ranroswang@hksparkling.com 
+86 138 2341 8469
12V 100A 7Kg 3218902 Alternator for Caterpillar Engines 3512C, C4.4, C7.1 – Reliable Power Supply
The 3218902 Alternator (12V, 100A) is a critical charging component for Caterpillar engines 3512C, C4.4, and C7.1, widely used in construction machinery, generators, and heavy-duty equipment. It converts engine mechanical energy into electrical energy to power electrical systems and charge the battery, ensuring stable operation of the engine and its accessories.
· Voltage: 12 Volts
· Amperage (Rated Output): 100 Amps
· Mount Type: Pad
· Fan: Internal
· Regulator: Internal
· Polarity: Negative
· B+ Terminal: M6-1.0 (some sources list M8 for private brand versions)
· L Terminal: M5-0.8
· W Terminal: M5-0.8
· Shaft Threads: M16-1.5
Vehicle Compatibility: Caterpillar 3512C, C4.4, and C7.1 engines
Dear Valued Partners,
Thank you for trusting SPARKLING MACHINERY for premium construction machinery spare parts. Today, we present the 3218902 Alternator—a vital charging component for Caterpillar 3512C, C4.4, and C7.1 engines. It delivers reliable power to electrical systems, ensures stable engine operation, and enhances equipment productivity.
We provide cost-effective, high-quality parts to maximize your machinery’s uptime and efficiency.
The SPARKLING MACHINERY NEW 3218902 Alternator Photo:
Why Choose the SPARKLING 3218902 Alternator?
- Seamless Integration: OEM-matching dimensions and specs enable quick installation, no modifications needed.
- Stable Voltage Regulation: Internal regulator prevents overcharging/undercharging, protecting batteries and electronics.
- Heavy-Duty Durability: High-quality materials and components resist vibration, heat, and wear for long service life.
- Comprehensive Testing: 100% tested before shipment to ensure reliable performance and consistent output.
- Expert Support: Our Caterpillar-focused team offers pre-purchase compatibility checks, installation guidance, and post-sales troubleshooting for a hassle-free experience.
About SPARKLING MACHINERY:
- Founded in 2013, SPARKLING focuses on high-quality excavator parts across hydraulics, undercarriage, engines and electrical systems. We prioritize stability, precision and continuous service, offering worldwide distribution, tailored solutions and strict QC to help customers reduce cost and increase uptime.
Get In Touch:
- Replace your failing ECU confidently. Contact SPARKLING for pricing, lead time, and technical support — restore optimal machine control quickly and reliably.
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📦 Packing
1. Packaging methods: Carton box + Wooden case/Pallet + Anti-rust treatment
2. Export-standard packaging to ensure safety during transportation
3. Custom packaging available upon request
4. Dimensions and weight can be provided for freight calculation
🚚 Shipping
1. Available shipping methods: Sea freight, Air freight, Express delivery (DHL, UPS, FedEx, etc.)
2. LCL (Less than Container Load) and FCL (Full Container Load) options are supported
3. For Russian clients, we can introduce the forwarder agent to you
4. Delivery time: Ships within 1-3 working days after payment (for items in stock)
💳 Payment
1. Accepted methods: T/T, Bank Transfer, PayPal, Alipay, WeChat Pay, Western Union
2. Deposit + balance payment available for large or custom orders
3. Flexible payment options—feel free to contact us for details
📌 Frequently Asked Questions (FAQs)
Q: Which excavator models is this part compatible with?
A: This product is compatible with major brands such as CAT, KOMATSU, HITACHI, and more. Custom specifications are also available.
Q: How can I make sure I’m selecting the correct part?
A: You can send us a photo of the old part, part number, or your excavator model, and we will help you confirm the right match.
Q: Is there a warranty for this product?
A: Yes, we offer a 6-month quality guarantee under normal use.
Get a free quote
We are committed to producing the highest quality products at the most competitive prices. Therefore, we sincerely invite all interested companies to contact us for more information.
Contact us
Email: ranroswang@hksparkling.com
Wechat: +86 136 0901 0879
Skype: foreverlucia1
WhatsApp: +86 136 0901 0879
Address: No. 514-515, Hulin Road, Tianhe District, Guangzhou, China.
Sparkling Machinery Co.,Ltd
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Whatsapp: +8613609010879