Product Details

Product Overview

This high-performance 24V 85A Alternator is a premium replacement part specifically designed for the Caterpillar 312D2GC Excavator. Manufactured to meet or exceed OEM specifications, this unit (OEM Part Number 321-8932 / 312-8932) ensures reliable electrical output for demanding heavy equipment applications. We offer global shipping to major industrial hubs in North America, Europe, the Middle East, Asia-Pacific, and Africa, ensuring fast delivery to your job site or workshop.

Key Features & Benefits

• Heavy-Duty Output: Delivers a stable 24V / 85 Amps, ensuring sufficient power for battery charging and electronic systems under high load.
• OEM Standard Fitment: Direct bolt-on replacement for the original Caterpillar unit. No modifications required for installation on the 312D2GC engine.
• Durable Construction: Built with high-grade copper windings and sealed bearings to withstand extreme vibration, heat, and dust common in excavation environments.
• Extended Service Life: Rigorously tested for voltage regulation and thermal performance to ensure long-term reliability and reduced downtime.
• Cost-Effective Solution: Offers a premium aftermarket alternative to genuine Caterpillar parts, providing significant savings without compromising on performance.

Technical Specifications

OEM Cross-Reference

This alternator is a direct cross-reference for the following original manufacturer part numbers:

• Caterpillar: 321-8932
• Caterpillar: 312-8932
• Delco Remy: 19020327 (Equivalent)

Compatibility

• Engine Model: Caterpillar C4.4 ACERT / C4.4 DIT (As used in 312D2 series).
• Machine Model: Caterpillar 312D2 GC Excavator.
• Year Range: Compatible with 312D2 GC models produced from 2012 onwards.

Global Supply & Distribution

• Worldwide Shipping: We ship directly from our global warehouses via FedEx, DHL, UPS, and Sea Freight.
• Major Markets: Serving the USA, Canada, Germany, UK, Australia, UAE, Saudi Arabia, South Africa, and Southeast Asia.
• Fast Delivery: Standard air freight delivers within 5-7 business days to major international airports and ports.
• Export Experience: Our team handles all customs documentation and international trade compliance for seamless import.

Quality Assurance

• Manufacturing Standard: Produced in an ISO 9001:2015 certified facility.
• Testing: Each alternator undergoes a 100% load test to verify voltage regulation (13.8-14.2V) and amp output before packing.
• Warranty: Backed by a 12-month warranty against manufacturing defects.
• Certification: CE and RoHS compliant.

FAQ

Q1: Will this alternator fit my Caterpillar 312D2 GC if I have a different engine serial number?
A: Yes, this alternator is designed for the standard C4.4 engine configuration in the 312D2 GC. It fits all serial numbers within the 312D2 GC production range. Always verify your mounting bracket alignment and pulley size before purchase.

Q2: What is the correct installation procedure for this 24V alternator?
A: First, disconnect the negative battery cable. Remove the belt tensioner, then unbolt the old alternator. Install the new unit, ensuring the mounting bolts are torqued to 45 Nm. Re-tension the belt to 80-100 lbs of deflection. Reconnect the battery and test the charge voltage.

Q3: How can I extend the service life of this alternator?
A: Regularly inspect the drive belt for wear and proper tension. Keep the alternator exterior clean of mud and debris to prevent overheating. Check the battery terminals for corrosion, as a weak battery can overwork the alternator. Annual voltage checks are recommended.

Our advantages

1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.

2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.

3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.

4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.

5. Scientific ERP system, easy and fast to locate the parts that customer needs.

6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.

Exhibition

Packing&Shipping

1.  Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).

2.  Once we get confirmation of payment, we will ship products in 2 days.

3.  Our packaging is standard export wooden box or others as your requirement.

4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.

FAQ

Q1. What is your company major products?

A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.

Q2.What is the MOQ?

A: Normally we can supply any quantity if we have in stock.

Q3. What is your payment term ?

A: We accept Western Union, T/T, Paypal.

Q4. What is the packing ?

A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.

Q5. When can you deliver products after payment ?

A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .

Q6. What can you do to complete order perfectly ?

A: In the beginning , We will communicate with clients in details to understand what they need .

Before packing , We will check the products and send photos to clients .After confirmation ,

We will packing products well to avoid damage . Once we get tracking number ,

We will send it to customer and keep contact in with clients .