HE451VE Rebuild Kit – Fully CNC with Upgraded Thrust Bearings

Restore OEM performance and efficiency to your Cummins X15 HE451VE turbocharger with this complete, precision-engineered rebuild kit.

Designed for professional-grade results, this kit includes fully CNC-machined components for precise fitment and long-lasting durability. At the heart of the kit is an upgraded 360-degree thrust bearing, offering full-circle lubrication and significantly increased thrust capacity over standard 270-degree bearings — a must-have for high-boost and high-load environments.

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:

• Precision CNC-Machined Components: Engineered for perfect fit and repeatable performance — essential for long-term turbo reliability.
• 360° Thrust Bearing Upgrade: Improved thrust load capacity, ideal for high-boost and performance builds.
• OEM-Compatible Quality: Rebuild your turbo without replacing the center, turbine, or compressor housings.
• All-Inclusive Kit: Includes every internal part needed for a full turbocharger rebuild — no extras required.

This HE451VE rebuild kit is a dependable and cost-effective solution trusted by diesel professionals, fleet technicians, and performance tuners alike.

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

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About This Holset HE451VE Turbo Rebuild Kit

The Holset HE451VE is the primary variable geometry turbocharger on the Cummins ISX engine family, found in long-haul semi-trucks, motorhomes, and heavy construction equipment across North America. The ISX is built for million-mile service, and the HE451VE is expected to last accordingly. When it does wear — typically from oil contamination or extended high-mileage operation — a professional-grade rebuild kit is the most economical path back to full performance. This fully CNC kit addresses all primary wear points simultaneously.

Kit Contents

• CNC-machined journal bearings — compressor and turbine side
• Upgraded thrust bearing and thrust collar
• Piston ring seals — compressor and turbine
• O-rings, gaskets, and snap rings
• Full hardware set

Common HE451VE Failure Symptoms

Oil consumption and blue exhaust smoke point to failed piston ring seals, often caused by worn journal bearings allowing shaft whip. Audible whine or chirping under boost indicates journal bearing wear. Shaft play detectable by hand with the turbo removed confirms bearing failure and demands immediate rebuild before wheel contact damage occurs. This kit addresses all of these root causes rather than chasing symptoms one at a time.

PT Turbo — Your ISX Turbo Specialist

Since 1978, PT Turbo has specialized in Holset turbocharger rebuilds out of our San Bernardino, California facility. We stock HE451VE cores and components, and can perform a complete professional rebuild with balancing and inspection if you prefer to ship your core to us. Contact us with your OEM part number to confirm fitment before ordering.

Not sure whether to rebuild or buy a remanufactured unit? Our guide to OEM vs remanufactured turbochargers covers the cost and quality trade-offs.