{"product_id":"hastings-rings-2m5538s-010-010-oversize-moly-piston-ring-set-for-4-0-inch-bore","title":"Hastings Rings 2M5538S-010 .010 Oversize Moly Piston Ring Set for 4.0-Inch Bore","description":"Moly piston ring set is for 4.0 inch bore and is .010 oversize . Set includes two 1\/16 inch compression rings and one 3.0mm oil ring.\n\u003cp\u003eThe Hastings Rings 2M5538S-010 piston ring set is designed for applications using a 4.0-inch bore with a .010-inch oversize piston. This moly ring set helps support reliable cylinder sealing, efficient oil control, and consistent engine performance in compatible 95-inch Big Bore Twin Cam applications. It is a practical replacement solution for engine rebuilding, restoration, and performance service work.\u003cbr\u003eThe set includes two 1\/16-inch compression rings and one 3.0 mm oil ring. The compression rings help maintain combustion pressure while limiting blow-by, and the oil ring is designed to manage oil on the cylinder wall for dependable lubrication control. Verify piston, groove, bore, and ring specifications before installation to ensure proper compatibility and fit.\u003cbr\u003eManufactured by Hastings Rings, part number 2M5538S-010, this piston ring set is supplied as a complete set for one compatible application. The product is sold as a set and is made in the USA. Follow the engine manufacturer’s installation procedures, including correct ring orientation, end-gap verification, and break-in recommendations, for best results.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eBrand: Hastings Rings\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003ePart Number: 2M5538S-010\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eApplication: 95-inch Big Bore Twin Cam piston ring set\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eBore Size: 4.0 inches\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eOversize: .010 inch\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eRing Material: Moly\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCompression Rings: Two 1\/16-inch rings\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eOil Ring: One 3.0 mm ring\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eUnit of Measure: Set\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCountry of Origin: USA\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eAccessory Items: None\u003c\/li\u003e\u003c\/ul\u003e","brand":"Hastings Rings","offers":[{"title":"Default Title","offer_id":67804825059513,"sku":"11-3913","price":101.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2285\/8794\/files\/11-3913a.jpg?v=1792450363","url":"https:\/\/atticusgoods.com\/products\/hastings-rings-2m5538s-010-010-oversize-moly-piston-ring-set-for-4-0-inch-bore","provider":"Atticus Goods","version":"1.0","type":"link"}