{"product_id":"king-xp-rod-bearings-42mm-4age-4agze-aw11","title":"King XP pMaxBlack Rod Bearing Set | 42 mm (1986-89 MR2 \/ 1987-91 Corolla)","description":"\u003ch2\u003eKing XP pMaxBlack Connecting Rod Bearing Set\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eFor 1986–1989 Toyota MR2 AW11 and 1987–1991 Toyota Corolla AE92 coupe equipped with 4A-GE \/ 4A-GZE engines using the 42 mm crankpin \/ 45 mm rod-housing interface.\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eKing XP pMaxBlack Connecting Rod Bearing Set\u003c\/strong\u003e is a performance bearing set for the \u003cstrong\u003e4A-GE \/ 4A-GZE 42 mm crankpin \/ 45 mm connecting-rod housing family\u003c\/strong\u003e. Applications include 1987–1989 JDM and 1988–1989 U.S.-Market naturally aspirated Toyota MR2 AW11, 1986–1989 JDM and 1988–1989 U.S.-Market supercharged MR2 AW11, 1987–1991 JDM Toyota Corolla AE92 coupes, and the 1988–1991 U.S.-Market Toyota Corolla AE92 GT-S. The 1987 JDM naturally aspirated transition requires the later 42\/45 mm assembly; the year alone does not establish fitment. Its copper-lead tri-metal construction and hardened pMaxBlack overlay are designed for demanding, high-load engine use.\u003c\/p\u003e\n\u003cp\u003eEach set contains \u003cstrong\u003efour matching bearing pairs (eight shells)\u003c\/strong\u003e, covering all four connecting rods. Five bearing-size choices accommodate standard-diameter crankpins, measured clearance requirements, and properly reground crankpins. The correct option depends on the actual crankshaft and rod dimensions, not on the vehicle year alone.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eKing XP copper-lead tri-metal bearings\u003c\/strong\u003e designed for performance engine builds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003epMaxBlack hardened overlay\u003c\/strong\u003e for high-load bearing service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRadiaLock crush-height design\u003c\/strong\u003e supports bearing retention and heat transfer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEccentriX bearing geometry\u003c\/strong\u003e supports hydrodynamic lubrication.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFive bearing-size options\u003c\/strong\u003e for nominal crankpins and two crankshaft undersizes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eChoosing the Correct Bearing Size\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eStandard clearance\u003c\/strong\u003e is for a nominal-size crankshaft. \u003cstrong\u003e0.001 in extra clearance\u003c\/strong\u003e and \u003cstrong\u003e0.001 in reduced clearance\u003c\/strong\u003e provide approximately that change in assembled diametral oil clearance on the same nominal crankshaft. \u003cstrong\u003e0.25 mm\u003c\/strong\u003e and \u003cstrong\u003e0.50 mm crank undersize\u003c\/strong\u003e are for correspondingly reground crankpins, not extra-clearance choices.\u003c\/p\u003e\n\u003cp\u003eThe correct size depends on the finished crankshaft journal, rod housing and required assembled oil clearance.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\n\u003cp\u003eEvery application requires the original-style \u003cstrong\u003e42 mm crankpin \/ 45 mm rod-housing bearing interface\u003c\/strong\u003e, with the correctly selected size and matching bearing geometry.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eToyota MR2 — AW11 \/ MK1\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1987–1989:\u003c\/strong\u003e JDM \/ naturally aspirated 4A-GE with the later 42\/45 mm assembly introduced at the September 1987 production change. \u003cstrong\u003eSeptember transition builds require actual crank\/rod identification; the month alone does not establish fitment.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1988–1989:\u003c\/strong\u003e U.S.-Market \/ naturally aspirated 4A-GE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1986–1989:\u003c\/strong\u003e JDM Supercharged \/ 4A-GZE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1988–1989:\u003c\/strong\u003e U.S.-Market Supercharged \/ 4A-GZE\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eToyota Corolla \/ Sprinter — AE92 — Coupe\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1987–1991:\u003c\/strong\u003e Corolla Levin \/ Sprinter Trueno (JDM) \/ 4A-GE 16V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1987–1991:\u003c\/strong\u003e Corolla Levin \/ Sprinter Trueno GT-Z (JDM) \/ 4A-GZE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1988–1991:\u003c\/strong\u003e GT-S coupe (U.S.-Market) \/ 4A-GE 16V\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eFitment Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoes not fit original 40 mm crankpin \/ 43 mm rod-housing assemblies, including original AE86 4A-GE configurations, early AW11 configurations, and 4A-C, 4A-F and 4A-FE configurations.\u003c\/strong\u003e A shared 4A-GE engine name does not establish interchangeability between the two bearing families.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance and journal size determine the correct option.\u003c\/strong\u003e \u003cstrong\u003eToyota numbered factory bearing grades do not map directly to these King clearance choices.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.25 mm and 0.50 mm undersize bearings\u003c\/strong\u003e are for correspondingly reground crankshaft journals; they are not a solution for an oversized connecting-rod housing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModified engines and aftermarket connecting rods\u003c\/strong\u003e require matching bearing seats, locating tabs, oil-hole position, bearing width, crankshaft fillet clearance and assembled oil clearance. Nominal journal diameter alone does not establish fit.\u003c\/li\u003e\n\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e King Engine Bearings\u003cbr\u003e\u003cstrong\u003eSeries:\u003c\/strong\u003e XP \/ pMaxBlack\u003cbr\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Connecting-Rod Bearing Set\u003cbr\u003e\u003cstrong\u003ePosition:\u003c\/strong\u003e Connecting-Rod Big End\u003cbr\u003e\u003cstrong\u003eConstruction:\u003c\/strong\u003e Copper-Lead Tri-Metal\u003cbr\u003e\u003cstrong\u003eOverlay:\u003c\/strong\u003e Hardened pMaxBlack\u003cbr\u003e\u003cstrong\u003eEngine Family:\u003c\/strong\u003e Toyota 4A-GE \/ 4A-GZE\u003cbr\u003e\u003cstrong\u003eBearing Family:\u003c\/strong\u003e Nominal 42 mm Crankpin \/ 45 mm Rod Housing\u003cbr\u003e\u003cstrong\u003eSet Quantity:\u003c\/strong\u003e Four Pairs \/ Eight Bearing Shells\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eRod Bearings and Main Bearings\u003c\/h2\u003e\n\u003cp\u003eRod bearings support the connecting rods on the crankpins. The separate \u003ca href=\"https:\/\/preserverad.com\/products\/acl-race-main-bearings-toyota-4age-4agze-ae86-aw11\"\u003e\u003cstrong\u003eACL Race Series standard-size main bearings\u003c\/strong\u003e\u003c\/a\u003e support the crankshaft in a standard-size main-journal assembly. Rod-bearing clearance or undersize does not determine the required main-bearing size.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eAvailable Configurations\u003c\/h2\u003e\n\u003cp\u003eEvery option includes \u003cstrong\u003e(4) matched pairs of connecting-rod bearings (8 shells total)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBearing Size\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNominal crank — Standard clearance\u003c\/li\u003e\n\u003cli\u003eNominal crank — 0.001 in extra clearance\u003c\/li\u003e\n\u003cli\u003eNominal crank — 0.001 in reduced clearance\u003c\/li\u003e\n\u003cli\u003e0.25 mm crank undersize\u003c\/li\u003e\n\u003cli\u003e0.50 mm crank undersize\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot included:\u003c\/strong\u003e Main bearings, thrust washers, connecting rods, crankshaft, rod bolts and gaskets.\u003c\/p\u003e","brand":"King Engine Bearings","offers":[{"title":"Nominal crank — Standard clearance","offer_id":67660675645749,"sku":"1444","price":74.95,"currency_code":"USD","in_stock":true},{"title":"Nominal crank — 0.001 in extra clearance","offer_id":67660675678517,"sku":"1445","price":79.95,"currency_code":"USD","in_stock":true},{"title":"Nominal crank — 0.001 in reduced clearance","offer_id":67660675711285,"sku":"1446","price":79.95,"currency_code":"USD","in_stock":true},{"title":"0.25 mm crank undersize","offer_id":67660675744053,"sku":"1447","price":79.95,"currency_code":"USD","in_stock":true},{"title":"0.50 mm crank undersize","offer_id":67660675776821,"sku":"1448","price":79.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/6005\/8421\/files\/aw11-king-xp-rod-bearing-set-01.png?v=1792551010","url":"https:\/\/preserverad.com\/products\/king-xp-rod-bearings-42mm-4age-4agze-aw11","provider":"Preserve Rad","version":"1.0","type":"link"}