{"product_id":"performance-water-pump-kit-for-bmw-5-series-1999-2005-2-5l-2-8l-3-0l","title":"Performance Water Pump Kit for BMW 5 Series (1999-2005) 2.5L 2.8L 3.0L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHeavy-Duty Water Pump and Thermostat Kit for 1999-2005 BMW 5 Series (E39 \/ E60)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Performance Water Pump Kit replaces failure-prone factory cooling components on the 1999-2005 BMW 5 Series to stabilize engine operating temperatures and prevent catastrophic overheating.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock BMW 5 Series Cooling System Vulnerability\u003c\/h3\u003e\n\u003cp\u003eThe factory cooling system on the \u003cstrong\u003eE39\u003c\/strong\u003e and early \u003cstrong\u003eE60\u003c\/strong\u003e chassis is notorious for premature failure. The original water pump features a composite or plastic impeller that becomes brittle through continuous thermal cycling, eventually shearing off the drive shaft or disintegrating inside the block. Compounding this risk, the OEM composite thermostat housing warps under sustained thermal stress, inducing micro-cracks along the sealing flange. When coolant flow stops or system pressure drops, the all-aluminum \u003cstrong\u003eM52TU\u003c\/strong\u003e and \u003cstrong\u003eM54\u003c\/strong\u003e cylinder heads warp rapidly, resulting in blown head gaskets and severe internal engine damage.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis refresh package pairs a heavy-duty mechanical, belt-driven water pump assembly with a complete direct-fit thermostat housing. The water pump utilizes a reinforced impeller mounted to a hardened steel bearing and spindle assembly to eliminate blade detachment under high-RPM operation. The included thermostat assembly features a calibrated internal wax motor and factory-spec integrated electrical connector to regulate continuous coolant circulation at OEM-specified opening temperatures. Replacing both components simultaneously eliminates cavitation, secures system hydraulic integrity, and prevents heat soak across all inline-six driving conditions.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 Mechanical Water Pump Assembly\u003c\/li\u003e\n  \u003cli\u003e1 Thermostat Housing Assembly with Integrated Thermostat\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;\"\u003e1999-2005 BMW 5 Series\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;\"\u003eM52TU, M54 (2.5L, 2.8L, 3.0L) \/ E39, E60\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;\"\u003e184–225 hp \/ 175–214 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;\"\u003e1152090, AW9261, 41057, 1430825, 11M41017KF\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\u003e1999-2000 BMW 528i (2.8L Gas Naturally Aspirated)\u003c\/li\u003e\n  \u003cli\u003e2001-2005 BMW 525i (2.5L Gas Naturally Aspirated)\u003c\/li\u003e\n  \u003cli\u003e2001-2005 BMW 530i (3.0L Gas Naturally Aspirated)\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 E39 and E60 5 Series?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 1999-2005 BMW 5 Series equipped with the \u003cstrong\u003eM52TU\u003c\/strong\u003e and \u003cstrong\u003eM54\u003c\/strong\u003e inline-six engines; it does not fit V8 or diesel models.\u003c\/p\u003e\n\n\u003ch4\u003eDo I need to bleed the cooling system after installation?\u003c\/h4\u003e\n\u003cp\u003eYes, a complete coolant flush and rigorous air-bleed procedure is required to purge air pockets and avoid hot spots in the aluminum cylinder head.\u003c\/p\u003e\n\n\u003ch3\u003eThe BMW Precision Caliber\u003c\/h3\u003e\n\u003cp\u003eEngineered for exacting European tolerances, this cooling refresh kit maintains OEM flow rates, zero fault codes, and reliable thermal regulation for demanding highway and track operation.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67923275219192,"sku":"DS-EE9SCR1JN","price":81.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/performance-water-pump-kit-for-bmw-5-series-1999-2005-2-5l-2-8l-3-0l-1.jpg?v=1793557514","url":"https:\/\/performancechiptuning.com\/fr\/products\/performance-water-pump-kit-for-bmw-5-series-1999-2005-2-5l-2-8l-3-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}