Do dump trucks need a 360 degree thrust bearing turbocharger?

Yes. Dump trucks operating on dirt, gravel, or construction sites require a 360-degree axial bearing turbocharger at ANY horsepower level. Restricted air filters on dump trucks create pressure differentials that cause standard bearing turbos to leak oil into the intercooler side. If you are repeatedly replacing your 171702 turbo due to oil leaks on the air intake side, you need a 360-degree bearing turbo like the Zeki T4131-01 ($900) or T4131-02 ($963).

What turbo is recommended for a DDC V 515HP conversion to 12.7L Detroit?

For a DDC V 515HP to 12.7L Detroit conversion, ProTurbo highly recommends the Zeki T4131-02 ($963) or the BorgWarner S475SX-E (part number 14969880029, $1,080 — currently in stock). Both are made in the USA, include 360-degree thrust bearings and upgraded compressor wheels, and are rated for the 515HP application. Contact ProTurbo at 512-992-0000 in English or Español for specific guidance on your conversion.

What is a 360 degree axial bearing and why does it matter?

A 360-degree axial (thrust) bearing provides full-circumference load distribution around the turbocharger shaft, compared to partial-coverage standard bearings. This design handles the axial forces on the shaft more evenly, reducing wear and preventing oil leakage under restricted airflow conditions. For dump trucks, off-road vehicles, and high-HP applications, the 360-degree bearing is required for reliable long-term operation. ProTurbo carries 360-degree bearing turbos starting at $900.

How do I identify my Detroit Series 60 engine horsepower?

Detroit Series 60 engines came in 370, 430, 450, 470, and 475HP variants. The DDC V (Detroit Diesel Corporation Velocity) variant runs 515HP. You can identify your engine's HP using the Engine Serial Number (ESN). Contact ProTurbo at 512-992-0000 or sales@proturbo.us — the team can identify your exact engine spec from the ESN in English or Spanish.

Detroit S60 Turbo Selection Guide

Choosing The Right Turbo for My Detroit 12.7/14.0L

This guide will help you navigate the many different options available for Detroit S60, specially with current trends of non VGT turbocharger usage.

Free Selection Guide 360° Axial Bearing Explained Application-Based Recommendation Expert Support Available

What Type of Vehicle Do You Own?

Select your vehicle type below to receive a personalized turbocharger recommendation.

Dump Truck

Heavy Duty / Off-Road

Dump Truck

Vehicle used to carry dirt/rock debris or use in dirt roads. Either 12.7 or 14.0L engine.

12.7L or 14.0L

Flat Bed

Highway / Long Haul

Flat Bed / Dry Cargo

Vehicle used for dry cargo, flat bed, mostly highway usage. Either 12.7 or 14.0L engine.

12.7L or 14.0L

Your Recommendation

Why The Use of The Vehicle Matters?

Understanding your application is critical to choosing the correct turbocharger components.

The usage matters because of a specific component on the turbocharger called Thrust Bearing or Axial Bearing. The 360-degree axial bearing provides better support to the turbocharger shaft compared to standard bearings.

This comprehensive support helps distribute the load more evenly across the bearing surface, leading to less wear and tear and a significantly longer lifespan for the bearing and the turbocharger as a whole.

Dump trucks and vehicles that drive on dirt roads are HIGHLY recommended to purchase a 360 Degree thrust bearing because these turbos will be working with a more restricted air filter than a dry cargo vehicle.

With the popularity of the usage of the turbocharger 171702 from Borgwarner for many different applications — not only Detroit 12.7 but 14.0L and even Cummins engines — we have seen an increase in complaints for oil leakage to the air intake side (intercooler side).

These problems are almost always found in dump trucks and engine modifications from 14.0 to 12.7L conversion. To avoid this problem you must purchase a 360-degree axial bearing and a turbocharger capable of the horsepower that the engine is putting out.

Bearing Load Distribution

360-degree axial bearing provides superior load distribution vs standard partial-coverage bearings

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Oil Leakage Warning — Borgwarner 171702

With the increased popularity of the Borgwarner 171702 turbocharger across multiple applications (Detroit 12.7L, 14.0L, and Cummins engines), we have seen a rise in complaints for oil leakage to the air intake/intercooler side. This problem is almost always found in dump trucks and engine modifications from 14.0 to 12.7L conversion. To avoid this, you must purchase a 360-degree axial bearing and a turbocharger capable of the horsepower that the engine is producing.

Thrust Bearing Comparison

Understand which bearing type is right for your application.

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Standard Bearing

Partial-coverage axial bearing. Suitable for highway applications with clean air filters and consistent load. Lower cost option for standard dry cargo vehicles.

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360° Axial Bearing

Full 360-degree coverage provides even load distribution across the entire shaft. Significantly longer lifespan, essential for dump trucks, dirt road vehicles, and 14.0→12.7L conversions.

Feature	Standard Bearing	360° Axial Bearing
Load Distribution	Partial Coverage	Full 360° Coverage
Dump Truck Compatible	NOT RECOMMENDED	HIGHLY RECOMMENDED
Dirt Road / Off-Road Use	NOT RECOMMENDED	RECOMMENDED
Highway / Dry Cargo	SUITABLE	RECOMMENDED
14.0→12.7L Conversion	AVOID	REQUIRED
Restricted Air Filter Use	HIGH RISK	LOW RISK
Oil Leakage Prevention	Standard	Superior
Lifespan	Standard	Significantly Longer

See Why It Matters

Watch our technical breakdown to understand thrust bearing differences and proper turbo selection.

Watch Technical Explanation

Frequently Asked Questions

Common questions about Detroit Series 60 turbocharger selection answered by our experts.

What turbocharger should I use for a Detroit Series 60 12.7L engine? +

For a Detroit S60 12.7L highway truck under 500HP: BorgWarner 171702 or Zeki T4131-01. For dump trucks at any HP: Zeki T4131-01 or T4131-02 with 360° bearing. For over 500HP or DDC V 515HP conversions: Zeki T4131-02 or BorgWarner S475SX-E (14969880029). Call 512-992-0000 with your Engine Serial Number for a precise fit.

Do dump trucks need a 360 degree bearing turbocharger? +

Yes — at ANY horsepower. Dump trucks on dirt/gravel roads restrict their air filters faster

What is the difference between Zeki T4131-01 and T4131-02? +

Both include 360-degree thrust bearings and are assembled in the USA. The T4131-01 has a standard cast compressor wheel (475–550HP). The T4131-02 is upgraded with an 11-blade billet compressor wheel (up to 550HP). For heavy dump truck use

What turbo for DDC V 515HP to 12.7L Detroit conversion? +

ProTurbo highly recommends the Zeki T4131-02 or BorgWarner S475SX-E (14969880029). Both Made in USA

Why does my BorgWarner 171702 keep leaking oil on the air intake side? +

Caused by a restricted air filter combined with the standard thrust bearing. Very common in dump trucks and dirt road vehicles. Fix: replace with a 360-degree bearing turbo — Zeki T4131-01 ($900)

Need Help Choosing?

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