Thermal Bypass Valve for 2013–2024 Dodge Ram 2500/3500 6.7L Diesel | SPELAB
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Product Information +
- Brand: SPELAB
- SKU: SPCS21-00139BK-000-W
- Availability: Many in stock
- Product Type: Thermal Bypass Valve
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PLEASE NOTE!
Description
The Thermal Bypass Valve is a precision-engineered replacement for the factory thermal bypass valve, eliminating the common issues of leaks and sticking. By ensuring that transmission fluid always circulates through the cooler, it significantly improves cooling efficiency, reduces the risk of overheating, and extends transmission life. CNC-machined from billet aluminum, this upgrade is both durable and corrosion-resistant—ideal for trucks that demand reliability under heavy load, long hauls, or high-temperature conditions.
Fitments
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2013–2024 Dodge Ram 2500 / 3500 6.7L Diesel with 68RFE and Aisin AS69RC transmissions
Key Features
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Fixes OEM Weak Points: Eliminates leaks and sticking found in the factory thermal bypass valve.
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Enhanced Cooling Efficiency: Ensures transmission fluid always flows through the cooler, reducing the risk of overheating.
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Extended Transmission Life: Better temperature control helps prevent heat-related wear and failures.
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Durable Construction: CNC-machined from billet aluminum for strength and corrosion resistance.
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Quick & Easy Installation: Installs in about 10 minutes with basic hand tools, no special equipment required.
Specifications
| Material | CNC billet aluminum |
| Weight | 0.3 kg |
| Package Dimensions | 10 × 9 × 5 cm |
| Application | Replaces factory thermal bypass valve to improve cooling system reliability |
| Installation Location | Transmission cooler line (passenger side, between transmission and cooler) |
Installed this SPELAB thermal bypass valve alongside a deep pan upgrade and the setup works flawlessly. Trans fluid temps drop fast and stay right where they should be.
The overall fit was great and the build quality feels solid. I noticed a past review complaining about the O-rings being the wrong size—just wanted to clarify that those O-rings aren't for the bypass block itself; they are meant for the metal threaded filter adapter. Don't let that review throw you off. Solid 5 stars!
Installed this SPELAB thermal bypass valve alongside a deep pan upgrade and the setup works flawlessly. Trans fluid temps drop fast and stay right where they should be.
The overall fit was great and the build quality feels solid. I noticed a past review complaining about the O-rings being the wrong size—just wanted to clarify that those O-rings aren't for the bypass block itself; they are meant for the metal threaded filter adapter. Don't let that review throw you off. Solid 5 stars!
product was good except the included o rings werent even close to being the right size. you would think the right size would come with it for your year of truck or just send a couple sizes that were used with cummins
Thermal Bypass Valve for 2013–2024 Dodge Ram 2500/3500 6.7L Diesel | SPELAB
Thermal Bypass Valve for 2013–2024 Dodge Ram 2500/3500 6.7L Diesel | SPELAB
Transmission stays 30 degs cooler just running around town
Will this fit a 2016 2500 ram with a 57 hemi. 66RFE
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Will this fit my 2007 1/2 Dodge 2500 6.7 ?
Hi, this product is not compatible with your vehicle model. We apologize, but we currently do not have a thermal bypass valve suitable for your vehicle.
