
23956 Alternator 12V 120A For Mitsubishi Pajero
Applicable models:Mitsubish Pajero
Reference part number:23956, 23956N, 1800A115, A003TG4679, A3TG4679, 800A1151, 115926, CAL35240, CAL35240AS, CAL35240GS, CAL352400S, CAL35240RS, CAALM4679NW, ALM4679UX, AL35240ES, DRA0393, J5115089, 89215460, 301N21107Z.
| Rated output : | 12V 120A |
| Pulley : | 2PK |
| Size : | 24*18*17single unit inner box |
| Weight : | net weight:5.8KG gross weight:6.05KG |
| Packaging : | Neutral kraft paper packaging |
| Spot/Pre sale : | Spot goods |
| Warranty : | 1 year |
| Product number : |
| Type : | ACgenerator Alternator |
| Specification : | 12V 120A |
| Pulley : | 2PK |
| Brand : | NUOJIN |
| Number : | 1800A115 |
| Quality : | new |
| Delivery time : | 10DAY |





Product Overview
The Lester 23956 alternator (OE 23956, 1800A115, A003TG4679) is a new, OE-spec replacement charging unit built for the Mitsubishi Pajero. Rated at 12V 120A, this alternator supplies stable charging current so the battery is kept fully charged and the electrical system runs reliably, even under heavy electrical loads.
This aftermarket unit matches the original alternator requirements of the Pajero charging system and the 23956-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. Precise OE-matched output keeps dashboard battery warnings clear and avoids overcharging or undercharging.
Key physical specs: net weight 5.8 kg, gross weight 6.05 kg, supplied in a single-unit inner box with neutral kraft outer packaging.
Alternator For Mitsubishi Pajero Application
The Mitsubishi Pajero charging system relies on a correctly matched alternator so the battery is reliably recharged and the electrical system stays stable. This 12V 120A unit is engineered to match the original assembly for a straightforward bolt-on replacement.
Technical Specifications
| Parameter | Specification |
|---|---|
| Primary OE number | 23956 (Lester) |
| Full cross-reference | 23956N, 1800A115, A003TG4679, A3TG4679, 800A1151, 115926, CAL35240, CAL35240AS, CAL35240GS, CAL352400S, CAL35240RS, CAALM4679NW, ALM4679UX, AL35240ES, DRA0393, J5115089, 89215460, 301N21107Z |
| Voltage | 12V |
| Current | 120A |
| Pulley | 2PK |
| Application | Mitsubishi Pajero |
| Quality | New |
| Warranty | 1 year |
| Net weight | 5.8 kg |
| Gross weight | 6.05 kg |
| Lead time | 10 days, in stock |
Engine Compatibility and Cross Reference
This alternator fits the Mitsubishi Pajero. Do not rely solely on the vehicle model for fitment validation; always verify the engine, old alternator OE number, output rating and pulley configuration before ordering.
| Equipment | Application | Typical Models |
|---|---|---|
| Mitsubishi | SUV | Pajero |
| Alternator series | 23956-series | 23956, 23956N |
| Alternator series | 1800A115-series | 1800A115, A003TG4679, A3TG4679 |
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 23956-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 12V 120A. Different voltage or current ratings are not interchangeable.
2. Check the pulley configuration: this unit has a 2PK pulley. Confirm it matches your belt layout.
3. Confirm the mounting pattern and connection layout match your Pajero 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 5.8 kg net; a significant weight difference indicates the wrong model or low-grade build quality.
Application Scenarios
Mitsubishi Pajero owners and independent repair shops replacing a failed alternator.
Auto-electric specialists servicing charging-system faults, low charging output or repeated battery drain.
Wholesale auto parts distributors and e-commerce sellers stocking Mitsubishi alternators.
Long-distance and off-road Pajero owners preparing for reliable overland charging.
Fleet operators maintaining Mitsubishi vehicles.
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 and mounting.
Removal of the Old Alternator
Disconnect the wiring harness and the B+ terminal, noting the position and routing of each wire.
Slacken the drive belt tensioner and remove the belt from the pulley.
Remove the mounting bolts and lift the alternator out, supporting it to avoid damaging the bracket or radiator.
Installation of the New Alternator
Fit the new alternator into the bracket and torque the mounting bolts to the specification for your Pajero application (approximately 35 +/- 5 Nm).
Reinstall the drive belt over the pulley and set the correct belt tension.
Reconnect the B+ terminal (torque approximately 8 +/- 2 Nm) and the harness plug.
Post-Installation Checks
Reconnect the battery and start the engine. Measure charging voltage at the battery terminals, typically about 13.8-14.8V for a 12V system with the engine running.
Check for belt slip, abnormal noise and warning-light behaviour. Confirm the battery charge returns to normal after a drive cycle.
FAQ
Q: Does this alternator fit my Mitsubishi Pajero?
A: This 23956-series alternator is built for the Mitsubishi Pajero. Always confirm your engine, old alternator OE number and output rating before ordering.
Q: My old alternator shows OE number 1800A115 or A003TG4679. Will 23956 work?
A: Yes. These OE numbers belong to the same alternator family, differing only by brand designation or production revision, so the 23956-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, torque the mounting bolts and B+ terminal correctly, and set the correct belt tension. 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 Mitsubishi Pajero charging systems: before committing to an alternator replacement, bench-test the old alternator and check the battery, belt and wiring. A faulty battery, slipping belt, damaged voltage regulator or corroded wiring 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 12V 120A with a 2PK pulley and that it fits the Pajero bracket before installation. Set the correct belt tension, torque the B+ terminal to about 8 +/- 2 Nm and the mounting bolts to about 35 +/- 5 Nm, then verify charging voltage with the engine running.
References
The replacement method and related precautions are standardized content summarized and integrated based on the universal assembly specifications of Mitsubishi Pajero 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 23956-series alternator family covering the Mitsubishi Pajero.
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.

