King MB4058XP XP Series Main Bearings for 03-08 Nissan 350Z / G35 VQ35DE (STD)

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In Stock: 38

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Product Specification:

SKU:KINGMB4058XP

MPN: MB4058XP

UPC: 611500553127

Weight: 0.7 lb

Inventory: 38

Type: Bearings

Vehicle Fitment

2003-2008 Nissan 350Z (3.5 L VQ35DE)
2003-2007 Infiniti G35 Coupe/Sedan (3.5 L VQ35DE)
2003-2006 Nissan Z-Car models using the VQ35DE engine (e.g. Z33 chassis)

Fitment Notes

STD main bearing size (no undersize or oversize) unless part variant indicates deviation like ".026".
XP-Series bearings intended for high performance or racing applications; ensure oil clearances and crankshaft condition are inspected.
Grooved bearing design for improved oil distribution; requires properly machined bearing housing.

Features

XP-Series race specification tri-metal main bearings with pMaxBlack overlay for enhanced wear resistance.
Grooved upper halves (full groove) help stabilize oil film and increase oil flow under high load.
High fatigue strength via hardened surface layering for forced induction or high rev applications.
Manufactured with tight wall thickness tolerances to minimize variation between shell halves.
Designed to reduce bearing taper, improve load distribution, and limit oil film disruption.

Specifications

Part Number: MB4058XP
Engine: Nissan VQ35DE, 24-valve 3.5 L V6
Bore Size: Standard (STD)
Construction: Tri-metal with copper/lead intermediate, pMaxBlack overlay
Groove: Full upper groove style
Quantity: Set of 4 mains (upper & lower halves)

Included Components

4x Main bearing upper halves (STD size)
4x Main bearing lower halves (STD size)

Product Description

The King MB4058XP main bearing set is a top-tier performance bearing kit for Nissan's VQ35DE engine, featured in the 350Z and G35 (2003-2008). With its XP-Series construction and pMaxBlack overlay, these bearings offer enhanced wear resistance, durability, and oil film stability--ideal for high RPM, boosted, or otherwise demanding use.

Featuring a full upper groove and tightly controlled shell thickness, these STD size mains deliver reliable lubrication, reduced vibration, and more consistent engine behavior under load. Perfect for rebuilds, upgrades, or aggressive driving where bearing reliability matters most.