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Mopar  |  SKU: 68038942AA

68038942AA | Genuine Mopar® Bypass Valve For 6.7L 2007-2012

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Description:
A bypass valve 68038942AA is a mechanical or electronic valve that allows fluid (air, exhaust gas, coolant, or oil) to reroute or “bypass” part of a system when certain conditions are met — like high pressure, temperature, or flow demand. In diesel engines and turbo systems, the bypass valve plays a key role in controlling flow and protecting components.

Part Number: 68038942AA 
Condition: New
Manufacture/Brand: Mopar

Engines: 6.7L I6 Cummins Turbo Diesel Engine
Transmissions: 6-Spd Automatic 68RFE Transmission. 6-Speed Manual G56 

Fits 68038942AA For 

Dodge Ram 2500 2007, 2008, 2009, 2010
Dodge Ram 3500 2007, 2008, 2009, 2010
RAM 2500 2011, 2012
RAM 3500 2011, 2012


Purpose of using 68038942AA:

  • Pressure Relief

    • Prevents excessive pressure buildup in a system (e.g., cooling, lubrication, or intake).

    • Protects components like radiators, hoses, and filters from damage.

  • Flow Regulation

    • Redirects fluid (coolant, oil, or exhaust gases) around a component when it’s not needed — for example, bypassing the EGR cooler when the engine is cold.

  • System Efficiency

    • Improves warm-up times, maintains consistent flow and temperature, and reduces strain on pumps and valves.


Signs of a Bad Bypass Valve 68038942AA:

Engine overheating or slow warm-up

Poor fuel economy
Check Engine Light (especially on emissions-related systems)
Reduced power or turbo lag
Coolant or exhaust leaks around valve housing

 

About the Manufacturer – Mopar:

Mopar is the official parts, service, and customer care brand for Chrysler, Dodge, Jeep, Ram, and Fiat vehicles. Originally short for “Motor Parts”, Mopar was established in 1937 and is now a global brand under Stellantis.

Mopar supplies genuine OEM parts, accessories, and performance upgrades, and it supports dealerships and technicians with tools, diagnostics, and factory-backed service. Known especially among enthusiasts for its muscle car heritage, Mopar is also a major presence in motorsports and custom vehicle culture.