12V 40A Alternator 0R9996 7N4784 7N4787 Fits Caterpillar Cat 931B 3204 1979 - 1988
12V 40A Alternator 0R9996 7N4784 7N4787 Fits Caterpillar Cat 931B 3204 1979 - 1988 is backordered and will ship as soon as it is back in stock.
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Powering 10,000+ Commercial Fleets
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One Year Warranty
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Easy 60-day Return
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No Hidden Charges Upon Arrival
Description
Description
12V 40A Alternator 0R9996 7N4784 7N4787 Fits Caterpillar Cat 931B 3204 1979 - 1988
Maintaining heavy machinery at optimal operational efficiency is essential for minimizing downtime and ensuring consistent productivity in demanding environments. This 12V 40A alternator is engineered to meet OEM specifications, providing reliable fit and durability for construction and industrial equipment.
Compatible Part Numbers
- Caterpillar: 0R9996, 7N4784, 7N4787, 7N6118, 0R-9996, 7N-4784, 7N-4787, 7N-6118
- Denso: 021000-7360, 021000-8420, 100211-0010, 100211-0230
- Lucas: A8114, A8115
- Real: 20132101
- Remy: DRA2601
Specifications
- Voltage: 12V
- Amperage: 40A
Compatible Engines
- 3204
Compatible Equipment
- Caterpillar Track Loaders: 931B, 931B LGP, 931C, 931C LGP, 931C Series II, 931C LGP Series II, 931C & 931C LGP Trash Loaders, 935B, 935C, 935C Series II, 935C II
- Caterpillar Tractors: D3B, D3B LGP, D3, D3C, D3C LGP, D3C LGP Series II, D3C & D3C LGP Series II, D4B, D4C, D4C LGP, D4C LGP Series II, D5C, D5C LGP
- Caterpillar Wheel Loaders: 910, G910
- Caterpillar Integrated Toolcarriers: IT12
This alternator is a new aftermarket component designed to deliver dependable electrical performance for Caterpillar equipment manufactured between 1979 and 1988. It is compatible with multiple machine configurations including power shift and direct drive systems, ensuring versatility across various operational setups. The product supports a wide range of Caterpillar models powered by the 3204 engine, making it a practical replacement part for maintenance and repair operations.
Precision manufacturing and quality control ensure that this alternator meets stringent industry standards, providing consistent voltage and current output necessary for the reliable operation of heavy machinery electrical systems. Its robust construction is suitable for the harsh conditions typical of construction, mining, and agricultural environments.
By selecting this alternator, operators and maintenance professionals can expect a component that integrates seamlessly with existing systems, thereby preserving equipment longevity and operational efficiency. The compatibility with original part numbers from Caterpillar and other manufacturers like Denso, Lucas, Real, and Remy further guarantees interchangeability and ease of installation.
1 Year Warranty
1 Year Warranty
Fab Heavy Parts is excited to offer a 12-month warranty on all new replacement/aftermarket parts starting from your original purchase date.
Enjoy peace of mind with Fab Heavy Parts!
For more warranty details, please check out our warranty policy.
Fast Delivery
Fast Delivery
Estimated delivery time 3-6 workdays
No Core Charge
No Core Charge
We don't have a core charge for any products.
Frequently Asked Questions
What is your return policy?
We accept returns within 60 days of delivery for unused parts in original packaging. To initiate a return, please submit your request through our return portal. Return shipping costs for non-defective items are the buyer's responsibility.
Can I cancel my order?
You may request a cancellation before your order has been dispatched. Once an order has been fulfilled and shipped, it cannot be cancelled — standard return terms will apply instead. Please contact us as soon as possible if you need to cancel.
What payment methods do you accept?
We accept all major credit and debit cards including Visa, Mastercard, and American Express. We also support PayPal, Apple Pay, and Google Pay at checkout. For B2B and trade customers, bank transfer and net payment terms may be available upon account approval — please contact us to discuss your requirements.
How long will delivery take?
Estimated delivery timeframes are displayed on most product pages and all tool listings. For parts without a displayed timeframe, standard delivery to US addresses is typically 5–10 business days from dispatch, depending on your location and the origin warehouse. Express shipping options may be available at checkout.
Will I be charged import tax or customs duties?
No. US customers are not charged any import fees or customs duties on their orders. The price you see is what you pay — there are no hidden charges added upon delivery.
How do I find out the shipping cost for my order?
You can get an estimated shipping cost directly on the cart page — just add your parts to the cart and enter your delivery zip code to see available shipping options and rates. For large or heavy orders requiring a freight quote, please contact us directly with your parts list and delivery zip code.
Do you offer trade accounts for US buyers?
Yes. US trade customers can apply for a B2B account to access volume pricing, net payment terms, and dedicated account support. Contact us directly to get started.
