{"product_id":"onan-rings-gasket-kit-b43-b48-p216-p218-p220-late-113-0310-os-n9kl-q1a7","title":"Onan Rings \u0026 Gasket Kit B43 B48 P216 P218 P220 Late 113-0310","description":"\u003cp\u003eLate-Style Ring and Gasket Kit for Onan 3.25-Inch Twins (113-0310) This kit combines two late-style standard-bore piston ring sets - one for each cylinder of the Onan opposed-twin - with a complete gasket set that includes crankshaft seals and valve seals. The rings replace Onan part number 113-0310. Bore size is 3.25 inches (82.55 mm), standard. Late-Style Pistons - Confirm Before Ordering These rings fit late-style pistons, which use 1.5 mm (.058 inch) top and second ring grooves and a 3.0 mm oil ring. The simplest check is to measure your top ring groove: 1.5 mm means this set (113-0310). If it measures 2.0 mm (.078 inch), you have early-style pistons and need ring set 113-0314 instead. Fitment Fits Onan B-series and P-series 3.25-inch opposed-twin engines with late-style pistons: B43, B48, P216, P218, and P220, including the G and V variants. Standard Bore and Related Kits This set is for cylinders at the standard 3.250-inch bore; for a bored-oversize cylinder, order the matching oversize ring set. For a rings-only option, the same 113-0310 late-style rings are available separately, and complete kits that add pistons, rods, or a valve set are available for a fuller rebuild.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eIncludes a complete gasket set with crankshaft seals and valve seals, plus two late-style standard-bore ring sets, one for each cylinder of the Onan opposed-twin engine. Replaces Onan ring set 113-0310. Fits a 3.25 inch (82.55 mm) standard bore; the rings are 1.5 mm.\u003c\/li\u003e\n\u003cli\u003eFits Onan B-series and P-series 3.25 inch opposed-twin engines with late-style pistons, including B43, B48, P216, P218, and P220 (and their G and V variants).\u003c\/li\u003e\n\u003cli\u003eFor late-style pistons. Late pistons use 1.5 mm (.058 inch) top and second ring grooves with a 3.0 mm oil ring. Measure your top ring groove: 1.5 mm is this set. If it measures 2.0 mm (.078 inch), you have early-style pistons and need ring set 113-0314 instead.\u003c\/li\u003e\n\u003cli\u003eSized for a standard 3.250 inch bore. If a cylinder has been machined oversize, order the ring set that matches that oversize instead. Confirm your bore and ring style before ordering.\u003c\/li\u003e\n\u003cli\u003eThis engine family is also served by a late-style rings-only set, an early-style ring-and-gasket kit (113-0314), and complete kits that add pistons, connecting rods, or a valve set for a deeper rebuild.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lil Red Barn","offers":[{"title":"Default Title","offer_id":68009641345178,"sku":"OS-N9KL-Q1A7","price":119.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/2346\/6909\/files\/710c3nzGAfS.jpg?v=1793383107","url":"https:\/\/performancesawsupply.com\/products\/onan-rings-gasket-kit-b43-b48-p216-p218-p220-late-113-0310-os-n9kl-q1a7","provider":"Performance Saw Supply","version":"1.0","type":"link"}