| Parameter | Specification |
| Model | WB2440 / 40SI Type |
| OEM Reference | 61000853 |
| Voltage | 24V |
| Output Current | 160A |
| Mount Type | J180 Short Hinge |
| Rotation | Clockwise (CW) |
| Fan Type | External |
| Regulator Type | Internal (Integrated) |
| Brush Type | Brushless |
| B+ Terminal | 5/16” Bolt |
| Auxiliary Terminals | R, I, Remote Sense |
| Weight | Approx. 14.1 kg (31 lbs) |
| Efficiency | Up to 72% |
| Cooling Method | Air-Cooled |
| Application | Heavy Duty Trucks, Earthmoving Equipment, Industrial Engines |
Key Features of the WB2440 40SI 24V 160A Heavy Duty Alternator
Heavy-Duty Brushless Design
The WB2440 uses a brushless architecture, eliminating wear components and extending service life under continuous load.
High-Efficiency Output
Delivers 160A continuous charging with up to 72% energy efficiency, reducing engine load and improving fuel economy for fleet operations.
Reliable in Harsh Conditions
Built with reinforced bearings, sealed housing, and external fan cooling to handle dust, vibration, and extreme temperatures in construction and mining environments.
Remote Sense for Stable Voltage
Equipped with a remote-sense terminal to automatically compensate voltage drop across long wiring harnesses—ensuring batteries and ECUs receive consistent voltage.
Direct Replacement Fit
The J180 short hinge configuration provides a precise fit for many OEM heavy-duty engines and generators, simplifying replacement and installation.
OEM 61000853 WB2440 Alternator Replacement Applications
The WB2440 alternator is a direct-fit replacement for Delco Remy 40SI 24V 160A units and is commonly used on:
Caterpillar® earthmoving and construction equipment
Detroit Diesel® and MTU® industrial engines
Terex® mining trucks
Heavy-duty trucks, buses, and generator sets using 24V systems
WB2440 40SI Alternator Cross Reference & OEM Comparison
| Manufacturer | OEM / Reference No. |
| Delco Remy | 40SI Series – 61000853 |
| Caterpillar | – |
| Terex / MTU / Detroit Diesel | Equivalent Replacement Applications |
40SI 24V 160A Heavy Duty Alternator Installation Notes
Verify Mount Type: Ensure J180 Short Hinge matches your engine bracket.
Check Rotation Direction: This model rotates clockwise.
Connect B+ Terminal Securely: Use insulated ring terminals with torque per OEM spec.
Use Remote Sense (If Equipped): For accurate voltage regulation at the battery bus.
Inspect Belt Tension: Maintain recommended belt alignment and tension to prevent bearing damage.
Quality Standards & Testing for WB2440 Heavy Duty Alternator
Each WB2440 alternator is manufactured to IATF 16949 standards and undergoes:
Dynamic performance testing at full load (24V/160A)
Vibration and heat endurance validation
Regulator response and over-voltage protection checks
Only products that pass 100% end-of-line testing are released for shipment.
Ideal for Heavy-Duty Fleets & Distributors
We support flexible wholesale models to help distributors and importers grow in their market:
Designed for fleet operators, OEM service networks, and aftermarket distributors
Longer lifecycle means fewer replacements and lower downtime
Consistent charging reduces ECU fault codes and battery replacement frequency
Supported by OEM-grade technical documentation and warranty
Why Choose Elecdurauto Heavy-Duty Alternators
Factory overlap with top OE suppliers (Delco Remy, Bosch, Valeo)
Strict quality control and 100% load testing before shipment
Comprehensive SKU coverage across 24V alternators (100A–200A range)
Flexible supply chain with bulk stock for fleet and distributor needs
After-sales technical support from professional alternator engineers
