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NB139922 Turbocharger Repair Kit for Isuzu 4TNA (VZ21)

Aftermarket repair kit NB139922 for Isuzu 4TNA (VZ21) turbocharger application. Includes components for turbo model RHB31CW-30004CP7NRBRDL245AZ. Verify engine and vehicle fitment before ordering.

Orders without stock ship approximately 60 days after ordering. Estimated ship date if ordered today: .

Type Repair kit On backorder — orders accepted Part # NB139922 Models RHB31CW-30004CP7NRBRDL245AZ Weight 0.50 kg Packing 30*20*4
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12-Month Warranty Worldwide shipping excluding Canada and China. OEM-Grade Quality

The NB139922 is an aftermarket repair kit for the RHB31CW-30004CP7NRBRDL245AZ turbocharger, designed as a replacement application for Isuzu 4TNA (VZ21) engines. This kit supports rebuilders and fleet parts buyers by providing internal components for turbocharger maintenance, with technical fitment support available to verify specific vehicle and engine configurations before ordering.

Key Specifications

  • Part Number: NB139922
  • Product Type: Repair kit
  • Turbo Model: RHB31CW-30004CP7NRBRDL245AZ
  • Application Clue: Isuzu 4TNA (VZ21)
  • Packing Dimensions: 30*20*4 cm
  • Gross Weight: 0.5 kg
  • OEM Reference Numbers: None supplied

This section lists the factual identifiers and physical attributes for the NB139922 repair kit. Use these details to cross-check your inventory records and verify the specific turbo model RHB31CW-30004CP7NRBRDL245AZ before placing an order.

Application & Compatibility

Source application path clues for buyer verification. These are source category/application paths, not confirmed fitment claims:

  • SUZUKI > ISUZU 4TNA (VZ21)

The NB139922 repair kit is listed for the Isuzu 4TNA (VZ21) engine application, associated with the RHB31CW-30004CP7NRBRDL245AZ turbo model. This reference application serves as a primary clue for identifying the correct replacement components. Buyers should verify the specific vehicle model, production year, and turbo configuration against their inventory records. Since no OEM reference numbers are supplied in the input, cross-checking the part number NB139922 and engine code is essential to confirm fitment. Treat this application path as a reference point rather than a universal compatibility claim. Verify all details before ordering to ensure the kit matches your specific unit.

Technical Notes

The RHB31CW-30004CP7NRBRDL245AZ turbo model is associated with the Isuzu 4TNA (VZ21) engine application. No specific VNT, variable-geometry, or oil-cooled system details are supplied for this unit, so do not assume these configurations without verification. Buyers should confirm the exact turbo model and engine code against their specific vehicle before ordering. This repair kit is intended for internal component replacement; verify that the housing and shaft are intact and suitable for rebuild. Use the part number NB139922 as the primary identifier for technical fitment support inquiries.

B2B Supply

LeadTurbo supports B2B buyers, repair shops, and distributors with volume pricing and worldwide shipping for the NB139922 repair kit. Technical fitment support is available to help verify the RHB31CW-30004CP7NRBRDL245AZ turbo model against your specific Isuzu 4TNA (VZ21) application. Use the compact 30*20*4 cm packing and 0.5 kg gross weight for efficient logistics planning. Contact our team to confirm part number, engine code, and vehicle details before placing an order.

Product FAQ

Choose this NB139922 repair kit when the housing and shaft are intact but internal seals or bearings need replacement. It is a cost-effective alternative for rebuilders handling Isuzu 4TNA (VZ21) applications.

The supplied application path lists SUZUKI > ISUZU 4TNA (VZ21). Use this engine code as a primary clue, but verify the specific vehicle model and production year against your inventory.

Treat the Isuzu 4TNA (VZ21) clue as a reference application. Do not assume universal fitment across all Suzuki or Isuzu models without verifying the specific turbo model RHB31CW-30004CP7NRBRDL245AZ.

The repair kit ships in a 30*20*4 cm carton with a gross weight of 0.5 kg. This compact packaging supports efficient B2B logistics and worldwide shipping.

SUZUKI and other product, brand and model names are the property of their respective owners and are used for reference and application-lookup only. LeadTurbo is not affiliated with or endorsed by SUZUKI.

Compatibility Verify part number NB139922, engine code 4TNA (VZ21), vehicle application, and turbo configuration before ordering. This is an aftermarket replacement application; confirm fitment with your specific unit.

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Frequently Asked Questions

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Complete turbo units designed for rigorous heavy-duty use where OEM units may fall short.

CHRA Core

CHRA / Core Assemblies

Brand-new compatible CHRA cores — like-new performance at a fraction of replacement cost.

Turbine Wheel

Turbine Wheels & Shafts

Precision-balanced turbine shafts engineered from inside out for superior durability.

Turbine Housing

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Silicon-molybdenum (Si-Mo) nodular cast iron — engineered for extreme heat resistance.

Compressor Housing

Compressor Housings

OEM-matched geometry and surface finish — advanced casting and machining for perfect fitment.

Bearing Housing

Bearing Housings

Rock-solid platform engineered for high-output rebuilds — the foundation for performance.

Compressor Wheels

Compressor Wheels

Aluminum, stainless steel, or titanium alloys — precision machined for superior responsiveness.

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