{"product_id":"cat-c9-3b-525-0290-relief-valve-assembly","title":"CAT 525-0290 Caterpillar C9.3B Relief Valve Assembly | Engine Fuel System Parts","description":"\u003ch2\u003eCAT 525-0290 Caterpillar C9.3B Relief Valve Assembly\u003c\/h2\u003e\u003cp\u003eOEM-quality relief valve assembly for Caterpillar C9.3B diesel engines. Regulates and limits pressure within the fuel system, lubrication circuit, or hydraulic circuit by opening at a preset pressure threshold to divert excess fluid and protect downstream components from overpressure damage. Manufactured to OEM specifications for correct opening pressure, flow capacity, seat configuration, and thread size, ensuring reliable pressure regulation and long service life under continuous heavy-duty operating conditions. Essential for fuel system, lubrication system, or hydraulic system overhaul and relief valve replacement. 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 525-0290\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 Relief Valve Assembly (VALVE AS-REL)\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 8481.20\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Industrial \/ Construction \/ Power Generation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible Engine Models\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCaterpillar C9.3B\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003ePlease confirm compatibility with your engine serial number before ordering.\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCross Reference Numbers\u003c\/h3\u003e\u003cp\u003e525-0290 | 5250290 | CAT5250290\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":57196913557670,"sku":"CAT-525-0290","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/6655\/9142\/files\/conjunto-valvula-de-alivio-motor-cat-c9-3b-525-0290.webp?v=1787826639","url":"https:\/\/motorpartshub.online\/products\/cat-c9-3b-525-0290-relief-valve-assembly","provider":"Motor Parts Hub","version":"1.0","type":"link"}