Volvo/Mack 3767706RV Holset HE400VG Remanufactured Turbocharger

Precision Remanufacturing

The Turbo Kings remanufactured 3767706RV HE400VG is built on the Holset variable-geometry platform engineered for Volvo and Mack MP-series engines. Every unit undergoes complete core disassembly, media-safe hot tank restoration, surface reconditioning, CHRA precision balancing, and full vane-pact cleaning to restore OEM airflow characteristics. Our process eliminates carbon binding, restores actuator travel tolerances, and ensures stable boost response across all load demands common in regional haul and vocational applications.

Seal Integrity and Flow Efficiency

Each turbo is rebuilt using new journal bearings, thrust components, O-rings, piston rings, seals, and fasteners. The unison ring and sliding nozzle mechanism are resurfaced or replaced to eliminate sticking under heat cycling. All internal clearances are verified against factory Holset VG specifications, allowing the HE400VG to deliver consistent turbine efficiency, fast spool under transient load, and reliable EGR drive pressure — critical for the MP7/MP8 emissions package.

What Makes Turbo Kings Different

Turbo Kings remanufacturing goes beyond standard rebuild practices.
Every HE400VG receives:

• Complete CHRA dynamic balancing at <0.01 g-cm tolerance

• Nozzle pack resurfacing + free-travel verification

• Wastegate/actuation response test on our in-house rig

• Hot-tank cleaning with aluminum-safe chemistry

• Re-machined sealing surfaces for leak-free installation

• Flow validation to ensure the unit meets OE drive-pressure targets

This results in a turbocharger that performs to OEM standards while maintaining the durability expected by fleets running Volvo or Mack powertrains.

Our Process at a Glance

1. Initial Inspection & Core Mapping

2. Hot Tank & Media Cleaning (Aluminum Safe)

3. CHRA Remanufacture & VSR Balancing

4. Nozzle/VGT Assembly Rebuild & Free-Movement Test

5. Housing Resurfacing + Precision Reassembly

6. Final Quality Verification – Leak, Flow, and Movement

Why Fleets and Owner-Operators Trust Turbo Kings

This 3767706RV HE400VG rebuild is engineered for long-haul reliability, stable boost under load, and long-term durability under repeated heat cycles. Each unit is validated to handle OE operating pressures and temperatures, providing a dependable replacement for MP-series platforms used in freight, construction, and municipal fleets.

Reference Numbers

4031002, 4031003, 4031205, 4031239, 40312NX, 40312RX, 4047366, 4047367, 4047368, 4046516, 5328825, 5328826, 5355450, 5355451, 20941931, 20941932, 20941933, 21424404, 21424405, 21424406, 85115989, 85115990, 85115991, 85013027, 85013028, 85013029