CAT 3B4615 COTTER PIN for 3516B Caterpillar Part - WSTPARTS

The 3B4615 COTTER PIN is a genuine and high-quality OEM replacement part compatible with Caterpillar 3516B, 3512 and G3508 equipment. It is categorized under Pin/Bushing. Every unit is fitment-verified before dispatch. Manual reference: 3508C: LUBRICATION SYSTEM, group 120-4501, page 143; 3512: LUBRICATION SYSTEM, group 155-1690, page 305.

3B4615 COTTER PIN for Caterpillar 3516B — Genuine CAT & Replacement Part

WSTPARTS supplies genuine CAT and OEM-equivalent direct-replacement COTTER PIN (Part # 3B4615). Designed for CAT 3516B, 3512, G3508, 3516C, 3508C, 3516, 365B equipment.

Compatible Models

Key Features

• ✔ 100% compatible with CAT 3516B, 3512, G3508, 3516C, 3508C, 3516, 365B
• ✔ 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)	3B4615
Product Name	COTTER PIN
Brand	CAT
Applicable Models	3516B, 3512, G3508, 3516C, 3508C, 3516, 365B
Weight	0.05 kg
Condition	New (Genuine CAT / OEM-equivalent direct replacement)
Warranty	12 Months

Where This Part Fits

Every row below is a real listing of 3B4615 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
3508C	LUBRICATION SYSTEM	120-4501	p.143
3512	LUBRICATION SYSTEM	155-1690	p.305
3516	LUBRICATION SYSTEM	120-4501	p.186
3516B	LUBRICATION SYSTEM	120-4501	p.146
3516C	LUBRICATION SYSTEM	120-4501	p.141
G3508	LUBRICATION SYSTEM	134-0975	p.153
365B	FRAME AND BODY	218-7985	p.289
3512	LUBRICATION SYSTEM	133-9313	p.388

System Notes — LUBRICATION SYSTEM

The lubrication system covers the oil pump, oil cooler, oil filter base, relief valves, dipstick tube, pan and the galleries that distribute oil to every bearing in the engine. It is the system that keeps metal off metal. Failures tend to be either pressure loss — a worn pump, a stuck relief valve, a collapsed filter — or contamination, where sludge and debris circulate and score bearing surfaces. Oil pressure that reads low at idle, a filter that comes out heavy, or oil that turns dark far sooner than usual are the signals. Parts in this group are replaced on measured oil pressure and lab results rather than on interval alone.

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 3B4615 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 3516B.

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