{"product_id":"a-pr181-ai-rings-piston","title":"A-PR181-AI Rings, Piston","description":"\u003ch3\u003eOne New Aftermarket Replacement Piston Ring Set Fits Ford Tractors with 172 CID Diesel Engine\u003c\/h3\u003e\u003cp\u003eThis aftermarket replacement piston ring set (A-PR181-AI) is designed Fits Ford tractors equipped with the 172 CID four-cylinder diesel engine and 5-ring style pistons at standard 3.90\" bore. Piston rings seal combustion gases, control oil consumption, and transfer heat from the piston to the cylinder wall -- making them a critical component during any engine rebuild or overhaul. This set services all four pistons.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Measure your existing rings before ordering. Due to the number of different piston manufacturers used on these engines, multiple ring set specifications exist for the same model. Verify bore size and ring thickness before purchase.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBore Size: Standard (3.90\")\u003c\/li\u003e\n\u003cli\u003ePiston Style: 5-Ring Style\u003c\/li\u003e\n\u003cli\u003eCoverage: Complete set for all 4 pistons\u003c\/li\u003e\n\u003cli\u003eEngine: Fits Ford 172 CID 4-Cylinder Diesel\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatible Models\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eFits Ford Tractors (Diesel, up to 1964):\u003c\/strong\u003e 800, 900, 4000\u003c\/p\u003e\u003ch4\u003eReplaces Part Number(s):\u003c\/h4\u003e\u003cp\u003eA-PR181-AI, A-PR181, 2C7999.STD\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":40023283630163,"sku":"A-PR181-AI","price":125.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0079\/4060\/3955\/files\/RAP_ComingSoon_Tractor_9e0ada37-0aaf-46fb-a806-5378a73e5c63.jpg?v=1757956422","url":"https:\/\/www.reliableaftermarketparts.ca\/products\/a-pr181-ai-rings-piston","provider":"Reliable Aftermarket Parts, Inc®","version":"1.0","type":"link"}