Alternator 23100-JA02A 12V 110A 6PK Nissan Altima

Product Overview

The 23100-JA02A is a brand-new generator alternator delivering 12V output at 110A with a 6PK pulley, engineered for Nissan Altima, Sentra and Rogue models. This unit, cross-numbered as 23100-JA02B, 23100-JA02C and TG12C032, matches the original charging-system specification for the Nissan platform.

This generator alternator is stocked in-house with a 1-year warranty and 10-day dispatch lead-time. The factory-correct 12V 110A rating ensures reliable charging performance for Nissan Altima, Sentra and Rogue models with moderate to higher electrical loads.

Key physical specs: net weight 6.25 kg, gross weight 6.5 kg, overall dimensions 240 x 180 x 170 mm, supplied inside neutral kraft inner carton.

The Nissan Altima Sentra Rogue Charging Platform

Nissan Altima, Sentra and Rogue models use a 12V charging system with factory-spec generator alternators. The alternator numbering spans the Nissan OE numbers (23100-JA02A, 23100-JA02B, 23100-JA02C, 23100-JA04A, 23100-JA04B, 23100-JA04C), the TG series (TG11S092, TG11S110, TG12C032, TG12C116, TG12S217) and the numbers 260955, 2650364 and 11258, all referring to the same charging-system family.

It is critical to verify the rated output and pulley configuration on your old alternator: this unit is rated at 12V 110A with a 6PK pulley. Alternators with a different output, pulley configuration or mounting pattern are not interchangeable with this unit.

Confirm the mounting flange pattern, terminal positions and bolt spacing against your original alternator before ordering. Always cross-check the OE numbers stamped on your old unit, including the 23100-JA02A family, before placing an order.

Technical Specifications

Compatibility and Cross Reference

According to the original product page, this alternator fits the application families summarized below. Do not rely solely on the brand name for fitment validation; always compare the original part number, mounting holes, pulley configuration and connector configuration before ordering.

Multiple Nissan OE and aftermarket numbers appear across production batches and regional market specifications for this same alternator family. If your original unit bears one of the listed cross-reference numbers, 23100-JA02A serves as a direct drop-in replacement.

What to Look for in a Replacement

Follow these five verification steps before placing your order to avoid wrong-part returns:

• 1. Check the voltage and output rating on your old alternator: confirm it is rated for 12V 110A. Other ratings are not interchangeable.

• 2. Check the pulley configuration: this unit uses a 6PK pulley. Alternators with a different pulley groove count are incompatible.

• 3. Confirm the platform is a Nissan Altima, Sentra or Rogue. Other platforms may use different alternator assemblies.

• 4. Compare the mounting holes, flange pattern and connector configuration with your original alternator, and match OE numbers including the 23100-JA02A family.

• 5. Weight cross-check: genuine matching unit weighs approximately 6.25 kg net; significant weight difference indicates wrong assembly.

Application Scenarios

• Auto repair shops servicing Nissan Altima, Sentra and Rogue models with failed charging systems.

• Auto parts retailers and distributors stocking Nissan alternators for the Japanese vehicle aftermarket.

• Car owners and DIY enthusiasts replacing worn alternators with an original-spec new unit.

• Used car dealers refurbishing pre-owned Nissan models for resale.

• Exporters supplying Nissan alternators to global markets.

FAQ

Q: Which vehicles does this alternator fit?
A: It fits Nissan Altima, Sentra and Rogue models with 12V 110A 6PK alternator applications. Confirm your vehicle, engine and OE number before ordering.

Q: My old alternator shows OE number 23100-JA02B or TG12C032, will 23100-JA02A work?
A: Yes. These numbers belong to the same alternator family for the Nissan platform, differing only by production revision and market specification. It serves as a direct replacement.

Q: What is the correct charging voltage after installation?
A: A healthy 12V charging system should regulate at approximately 13.5-14.5V at the battery terminals with the engine running. If the voltage is out of range, check the alternator, regulator and wiring before further testing.

Q: Can I fit this alternator onto other engine brands?
A: No. Different engine families use different alternator mounting patterns, pulley configurations and terminal layouts. Confirm your engine model before ordering.

Q: What is the correct operation after installation?
A: The charging system should hold battery voltage at the regulated level and keep the charge warning light off under normal load. If the warning light stays on, check the alternator output and wiring connections.

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; warranty excludes damage caused by mis-installation, incorrect wiring, water ingress, short circuit or physical damage.

In Practice

For technicians working on Nissan vehicles: Before removing the existing alternator, confirm the engine is off and the battery is disconnected at the negative terminal first, and park the vehicle on a flat surface with the parking brake engaged. Remove the battery cable from the B+ terminal of the alternator, noting the correct orientation of each connection, and label or photograph the wiring before disconnecting.

Release the belt tensioner, remove the 6PK drive belt from the pulley and remove the mounting bolts supporting the alternator. Compare the new alternator against the old unit: verify mounting flange, bolt spacing, the 6PK pulley and connector configuration. Clean the mounting surface, position the new alternator, and tighten mounting bolts in stages to factory torque. Reinstall the drive belt, ensuring correct belt routing and tension, then reconnect the wiring and battery cable, ensuring terminals are clean and tight.

After installation, reconnect the battery and start the engine. Check that the alternator charges correctly: battery voltage should rise to approximately 13.5-14.5V with the engine running, the charge warning light should go out, and the alternator should run quietly without bearing noise or belt slip. If the warning light stays on or voltage is out of range, inspect the wiring, belt tension and alternator output before further testing.

References

Parameters, vehicle applications and installation specifications are compiled based on Nissan Altima, Sentra and Rogue service documentation for the charging system, OEM alternator technical standards (23100-JA02A), Nissan OE and aftermarket alternator cross-reference data, and general automotive industry standards for alternator installation, verified against actual vehicle installation tests and after-sales maintenance experience.

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