{"product_id":"acl-race-series-main-bearing-set-0-25mm-oversize-4m2633h-25-350z-de-03-06","title":"ACL Race Series Main Bearing Set - 0.25mm Oversize 4M2633H-.25 - 350Z DE 03-06","description":"\u003cstyle\u003e\n  .wl-listing { font-family: inherit; color: inherit; max-width: 100%; }\n  .wl-listing p { margin: 0 0 14px; line-height: 1.7; }\n  .wl-listing h2 { font-size: 1.1em; font-weight: 600; margin: 24px 0 10px; padding: 0; border: none; }\n  .wl-listing ul { margin: 0 0 16px; padding-left: 20px; }\n  .wl-listing ul li { margin-bottom: 6px; line-height: 1.6; }\n  .wl-listing .wl-lede { font-size: 1.05em; }\n  .wl-listing .wl-pull { border-left: 3px solid #1a6ab5; padding: 10px 16px; margin: 18px 0; font-weight: 500; background: #f4f8fd; border-radius: 0 4px 4px 0; }\n  .wl-listing .wl-table { width: 100%; border-collapse: collapse; margin: 12px 0 16px; font-size: 0.88em; }\n  .wl-listing .wl-table th { background: #f8f9fb; border: 1px solid #dde3ea; padding: 7px 10px; text-align: left; font-weight: 600; color: #374151; font-size: 0.78em; text-transform: uppercase; letter-spacing: 0.05em; }\n  .wl-listing .wl-table td { border: 1px solid #dde3ea; padding: 7px 10px; color: #4b5563; }\n  .wl-listing .wl-table tr:nth-child(even) td { background: #f8f9fb; }\n  .wl-listing .wl-fitment { background: #f8f9fb; border: 1px solid #dde3ea; border-radius: 6px; padding: 12px 16px; margin: 12px 0; }\n  .wl-listing .wl-fitment p { margin: 4px 0; font-size: 0.92em; }\n  .wl-listing .wl-closing { background: #f0f7ee; border: 1px solid #b6d9a8; border-radius: 6px; padding: 14px 18px; margin-top: 20px; }\n  .wl-listing .wl-closing p { margin: 0; font-size: 0.95em; }\n  .wl-listing .wl-divider { border: none; border-top: 1px solid #e5e7eb; margin: 20px 0; }\n  .wl-listing .wl-install { display: flex; gap: 12px; flex-wrap: wrap; margin: 12px 0 16px; }\n  .wl-listing .wl-install-box { flex: 1; min-width: 120px; background: #f8f9fb; border: 1px solid #dde3ea; border-radius: 6px; padding: 10px 14px; }\n  .wl-listing .wl-install-label { font-size: 0.7em; text-transform: uppercase; letter-spacing: 0.08em; color: #6b7280; margin: 0 0 3px; font-weight: 600; }\n  .wl-listing .wl-install-val { font-size: 0.92em; font-weight: 600; color: #111; margin: 0; }\n  .wl-listing .wl-notice-red { background: #fef2f2; border: 1px solid #fca5a5; border-radius: 6px; padding: 10px 14px; margin: 12px 0; font-size: 0.88em; color: #7f1d1d; }\n  .wl-listing .wl-notice-red strong { font-weight: 600; }\n  .wl-listing .wl-badge-row { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 18px; }\n  .wl-listing .wl-badge { display: inline-block; font-size: 0.75em; font-weight: 600; padding: 3px 10px; border-radius: 20px; letter-spacing: 0.04em; }\n  .wl-listing .wl-badge-blue { background: #E6F1FB; color: #0C447C; border: 1px solid #85B7EB; }\n  .wl-listing .wl-badge-green { background: #EAF3DE; color: #27500A; border: 1px solid #97C459; }\n  @media (max-width: 520px) {\n    .wl-listing .wl-install { flex-direction: column; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"wl-listing\"\u003e\n\u003cdiv class=\"wl-badge-row\"\u003e\n\u003cspan class=\"wl-badge wl-badge-blue\"\u003e4M2633H-.25 · ACL Race Series\u003c\/span\u003e \u003cspan class=\"wl-badge wl-badge-green\"\u003eMain Bearing Set · 0.25mm Oversize\u003c\/span\u003e \u003cspan class=\"wl-badge wl-badge-blue\"\u003eVQ35DE · 350Z DE 2003 to 2006\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"wl-lede\"\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/automotivesuperstore.com.au\/media\/amasty\/shopby\/option_images\/acl_logo.jpg\" alt=\"ACL\" width=\"149\" height=\"162\"\u003e\u003cbr\u003eACL Race Series Main Bearing Set 0.25mm Oversize – Nissan 350Z DE\u003c\/strong\u003e\u003cbr\u003e4M2633H-.25 · VQ35DE · 2003 to 2006\u003cbr\u003e\u003cbr\u003eThe ACL Race Series 4M2633H-.25 is the main bearing set for VQ35DE engines where the crankshaft has been reground 0.25mm undersize. \u003cstrong\u003eThis is not a drop-in replacement it is specifically for engines with a machined crank\u003c\/strong\u003e, delivering the same F780 Trimetal construction and micron-tolerance manufacturing as the standard Race Series set, matched to a 0.25mm undersize journal diameter.\u003c\/p\u003e\n\u003cdiv class=\"wl-pull\"\u003eWhen a VQ35DE crankshaft shows wear, scoring, or out-of-round journals beyond the limits of a standard bearing, the crank is reground 0.25mm undersize and fitted with oversize bearings to restore correct oil clearance. The 4M2633H-.25 is the ACL Race Series solution for that application the same quality as the STD set, sized for the machined crank.\u003c\/div\u003e\n\u003chr class=\"wl-divider\"\u003e\n\u003ch2\u003eProduct specifications\u003c\/h2\u003e\n\u003ctable class=\"wl-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003e4M2633H-.25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eACL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eRace Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eMain bearing set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e0.25mm oversize (crank reground 0.25mm undersize)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eF780 Trimetal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSold as\u003c\/td\u003e\n\u003ctd\u003eSet (4 bearings)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr class=\"wl-divider\"\u003e\n\u003ch2\u003eWhy ACL Race Series\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCorrect oversize for a crank reground 0.25mm undersize restores proper oil clearance on a machined journal\u003c\/li\u003e\n\u003cli\u003eF780 Trimetal construction for high strength, excellent seizure resistance, and superior fatigue life\u003c\/li\u003e\n\u003cli\u003eMicron tolerance machining for consistent wall thickness, crush, and clearance across every bearing in the set\u003c\/li\u003e\n\u003cli\u003eNo flash plating for improved bearing retention and maximum heat transfer\u003c\/li\u003e\n\u003cli\u003eThe same Race Series quality as the STD set sized for a rebuilt crank\u003c\/li\u003e\n\u003cli\u003eTrusted by engine builders worldwide for road, circuit, and endurance applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"wl-divider\"\u003e\n\u003ch2\u003eInstallation\u003c\/h2\u003e\n\u003cdiv class=\"wl-install\"\u003e\n\u003cdiv class=\"wl-install-box\"\u003e\n\u003cp class=\"wl-install-label\"\u003eDifficulty\u003c\/p\u003e\n\u003cp class=\"wl-install-val\"\u003eEngine builder\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wl-install-box\"\u003e\n\u003cp class=\"wl-install-label\"\u003eTools required\u003c\/p\u003e\n\u003cp class=\"wl-install-val\"\u003eEngine assembly tools\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wl-notice-red\"\u003e\n\u003cstrong\u003eOnly for use with a crankshaft reground 0.25mm undersize.\u003c\/strong\u003e Fitting oversize bearings to a standard size crank will result in incorrect oil clearance and bearing failure. Always verify crankshaft journal diameter with a micrometer before ordering. Confirm the correct oversize with your engine machinist before purchasing.\u003c\/div\u003e\n\u003chr class=\"wl-divider\"\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cdiv class=\"wl-fitment\"\u003e\n\u003cp\u003eNissan 350Z Z33 DE · 2003 to 2006 (VQ35DE, reground crank only)\u003c\/p\u003e\n\u003cp\u003eNissan Skyline V35 · VQ35DE variants, reground crank only\u003c\/p\u003e\n\u003cp\u003eNissan Stagea M35 · VQ35DE variants, reground crank only\u003c\/p\u003e\n\u003cp\u003eInfiniti G35 · VQ35DE variants, reground crank only\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 0.88em; color: #6b7280; margin-top: 6px;\"\u003eFits the VQ35DE engine only with a crankshaft reground 0.25mm undersize. Does not fit the 2007 to 2008 350Z HR with the VQ35HR engine. Please confirm crankshaft size with your machinist before ordering.\u003c\/p\u003e\n\u003cdiv class=\"wl-closing\"\u003e\n\u003cp\u003e\u003cstrong\u003eIf your crank is standard size, see the ACL 4M2633H-STD or 4M2633HX-STD instead.\u003c\/strong\u003e Pair with the ACL Race Series rod bearing set in the matching oversize for a complete crank bearing refresh on the rebuilt VQ35DE.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Zend It Auto Parts","offers":[{"title":"Default Title","offer_id":49065992290532,"sku":"4M2633H-.25","price":171.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/2679\/0884\/files\/4M2633H-.25.jpg?v=1780372092","url":"https:\/\/zenditautoparts.com\/products\/acl-race-series-main-bearing-set-0-25mm-oversize-4m2633h-25-350z-de-03-06","provider":"Zend It Auto Parts","version":"1.0","type":"link"}