The Alliant Power AP63453 is a new crankshaft position CKP sensor for 1998–2003 Dodge Ram 5.9L 24V Cummins applications. Alliant’s Engine Crankshaft Position Sensor monitors crankshaft position to provide timing feedback for engine management.

Features & Benefits

• New Alliant Power Crankshaft Position CKP Sensor (Alliant P/N AP63453)
• Fit, form, and function tested to meet or exceed original-equipment standards (per Alliant Power)
• Direct replacement for 3941966 / 3943409 / 4921601
• Backed by Alliant Power’s 24-month, unlimited-mileage warranty

Application

• Dodge Ram 2500 / Ram 3500 (1998–2003)

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

Cross-Reference / Replaces

• Cummins: 3941966, 3943409, 4921601, 5491995
• Mopar: 5011855AA, 5015184AA, 5015488AA, 5015488AB
• Alliant Power: AP63453

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