DPF Differential Pressure Sensor - 35 kPa Volvo D13 FH FM - 21403962 23488881 577.96881OE

Keep the aftertreatment reading straight with this OE DPF Differential Pressure Sensor distributed by FleetPro Parts & Tires. Manufactured by Sensata and built to OE signal specification, it measures the pressure drop across the diesel particulate filter on the Volvo D13 engine so the engine control module knows how loaded that filter really is. When this sensor drifts or dies you get dash warnings, stored fault codes and derates — often on a truck whose filter is in perfectly good shape. We stock these heavily right here in our Hanover Park, Illinois warehouse to ensure lightning-fast shipping for fleets, diesel repair shops, and owner-operators nationwide.

Honest Regens: The OE Differential Pressure Sensor Advantage

The differential pressure sensor is the input the engine control module leans on to decide whether the particulate filter needs a regeneration. This Sensata unit carries a 35 kPa rating and is manufactured to OE signal specification, so the module sees the signal it expects from the factory part rather than a close-enough approximation from a generic substitute.

Getting that one input right is worth real money. A sensor reading high commands regens the filter never needed, which burns fuel and puts needless heat through the aftertreatment; a sensor reading low lets soot pack the filter until the only way out is a forced regen or a filter cleaning. Either way the fix is the same sensor. Verify the fault with diagnostics before you replace it, though — plugged or cracked pressure lines running to the filter will set the same codes, and a new sensor will not fix a line.

At FleetPro Parts & Tires, we stock the OE-grade part instead of the cheapest one on the shelf. Every unit is new, covered by the 1-Year FleetPro Warranty, and serves as a direct replacement for the highly searched industry numbers Volvo 21403962 and Volvo 23488881.

Vehicle Fitment & Compatibility

This OE-grade differential pressure sensor is intended for the following commercial applications:

• Engine: Volvo D13
• Make/Model: Volvo FH, Volvo FM
• System: Diesel Particulate Filter (DPF) differential pressure
• Component Group: Engine Management & Engine Sensors

Direct Replacement & Cross-Reference Numbers:

This Sensata differential pressure sensor serves as a direct replacement for the following part numbers:

• Volvo Interchange: 21403962, 23488881
• Automann Distributor #: 577.96881OE

Technical Specifications

• Component Type: DPF Differential Pressure Sensor
• Rating: 35 kPa
• Engine: Volvo D13
• Fits: Volvo FH, FM
• Condition: New
• Warranty: 1-Year FleetPro Warranty
• Weight: 0.07 lbs
• Package Dims: 3.25 x 1.75 x 1 in
• Product Level: OEM
• Brand: Sensata (Distributed by FleetPro Parts & Tires)