{"product_id":"main-bearing-set-chevrolet-pontiac-mb554am-030-eb2372m5030k-king-nos","title":"Main bearing set - Chevrolet\/Pontiac - MB554AM 030\/EB2372M5030K - King - NOS","description":"\u003cdiv style=\"margin-bottom:20px;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight:500;width:140px;padding:4px 0;\"\u003eBrand\u003c\/td\u003e\n\u003ctd style=\"font-weight:600;padding:4px 0;\"\u003eKing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight:500;width:140px;padding:4px 0;\"\u003ePart Number\u003c\/td\u003e\n\u003ctd style=\"font-weight:600;padding:4px 0;\"\u003eMB554AM 030\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight:500;width:140px;padding:4px 0;\"\u003eType\u003c\/td\u003e\n\u003ctd style=\"font-weight:600;padding:4px 0;\"\u003eMain Bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight:500;width:140px;padding:4px 0;\"\u003eCondition\u003c\/td\u003e\n\u003ctd style=\"font-weight:600;padding:4px 0;\"\u003eNew Old Stock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCrankshaft undersize: 0.030\" (0.762mm)\u003c\/li\u003e\n\u003cli\u003eSeries: AM-Series (bi-metal, 1\/2 groove)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eVehicle Fitment\u003c\/h3\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:13px;\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:5px 10px;font-weight:500;\"\u003eChevrolet\u003c\/td\u003e\n\u003ctd style=\"padding:5px 10px;\"\u003esmall block V8 265 (4.3L) — small journal crankshaft, 1955–1957\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:5px 10px;font-weight:500;\"\u003eChevrolet\u003c\/td\u003e\n\u003ctd style=\"padding:5px 10px;\"\u003esmall block V8 283 (4.6L) — small journal crankshaft, 1957–1967\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:5px 10px;font-weight:500;\"\u003eChevrolet\u003c\/td\u003e\n\u003ctd style=\"padding:5px 10px;\"\u003esmall block V8 302 (4.9L) — small journal crankshaft, 1967–1969 Z\/28 Camaro\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:5px 10px;font-weight:500;\"\u003eChevrolet\u003c\/td\u003e\n\u003ctd style=\"padding:5px 10px;\"\u003esmall block V8 327 (5.4L) — small journal crankshaft, 1962–1967\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:5px 10px;font-weight:500;\"\u003eChevrolet\u003c\/td\u003e\n\u003ctd style=\"padding:5px 10px;\"\u003eBel Air 1957–1967 4.6L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:5px 10px;font-weight:500;\"\u003eChevrolet\u003c\/td\u003e\n\u003ctd style=\"padding:5px 10px;\"\u003eImpala 1957–1967 4.6L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:5px 10px;font-weight:500;\"\u003eHolden\u003c\/td\u003e\n\u003ctd style=\"padding:5px 10px;\"\u003eHK 1968–1969 5.4L (327 Chev V8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:5px 10px;font-weight:500;\"\u003ePontiac\u003c\/td\u003e\n\u003ctd style=\"padding:5px 10px;\"\u003eLaurentian 1960–1963 4.6L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:5px 10px;font-weight:500;\"\u003ePontiac\u003c\/td\u003e\n\u003ctd style=\"padding:5px 10px;\"\u003eParisienne 1961–1970 (4.6L and 5.4L variants)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCross References\u003c\/h3\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:13px;\"\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:6px 10px;font-weight:600;font-size:11px;text-transform:uppercase;letter-spacing:0.5px;\"\u003ePart Numbers\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:6px 10px;font-weight:600;font-size:11px;text-transform:uppercase;letter-spacing:0.5px;\"\u003eRelationship\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;font-family:monospace;font-size:12px;\"\u003eEB2372M5030K, 75030900\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;\"\u003eequivalent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSmall journal variant — fits early small block Chev cranks (pre-1968 for most engines); not compatible with the later large journal 350\/400 or post-1968 327\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"background:#fffbeb;border:1px solid #fde68a;border-radius:8px;padding:14px 16px;margin-top:16px;font-size:13px;color:#92400e;line-height:1.6;\"\u003e\n\u003cstrong style=\"color:#78350f;\"\u003eNew Old Stock (NOS) — Unused part in original condition. Packaging may show age-related shelf wear.\u003c\/strong\u003e New Old Stock. Outer box is scuffed, dusty and shows corner wear consistent with long shelf life. Bearings remain sealed in factory heat-shrink plastic with original yellow anti-corrosion coating visible on the shell backs. No impact damage, no surface corrosion on the running faces. Rubber and elastomer components such as belts, seals, and gaskets may harden or degrade during extended storage — inspect before fitting. Please confirm this part number suits your vehicle before purchasing.\u003c\/div\u003e\n\n\u003cp style=\"margin:16px 0 0;font-size:11px;color:#6b7280;\"\u003eSKU: ENG-00336\u003c\/p\u003e","brand":"Nelson Merchant Surplus","offers":[{"title":"Default Title","offer_id":45059885891784,"sku":"ENG-00336","price":180.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2313\/5711\/files\/ENG-00336_2064_copy.jpg?v=1776650963","url":"https:\/\/nelsonmerchant.co.nz\/products\/main-bearing-set-chevrolet-pontiac-mb554am-030-eb2372m5030k-king-nos","provider":"Nelson Merchants","version":"1.0","type":"link"}