FQRANBO Thermostatic Transmission Bypass Valve for 68RFE — Black 2013–2018 Ram 6.7L, 6061 Billet

FQRANBO's thermostatic transmission cooler bypass for 68RFE-equipped 2013–2018 Dodge Ram 2500/3500 6.7L Cummins improves transmission temperature management by routing fluid through or around the radiator based on operating temperature.

Designed as a direct-fit upgrade for Dodge Ram 2500 and 3500 trucks with the 68RFE transmission and 6.7L Cummins diesel (model years 2013–2018), this billet aluminum bypass valve replaces the restrictive stock orifice to help the transmission reach and maintain optimal heat-exchange performance. Built from 6061 billet aluminum and finished in black, the assembly resists corrosion and impact while offering a durable solution for tow-heavy, off-road, and long-haul driving where consistent transmission temperature control matters.

How does this bypass valve affect transmission cooling during towing and heavy loads?

The valve reduces orifice restriction that can limit cooler flow, allowing the transmission to better regulate heat transfer when under sustained load. By directing fluid based on temperature, it promotes more efficient cooling at the radiator or lets fluid bypass when warmer operation is preferred.

• Replaces factory orifice in 68RFE systems for improved flow dynamics
• Opens and routes fluid to the cooler when temperature rises
• Bypasses the cooler at lower temperatures to speed warm-up and stable operation
• Helps maintain consistent heat-exchange behavior during heavy towing

What materials and build quality can I expect from this FQRANBO upgrade?

The valve body is machined from 6061 billet aluminum for strength, impact resistance, and corrosion protection. The precision construction is intended to withstand vibration and thermal cycling common in truck transmissions.

• Billet 6061 aluminum body for durability and lightweight strength
• Black finish for added corrosion protection and a clean appearance
• Precision-fit design to match 68RFE transmission cooler lines
• Engineered to resist bending and deformation under road stresses

Is installation straightforward, and what fitment should I confirm before buying?

Installation is typically a bolt-in replacement for the stock thermostatic bypass on 2013–2018 Dodge Ram 2500/3500 trucks equipped with the 68RFE transmission and 6.7L Cummins diesel. Verify your truck’s model year and transmission code to ensure compatibility before purchasing.

• Direct-replacement design for 68RFE 6.7L Cummins Ram trucks (2013–2018)
• Basic mechanical skills and common hand tools required for swap
• Check transmission model and cooler line routing for fit confirmation
• Professional installation recommended if unsure about cooler plumbing

What warranty and customer support does FQRANBO provide?

The product comes with a one-year warranty backed by FQRANBO's support team. If you encounter issues, the manufacturer requests contact and promises a timely response to resolve defects or fitment concerns.

• One-year limited warranty for manufacturing defects
• Customer support with a 24-hour response window for assistance
• Replacement or guidance available for valid warranty claims

Who is this for: This thermostatic bypass valve is aimed at owners of 2013–2018 Dodge Ram 2500 and 3500 trucks with the 68RFE transmission and 6.7L Cummins diesel who tow frequently, drive in demanding conditions, or want a more robust, long-lasting bypass than the factory orifice provides. It's a practical performance-minded upgrade for technicians, fleet operators, and enthusiasts seeking improved thermal management without extensive modifications.