CAT 6H3956 PIN for C15 Caterpillar Part - WSTPARTS
Need a dependable Pin/Bushing part for your Caterpillar C15, 365B and C9 machine? The 6H3956 PIN from WSTPARTS is manufactured to OEM-grade tolerances. It is categorized under Pin/Bushing. Every unit is fitment-verified before dispatch. Manual reference: 3126B: BASIC ENGINE, group 194-9463, page 185; 365B: FRAME AND BODY, group 214-8429, page 304.
6H3956 PIN for Caterpillar C15 — Genuine CAT & Replacement Part
WSTPARTS supplies genuine CAT and OEM-equivalent direct-replacement PIN (Part # 6H3956). Designed for CAT C15, 365B, C9, 3126B, C13, C27, C7 equipment.
Compatible Models
Key Features
- ✔ 100% compatible with CAT C15, 365B, C9, 3126B, C13, C27, C7
- ✔ 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) | 6H3956 |
| Product Name | PIN |
| Brand | CAT |
| Applicable Models | C15, 365B, C9, 3126B, C13, C27, C7 |
| 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 6H3956 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 | 194-9463 | p.185 |
| 365B | FRAME AND BODY | 214-8429 | p.304 |
| C13 | BASIC ENGINE | 128-3415 | p.183 |
| C15 | BASIC ENGINE | 353-9956 | p.38 |
| C27 | BASIC ENGINE | 349-5622 | p.58 |
| C7 | BASIC ENGINE | 194-9463 | p.209 |
| C9 | BASIC ENGINE | 194-9463 | p.46 |
| C15 | BASIC ENGINE | 353-9957 | p.63 |
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 6H3956 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 C15.
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
