{"product_id":"sierra-18-4088-piston-ring-set-replaces-omc-436353-fits-evinrude-johnson-90-175-hp-v-4-v-6-60-degree-eagle-series-sea-drive-3-600-std-bore","title":"Sierra 18-4088 Piston Ring Set, Replaces 436353, OMC V-4\/V-6 60-Degree Eagle Series 90-175 HP","description":"\u003cp\u003eThe Sierra 18-4088 Piston Ring Set is a standard-size replacement ring set for OMC V-4\/V-6 60-Degree Eagle Series Sea Drive engines, covering the 90-175 HP range built between 1991 and 2000. It is designed for 4 and 6 cylinder blocks with a 3.600 inch standard bore, and the same ring set applies to both port and starboard pistons at this bore size, so one part number covers the full rebuild whether you are working on the port or starboard side of the powerhead.\u003c\/p\u003e\u003cp\u003eEach ring is manufactured from alloy steel and cast iron for wear resistance and a reliable seal against the cylinder wall, helping restore compression and reduce oil blow-by during a top-end rebuild. The set is built to meet or exceed the specification of the original equipment ring it replaces, making it a straightforward drop-in choice when rebuilding OMC 60-Degree Eagle Series powerheads at standard bore.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-4088\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Piston Ring Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore Size:\u003c\/strong\u003e 3.600 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiston Size:\u003c\/strong\u003e Standard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder Configuration:\u003c\/strong\u003e 4 and 6 cylinder\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Horsepower Range:\u003c\/strong\u003e 90-175 HP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Model Years:\u003c\/strong\u003e 1991-2000\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Series:\u003c\/strong\u003e OMC V-4\/V-6 60-Degree Eagle Series (Sea Drive)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Alloy Steel, Cast Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.07 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 436353\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282125110\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eOMC V-4\/V-6 60-Degree Eagle Series (Sea Drive), 4 and 6 cylinder, 90-175 HP, 1991-2000, 3.600 inch standard bore, port and starboard\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e436353\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-4088 piston ring set fit?\u003c\/strong\u003e It fits OMC V-4\/V-6 60-Degree Eagle Series Sea Drive engines in the 90-175 HP range, 4 and 6 cylinder, built between 1991 and 2000, with a 3.600 inch standard bore.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-4088 ring set for the port or starboard side?\u003c\/strong\u003e The same Sierra 18-4088 ring set is used on both the port and starboard pistons at the 3.600 inch bore size, so one part number covers either side of the engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat bore size is this ring set made for?\u003c\/strong\u003e 18-4088 is sized for a 3.600 inch standard bore, not an oversize bore.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM number does the Sierra 18-4088 replace?\u003c\/strong\u003e It replaces OEM number 436353 on OMC 60-Degree Eagle Series 3.600 inch bore engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a standard size or oversize ring set?\u003c\/strong\u003e The 18-4088 set is the standard size ring for the 3.600 inch bore; oversize bores use different Sierra part numbers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many cylinders does this ring set cover per engine?\u003c\/strong\u003e It is used on 4 and 6 cylinder OMC V-4\/V-6 60-Degree Eagle Series Sea Drive engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat model years does the 18-4088 cover?\u003c\/strong\u003e It covers the 1991-2000 model years on OMC 60-Degree Eagle Series 90-175 HP engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the piston rings made of?\u003c\/strong\u003e The Sierra 18-4088 rings are made of alloy steel and cast iron for wear resistance in the cylinder bore.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included with the Sierra 18-4088?\u003c\/strong\u003e The listing is for one piston ring set, part number 18-4088, sized for a single 3.600 inch bore cylinder.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-4088 ring set weigh?\u003c\/strong\u003e It weighs 0.07 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is 18-4088 different from 18-4089 or 18-4090?\u003c\/strong\u003e 18-4088 is sized for a 3.600 inch bore, 18-4089 is sized for a 3.620 inch bore, and 18-4090 is sized for a 3.630 inch bore and replaces a different OEM ring number, 436354.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-4088 meet OEM specification?\u003c\/strong\u003e Yes, the 18-4088 ring set is built to meet or exceed the specification of the 436353 OEM ring it replaces.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988170813659,"sku":"SIE-18-4088","price":40.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-4088__24849.1737859077.500.750.jpg?v=1785188216","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-4088-piston-ring-set-replaces-omc-436353-fits-evinrude-johnson-90-175-hp-v-4-v-6-60-degree-eagle-series-sea-drive-3-600-std-bore","provider":"Good Vibes Marina","version":"1.0","type":"link"}