{"product_id":"a-b1594540-ai-piston-assembly-020","title":"A-B1594540-AI PISTON ASSEMBLY-020","description":"\u003ch3\u003eOne New Aftermarket Replacement Piston Assembly - 020 Oversize Fits Briggs \u0026amp; Fits Stratton Engines\u003c\/h3\u003e\u003cp\u003eThis 020 oversize piston assembly is a precision-fit engine component designed Fits Briggs \u0026amp; Fits Stratton (B\u0026amp;S) single-cylinder Intek and OHV engines. An oversize piston assembly is used during engine rebuilds when the cylinder bore has been bored or worn beyond standard dimensions -- the 020 designation indicates a 0.020-inch oversize bore. This assembly replaces the worn piston and is a critical component for restoring proper compression and engine performance in lawn tractors, riding mowers, and related outdoor power equipment.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e  \u003cli\u003eOversize: 020 (0.020 in \/ 0.508 mm over standard bore)\u003c\/li\u003e  \u003cli\u003eStandard bore reference: 90.6 mm (3.57 in) for compatible 31R\/31H\/31P series engines\u003c\/li\u003e  \u003cli\u003eApplication: Single-cylinder Fits Briggs \u0026amp; Fits Stratton Intek OHV engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatible Models\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eFits Briggs \u0026amp; Fits Stratton Intek OHV Engine Series (partial list -- confirm with your engine model and type number):\u003c\/strong\u003e 31R607, 31R677, 31R777, 31H777, 31P777, and compatible Fits Toro equipment using these engines. This part fits over 1,000 machine configurations -- verify fitment using your engine model, type, and code numbers before ordering.\u003c\/p\u003e\u003ch4\u003eReplaces Part Number(s):\u003c\/h4\u003e\u003cp\u003e594540, B1594540, A-B1594540-AI\u003c\/p\u003e\u003ch4\u003eSupersedes\u003c\/h4\u003e\u003cp\u003eSupersedes Fits Briggs \u0026amp; Fits Stratton OEM part number 796173.\u003c\/p\u003e\u003cp\u003eNew aftermarket replacement part - not remanufactured, not used.\u003c\/p\u003e","brand":"Reliable Aftermarket Parts, Inc® -OD","offers":[{"title":"Default Title","offer_id":40537181651027,"sku":"A-B1594540-AI","price":230.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0079\/4060\/3955\/files\/RAP_ComingSoon_Tractor_b7238833-986d-4892-8bfc-af590c184422.jpg?v=1757765107","url":"https:\/\/www.reliableaftermarketparts.ca\/products\/a-b1594540-ai-piston-assembly-020","provider":"Reliable Aftermarket Parts, Inc®","version":"1.0","type":"link"}