CAT 6B4661 BUSHING for C18 Caterpillar Part - WSTPARTS

6B4661 BUSHING is a Bushing component engineered for Caterpillar C18, 345B and C15 machines, built to match original factory specifications. It is categorized under Bushing. Every unit is fitment-verified before dispatch. Manual reference: 345B: OPERATOR STATION, group 128-2146, page 771; C15: COOLING SYSTEM, group 240-7157, page 539.

6B4661 BUSHING for Caterpillar C18 — Genuine CAT & Replacement Part

WSTPARTS supplies genuine CAT and OEM-equivalent direct-replacement BUSHING (Part # 6B4661). Designed for CAT C18, 345B, C15, 365B, G3508 equipment.

Compatible Models

Key Features

• ✔ 100% compatible with CAT C18, 345B, C15, 365B, G3508
• ✔ 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)	6B4661
Product Name	BUSHING
Brand	CAT
Applicable Models	C18, 345B, C15, 365B, G3508
Weight	0.09 kg
Condition	New (Genuine CAT / OEM-equivalent direct replacement)
Warranty	12 Months

Where This Part Fits

Every row below is a real listing of 6B4661 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
345B	OPERATOR STATION	128-2146	p.771
C15	COOLING SYSTEM	240-7157	p.539
C18	COOLING SYSTEM	165-8653	p.313
G3508	LUBRICATION SYSTEM	113-4174	p.189
365B	OPERATOR STATION	144-9674	p.643
C15	COOLING SYSTEM	240-7157	p.535
C18	COOLING SYSTEM	171-8960	p.315
G3508	LUBRICATION SYSTEM	113-6996	p.191

System Notes — OPERATOR STATION

The operator station covers the cab structure, seat and suspension, glass, wipers, door hardware, pedals, joysticks, armrests, HVAC ducting and the interior trim. It is the group that decides how tolerable a ten-hour shift feels. Wear here is driven by daily entry and exit, sun exposure and dust: seat suspensions sag, door struts lose charge, wiper linkages seize, and rubber seals harden until the cab leaks in rain. Parts in this group are replaced when a control feels vague, a latch no longer holds, or the cab no longer keeps dust and water out — small items, but the ones operators complain about first.

System Notes — COOLING SYSTEM

The cooling system covers the radiator, water pump, thermostat, fan and fan drive, coolant hoses, clamps, the surge tank and the belts that drive it. It holds engine temperature inside the range where clearances and oil film stay correct. Failures are usually slow and then sudden: a hose softens and balloons before it bursts, a water pump seal starts weeping from the weep hole, a thermostat sticks partly open so the engine runs cold and burns more fuel. On construction sites the radiator also packs with dust and debris, which raises pressure across the core and finds the weakest hose or clamp first.

FAQ

Is 6B4661 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 C18.

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