{"product_id":"jp-group-coolant-flange-vw-golf-jetta-new-beetle-tdi-alh-038121132c-jp-3160-0","title":"JP Group Coolant Flange, Rear of Cylinder Head | VW Golf, Jetta \u0026 New Beetle 1.9 TDI ALH 1998–2003 | OE 038 121 132 C (JP-3160-0)","description":"\u003ch2\u003eJP Group Coolant Flange, Rear of Cylinder Head — VW 1.9 TDI ALH, OE 038 121 132 C (JP-3160-0)\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eShort answer:\u003c\/strong\u003e JP Group JP-3160-0 is the plastic coolant flange (water outlet) that bolts to the transmission-side end of the cylinder head on the VW 1.9 TDI ALH engine. It replaces OE 038 121 132 C (JP ref 1114502700) and fits the 1999–2003 Golf and Jetta Mk4 TDI and the 1998–2003 New Beetle TDI, on automatics and on manual cars without coolant glow plugs. Sold each.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eVehicle\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999–2003\u003c\/td\u003e\n\u003ctd\u003eVW Golf Mk4 TDI (ALH)\u003c\/td\u003e\n\u003ctd\u003eAutomatic, or manual without coolant glow plugs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999–2003\u003c\/td\u003e\n\u003ctd\u003eVW Jetta Mk4 TDI sedan \/ 2002–2003 Jetta Wagon TDI (ALH)\u003c\/td\u003e\n\u003ctd\u003eSame conditions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1998–2003\u003c\/td\u003e\n\u003ctd\u003eVW New Beetle TDI (ALH)\u003c\/td\u003e\n\u003ctd\u003eSame conditions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAny\u003c\/td\u003e\n\u003ctd\u003eALH manual with coolant glow plugs (auxiliary heater)\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eDoes not fit\u003c\/strong\u003e. Those cars use a flange with the glow-plug ports.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004+\u003c\/td\u003e\n\u003ctd\u003eBEW \/ BRM pumpe-düse TDI\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDoes not fit\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eFitment note: EMPI's listing gives no vehicle application for this part. The fitment above is based on the OE number 038 121 132 C as cross-referenced by US TDI specialists. Compare it with your old flange before you install.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003eJP Group JP-3160-0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOE reference\u003c\/td\u003e\n\u003ctd\u003e038 121 132 C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJP Group reference\u003c\/td\u003e\n\u003ctd\u003e1114502700\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e707924541427\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLocation\u003c\/td\u003e\n\u003ctd\u003eRear (transmission side) of cylinder head\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003ePlastic, OE-style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSold as\u003c\/td\u003e\n\u003ctd\u003eEach\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping weight\u003c\/td\u003e\n\u003ctd\u003e3.17 lb as published by EMPI (package 8 x 8 x 9 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eOne coolant flange\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eNot Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFlange-to-head O-ring or seal (check yours. A new seal is strongly recommended)\u003c\/li\u003e\n\u003cli\u003eCoolant hoses and clamps\u003c\/li\u003e\n\u003cli\u003eG12 \/ G12+ coolant\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy It Matters\u003c\/h3\u003e\u003cp\u003eThe ALH TDI is one of the most loved VW engines, but its plastic coolant flanges get brittle from years of heat cycles. Hairline cracks form, often around the hose nipples or the mounting ears. You may see crusty pink or purple coolant residue on the back of the head or the transmission bell housing, smell sweet coolant after a drive, or need to top up the expansion tank. A cracked flange can fail suddenly and dump coolant, which risks overheating the engine. Many TDI owners replace these flanges as preventive maintenance during a timing belt or hose job.\u003c\/p\u003e\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eWork on a cold engine. Drain enough coolant to bring the level below the flange.\u003c\/li\u003e\n\u003cli\u003eRemove the hoses and the two bolts, then clean the head face with a plastic scraper. Do not gouge the aluminum.\u003c\/li\u003e\n\u003cli\u003eFit a new O-ring or seal, lightly wetted with coolant, and tighten the bolts evenly. Plastic flanges crack easily if over-tightened.\u003c\/li\u003e\n\u003cli\u003eRefill with the correct VW-spec coolant, bleed the system, and check for leaks once warm.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it fit my 2002 Jetta TDI 5-speed?\u003c\/strong\u003e\u003cbr\u003eYes, unless your car has coolant glow plugs (auxiliary heater) in the flange. In that case it uses a different flange.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I tell if I have coolant glow plugs?\u003c\/strong\u003e\u003cbr\u003eLook at the back of the head. A flange with electrical heater elements and wires plugged into it means you have coolant glow plugs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this the same as OE 038 121 132 C?\u003c\/strong\u003e\u003cbr\u003eYes. JP Group cross-references JP-3160-0 to 038 121 132 C.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it fit a 2004 Jetta TDI?\u003c\/strong\u003e\u003cbr\u003eNo. The 2004+ BEW engine uses different flanges.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat else do I need?\u003c\/strong\u003e\u003cbr\u003eA new flange seal or O-ring, hose clamps if the old ones are weak, and VW-spec coolant.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it new?\u003c\/strong\u003e\u003cbr\u003eYes, new JP Group.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cb\u003eExplore Related Categories\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/engine\"\u003eEngine Parts \u0026amp; Performance\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"wm-legal\"\u003e\u003csmall\u003eVolkswagen® and model names are trademarks of Volkswagen AG. Washburn's Metal is not affiliated with or endorsed by Volkswagen. Part numbers are for reference only.\u003c\/small\u003e\u003c\/p\u003e\n\u003cp\u003e\u003csmall\u003e\u003cb\u003eCalifornia Prop 65 Warning:\u003c\/b\u003e This product can expose you to chemicals which are known to the State of California to cause cancer and reproductive harm. For more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e.\u003c\/small\u003e\u003c\/p\u003e","brand":"JP Group","offers":[{"title":"Default Title","offer_id":67100817752179,"sku":"JP-3160-0","price":11.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/2760\/1523\/files\/JP-3160-0.jpg?v=1793697619","url":"https:\/\/www.washburnsmetal.com\/products\/jp-group-coolant-flange-vw-golf-jetta-new-beetle-tdi-alh-038121132c-jp-3160-0","provider":"Washburn's Metal","version":"1.0","type":"link"}