The Alliant Power AP63605 is a new engine coolant temperature sensor for 1999–2015 Dodge/Ram 5.9L Cummins applications. Alliant’s Engine Coolant Temperature Sensor monitors temperature conditions and sends the signal used by the engine management system.

Features & Benefits

• New Alliant Power Engine Coolant Temperature Sensor (Alliant P/N AP63605)
• Fit, form, and function tested to meet or exceed original-equipment standards (per Alliant Power)
• Direct replacement for 3096153 / 3865346 / 4088750
• Backed by Alliant Power’s 24-month, unlimited-mileage warranty

Application

• Dodge Ram 2500 / Ram 3500 (1999–2010)
• Ram 2500 / 3500 / 4500 / 5500 (2011–2015)
• Dodge Ram 4000 (2005–2010)
• Dodge Ram 4500 / Ram 5500 (2008–2010)
• Ram 4000 (2011–2013)
• Alliant Power lists additional vehicle applications for this part number

Always verify fitment against your VIN, engine, and OE part number before ordering.

Cross-Reference / Replaces

• Cummins: 3096153, 3865346, 4088750, 4088751, 4954905
• Alliant Power: AP63605

Warranty: Alliant Power’s standard warranty: 24 months with unlimited miles/hours on installed parts (Alliant Power warranty policy, rev. Aug 2025).