3529032 HT3B Turbocharger for Cummins NT855 / NTA855 Engine

3529032 HT3B Turbocharger for Cummins NT855 / NTA855 Engine

If your engine is showing low boost, black smoke, slow throttle response, abnormal turbo noise, or oil leakage around the compressor / turbine side, the turbocharger may be worn or damaged. This 3529032 turbocharger is supplied as an aftermarket replacement for selected Cummins 14L 855 family diesel engine applications.

Publicly available Cummins information confirms the 855 engine family as a 14L inline 6-cylinder platform, and industry cross-reference catalogs commonly associate 3529032 with HT3B / BHT3B turbocharger configurations used on NT855 / NTA855 related applications. Cross-reference numbers commonly seen in professional turbo catalogs include 3803108, 3803108RX, 4033815 and 4033815H.

Function & Typical Symptoms

A turbocharger uses exhaust gas energy to increase intake air pressure, helping the engine maintain power, combustion efficiency and throttle response. When the turbocharger wears, common symptoms may include:

- loss of power under load
- excessive black smoke
- slow boost build-up
- whining or scraping noise from the turbo
- oil leakage into the intake or exhaust side

Part Numbers & Fitment Notes

Part No.: 3529032
Turbo Model: HT3B / BHT3B
Related Numbers Often Listed in Cross Reference Catalogs: 3803108, 3803108RX, 4033815, 4033815H, 167713, 3527046, 2839432, 4049440

Application Note:
This product page is built around part number and engine-family fitment. Turbocharger configurations may vary by engine CPL, build year, machine installation and regional catalog. Please confirm by old turbo nameplate, engine serial number (ESN), or clear photos before ordering.

Before Replacement: Quick Inspection Checklist

Replacing the turbo without checking the root cause can lead to repeat failure. Please inspect:

1. Air filter and intake hose for blockage or cracks
2. Oil feed line and oil return line for restriction or carbon build-up
3. Intercooler / charge pipe for oil pooling
4. Exhaust side for blockage or excessive back pressure
5. Crankcase ventilation for abnormal blow-by

Installation Notes

- Pre-lube the turbo with clean engine oil before first start
- Replace engine oil and oil filter during installation
- Prime the oil system according to your mechanic’s procedure
- Let the engine idle for several minutes before load
- Avoid immediate shutdown after heavy-duty operation

Quality Control & Supply

Each unit is checked for appearance and basic fitment consistency before shipment. We support supply for distributors, repair shops and fleet buyers. For fast quotation, please send:

- part number
- engine model
- engine serial number (ESN)
- nameplate photos
- quantity required

Packaging & Worldwide Shipping

MOQ：1 Piece
Packing：Carton / export packing / wooden case if required
Delivery：Express, air, sea
Price：Negotiation
Supply Ability：Stable bulk supply for long-term cooperation

FAQ

Q1: Is 3529032 a genuine Cummins / Holset turbocharger?

A: This page should describe it as an aftermarket replacement supplied by Topvelsun. OEM numbers are used for identification and fitment reference only unless the actual product is sold as genuine OEM with supporting proof.

Q2: What engine does 3529032 commonly match?

A: Public cross-reference catalogs commonly associate 3529032 with HT3B / BHT3B turbocharger configurations for Cummins NT855 / NTA855 related applications. Final confirmation should be based on turbo nameplate and engine serial number.

Q3: Can I order only by machine model?

A: We recommend confirming by part number, turbo nameplate and engine serial number because turbocharger configurations may differ by engine CPL, year and market.

Q4: What numbers may be seen as related references?

A: Commonly listed related references include 3803108, 3803108RX, 4033815, 4033815H, 167713, 3527046, 2839432 and 4049440.