CAT 6I6406 ADAPTER for 330C Caterpillar Part - WSTPARTS
The 6I6406 ADAPTER is a genuine and high-quality OEM replacement part compatible with Caterpillar 330C and 325C equipment. It is categorized under Structure. Every unit is fitment-verified before dispatch. Manual reference: 325C: IMPLEMENTS, group 127-6802, page 1013; 325D: IMPLEMENTS, group 250-6415, page 793.
6I6406 ADAPTER for Caterpillar 330C — Genuine & OEM Replacement Part
WSTPARTS supplies genuine and high-quality OEM replacement ADAPTER (Part # 6I6406). Designed for CAT 330C, 325C, 320D, 325D, 330D equipment.
Compatible Models
Key Features
- ✔ 100% compatible with CAT 330C, 325C, 320D, 325D, 330D
- ✔ Meets Caterpillar original quality and performance standards
- ✔ Genuine CAT parts with anti-counterfeit label | OEM alternatives with warranty
- ✔ Available for order, contact for lead time
Specifications
| Part Number (MPN) | 6I6406 |
| Product Name | ADAPTER |
| Brand | CAT |
| Applicable Models | 330C, 325C, 320D, 325D, 330D |
| Weight | 12.25 kg |
| Condition | New (Genuine / OEM Equivalent) |
| Warranty | 12 Months |
Where This Part Fits
Every row below is a real listing of 6I6406 in the Caterpillar parts manual: the machine it is published under, the system it belongs to, the group number and the manual page. Use it to confirm the part against your own parts book before ordering.
| Machine | System | Group No. | Manual Page |
| 325C | IMPLEMENTS | 127-6802 | p.1013 |
| 325D | IMPLEMENTS | 250-6415 | p.793 |
| 330C | IMPLEMENTS | 193-4947 | p.958 |
| 330D | IMPLEMENTS | 239-2700 | p.827 |
| 325C | IMPLEMENTS | 130-4191 | p.1014 |
| 325C | IMPLEMENTS | 193-4844 | p.1015 |
| 325D | IMPLEMENTS | 250-6444 | p.794 |
| 330C | IMPLEMENTS | 193-4844 | p.959 |
System Notes — IMPLEMENTS
The implements group covers the working attachment and its linkage: bucket or blade, cutting edges, teeth and adapters, pins and bushings, linkage arms, tilt cylinders and the wear plates that protect them. This is the group that actually does the work, so it wears fastest. Cutting edges round off, teeth break at the adapter, and pins and bushings develop play that spreads shock loads back into the linkage. Parts here are replaced on measured wear — pin and bushing clearance, edge thickness, tooth height — rather than on hours, because a worn edge costs fuel and cycle time long before it fails outright.
FAQ
Is 6I6406 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 330C.
Genuine vs OEM replacement — what is the difference?
Genuine CAT parts carry an anti-counterfeit label. OEM equivalents are built to the same specifications, bench-tested and supplied with full warranty at a better price.
Stock, shipping and warranty?
Lead time confirmed on request; we quote the fastest available option. Every order is covered by a 12-month warranty.
📞 Get a Quote: Contact the WSTPARTS parts team | Email: cat@wstparts.com
