CAT 2128561 ALTERNATOR for 120B Caterpillar Part - WSTPARTS
2128561 ALTERNATOR is a Alternator component engineered for Caterpillar 120B and D6G machines, built to match original factory specifications. It is categorized under Alternator. Every unit is fitment-verified before dispatch.
2128561 ALTERNATOR for Caterpillar 120B — Genuine CAT & Replacement Part
WSTPARTS supplies genuine CAT and OEM-equivalent direct-replacement ALTERNATOR (Part # 2128561). Designed for CAT 120B, D6G, 320C, 320D equipment.
Compatible Models
Key Features
- ✔ 100% compatible with CAT 120B, D6G, 320C, 320D
- ✔ Meets Caterpillar original quality and performance standards
- ✔ Genuine CAT lines: New Genuine / Cat Reman / Cat Classic | OEM-equivalent direct replacements
- ✔ Available for order, contact for lead time
Specifications
| Part Number (MPN) | 2128561 |
| Product Name | ALTERNATOR |
| Brand | CAT |
| Applicable Models | 120B, D6G, 320C, 320D |
| Weight | 9.62 kg |
| Condition | New (Genuine CAT / OEM-equivalent direct replacement) |
| Warranty | 12 Months |
FAQ
Is 2128561 the right part for my machine?
Match the part number on your old part, or send us your equipment serial number — WSTPARTS verifies fitment free of charge for CAT 120B.
Genuine CAT vs direct replacement — what is the difference?
Genuine CAT covers three factory lines: New Genuine, Cat Reman (core exchange with core charge) and Cat Classic (brand-new economy line). OEM-equivalent direct replacements are non-CAT parts; grade and warranty are confirmed in the quotation.
Stock, shipping and warranty?
Lead time confirmed on request; we quote the fastest available option. Every order is covered by a warranty per quotation.
📞 Get a Quote: Contact the WSTPARTS parts team | Email: cat@wstparts.com