English
This TB31 turbocharger is engineered as an OEM-grade replacement for Cummins 4BT engines, providing stable boost performance for commercial and industrial applications.
It matches OEM numbers Z3900167 and Z3900158, delivering precise fitment for engine rebuilders, parts distributors, and fleet maintenance teams. Built with high-quality materials and strict QC control, this turbo offers long service life, reliable pressure output, and steady performance under heavy-duty conditions—ideal for bulk orders and professional B2B sourcing.
Z3900167 / Z3900158
Elecdurauto
China
IATF 16949 / ISO 9001 / CE / RoHS
50-100 pcs
Brand / Neutral / Customized Packaging
18 Months
| Quantity: | |
|---|---|
Product Description
As a professional B2B buyer—importer, distributor, wholesaler, or fleet-focused workshop—you need a replacement turbocharger that delivers OE-level performance, stable supply, and competitive margins.
Elecdurauto's TB31 Turbocharger (Turbo P/N 717617-0001 / 715267-0001, CHRA code based on Cummins TB31 platform) is engineered as a direct and OE-grade replacement for Cummins references Z3900167 and Z3900158.
Manufactured under strict quality control and high-precision balancing, this model provides:
Reliable bulk supply for long-term programs
Factory-direct pricing designed for distributors
Consistent performance and durability in 4BT applications
OE-level build quality with professional-grade validation
This TB31 turbocharger is widely supplied to rebuilders, engine reman factories, and commercial fleet maintenance operators using Cummins 4BT engines in trucks, loaders, industrial machinery, and generator sets.
| Brand / Platform | Engine Model | Notes / Applications |
|---|---|---|
| Cummins | 4BT | Commercial trucks, mid-duty vehicles |
| Cummins | 4BT Industrial | Construction machinery, loaders |
| Cummins | 4BT Generator Sets | Industrial genset applications |
| Cummins | 4BT Marine / Auxiliary | Light-duty marine auxiliary systems |
| Commercial Truck Platforms | Cummins 4BT | Regional transport, logistics fleet vehicles |
| Construction Equipment | Cummins 4BT | Loaders, compact equipment, forklifts |
| Specification | Details |
|---|---|
| Model | TB31 |
| Turbo P/N | 717617-0001 / 715267-0001 |
| OEM Reference | Z3900167 / Z3900158 |
| Engine Compatibility | Cummins 4BT |
| Cooling | Oil-cooled |
| Bearing Type | Journal bearing / floating bush |
| Max Operating Speed | Up to 150,000+ RPM (TB-series standard) |
| Turbine Wheel Material | High-temperature Ni-based alloy |
| Compressor Wheel Material | High-strength aluminum alloy |
| Boost Characteristics | Calibrated to Cummins 4BT boost parameters |
| Wastegate | Integrated wastegate (application-dependent) |
| Balancing Standard | G2.5 high-speed VSR balancing for rotor assembly |
| Application Type | Commercial trucks, industrial machinery, gensets |
Elecdurauto heavy-duty turbocharger is engineered for demanding environments, delivering stable performance across industrial machinery, construction equipment, and diesel power systems. Built for high-load, long-hour operation, it ensures reliable boost control and extended service life in real working conditions.
Construction Machinery
Industrial Diesel Engines
Agricultural Equipment
Power Generators
Material Handling Equipment
Elecdurauto follows a fully integrated production process to ensure every turbocharger meets strict quality and performance standards. From raw material inspection and CNC machining to automated assembly and dynamic testing, each step is optimized for precision, consistency, and efficiency. This end-to-end system guarantees reliable output for both OEM replacement and aftermarket demand.
Your orders come directly from a production line, not a middleman.
Faster decisions, better quality control, and more stable pricing.
Our factory shares manufacturing systems with global OE brands—
CNC machining, dynamic balancing, CHRA calibration, leakage testing, vibration analysis, and load simulation.
Our replacement turbo is built specifically for:
construction equipment
industrial machinery
agriculture
power systems
These environments demand durability far beyond passenger vehicles.
We support bulk orders, stable stock programs, private-label packing, and long-term supply agreements.
You get OE-level performance + factory-direct pricing, giving you a strong margin advantage in the market.
CHRA core balancing report
VSR test RPM curve screenshot
Turbine/compressor wheel dimensional check
Shaft & bearing surface inspection
Final assembly torque spec check
Packaging inspection before shipment
Material Incoming Quality Control
Precision CNC Machining Cluster
Automated Material Loading Lathe
Three-Axis CMM Inspection
In-Process Quality Monitoring
Automated Assembly Workstation
Functional Testing & Assembly Validation
Turbocharger Performance Test Bench
High-temperature alloys withstand extreme loads found in heavy-duty diesel operations.
Reduce friction, improve spool response, and enhance long-term stability.
Every CHRA is VSR-balanced to OE specifications for smooth, vibration-free operation.
Maintains stable boost levels across varying RPM ranges—critical for industrial-duty usage.
Designed for harsh environments: dust, high load, long idle periods, and temperature cycling.
Our engineering team supported a large industrial fleet operator with a customized heavy-duty turbocharger supply program, covering OE-grade replacements, technical verification, and long-term stocking support. The project reduced their downtime by 37% and stabilized maintenance cycles across multiple engine platforms—proving Elecdurauto’s capability to deliver consistent, high-performance solutions for demanding B2B operations.
Trusted OEM Quality
Precision You Can Trust
Engineered for Reliability
Complete Fit Assurance
Every Detail Verified
Proven Performance Parts
Secure Global Shipping
Ready-to-Install Quality
Because your customers need confidence—and you need fewer after-sales issues.
Elecdurauto provides a 18-month / 50,000 km warranty for the every model under normal operating conditions.
Because downtime costs money.
In-stock items: ship within 3–5 days
Production orders: 15–25 days
Bulk/OEM label orders: confirmed before production
Because MOQ, packaging, and shipping options define your cost structure.
We offer flexible MOQs and factory-direct pricing to maximize your margins.
Elecdurauto operates under a fully audited quality system, backed by IATF 16949, ISO 9001, ISO 14001, and ISO 45001 certifications.
Every turbocharger is produced in compliance with international manufacturing standards, ensuring consistent quality, traceable processes, and reliable performance for global B2B buyers.
We make purchasing simple and risk-free for all B2B buyers:
Fitment check via OE number, engine code, photos, or sample comparison.
Elecdurauto brand box, neutral box, or your private label.
Air freight, sea freight, palletized shipments, LCL/FCL consolidation.
Clear troubleshooting, technical diagrams, installation guidance, failure-analysis reporting.
Yes. This TB31 turbocharger is engineered as a direct-fit, OE-grade replacement for Cummins 4BT engines that use OEM numbers Z3900167 or Z3900158. The mounting points, oil lines, wastegate layout, and boost characteristics match the original specification.
The Cummins 4BT engine—and its TB31 turbocharger platform—is widely used in:
Medium-duty commercial trucks
Construction equipment (loaders, compact machinery, forklifts)
Industrial generator sets
Agricultural machinery
Marine auxiliary applications
This turbocharger is built to withstand long operating hours in heavy-duty environments.
Yes. We supply both:
Complete TB31 turbocharger assemblies
CHRA center housing rotating assemblies (balanced and ready to install)
This helps distributors and workshops reduce repair cost and increase service flexibility.
Each rotor assembly is high-speed VSR balanced to G2.5 or better.
This ensures stable boost, reduced vibration, and longer service life—especially important for engines like the Cummins 4BT that operate under continuous load.
Yes. Many B2B clients—including fleets, rebuilders, and distributors—purchase this TB31 turbo in bulk for long-term maintenance programs.
Stable supply and consistent quality make it suitable for:
Fleets with large numbers of 4BT-powered vehicles
Engine rebuilding factories
Long-term parts distribution channels
Our standard warranty is 18 months from the date of installation (or 30,000 km / 1,000 hours, whichever comes first).
Warranty covers manufacturing defects, material failures, and imbalance-related issues.
Improper lubrication, foreign object damage, or installation errors are not included.
Based on field data, the main causes include:
Insufficient oil supply or contaminated oil
Blocked air filter or restricted airflow
Excessive exhaust temperature from poor fueling
Foreign object damage to turbine/compressor
Incorrect installation or missing gaskets
We offer installation guidelines to help prevent these issues.
Yes. We offer:
OEM number verification (Z3900167 / Z3900158)
Engine model confirmation (Cummins 4BT)
Dimensional drawings, flange types, and CHRA specs
Fitment cross-reference support
This helps distributors reduce returns and ensure accuracy.
Yes. TB31 turbos often cross-reference with several part number variations depending on regional supply chains.
Share your turbo P/N, OEM P/N, or photos, and we will confirm compatibility before shipment.
Yes. We specialize in B2B supply, offering:
Tiered pricing for volume purchases
Neutral, branded, or custom packaging
Stable stock availability for long-term contracts
Options for palletized shipping, export-grade cartons, or reinforced packaging
This ensures importers, distributors, and fleet operators receive consistent, ready-for-resale units.
