{"product_id":"oil-pump-for-nissan-altima-2002-2006-3-5l","title":"Oil Pump for Nissan Altima (2002-2006) 3.5L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003ePrecision Replacement Oil Pump for 2002-2006 Nissan Altima (L31)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The replacement oil pump circulates pressurized motor oil throughout the 2002-2006 Altima's \u003cstrong\u003eVQ35DE\u003c\/strong\u003e block to eliminate hydrodynamic friction, sustain journal bearing film strength, and prevent engine oil starvation under load.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Nissan Altima Oil Pressure Drop \u0026amp; Rotor Wear\u003c\/h3\u003e\n\u003cp\u003eFactory \u003cstrong\u003eL31\u003c\/strong\u003e platform VQ35DE oil pumps are prone to internal housing scoring, relief valve sticking, and gear cavity wear after prolonged thermal cycles. As clearances open up, the pump loses volumetric efficiency at warm idle, causing line pressure drops that starve variable timing sprockets, hydraulic tensioners, and rod bearings—eventually resulting in timing slap and fatal bottom-end rod knock.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered to exact OEM tolerances, this high-pressure replacement pump features precision-ground sintered metal trochoidal rotors encased in a rigid cast aluminum housing. This design stabilizes oil delivery across the entire RPM range, resisting cavitation and bypass blow-by. Shipped complete with a replacement pre-formed gasket and high-temp elastomer O-ring to prevent front timing cover leaks. Directly interchanges with factory part numbers \u003cstrong\u003eEA-266-41964\u003c\/strong\u003e, \u003cstrong\u003eOP3035\u003c\/strong\u003e, and \u003cstrong\u003e13510-31U10\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 Oil Pump Assembly\u003c\/li\u003e\n  \u003cli\u003e1 O-Ring\u003c\/li\u003e\n  \u003cli\u003e1 Gasket\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\n  \u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; min-width: 300px;\"\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e2002-2006 Nissan Altima\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e\n\u003cstrong\u003eVQ35DE\u003c\/strong\u003e \/ \u003cstrong\u003eL31\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e240-250 hp \/ 246-249 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eEA-266-41964, OP3035, 13510-31U10\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2002-2006 Nissan Altima 3.5L V6 (VQ35DE)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the L31 Altima?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2002-2006 Nissan Altima equipped with the \u003cstrong\u003eVQ35DE\u003c\/strong\u003e 3.5L V6 engine. \u003cstrong\u003eDoes not fit 4-cylinder 2.5L QR25DE models.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eDo I need to prime this oil pump before start-up?\u003c\/h4\u003e\n\u003cp\u003eYes, pre-lube the pump cavity with clean engine oil prior to assembly and verify mechanical oil pressure immediately after initial startup.\u003c\/p\u003e\n\n\u003ch3\u003eThe Nissan V6 Standard\u003c\/h3\u003e\n\u003cp\u003ePreserve the high-revving power and valvetrain response of your VQ-series V6 with reliable oil flow engineered to handle hard driving and daily demands alike.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":68058923106552,"sku":"DS-EYMMGS0U4","price":83.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/oil-pump-for-nissan-altima-2002-2006-3-5l-1.jpg?v=1794364733","url":"https:\/\/performancechiptuning.com\/fr\/products\/oil-pump-for-nissan-altima-2002-2006-3-5l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}