{"product_id":"fuel-oil-pressure-sensor-21634021-alltrux-atx22521","title":"Fuel \u0026 Oil Pressure Sensor 21634021 – Volvo \u0026 Mack D12\/D13 – Alltrux ATX22521","description":"\u003cp data-start=\"1253\" data-end=\"1670\"\u003eThe Alltrux ATX22521 Fuel \u0026amp; 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.\u003c\/p\u003e\n\u003cp data-start=\"1672\" data-end=\"2031\"\u003eFuel 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.\u003c\/p\u003e\n\u003cp data-start=\"2033\" data-end=\"2429\"\u003eBuilt 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.\u003c\/p\u003e\n\u003ch2 data-start=\"2431\" data-end=\"2446\"\u003eKey Features\u003c\/h2\u003e\n\u003cp data-start=\"2447\" data-end=\"2750\"\u003eDirect replacement for OEM 21634021\u003cbr data-start=\"2482\" data-end=\"2485\"\u003eAlltrux Part Number: ATX22521\u003cbr data-start=\"2514\" data-end=\"2517\"\u003eCombined fuel and oil pressure monitoring sensor\u003cbr data-start=\"2565\" data-end=\"2568\"\u003eProvides accurate pressure data for engine protection\u003cbr data-start=\"2621\" data-end=\"2624\"\u003eSupports proper lubrication and fuel delivery monitoring\u003cbr data-start=\"2680\" data-end=\"2683\"\u003eDesigned for Volvo and Mack D12 and D13 heavy-duty diesel engines\u003c\/p\u003e\n\u003ch3 data-start=\"2752\" data-end=\"2780\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp data-start=\"2781\" data-end=\"3038\"\u003eBrand: Alltrux\u003cbr data-start=\"2795\" data-end=\"2798\"\u003ePart Number: ATX22521\u003cbr data-start=\"2819\" data-end=\"2822\"\u003eOEM Cross Reference: 21634021\u003cbr data-start=\"2851\" data-end=\"2854\"\u003eProduct Type: Fuel \u0026amp; Oil Pressure Sensor\u003cbr data-start=\"2894\" data-end=\"2897\"\u003eSystem: Engine Monitoring \/ Pressure Sensor\u003cbr data-start=\"2940\" data-end=\"2943\"\u003eCondition: New Aftermarket\u003cbr data-start=\"2969\" data-end=\"2972\"\u003eApplication: Volvo and Mack Heavy-Duty Diesel Engines (D12, D13)\u003c\/p\u003e\n\u003ch4 data-start=\"3040\" data-end=\"3061\"\u003eCross References\u003c\/h4\u003e\n\u003cp data-start=\"3062\" data-end=\"3095\"\u003eOEM: 21634021\u003cbr data-start=\"3075\" data-end=\"3078\"\u003eALLTRUX: ATX22521\u003c\/p\u003e","brand":"JX Peterbilt","offers":[{"title":"Default Title","offer_id":44150917726388,"sku":"ATX22521","price":78.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/7425\/5540\/files\/Screenshot2026-02-22105111.png?v=1771775576","url":"https:\/\/parts.rodoc.com\/products\/fuel-oil-pressure-sensor-21634021-alltrux-atx22521","provider":"Rodoc Leasing Sales \u0026 Service ","version":"1.0","type":"link"}