{"product_id":"automotive-waterproof-wire-connector-socket-6189-0940-air-pump-generator-wiring-plug-replacement-6188-0657","title":"6189-0940 \/ 6188-0657 Automotive Waterproof Connector Socket — Air Pump \u0026 Generator Wiring Plug Replacement","description":"\u003ch2\u003e6189-0940 \/ 6188-0657 Automotive Waterproof Connector Socket — Air Pump \u0026amp; Generator Wiring\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003e6189-0940\u003c\/strong\u003e (housing) and \u003cstrong\u003e6188-0657\u003c\/strong\u003e (terminal) are Sumitomo-series waterproof automotive connector components for \u003cstrong\u003eair pump and generator (alternator) wiring harness applications\u003c\/strong\u003e on Toyota, Lexus, and affiliated OEM platforms. The sealed housing with individual wire seals provides reliable moisture protection for underhood circuits subject to water splash and condensation. These part numbers are widely referenced in Toyota\/Lexus service documentation for secondary air injection pump connectors, alternator sense connectors, and related high-current underhood circuits.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOEM Part Numbers\u003c\/td\u003e\n\u003ctd\u003e6189-0940 (housing) \/ 6188-0657 (terminal)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eSumitomo sealed series\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSealing\u003c\/td\u003e\n\u003ctd\u003eWaterproof (sealed housing + wire seals)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eHousing Material\u003c\/td\u003e\n\u003ctd\u003ePA66 glass-filled nylon\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTerminal Material\u003c\/td\u003e\n\u003ctd\u003eTin-plated copper alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to +125°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCompatible Platforms\u003c\/td\u003e\n\u003ctd\u003eToyota, Lexus, Daihatsu (Sumitomo harness)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCompliance\u003c\/td\u003e\n\u003ctd\u003eRoHS\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhy This Connector Fails — and How to Fix It Right\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeat cycling causes terminal oxidation\u003c\/strong\u003e — air pump and alternator circuits run hot; over time, terminal oxidation increases contact resistance, causing voltage drop and intermittent faults\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMoisture ingress through cracked seals\u003c\/strong\u003e — aged wire seals harden and crack, allowing moisture to wick into the connector and accelerate terminal corrosion\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReplace housing AND terminal together\u003c\/strong\u003e — a corroded terminal in a new housing (or vice versa) will fail again quickly; replace both components for a lasting repair\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOEM Sumitomo dimensions\u003c\/strong\u003e — manufactured to Sumitomo mating specifications; mates directly with the original counterpart connector on the vehicle harness\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePackage Options\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eOption\u003c\/th\u003e\n\u003cth\u003eContents\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eHousing only\u003c\/td\u003e\n\u003ctd\u003e1× 6189-0940 housing\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTerminal only\u003c\/td\u003e\n\u003ctd\u003e1× 6188-0657 terminal\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eHousing + terminal\u003c\/td\u003e\n\u003ctd\u003e1× housing + 1× terminal + wire seal\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMulti-pack\u003c\/td\u003e\n\u003ctd\u003eMultiple sets (see variant selector)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eTypical Applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eToyota \/ Lexus secondary air injection pump connector repair\u003c\/li\u003e\n  \u003cli\u003eAlternator and charging system wiring harness repair\u003c\/li\u003e\n  \u003cli\u003eGenerator sense wire connector replacement\u003c\/li\u003e\n  \u003cli\u003eUnderhood sealed connector repair on Sumitomo-harness vehicles\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eQ: Which Toyota\/Lexus models use 6189-0940?\u003c\/h3\u003e\n\u003cp\u003eThe 6189-0940 \/ 6188-0657 connector appears in Toyota and Lexus service documentation for models including \u003cstrong\u003eCamry, Corolla, RAV4, Prius, Lexus IS\/ES\/RX\/GS\u003c\/strong\u003e, and other Sumitomo-harness platforms. The exact application varies by model year and engine variant. Cross-reference the part number on your existing connector or consult the Toyota EPC (Electronic Parts Catalog) to confirm fitment for your specific vehicle.\u003c\/p\u003e\n\n\u003ch3\u003eQ: How do I diagnose a faulty air pump connector?\u003c\/h3\u003e\n\u003cp\u003eCommon symptoms of a failed air pump connector include: P0410 (Secondary Air Injection System Malfunction) DTC, intermittent air pump operation, or visible corrosion\/melting at the connector. Inspect the connector for green\/white corrosion on terminals, cracked housing, or melted plastic from heat. Measure terminal resistance — a good connection should show less than 0.1Ω; anything above 0.5Ω indicates a failing terminal.\u003c\/p\u003e\n\n\u003ch3\u003eQ: Do I need to replace the wire seals when replacing the connector?\u003c\/h3\u003e\n\u003cp\u003eYes — always install \u003cstrong\u003enew wire seals\u003c\/strong\u003e when replacing a waterproof connector. Reusing old seals risks moisture ingress that will corrode the new terminals. New wire seals are included with the housing + terminal package option.\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"15 cm wire-YB","offer_id":47363859251435,"sku":"14:350850#15 cm wire-YB","price":14.04,"currency_code":"USD","in_stock":true},{"title":"15 cm wire","offer_id":47363859284203,"sku":"14:29#15 cm wire","price":11.58,"currency_code":"USD","in_stock":true},{"title":"15 cm wire-A","offer_id":47363859316971,"sku":"14:175#15 cm wire-A","price":12.84,"currency_code":"USD","in_stock":true},{"title":"Male Set","offer_id":47363859349739,"sku":"14:200004889#Male Set","price":10.32,"currency_code":"USD","in_stock":true},{"title":"A Female Set","offer_id":47363859382507,"sku":"14:200003699#A Female Set","price":11.7,"currency_code":"USD","in_stock":true},{"title":"B Female Set","offer_id":47363859415275,"sku":"14:200004891#B Female Set","price":11.1,"currency_code":"USD","in_stock":true},{"title":"Male Female Set","offer_id":47363859448043,"sku":"14:200004890#Male Female Set","price":12.78,"currency_code":"USD","in_stock":true},{"title":"15 cm wire-B","offer_id":47363859480811,"sku":"14:365458#15 cm wire-B","price":12.84,"currency_code":"USD","in_stock":true},{"title":"YB Female Set","offer_id":47363859513579,"sku":"14:200002130#YB Female Set","price":12.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/automotive-waterproof-wire-connector-6189-0940.webp?v=1769060731","url":"https:\/\/keszoox.com\/products\/automotive-waterproof-wire-connector-socket-6189-0940-air-pump-generator-wiring-plug-replacement-6188-0657","provider":"Keszoox","version":"1.0","type":"link"}