Description
Description
The Volvo D13 Crankcase & Oil Pressure Sensor (OEM 21634017 / 21746206) monitors crankcase pressure and engine oil pressure on D13 engines and reports readings to the ECM. A failed sensor triggers crankcase pressure fault codes, oil pressure warnings, and can put the engine into derate mode — even when actual oil pressure is normal. This sensor is a common cause of nuisance fault codes on high-mileage D13 engines.
Fits: Volvo VN, VNL, VNM | Mack Pinnacle, Anthem | Engines: Volvo D13, Mack MP8
OEM Part Number: 21634017 | Also: 21746206
Not sure if this fits your truck? Provide your VIN and we'll verify compatibility before you order.
What's included: Complete ZTech assembly — ready for installation.
Why ZTech: ZTech parts are engineered to OEM specifications and tested for direct fit and performance.
Installation note: Screw-in replacement on the engine block. Professional installation recommended.
📍 Local to Southern California? Same-day in-store pickup at our Irvine, CA location (ready in 4 hours). Local delivery within 50 miles on orders $1,000+.
↩️ Returns: 100% refund on unused items returned in original undamaged packaging within 30 days.
Buying for a fleet? Contact us for volume pricing.
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