{"product_id":"nissan-altima-2002-2006-2-5l-engine-qr25de","title":"Nissan Altima 2002–2006 2.5L Engine | QR25","description":"\u003cp data-end=\"305\" data-start=\"50\"\u003eStrong and torque-focused \u003cstrong data-end=\"98\" data-start=\"76\"\u003e2.5L DOHC inline-4\u003c\/strong\u003e engine imported from Japan 🇯🇵. Compression-tested and ready for installation — well known for its low-end torque and everyday drivability, making it a dependable replacement for Nissan mid-size platforms.\u003c\/p\u003e\n\u003cp data-end=\"572\" data-start=\"307\"\u003e\u003cstrong data-end=\"323\" data-start=\"307\"\u003eEngine code:\u003c\/strong\u003e QR25\u003cbr data-end=\"333\" data-start=\"330\"\u003e\u003cstrong data-end=\"351\" data-start=\"333\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"572\" data-start=\"307\"\u003e\u003cstrong data-end=\"351\" data-start=\"333\"\u003eConfiguration:\u003c\/strong\u003e Inline-4 DOHC 16-valve\u003cbr data-end=\"377\" data-start=\"374\"\u003e\u003cstrong data-end=\"394\" data-start=\"377\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"572\" data-start=\"307\"\u003e\u003cstrong data-end=\"394\" data-start=\"377\"\u003eDisplacement:\u003c\/strong\u003e 2488 cc\u003cbr data-end=\"405\" data-start=\"402\"\u003e\u003cstrong data-is-only-node=\"\" data-end=\"417\" data-start=\"405\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"572\" data-start=\"307\"\u003e\u003cstrong data-is-only-node=\"\" data-end=\"417\" data-start=\"405\"\u003eMileage:\u003c\/strong\u003e 45,000 – 65,000 miles (verified low-mileage JDM import)\u003cbr data-end=\"476\" data-start=\"473\"\u003e\u003cstrong data-end=\"498\" data-start=\"476\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"572\" data-start=\"307\"\u003e\u003cstrong data-end=\"498\" data-start=\"476\"\u003eCompression ratio:\u003c\/strong\u003e ~9.6 : 1 (factory spec; verified consistent compression across cylinders)\u003c\/p\u003e\n\u003cp data-end=\"585\" data-start=\"574\"\u003e\u003cstrong data-end=\"583\" data-start=\"574\"\u003eFits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"744\" data-start=\"586\"\u003e\n\u003cli data-end=\"622\" data-start=\"586\"\u003e\n\u003cp data-end=\"622\" data-start=\"588\"\u003eNissan Altima 2.5L (2002 – 2006)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"664\" data-start=\"623\"\u003e\n\u003cp data-end=\"664\" data-start=\"625\"\u003eNissan Sentra SE-R 2.5L (2002 – 2006)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"713\" data-start=\"665\"\u003e\n\u003cp data-end=\"713\" data-start=\"667\"\u003eNissan X-Trail 2.5L \u003cem data-end=\"711\" data-start=\"687\"\u003e(JDM \/ select markets)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"744\" data-start=\"714\"\u003e\n\u003cp data-end=\"744\" data-start=\"716\"\u003eNissan Serena 2.5L \u003cem data-end=\"742\" data-start=\"735\"\u003e(JDM)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"912\" data-start=\"746\"\u003eSmooth daily performance with strong mid-range torque — the \u003cstrong data-end=\"816\" data-start=\"806\"\u003eQR25\u003c\/strong\u003e is widely used for stock replacements and long-term reliability in early-2000s Nissan vehicles.\u003c\/p\u003e\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"1201\" data-start=\"914\"\u003e\u003cem data-is-last-node=\"\" data-end=\"1201\" data-start=\"914\"\u003eFitment list is provided for reference only. Compatibility may vary by market, transmission (manual\/CVT), ECU, and emissions configuration. Please confirm fitment with a certified mechanic before purchasing to verify your exact engine model, or contact us and we’ll be happy to assist.\u003c\/em\u003e\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":42786064072767,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/8809\/0431\/files\/Screenshot2025-12-19at2.20.28PM.png?v=1766172033","url":"https:\/\/jdmcali.com\/products\/nissan-altima-2002-2006-2-5l-engine-qr25de","provider":"JDM Calimotors Sports","version":"1.0","type":"link"}