silicone O-ring seals
• Black Anodized Finish
• Simple Installation

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The Top Outlet Billet Thermostat Housing and Upper Coolant Pipe Kit for 2006-2010 LBZ/LMM Duramax replaces the OEM upper radiator hose that normally crosses over the driver side valve cover as well as the coolant return pipe. By changing the coolant routing to an upwards and forward layout from the thermostat, this kit improves access to driver side fuel system components, adds room for larger aftermarket turbochargers, and updates engine bay appearance. Options available for single (P/N WCF100420) or twin CP3 setups (P/N WCF100424) in your choice of custom powder coat finishes. - - Replaces the following GM Part Numbers: 19330105, 15792824, 25833204, 97361881

• Required for race cover style or SXE turbochargers being mounted in the valley
• Includes coolant pipe, silicone boots, and t-bolt clamps
• CNC Machined Billet Aluminum Thermostat Upper Housing
• Compatible with factory VGT style turbochargers
• Custom Powder Coat Finish

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The Top Outlet Billet Thermostat Housing and Upper Coolant Pipe Kit for 2006-2010 LBZ/LMM Duramax replaces the OEM upper radiator hose that normally crosses over the driver side valve cover as well as the coolant return pipe. By changing the coolant routing to an upwards and forward layout from the thermostat, this kit improves access to driver side fuel system components, adds room for larger aftermarket turbochargers, and updates engine bay appearance. Options available for single (P/N WCF100420) or twin CP3 setups (P/N WCF100424) in your choice of custom powder coat finishes. - - Replaces the following GM Part Numbers: 19330105, 15792824, 25833204, 97361881

• Required for race cover style or SXE turbochargers being mounted in the valley
• Includes coolant pipe, silicone boots, and t-bolt clamps
• CNC Machined Billet Aluminum Thermostat Upper Housing
• Compatible with factory VGT style turbochargers
• Custom Powder Coat Finish

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WCFab X Fleece Performance Engineering Thermostat Housing for 1998-2018 5.9L & 6.7L Cummins is a direct replacement upgrade for the unsightly OEM part. This coolant elbow kit features a port with plug to allow you to customize your coolant routings. Comes powder coated in your choice of color to complement other upgrades such as WCFab Upper Coolant Pipes, Intake Kits and Intercooler Piping. Replacement for OEM number 68145495AA.

• 2007.5-2012 Models May Require Additional Hardware (PE-CUMM-EBP-KIT-0712) for Installation
• Features a port with plug to allow you to customize your coolant routings
• Direct Replacement for OEM Thermostat Housing
• Powder coated in your choice of color
• Made in USA

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Upgrade your plastic OEM or aftermarket engine coolant thermostat housing on your 6.7L Power Stroke with our more durable cast aluminum model! Our direct replacement thermostat housing works with all factory and replacement thermostats. New O-rings included with the kit. PROBLEM OVERVIEW COMPLAINT: Coolant leaks around the thermostat housing area, a low coolant level, or the smell of coolant during engine operation or after operation. CAUSE:A cracked thermostat housing will result in a coolant leak, potentially leading to engine overheating and damage. Visual Inspection: Carefully inspect the thermostat housing for cracks or damage. Pressure Test: Perform a coolant system pressure test to ensure the system maintains pressure and observe for leaks at all split lines, including the thermostat housing and coolant crossover manifold. SOLUTION: The Fleece Performance thermostat housing upgrade is a drop-in, direct factory replacement for the weak plastic housing that can become brittle overtime! Application Notes Replaces Ford Part Number: RH315 (LC3Z8592B) and Dorman Part Number 902-1074 Fits the following vehicles: 2011-2025 F250 Super Duty 2011-2025 F350 Super Duty 2011-2025 F450 Super Duty 2011-2025 F550 Super Duty 2016-2019 F650 Super Duty 2016-2019 F750 Super Duty 2021-2026 F650 Super Duty 2021-2026 F750 Super Duty 2020-2025 F600 Super Duty

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The Fleece Performance replacement thermostat housing with auxiliary port is a direct replacement part for model years 1998.5-2007 RAM with 5.9L Cummins and 2013-2018 RAM with 6.7L Cummins. The auxiliary port is threaded to accept a -10AN (7/8"-14) fitting to allow you to customize your coolant routings and includes port plug FPE-SP-7814. APPLICATION NOTES Direct replacement for thermostat elbow included in our coolant bypass kits: FPE-CLNTBYPS-CUMM-0712 and FPE-CLNTBYPS-CUMM-1318. Direct replacement for Cummins part numbers 5283433 and 3943297. Auxiliary port is threaded to accept a -10AN (7/8"-14) fitting.

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