ACL Race Series 0.25mm Oversize Main Bearing Set – 350Z DE – 4M2633H-.25

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$225.00
$225.00
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ACL 4M2633H-.25 0.25MM OVERSIZE MAIN BEARINGS 350Z 2003–2006 · VQ35DE

Description

ACL Race Series 4M2633H-.25 main bearings are designed for Nissan VQ35DE engines with a crankshaft that has been correctly machined 0.25mm undersize. The F780 tri-metal construction provides a performance-focused bearing solution for correctly prepared road and motorsport engine builds.

Fitment

Nissan 350Z Coupe and Roadster
  • 2003–2005 · VQ35DE
  • 2005–2006 · VQ35DE Rev-Up
  • For crankshafts machined 0.25mm undersize to accept 0.25mm oversize main bearings.
  • Suitable for correctly prepared VQ35DE engine rebuilds using the original main-bearing configuration.
Does not fit: Standard-size crankshafts, VQ35HR engines or VQ37VHR engines.

Product Details

Manufacturer ACL
Part Number 4M2633H-.25
Series Race Series
Product Type Main bearing set
Engine Application Nissan VQ35DE
Bearing Size 0.25mm oversize
Crankshaft Requirement Crankshaft journals machined 0.25mm undersize
Material F780 tri-metal
Bearing Halves Upper and lower
Contents One complete main bearing set for one engine

Why Choose This Product?

  • ACL Race Series construction developed for performance engine applications.
  • Precision-manufactured bearing dimensions support consistent clearances.
  • Correct 0.25mm oversize option for a properly machined VQ35DE crankshaft.
Please Check Before Ordering

The “-.25” designation means these bearings are 0.25mm oversize and require a crankshaft machined to the corresponding undersize. They must not be fitted to a standard-size crankshaft.

Have the crankshaft journal diameter and required bearing size confirmed before purchasing. Bearing size cannot be selected solely from the vehicle model or engine code.

Related Parts

ACL 4M2633H-STD Standard-Size Main Bearings For VQ35DE crankshafts that remain at the factory standard journal size.
View 4M2633H-STD main bearings
ACL 4M2633HX-STD Extra-Clearance Main Bearings Standard-size Race Series bearings manufactured to provide additional oil clearance for a correctly specified engine build.
View 4M2633HX-STD main bearings
ACL Race Series 0.25mm Oversize Main Bearing Set – 350Z DE – 4M2633H-.25

$225.00

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