{"product_id":"078-103-363-p-genuine-vw-audi-cylinder-head-pressure-relief-valve","title":"078-103-363-P Genuine VW\/Audi Cylinder Head Pressure Relief Valve","description":"\u003ch2\u003eOriginal pressure-relief valve for the specified cylinder head\u003c\/h2\u003e\u003cp\u003e078-103-363-P is the Genuine VW\/Audi pressure-relief valve listed in the original cylinder-head assembly for the confirmed application below. Its threaded body and valve configuration must match the assigned engine position.\u003c\/p\u003e\u003cp\u003ePressure-control components must be selected by their original specification. Replacing this valve is appropriate when the engine repair procedure and diagnosis identify it as defective or when its body is damaged; it should not be chosen solely by thread size or external appearance.\u003c\/p\u003e\u003ch3\u003eTechnical details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eComplete factory number: 078-103-363-P.\u003c\/li\u003e\n\u003cli\u003eFactory specification: factory cylinder-head pressure-relief valve, revision P.\u003c\/li\u003e\n\u003cli\u003eDesign: threaded metal valve body with external drive and central passage, as pictured.\u003c\/li\u003e\n\u003cli\u003eQuantity supplied: one individual pressure-relief valve.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eOne individual valve is supplied. Cylinder head, sealing components, engine oil and other valves are separate. This listing does not supply a complete cylinder-head repair kit or a general-purpose plug.\u003c\/p\u003e\u003ch3\u003eCommon reasons to replace\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eThe engine-specific test procedure identifies a valve fault.\u003c\/li\u003e\n\u003cli\u003eThe original valve body, threads or drive are damaged.\u003c\/li\u003e\n\u003cli\u003eThe valve is missing from its assigned original position.\u003c\/li\u003e\n\u003cli\u003eThe applicable cylinder-head repair procedure requires replacement.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFollow the engine-specific diagnostic procedure and inspect the valve bore and adjoining oil passages as required. Pressure symptoms can have several causes; a new valve cannot repair worn bearings, blocked passages or damaged engine castings.\u003c\/p\u003e\u003ch3\u003eVehicle fitment\u003c\/h3\u003e\u003cp\u003eUse only at the original cylinder-head valve position specifying this complete number. Confirm the engine, original valve and serviced assembly before ordering.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eVehicle\u003c\/th\u003e\n\u003cth\u003eModel years\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eConfiguration\u003c\/th\u003e\n\u003cth\u003eApplication restrictions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003eAudi 100 quattro\u003c\/td\u003e\n\u003ctd\u003e1993\u003c\/td\u003e\n\u003ctd\u003e2.8L gasoline V6\u003c\/td\u003e\n\u003ctd\u003eC4 quattro sedan or Avant; matching original cylinder head\u003c\/td\u003e\n\u003ctd\u003eAssigned cylinder-head pressure-relief valve position; match original complete valve number and engine assembly.\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation guidance\u003c\/h3\u003e\u003cp\u003eFollow the cylinder-head repair procedure, maintain cleanliness around open oil passages and use the specified sealing and tightening method. Do not apply an arbitrary sealant or substitute a plain threaded plug.\u003c\/p\u003e\u003cp\u003eComplete the prescribed engine checks and inspect the serviced joint for leakage. Verify any required pressure readings using the engine-specific test procedure.\u003c\/p\u003e\u003ch3\u003eOrdering information\u003c\/h3\u003e\u003cp\u003eOne individual Genuine VW\/Audi pressure-relief valve. Cylinder head, oil and separately required sealing parts are separate. Confirm original number and installation position.\u003c\/p\u003e","brand":"Genuine VW\/Audi","offers":[{"title":"Default Title","offer_id":48048094609585,"sku":"078-103-363-P","price":63.33,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0681\/1379\/3201\/files\/078-103-363-p-genuine-vw-audi-1.jpg?v=1792145788","url":"https:\/\/hstuning.com\/products\/078-103-363-p-genuine-vw-audi-cylinder-head-pressure-relief-valve","provider":"HS Tuning ","version":"1.0","type":"link"}