The Alltrux ATX22521 Fuel & Oil Pressure Sensor replaces OEM 21634021 and is engineered for Volvo and Mack heavy-duty trucks equipped with D12 and D13 engines where accurate pressure monitoring is essential for engine protection and performance. This sensor provides real-time fuel and oil pressure data to the engine control system, helping ensure proper lubrication and fuel delivery under all operating conditions.

Fuel and oil pressure sensors play a vital role in safeguarding engine components by allowing the ECM to monitor critical pressure levels and respond to abnormal conditions. Inaccurate or failing sensors can lead to incorrect pressure readings, warning light activation, reduced engine performance, or potential engine damage if pressure issues go undetected.

Built for durability in demanding commercial truck environments, this replacement pressure sensor delivers reliable signal accuracy and consistent performance under high temperature and vibration conditions common in heavy-duty diesel engines. Always verify engine model compatibility and electrical connector configuration prior to installation to ensure proper fitment and dependable operation.

Key Features

Direct replacement for OEM 21634021
Alltrux Part Number: ATX22521
Combined fuel and oil pressure monitoring sensor
Provides accurate pressure data for engine protection
Supports proper lubrication and fuel delivery monitoring
Designed for Volvo and Mack D12 and D13 heavy-duty diesel engines

Technical Specifications

Brand: Alltrux
Part Number: ATX22521
OEM Cross Reference: 21634021
Product Type: Fuel & Oil Pressure Sensor
System: Engine Monitoring / Pressure Sensor
Condition: New Aftermarket
Application: Volvo and Mack Heavy-Duty Diesel Engines (D12, D13)

Cross References

OEM: 21634021
ALLTRUX: ATX22521