{"product_id":"cat-3516b-9x-9971-ecu-engine-control-unit","title":"9X-9971 Caterpillar 3516B ECU Engine Control Unit | Electronic Control Parts","description":"\u003ch2\u003eCAT 9X-9971 Caterpillar 3516B ECU Engine Control Unit\u003c\/h2\u003e\u003cp\u003eOEM-quality Engine Control Unit (ECU) for Caterpillar 3516B diesel engines. The ECU is the central electronic management system controlling fuel injection timing and quantity, turbocharger boost, engine protection functions, and diagnostic fault logging. Programmed to OEM specifications for the 3516B engine family, ensuring correct fuel maps, timing curves, and communication protocols with the engine harness and sensors. Essential for ECU replacement and engine electronic system repair. Ideal for global parts retailers, repair service providers, and heavy-duty diesel engine workshops.\u003c\/p\u003e\u003ch3\u003ePart Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 9X-9971 (variants: -04, -05)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Caterpillar (CAT)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent:\u003c\/strong\u003e ECU — Engine Control Unit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e New \/ OEM Replacement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e China\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHS Code:\u003c\/strong\u003e 8543.70\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Industrial \/ Marine \/ Power Generation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible Engine Models\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCaterpillar 3516B\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003ePlease confirm compatibility with your engine serial number and software version before ordering.\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCross Reference Numbers\u003c\/h3\u003e\u003cp\u003e9X-9971 | 9X9971 | CAT9X9971 | 9X-9971-04 | 9X-9971-05\u003c\/p\u003e\u003ch3\u003eWhy Choose Us?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGlobal B2B wholesale supply\u003c\/li\u003e\n\u003cli\u003eBulk pricing available — contact us for a quote\u003c\/li\u003e\n\u003cli\u003eFast international shipping\u003c\/li\u003e\n\u003cli\u003eOEM \u0026amp; aftermarket options\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eNeed bulk pricing or a custom quote?\u003c\/strong\u003e \u003ca href=\"\/pages\/contact\"\u003eSubmit an RFQ →\u003c\/a\u003e\u003c\/p\u003e","brand":"Caterpillar","offers":[{"title":"Default Title","offer_id":56894982848678,"sku":"CAT-9X-9971","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/6655\/9142\/files\/arnes-de-inyectores-caterpillar-9x-9971-04-05-motor-diesel.webp?v=1785653990","url":"https:\/\/motorpartshub.online\/products\/cat-3516b-9x-9971-ecu-engine-control-unit","provider":"Motor Parts Hub","version":"1.0","type":"link"}