HE431VE Rebuild Kit – Fully CNC with Upgraded Thrust Bearings

Bring your Cummins X15 HE431VE turbocharger back to life with this complete, high-performance rebuild kit engineered for durability, balance, and OEM-level precision.

This kit features fully CNC-machined components for consistent fit and lasting quality. At the heart of the kit is an upgraded 360-degree thrust bearing, which provides full-circle lubrication and significantly improved load handling over standard 270-degree bearings — ideal for high-boost, high-demand applications.

Kit Contents:

• 3 Back Plate Bolts with Integrated Seals
• 1 Thrust Bearing (360-degree upgrade)
• 1 Thrust Collar
• 1 Thrust Spacer
• 2 Compressor Side Piston Ring Seals
• 2 Turbine Side Piston Ring Seals
• 2 Journal Bearings with 4 Retainer Snap Rings
• 1 Compressor Housing O-Ring
• 1 Bearing Housing O-Ring
• 1 Shaft Nut
• 2 Turbo Clamp Nuts
• 3 Oil Seals for VGT & Crossshaft Applications
• 1 Freeze Plug

Key Features:

• Fully CNC-Machined Parts: Ensures exact tolerances, long-term durability, and optimal turbo balance.
• 360° Thrust Bearing Upgrade: Full-circle lubrication provides superior thrust capacity — essential for extended turbo life and performance under high boost.
• OEM-Level Rebuild Solution: Restore your turbo without needing to replace the center, compressor, or turbine housings.
• Complete Package: Every essential internal component is included for a thorough and professional rebuild.

This HE431VE rebuild kit is the trusted solution for performance shops, diesel techs, and heavy-duty operators seeking a cost-effective yet premium restoration option.

Note: Gasket/seal color may vary from photographs
California buyers: Sales tax applies

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About This Holset HE431VE Turbo Rebuild Kit

The Holset HE431VE is a variable geometry turbocharger used across Cummins mid-to-large diesel engine applications, delivering the wide operating range required for on-highway and vocational use. The VGT vane mechanism builds strong low-RPM boost for drivability while maintaining airflow efficiency at highway speeds — but that sophisticated mechanism also introduces more wear points than a fixed-geometry unit. This CNC rebuild kit addresses the most common failure modes: thrust bearing collapse, journal bearing wear from oil contamination, and seal degradation causing oil consumption.

What Is Included

• CNC-machined journal bearing set
• Upgraded thrust bearing assembly — hardened alloy construction
• Full seal kit: piston rings, O-rings, gaskets
• Snap rings and retaining hardware

Why the Thrust Bearing Upgrade Matters

The HE431VE thrust bearing absorbs axial forces from the variable geometry actuator and compressor surge loads simultaneously. Standard thrust packages on high-mileage units frequently show wear as grooved bearing surfaces, which leads to shaft play and eventual compressor wheel contact with the housing. The upgraded thrust bearing in this kit uses harder alloy with tighter surface finish, eliminating that failure mode.

When to Rebuild vs. Replace

A remanufactured HE431VE typically costs $1,500–$3,000. Rebuilding your existing core with a quality kit is the most cost-effective path when the turbine housing and compressor housing are still serviceable. PT Turbo has specialized in Holset turbocharger rebuilds since 1978. Our San Bernardino shop can handle a complete professional rebuild if you prefer — call with your OEM part number and we will confirm fitment and pricing.

Weighing a rebuild kit against a remanufactured exchange unit? Read our breakdown of OEM vs remanufactured turbochargers to help make the call.