Product Overview
The JFZ276C8 alternator (OE JFZ276C8, JFZ2711) is a new, OE-spec replacement unit built for Jianghuai trucks and vehicles using a 24V electrical system. Rated at 28V 70A output with a B85 1PK pulley, this alternator reliably recharges the battery and powers the electrical loads so your Jianghuai keeps running even under heavy duty-vehicle loads.
This aftermarket unit matches the original alternator requirements of the JFZ-series cross-reference. It is a factory-grade replacement, stocked in-house, backed by a 1-year warranty with a 10-day dispatch lead time. Consistent output under load keeps battery voltage stable and protects your starting and charging system.
Key physical specs: net weight 6.65 kg, gross weight 7.85 kg, supplied in a single-unit inner box with neutral kraft outer packaging.
Alternator For Jianghuai Application
Jianghuai trucks rely on a correctly matched alternator so the battery stays charged and all electrical loads run reliably. This 28V 70A unit is engineered to match the original assembly for a straightforward bolt-on replacement.
The alternator output voltage, current rating, pulley size and mounting configuration must match the original alternator. A mismatched alternator leads to undercharge, overcharge or belt alignment problems. Always confirm your vehicle model, engine and old alternator OE number before placing your order.
Technical Specifications
| Parameter | Specification |
|---|
| Primary OE number | JFZ276C8 |
| Full cross-reference | JFZ2711, 4105Q-44D1P-21.30 |
| Voltage | 24V system / 28V rated output |
| Current | 70A |
| Pulley | B85, 1PK |
| Application | Jianghuai trucks and 24V-system vehicles |
| Quality | New |
| Warranty | 1 year |
| Net weight | 6.65 kg |
| Gross weight | 7.85 kg |
| Lead time | 10 days, in stock |
Engine Compatibility and Cross Reference
This alternator fits Jianghuai trucks and vehicles using a 24V electrical system. Do not rely solely on the vehicle application for fitment validation; always verify the old alternator OE number, output rating, pulley type and mounting before ordering.
| Equipment | Application | Typical Models |
|---|
| Jianghuai | Trucks | 24V electrical system vehicles |
| Alternator family | JFZ-series | JFZ276C8, JFZ2711 |
| Engine variant | Diesel | 4105Q-44D1P engine |
Multiple OE numbers exist across different production batches, brand designations and market specifications for this same alternator. If your original alternator carries any one of the listed part numbers and the same output rating, the JFZ276C8-series unit is a direct replacement.
What to Look for in a Replacement
Follow these six verification steps before placing your order to avoid wrong-part returns:
1. Check the rating of the original alternator: confirm it is a 24V system with 28V / 70A output. Different voltage or current ratings are not interchangeable.
2. Check the pulley: this unit has a B85 1PK pulley. Confirm it matches your belt system.
3. Confirm the mounting pattern and wiring layout match your Jianghuai alternator bracket.
4. Verify the old alternator OE number appears in the cross-reference list above.
5. Confirm your vehicle, engine and alternator model before ordering.
6. Weight cross-check: a genuine matching unit weighs about 6.65 kg net; a significant weight difference indicates the wrong model or low-grade build quality.
Application Scenarios
Jianghuai truck and fleet owners replacing a failed alternator.
Auto-electric specialists servicing charging faults, undercharging or dim-lighting issues.
Wholesale auto parts distributors and e-commerce sellers stocking Jianghuai alternators.
Repair shops servicing Chinese commercial vehicles and trucks.
Maintenance teams restoring charging systems to factory-standard condition.
Note: Alternator replacement is an electrical-system repair operation. It must be performed with the battery disconnected and the correct torque settings to avoid damaging the charging system.
Alternator Replacement Procedure
Alternator replacement must comply with the assembly specifications for low-voltage electrical equipment and the general requirements for engine charging systems. The following is a standardized replacement procedure, including compatibility inspection and practical precautions, to ensure stable operation after installation.
Preparation and Safety
Disconnect the battery: Always disconnect the battery negative terminal first to prevent short circuits and electrical injury during removal.
Prepare the correct sockets, torque wrench, and the new alternator. Confirm the new unit matches the old one in rating, pulley and mounting.
Removal of the Old Alternator
Disconnect the wiring harness and the B+ terminal from the alternator, noting the position and routing of each wire.
Release the belt tension and remove the drive belt from the pulley.
Remove the mounting bolts securing the alternator to the bracket, then lower the alternator out.
Installation of the New Alternator
Fit the new alternator into position and torque the mounting bolts to the specification for your application (approximately 35 +/- 5 Nm).
Reconnect the B+ terminal (torque approximately 8 +/- 2 Nm) and the harness plug.
Reinstall and tension the drive belt to the correct specification for your Jianghuai application.
Post-Installation Checks
Reconnect the battery and start the engine. Measure charging voltage across the battery with the engine running.
For a 24V system, confirm a steady charging voltage of approximately 28V; for a 14V system, confirm approximately 14V.
Check for abnormal belt noise, loose mounting and correct belt tension after a short run.
Focus on four core aspects during replacement: low-voltage electrical safety, belt tension, torque control and wiring correctness. Forbidden: connect the battery while installing or let the B+ terminal touch the chassis (short circuit). Confirm correct belt tension and alignment to prevent slippage, belt squeal and premature pulley or belt wear.
FAQ
Q: Does this alternator fit my Jianghuai vehicle?
A: This JFZ276C8-series alternator is built for Jianghuai trucks and 24V-system vehicles. Always confirm your engine, old alternator OE number, output rating and pulley before ordering.
Q: My old alternator shows OE number JFZ2711 or 4105Q-44D1P-21.30. Will JFZ276C8 work?
A: Yes. These OE numbers belong to the same Jianghuai alternator family, differing only by production batch or market designation, so the JFZ276C8-series unit serves as a direct replacement when the rating matches.
Q: Is this a new or remanufactured alternator?
A: This unit is a new alternator, built to original specifications and backed by a 1-year warranty.
Q: Can I install this alternator myself?
A: Yes, with basic hand tools and care. Always disconnect the battery first, tension the belt correctly, torque the mounting bolts and B+ terminal correctly, and confirm stable charging voltage. If unsure, use a professional technician.
Q: What is your warranty and lead time?
A: Goods are in stock with a 10-day dispatch lead time. A 1-year warranty applies from installation date; it excludes damage caused by improper installation, wiring errors or charging-system faults.
In Practice
For technicians working on Jianghuai charging systems: before committing to an alternator replacement, bench-test the old alternator and check the battery, cables, belt and wiring. A weak battery, corroded cable, loose belt or faulty voltage regulator can mimic alternator-failure symptoms, so do not replace the alternator blindly. Always disconnect the battery before commencing removal.
Photograph and note the routing of the harness and the B+ terminal during removal to avoid mis-wiring. Confirm the new alternator is 28V 70A with a B85 1PK pulley and that it fits the Jianghuai bracket before installation. Torque the B+ terminal to about 8 +/- 2 Nm and the mounting bolts to about 35 +/- 5 Nm, then start the engine and verify a steady charging voltage of approximately 28V.
If you are not confident in charging-system diagnosis, entrust the alternator replacement to a professional technician. Improper wiring or belt alignment risks damaging the new alternator, the belt or the battery.
References
The replacement method and related precautions are standardized content summarized and integrated based on the universal assembly specifications of engine charging systems, industry standards for low-voltage alternator replacement of the same specification, and practical experience in the automotive repair field. Equipment applications are compiled from original-equipment fitment data for the JFZ276C8-series alternator family covering Jianghuai trucks.
About the Author
This article was written by the senior auto-electric technician team at Nuojin Auto Parts, with over 15 years of hands-on experience in automotive charging and starting systems.
Our engineers specialise in Japanese, European, Korean, American and Chinese vehicle charging-system diagnostics, aftermarket alternator and starter-motor cross-referencing, and factory-spec electrical-system restoration for global markets. Every product listing on this site is backed by real bench-tested fitment data and first-hand repair experience, not just copied from manufacturer manuals.
If you have any question about this alternator or your charging-system repair, contact our technical team and we will help you confirm the correct part for your application.
Nuojin Auto Parts is a professional starter and alternator supplier based in Hejian, Hebei, China, running factory-grade bench testing on every production batch. We support distributors, wholesalers and repair shops worldwide with correct-fit sourcing, a 1-year warranty and responsive after-sales technical assistance.
