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Part Number
5C8312
NUT
Category: | Fits: 345B, 330C, 325C, 3126B, 320C, 320D, 345D
List Price
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Replaceable OEM Parts (Compatible Models)
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CAT 5C8312 NUT for 345B Caterpillar Part - WSTPARTS

The 5C8312 NUT is a genuine and high-quality OEM replacement part compatible with Caterpillar 345B, 330C and 325C equipment. It is categorized under Bolt/Nut. Every unit is fitment-verified before dispatch, backed by factory-direct pricing and warranty coverage. Contact our parts team with your machine serial number for a fast quotation.

5C8312 NUT for Caterpillar 345B — Genuine & OEM Replacement Part

WSTPARTS supplies genuine and high-quality OEM replacement NUT (Part # 5C8312). Designed for CAT 345B, 330C, 325C, 3126B, 320C, 320D, 345D equipment.

Compatible Models

Key Features

  • ✔ 100% compatible with CAT 345B, 330C, 325C, 3126B, 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)5C8312
Product NameNUT
BrandCAT
Applicable Models345B, 330C, 325C, 3126B, 320C, 320D, 345D
Weight0.05 kg
ConditionNew (Genuine / OEM Equivalent)
Warranty12 Months

FAQ

Is 5C8312 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 345B.

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

Parts Diagram3126B

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3126B · ELECTRICAL AND STARTING SYSTEM · 197-8101 CAT parts diagram
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18F-1434LOCKWASHER (0.51MM THK)
28C-6141PLATE-SUPPORT
49W-1901SCREW
58C-6149FRAME AS
62P-8099BALL BEARING
79W-1794COVER
88C-6146ROTOR
91H-3244LOCKWASHER (NO.14) (1/4)
109W-1793BEARING
118C-6147STATOR
126V-9492SCREW-MACHINE (M4X0.7 THD)
138C-6144RECTIFIER
148C-6148FRAME AS
156V-5210SCREW-MACHINE (M4X0.7 THD)
169B-7233LOCKWASHER (NO.8)
178T-4205WASHER-HARD (2MM THK)
185C-2890NUT (M6X1 THD)
195C-2874NUT (M5X.8 THD)
208T-0328WASHER-HARD (1MM THK)
215C-7261NUT (M8X1.25 THD)
228T-4224WASHER-HARD (8.8X16X2MM THK)
235C-8312NUT (M4X0.7 THD)
246V-9673SCREW-MACHINE (M5X0.8X12MM)
259W-1900CAPACITOR
268C-6143GASKET
278C-6142RING-FITTING AVAILABLE REPAIR KIT(S):
289W-1912KIT-HARDWARE (ALTERNATOR) (INCLUDES SPACERS, LOCKWASHERS, NUTS, SCREWS, AND KEY)
298C-6150KIT-TERMINAL (STARTER) (INCLUDES NUTS, WASHERS, INSULATORS, BUSHING, STUD AND CAP)
Quality Guarantee
Warranty Period 12 months / under normal use
After-sales Response Response within 24h, solution within 48h
Return Policy Return or exchange within 7 days of receipt (original packaging required)
Quality Inspection 100% inspected before shipment; inspection report on request
Technical Support Free installation guidance; engineer support online
📦 Packaging
Packing Method Genuine or neutral packaging available
Protective Packing Shock-proof & moisture-proof materials
Part Number Label Individual part number label
Customization Custom carton marking supported
After-Sales Service Process
01
Contact Us
Describe issue / send photos
02
Engineer Review
Solution within 24h
03
Confirm Solution
Return, repair or replacement
04
Case Closed
Send-back / re-ship / refund
Apply for After-Sales Service
Online Support ● Online
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✉️Emailcat@wstparts.com
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