CAT 1661494 SEAL for 345C Caterpillar Part - WSTPARTS
The 1661494 SEAL is a genuine and high-quality OEM replacement part compatible with Caterpillar 345C, 330C and 325C equipment. It is categorized under Drivetrain. Every unit is fitment-verified before dispatch, backed by factory-direct pricing and warranty coverage, and currently in stock for dispatch within 24 hours. Manual reference: 325C: IMPLEMENTS, group 184-5544, page 984; 325D: HYDRAULIC SYSTEM, group 225-4580, page 409.
1661494 SEAL for Caterpillar 345C — Genuine & OEM Replacement Part
WSTPARTS supplies genuine and high-quality OEM replacement SEAL (Part # 1661494). Designed for CAT 345C, 330C, 325C, 336D, 325D, 330D, 320C, 320D, 345D, 365B equipment.
Compatible Models
Key Features
- ✔ 100% compatible with CAT 345C, 330C, 325C, 336D, 325D, 330D, 320C, 320D, 345D, 365B
- ✔ Meets Caterpillar original quality and performance standards
- ✔ Genuine CAT parts with anti-counterfeit label | OEM alternatives with warranty
- ✔ In stock, ready to ship
Specifications
| Part Number (MPN) | 1661494 |
| Product Name | SEAL |
| Brand | CAT |
| Applicable Models | 345C, 330C, 325C, 336D, 325D, 330D, 320C, 320D, 345D, 365B |
| Weight | 0.05 kg |
| Condition | New (Genuine / OEM Equivalent) |
| Warranty | 12 Months |
Where This Part Fits
Every row below is a real listing of 1661494 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 | 184-5544 | p.984 |
| 325D | HYDRAULIC SYSTEM | 225-4580 | p.409 |
| 330C | IMPLEMENTS | 193-6408 | p.941 |
| 330D | HYDRAULIC SYSTEM | 225-4580 | p.424 |
| 336D | UNDERCARRIAGE | 225-4580 | p.355 |
| 345C | IMPLEMENTS | 241-7364 | p.817 |
| 365B | IMPLEMENTS | 212-3012 | p.658 |
| 325C | IMPLEMENTS | 195-5387 | p.986 |
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.
System Notes — HYDRAULIC SYSTEM
The hydraulic system covers the main pump, control valves, cylinders, hydraulic tank, filters, hoses and all the fittings that connect them. It converts engine power into the pressure and flow that drive boom, bucket, steering and travel functions. Hydraulic parts fail mainly through contamination and heat: dirt that passes a worn breather scores pump components, aged hoses crack at the crimp, and O-rings harden and weep under pressure. A part in this group is normally replaced when a function drifts, a cylinder creeps, oil shows up under a machine that used to be dry, or the filter comes out loaded with metal.
FAQ
Is 1661494 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 345C.
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?
In stock — ships within 24 hours. Every order is covered by a 12-month warranty.
📞 Get a Quote: Contact the WSTPARTS parts team | Email: cat@wstparts.com
