SPELAB
SPELAB Coolant Bypass Kit For 2003-2018 Dodge Ram 6.7L/5.9L Diesel
MPN: SPCS01046
---tab Description--- The Coolant Bypass Kit is essential for Dodge Ram 5.9L/6.7L diesel as it addresses the factory design flaw of insufficient coolant flow to rear cylinders. Without this modification, the restricted…
Daily DriverTow PigStreet Performance
$149
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Fitment sensitive
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Warranty
Warranty Information Pending
Warranty information has not yet been provided for this product. Contact FullSpecDiesel for help locating the applicable manufacturer or supplier warranty.
View complete warranty---tab Description---
The Coolant Bypass Kit is essential for Dodge Ram 5.9L/6.7L diesel as it addresses the factory design flaw of insufficient coolant flow to rear cylinders. Without this modification, the restricted coolant circulation causes dangerous localized overheating, excessive pressure buildup, and ultimately leads to catastrophic failures like blown freeze plugs or permanent engine damage - issues commonly reported in unmodified diesel engines.
Key Features
Solves Overheating Issues: Specifically designed for 2003-2018 Dodge Ram 5.9L/6.7L diesel engines to improve coolant flow to rear cylinders, reducing excessive heat buildup and preventing blown freeze plugs or engine damage.
Enhances Engine Reliability: Balances temperatures across all six cylinders, minimizing thermal stress and extending engine life—prevents scored rear cylinders and catastrophic failures.
Leak-Proof, High-Quality Components: Includes braided stainless steel hoses and AN O-ring fittings for a secure, high-pressure-resistant installation.
Smart Temperature-Controlled Design (Superior to Competitors): Features a temperature-activated secondary thermostat (not pressure-based), proactively regulating coolant flow before overheating occurs.
Benefits
Reduces rear cylinder temps, ensuring balanced engine performance
Prevents blown freeze plugs, scored cylinders, and engine failure
Durable construction for long-term reliability
Backed by a 12-month warranty
Installation
Coolant Bypass Kit For 2003-2018 Dodge Ram 6.7L/5.9L Diesel
Intake Manifold Details
Unique Design Allows Better Installation Of The Intake Manifold.
---tab Fitment---
• 2003-2007 Dodge Ram 5.9L Diesel (Only Manual Transmission)
• 2007.5-2018 Dodge Ram 6.7L Diesel (Manual & Automatic Transmissions)
---tab Shipping & Returns---
Fast Shipping Policy
Your order will be dispatched within 1-2 business days , and the package will arrive within your order's estimated date. Click for Shipping Policy
Easy Return Policy
Every order comes with a 14-day free return , which means you don't have to pay for a return slip. Click for Return Policy
---tab Description---
The Coolant Bypass Kit is essential for Dodge Ram 5.9L/6.7L diesel as it addresses the factory design flaw of insufficient coolant flow to rear cylinders. Without this modification, the restricted coolant circulation causes dangerous localized overheating, excessive pressure buildup, and ultimately leads to catastrophic failures like blown freeze plugs or permanent engine damage - issues commonly reported in unmodified diesel engines.
Key Features
Solves Overheating Issues: Specifically designed for 2003-2018 Dodge Ram 5.9L/6.7L diesel engines to improve coolant flow to rear cylinders, reducing excessive heat buildup and preventing blown freeze plugs or engine damage.
Enhances Engine Reliability: Balances temperatures across all six cylinders, minimizing thermal stress and extending engine life—prevents scored rear cylinders and catastrophic failures.
Leak-Proof, High-Quality Components: Includes braided stainless steel hoses and AN O-ring fittings for a secure, high-pressure-resistant installation.
Smart Temperature-Controlled Design (Superior to Competitors): Features a temperature-activated secondary thermostat (not pressure-based), proactively regulating coolant flow before overheating occurs.
Benefits
Reduces rear cylinder temps, ensuring balanced engine performance
Prevents blown freeze plugs, scored cylinders, and engine failure
Durable construction for long-term reliability
Backed by a 12-month warranty
Installation
Coolant Bypass Kit For 2003-2018 Dodge Ram 6.7L/5.9L Diesel
Intake Manifold Details
Unique Design Allows Better Installation Of The Intake Manifold.
---tab Fitment---
• 2003-2007 Dodge Ram 5.9L Diesel (Only Manual Transmission)
• 2007.5-2018 Dodge Ram 6.7L Diesel (Manual & Automatic Transmissions)
---tab Shipping & Returns---
Fast Shipping Policy
Your order will be dispatched within 1-2 business days , and the package will arrive within your order's estimated date. Click for Shipping Policy
Easy Return Policy
Every order comes with a 14-day free return , which means you don't have to pay for a return slip. Click for Return Policy
Product conditions
Professional installation is recommended.
- Return eligibility
- Returnable within 30 days of confirmed delivery, in original condition, with an approved RMA
- Return window
- 30 days from confirmed delivery
- Restocking fee
- No restocking fee
- Return shipping
- Customer pays return shipping on voluntary returns
- Made to order
- No
- Backorder status
- Not backordered
- Cancellation
- Cancellation is only possible before the supplier order is submitted
- Warranty provider
- Warranty Information Pending
- Warranty duration
- Pending verification
- Compatibility
- Listed for specific vehicle configurations
- Legal use
- Street legal
- Processing estimate
- 3–10 business days supplier processing
- Shipping
- Shipping calculated at checkout
- Signature
- No signature requirement
- Supplier
- SPELAB
Product compatibility is based on the vehicle and product information provided. Review your selected truck, product options, measurements, modifications, and installation requirements before ordering.