Dorman 609-040 Automatic Transmission Kickdown Solenoid

Automatic Transmission Kickdown Solenoid

Dorman 609-040 is a direct replacement automatic transmission kickdown solenoid module for vehicles with a contaminated or deteriorated transmission control solenoid pack. It restores shifting functionality without requiring a dealership replacement, and it is built with a metal and plastic housing in black and silver with a white connector.

Compatible With Ram 1500, Ram 2500, Ram 3500, Dodge Durango, Jeep Grand Cherokee, and other listed applications, this remanufactured transmission kick-down module is engineered for OE-style fit and electrical connection. Part number 609-040 is also referenced for service replacement under the same application.

Key Features

• Direct replacement automatic transmission kickdown solenoid module
• Remanufactured transmission kick-down module construction
• Metal and plastic body with black and silver finish
• White round connector with blade terminals
• 21 terminal layout and 17 mounting holes
• Designed to restore transmission shifting functionality after solenoid pack contamination or deterioration
• Cross-reference part number: 5170877AA

Detailed Description

Dorman 609-040 is built for automatic transmission systems where the original transmission control solenoid pack has degraded or become contaminated. By replacing the affected kickdown module, it helps return proper shift control without replacing the entire assembly at the dealership. This part number 609-040 is a practical service solution for Ram and Dodge truck and SUV applications, including Ram 1500, Ram 2500, Ram 3500, Dodge Durango, and Jeep Grand Cherokee listings.

The module uses a round white connector, male blade terminals, and a black-and-silver metal/plastic housing for a direct-fit electrical and mounting interface. It is a remanufactured transmission kick-down module intended for vehicles that require a replacement solenoid pack component rather than a full transmission repair.

What It Helps Fix

• Harsh or inconsistent transmission shifting
• Delayed gear engagement caused by solenoid pack deterioration
• Shift control issues related to contaminated transmission electronics
• Transmission warning symptoms tied to a failing kickdown module
• Loss of normal shift functionality in supported Ram, Dodge, and Jeep applications

Installation Notes and Tips

Verify connector shape, terminal count, and mounting layout before installation. This module uses a round connector, blade terminals, and a 21-terminal configuration, so matching the original unit is important for proper fitment. Confirm vehicle application by year, make, and model before service on Ram 1500, Ram 2500, Ram 3500, Dodge Durango, Jeep Grand Cherokee, Dodge Dakota, Dodge Ram 1500, Dodge Ram 2500, Dodge Ram 3500, Jeep Commander, Chrysler Aspen, Mitsubishi Raider, Jeep Liberty, and Ram Dakota listings.

• Fits 2011-2018 Ram 2500, N/A
• Fits 2011-2018 Ram 3500, N/A
• Fits 2011-2017 Ram 1500, N/A
• Fits 2011-2013 Dodge Durango, N/A
• Fits 2004-2009 Dodge Durango, N/A
• Fits 1999-2013 Jeep Grand Cherokee, N/A
• Fits 2011 Ram Dakota, N/A
• Fits 2004-2010 Dodge Dakota, N/A
• Fits 2004-2010 Dodge Ram 1500, N/A
• Fits 2004-2010 Dodge Ram 2500, N/A
• Fits 2006-2010 Dodge Ram 3500, N/A
• Fits 2006-2010 Jeep Commander, N/A
• Fits 2007-2009 Chrysler Aspen, N/A
• Fits 2006-2007 Mitsubishi Raider, N/A
• Fits 2005-2006 Jeep Liberty, N/A
• Fits 2002-2003 Jeep Liberty, N/A

Quality Assurance

Dorman supplies direct replacement drivetrain and transmission components for service applications where OE-style restoration is needed. Part number 609-040 is remanufactured to support proper fitment and function in the listed vehicles.