CAT 3B8489 FITTING for 345C Caterpillar Part - WSTPARTS
Need a dependable Hydraulic System part for your Caterpillar 345C, C18 and 3516B machine? The 3B8489 FITTING from WSTPARTS is manufactured to OEM-grade tolerances. It is categorized under Hydraulic System. Every unit is fitment-verified before dispatch. Manual reference: 3126B: BASIC ENGINE, group 201-9771, page 277; 325C: FRAME AND BODY, group 199-4476, page 412.
3B8489 FITTING for Caterpillar 345C — Genuine & OEM Replacement Part
WSTPARTS supplies genuine and high-quality OEM replacement FITTING (Part # 3B8489). Designed for CAT 345C, C18, 3516B, 336D, 3126B, 325C, 325D, 3306, 330C, 330D, 3406C, 3406E, 345B, 3512, 3512C, 3516, 3606, 3608, 3616, 365B, C13, C15, C175, C32, C7, C9, G3608, G3612, G3616, 320C, 320D, 345D equipment.
Compatible Models
Key Features
- ✔ 100% compatible with CAT 345C, C18, 3516B, 336D, 3126B, 325C, 325D, 3306, 330C, 330D, 3406C, 3406E, 345B, 3512, 3512C, 3516, 3606, 3608, 3616, 365B, C13, C15, C175, C32, C7, C9, G3608, G3612, G3616, 320C, 320D, 345D
- ✔ 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) | 3B8489 |
| Product Name | FITTING |
| Brand | CAT |
| Applicable Models | 345C, C18, 3516B, 336D, 3126B, 325C, 325D, 3306, 330C, 330D, 3406C, 3406E, 345B, 3512, 3512C, 3516, 3606, 3608, 3616, 365B, C13, C15, C175, C32, C7, C9, G3608, G3612, G3616, 320C, 320D, 345D |
| Weight | 0.05 kg |
| Condition | New (Genuine / OEM Equivalent) |
| Warranty | 12 Months |
Where This Part Fits
Every row below is a real listing of 3B8489 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 |
| 3126B | BASIC ENGINE | 201-9771 | p.277 |
| 325C | FRAME AND BODY | 199-4476 | p.412 |
| 325D | FRAME AND BODY | 199-4478 | p.330 |
| 3306 | BASIC ENGINE | 164-7562 | p.134 |
| 330C | FRAME AND BODY | 199-4559 | p.391 |
| 330D | FRAME AND BODY | 199-4559 | p.346 |
| 336D | FRAME AND BODY | 199-4559 | p.273 |
| 3406E | BASIC ENGINE | 136-9500 | p.101 |
System Notes — BASIC ENGINE
The basic engine group covers the core structure and internals: cylinder block, cylinder head, pistons, rings, liners, connecting rods, crankshaft, bearings, camshaft and the gasket sets that seal them. These parts determine compression, oil pressure and power output. They wear gradually — rings lose tension, bearings show copper, liners glaze — and the first signs are usually blow-by from the breather, rising oil consumption, or a knock that gets louder as the engine warms. Replacing a basic engine part is a planned overhaul decision rather than a roadside fix, so matching the exact part number and serial number range matters more here than anywhere else on the machine.
System Notes — FRAME AND BODY
The frame and body group covers the main frame, counterweight, fenders, steps, handrails, access doors, panels and the mounting hardware that ties them together. It carries every load the machine generates and every load the attachment imposes back into the structure. Cracks almost always start at a weld toe or a bolt hole where a mounting has worked loose, and a loose guard or step is both a structural and a safety issue. Parts in this group are replaced after impact damage, after crack repair, or when fasteners no longer hold torque because the hole has elongated.
FAQ
Is 3B8489 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?
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
