{"product_id":"performance-water-pump-kit-for-audi-s4-2018-2025-3-0l","title":"Performance Water Pump Kit for Audi S4 (2018-2025) 3.0L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHeavy-Duty Performance Water Pump Kit for 2018-2025 Audi S4 (B9\/B9.5)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Performance Water Pump Kit replaces the leak-prone factory coolant circulation assembly on the 2018-2025 Audi S4 to restore precise thermal regulation and prevent catastrophic engine overheating.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Audi S4 Cooling System Failure\u003c\/h3\u003e\n\u003cp\u003eThe factory \u003cstrong\u003eEA839\u003c\/strong\u003e 3.0T engine utilizes a complex vacuum-actuated thermal management sleeve surrounding the mechanical water pump. Under heavy thermal cycling and boost pressure, OEM plastic housings warp, seals degrade, and the internal actuating diaphragm ruptures. Once breached, pressurized coolant migrates directly into the engine vacuum system, saturating the factory solenoids and thermal pneumatic valves. This common failure triggers cooling faults, erratic engine temps, and secondary vacuum-related DTCs across the \u003cstrong\u003eB9\u003c\/strong\u003e and \u003cstrong\u003eB9.5\u003c\/strong\u003e platform.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis coordinated service solution addresses every structural failure point of OEM part \u003cstrong\u003e06M121013D\u003c\/strong\u003e and its revisions. Built with an all-aluminum pump housing and rigid aluminum impeller, it eliminates high-rpm cavitation and housing flex under extreme heat soak. The kit completely refreshes the variable cooling circuit by providing an updated mechanical water pump, matched thermostat, coolant crossover pipe, replacement pulley, fresh O-ring seals, and new electronic solenoid and thermal pneumatic control valves to permanently halt vacuum line contamination.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 Engine Water Pump Assembly with Pulley\u003c\/li\u003e\n  \u003cli\u003e1 Thermostat Assembly\u003c\/li\u003e\n  \u003cli\u003e1 Water Pipe\u003c\/li\u003e\n  \u003cli\u003e1 Pulley\u003c\/li\u003e\n  \u003cli\u003e2 Solenoid Valves\u003c\/li\u003e\n  \u003cli\u003e1 Thermal Pneumatic Valve\u003c\/li\u003e\n  \u003cli\u003eO-Ring and Fixing Bolt Hardware Set\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;\"\u003e2018-2025 Audi S4\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\u003eEA839\u003c\/strong\u003e 3.0L Turbo V6 \/ \u003cstrong\u003eB9, B9.5\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;\"\u003e349 hp \/ 369 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;\"\u003e9A712101303, 9A712101304, 06M121013D, 06M121013G, 06M121013C, 06M121031D, 06M121031G, N91121903, 06M 121 013G, 9A712111511, PAB121115B, PAC121115, 06M121115, 06M121678H, 06M121678F, 06M121678G, 9A712167800, PAB121678A, 06M121115J, 06M121115G, 06M121115K, 06M121115H, 9A712111510, 06M115401K, 06M115401L, 06M115401F, 06M115401E, 9A711540100, 9A711540105, 9A711540110, PAB115401, PAC115401, 06M117015M, 9A711701530, 06M121083J, 06M121083H, 9A712108300, 9A71210830\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\u003e2018-2025 Audi S4 Sedan (3.0L Gas Turbo V6 CWGD)\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 B9\/B9.5 S4?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2018-2025 Audi S4 equipped with the \u003cstrong\u003eEA839\u003c\/strong\u003e 3.0L single-turbocharged engine. \u003cstrong\u003eThis kit does NOT fit earlier supercharged 3.0T engines (B8\/B8.5 chassis) or naturally aspirated variants.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eIs this an auxiliary electric pump or a mechanical pump?\u003c\/h4\u003e\n\u003cp\u003eThis is the primary mechanical belt-driven engine water pump; it does not replace the secondary electric auxiliary coolant run-on pumps.\u003c\/p\u003e\n\n\u003ch3\u003eThe Audi Precision Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to meet rigorous European performance tolerances, this kit maintains factory thermal calibration without triggering check engine lights or vacuum DTCs, ensuring leak-free performance under prolonged high-load conditions.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":68034878832888,"sku":"DS-EKGU9X79R","price":519.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/performance-water-pump-kit-for-audi-s4-2018-2025-3-0l-1.jpg?v=1794177625","url":"https:\/\/performancechiptuning.com\/products\/performance-water-pump-kit-for-audi-s4-2018-2025-3-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}