{"product_id":"pmo-heater-block-off-plate-left-hand-single-plate-air-cooled-porsche-flat-six-pm-o502-0","title":"PMO Heater Block-Off Plate — Left Hand, Single Plate | Air-Cooled Porsche Flat-Six (PM-O502-0)","description":"\u003cp\u003ePulling the heat exchangers for a track build, a hot-rod engine, or a header setup leaves two open ports on the engine that need closing off properly. The \u003cstrong\u003ePMO Heater Block-Off Plate, Left (PM-O502-0)\u003c\/strong\u003e seals the left-hand side cleanly — machined to the correct flange pattern instead of a shop-made piece of sheet that never quite sits flat.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeft-hand plate\u003c\/strong\u003e, made to the correct flange and bolt pattern — no drilling or fettling.\u003c\/li\u003e\n\u003cli\u003eCloses off the heater port when heat exchangers are removed for headers or a race setup.\u003c\/li\u003e\n\u003cli\u003eFinished to look right in an engine bay that will be photographed and judged.\u003c\/li\u003e\n\u003cli\u003ePairs with the right-hand plate (PM-O501-0), or buy both together as the set (PM-O503-0).\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eConfirmed:\u003c\/strong\u003e Air-cooled Porsche flat-six engines running heater block-off in place of heat exchangers — left-hand side.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e this listing is the \u003cem\u003eleft\u003c\/em\u003e plate only. Most engines need both sides — add PM-O501-0 for the right, or order the complete set as PM-O503-0. Removing heat exchangers eliminates cabin heat and defrost; confirm that suits how the car will be used and registered.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart number: PM-O502-0\u003c\/li\u003e\n\u003cli\u003eSide: Left\u003c\/li\u003e\n\u003cli\u003eSold as: single plate\u003c\/li\u003e\n\u003cli\u003eUPC: 707924557077\u003c\/li\u003e\n\u003cli\u003eCountry of origin: China\u003c\/li\u003e\n\u003cli\u003eShipping weight: 0.66 lb\u003c\/li\u003e\n\u003cli\u003eBoxed dimensions: 11 x 10 x 3.5 in\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eQuestions \u0026amp; Answers\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoes this include both sides?\u003c\/strong\u003e No — this is the left plate only. The right is PM-O501-0; the complete set is PM-O503-0.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is a heater block-off plate for?\u003c\/strong\u003e It seals the heater port on the engine when heat exchangers are removed, typically for headers or a race build.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill I lose cabin heat?\u003c\/strong\u003e Yes — removing heat exchangers removes cabin heat and defrost.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat's the part number?\u003c\/strong\u003e PM-O502-0.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAre you an authorized dealer?\u003c\/strong\u003e Yes — Washburn's Metal is an authorized PMO dealer.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003e⚠️ WARNING:\u003c\/strong\u003e This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.\u003c\/p\u003e","brand":"PMO","offers":[{"title":"Default Title","offer_id":45273416269939,"sku":"PM-O502-0","price":133.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/2760\/1523\/files\/PM-O502-0-scaled.jpg?v=1784766901","url":"https:\/\/www.washburnsmetal.com\/products\/pmo-heater-block-off-plate-left-hand-single-plate-air-cooled-porsche-flat-six-pm-o502-0","provider":"Washburn's Metal","version":"1.0","type":"link"}