{"product_id":"mazda-mx5-na-nb-acl-race-connecting-rod-bearings-new-aftermarket","title":"Mazda MX5 NA\/NB ACL Race Connecting Rod Bearings (New) (Aftermarket)","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eMazda MX5 NA\/NB ACL Race Connecting Rod Bearings (New) (Aftermarket)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"87\" data-end=\"378\"\u003eA trusted choice for high-performance engine builds, ACL Race connecting rod bearings offer excellent strength, heat resistance, and durability under extreme loads. Engineered for Mazda MX-5 NA and NB models, they’re ideal for turbocharged, supercharged, and track-focused BP-series engines.\u003c\/p\u003e\n\u003cp data-start=\"380\" data-end=\"749\"\u003eThe 4B8351H bearing set features ACL’s high-strength tri-metal construction with a hardened steel backing, copper-lead intermediate layer, and lead-tin overlay. This design delivers excellent oil film retention and fatigue resistance, even under sustained high RPM use. Compatible with 1.6L and 1.8L BP engines, these are a direct-fit upgrade for standard rod bearings.\u003c\/p\u003e\n\u003cp data-start=\"751\" data-end=\"987\"\u003e\u003cstrong data-start=\"791\" data-end=\"814\"\u003eInstallation Notes:\u003c\/strong\u003e\u003cbr data-start=\"814\" data-end=\"817\"\u003eClear bearing and journal measurements should be checked prior to fitment using Plastigauge or micrometres. Always install with proper lubrication and pair with quality connecting rods for maximum durability. For best results, combine with ACL Race main and thrust bearings.\u003c\/p\u003e\n\u003ch4 data-start=\"989\" data-end=\"1004\"\u003eFeatures\u003c\/h4\u003e\n\u003cul data-start=\"1005\" data-end=\"1190\"\u003e\n\u003cli data-start=\"1005\" data-end=\"1068\"\u003e\n\u003cp data-start=\"1007\" data-end=\"1068\"\u003eTri-metal construction for high-load and high-RPM endurance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1069\" data-end=\"1127\"\u003e\n\u003cp data-start=\"1071\" data-end=\"1127\"\u003eDirect-fit for Mazda MX-5 NA\/NB 1.6L \u0026amp; 1.8L BP engines\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1128\" data-end=\"1190\"\u003e\n\u003cp data-start=\"1130\" data-end=\"1190\"\u003eProven choice for turbo builds, circuit racing, and drifting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"149","offers":[{"title":"STD","offer_id":47944826749079,"sku":"4B8351H-STD_ORDERIN","price":119.99,"currency_code":"NZD","in_stock":true},{"title":"STDX","offer_id":47944826781847,"sku":"4B8351H-STDX_ORDERIN","price":134.99,"currency_code":"NZD","in_stock":true},{"title":"0.025","offer_id":47944826814615,"sku":"4B8351H-050_ORDERIN","price":134.99,"currency_code":"NZD","in_stock":true},{"title":"0.25","offer_id":47944826847383,"sku":"4B8351H-025_ORDERIN","price":134.99,"currency_code":"NZD","in_stock":true},{"title":"0.50","offer_id":47944826880151,"sku":"4B8351H-050_ORDERIN","price":134.99,"currency_code":"NZD","in_stock":true}],"url":"https:\/\/miataparts.co.nz\/products\/mazda-mx5-na-nb-acl-race-connecting-rod-bearings-new-aftermarket","provider":"Miata Parts NZ","version":"1.0","type":"link"}