BD Diesel Thermostat Bypass 68RFE/Aisin — Fits 2019-2024 Ram 6.7L

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SKU: BDD1061527
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About BD Diesel BD Diesel engineers high-quality automotive parts and ...Read More

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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About BD Diesel

BD Diesel engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full BD Diesel lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Protect Your Transmission with BD Diesel

The BD Diesel Thermostat Bypass is a critical upgrade for 2019-2024 Ram 6.7L trucks equipped with 68RFE or Aisin AS69RC transmissions. Factory cooler bypass valves are known to jam in the recirculation mode, which prevents fluid from reaching the cooler and leads to dangerous transmission temperatures. This bypass kit eliminates that failure-prone valve, ensuring your transmission fluid is always flowing through the cooler for maximum thermal protection.

Key Benefits of the Cooler Bypass

  • Prevents Overheating: Keeps transmission fluid circulating through the cooler at all times.
  • Eliminates Failure Points: Removes the stock bypass valve that is prone to jamming.
  • Engineered for Reliability: Designed specifically for the high-demand 6.7L Cummins platform.
  • Easy Installation: Includes everything needed for a direct-fit installation.

BD Diesel has been a pioneer in diesel performance since 1989, and this bypass kit is a testament to their engineering excellence. By ensuring consistent cooling, you can extend the lifespan of your transmission and maintain performance even under heavy towing or high-load conditions. Don't let a faulty factory valve cause premature transmission failure; upgrade your cooling system today. For the best selection of performance diesel parts, shop the full catalog at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2019-2021 Ram 2500 Laramie Longhorn
2019-2022 Ram 2500 Big Horn
2019-2022 Ram 2500 Laramie
2019-2022 Ram 2500 Limited
2019-2022 Ram 2500 Lone Star
2019-2022 Ram 2500 Power Wagon
2019-2022 Ram 2500 Tradesman
2021-2022 Ram 2500 Limited Longhorn
2019-2020 Ram 3500 Laramie Longhorn
2019-2022 Ram 3500 Laramie
2019-2022 Ram 3500 Limited
2019-2022 Ram 3500 Lone Star
2019-2022 Ram 3500 SLT
2019-2022 Ram 3500 Tradesman
2021-2022 Ram 3500 Limited Longhorn

Product Details

Product Description
Part Numbers
Sizing & Fit

About BD Diesel

BD Diesel engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full BD Diesel lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Protect Your Transmission with BD Diesel

The BD Diesel Thermostat Bypass is a critical upgrade for 2019-2024 Ram 6.7L trucks equipped with 68RFE or Aisin AS69RC transmissions. Factory cooler bypass valves are known to jam in the recirculation mode, which prevents fluid from reaching the cooler and leads to dangerous transmission temperatures. This bypass kit eliminates that failure-prone valve, ensuring your transmission fluid is always flowing through the cooler for maximum thermal protection.

Key Benefits of the Cooler Bypass

  • Prevents Overheating: Keeps transmission fluid circulating through the cooler at all times.
  • Eliminates Failure Points: Removes the stock bypass valve that is prone to jamming.
  • Engineered for Reliability: Designed specifically for the high-demand 6.7L Cummins platform.
  • Easy Installation: Includes everything needed for a direct-fit installation.

BD Diesel has been a pioneer in diesel performance since 1989, and this bypass kit is a testament to their engineering excellence. By ensuring consistent cooling, you can extend the lifespan of your transmission and maintain performance even under heavy towing or high-load conditions. Don't let a faulty factory valve cause premature transmission failure; upgrade your cooling system today. For the best selection of performance diesel parts, shop the full catalog at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2019-2021 Ram 2500 Laramie Longhorn
2019-2022 Ram 2500 Big Horn
2019-2022 Ram 2500 Laramie
2019-2022 Ram 2500 Limited
2019-2022 Ram 2500 Lone Star
2019-2022 Ram 2500 Power Wagon
2019-2022 Ram 2500 Tradesman
2021-2022 Ram 2500 Limited Longhorn
2019-2020 Ram 3500 Laramie Longhorn
2019-2022 Ram 3500 Laramie
2019-2022 Ram 3500 Limited
2019-2022 Ram 3500 Lone Star
2019-2022 Ram 3500 SLT
2019-2022 Ram 3500 Tradesman
2021-2022 Ram 3500 Limited Longhorn

Product Details

Product Description

About BD Diesel

BD Diesel engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full BD Diesel lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Protect Your Transmission with BD Diesel

The BD Diesel Thermostat Bypass is a critical upgrade for 2019-2024 Ram 6.7L trucks equipped with 68RFE or Aisin AS69RC transmissions. Factory cooler bypass valves are known to jam in the recirculation mode, which prevents fluid from reaching the cooler and leads to dangerous transmission temperatures. This bypass kit eliminates that failure-prone valve, ensuring your transmission fluid is always flowing through the cooler for maximum thermal protection.

Key Benefits of the Cooler Bypass

  • Prevents Overheating: Keeps transmission fluid circulating through the cooler at all times.
  • Eliminates Failure Points: Removes the stock bypass valve that is prone to jamming.
  • Engineered for Reliability: Designed specifically for the high-demand 6.7L Cummins platform.
  • Easy Installation: Includes everything needed for a direct-fit installation.

BD Diesel has been a pioneer in diesel performance since 1989, and this bypass kit is a testament to their engineering excellence. By ensuring consistent cooling, you can extend the lifespan of your transmission and maintain performance even under heavy towing or high-load conditions. Don't let a faulty factory valve cause premature transmission failure; upgrade your cooling system today. For the best selection of performance diesel parts, shop the full catalog at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2019-2021 Ram 2500 Laramie Longhorn
2019-2022 Ram 2500 Big Horn
2019-2022 Ram 2500 Laramie
2019-2022 Ram 2500 Limited
2019-2022 Ram 2500 Lone Star
2019-2022 Ram 2500 Power Wagon
2019-2022 Ram 2500 Tradesman
2021-2022 Ram 2500 Limited Longhorn
2019-2020 Ram 3500 Laramie Longhorn
2019-2022 Ram 3500 Laramie
2019-2022 Ram 3500 Limited
2019-2022 Ram 3500 Lone Star
2019-2022 Ram 3500 SLT
2019-2022 Ram 3500 Tradesman
2021-2022 Ram 3500 Limited Longhorn

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