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Part Number
3F9556
LOCK WASHE
Category: — | Fits: C18, C15, 3512, 336D, 3126B, 325C, 325D, 3306, 330C, 330D, 3406C, 3406E, 3412C, 3512C, 3516, C13, C7, C9, 320D, 345D
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Fits Equipment Models (20)
3126B 320D 325C 325D 3306 330C 330D 336D 3406C 3406E 3412C 345D +8

CAT 3F9556 LOCK WASHE fits Caterpillar 3126B, 320D, 325C, 325D, 3306, 330C and 14 more models. Available for order at WSTPARTS.

Replaceable OEM Parts (Compatible Models)
No OEM replacement record. Contact us
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CAT 3F9556 LOCK WASHE for C18 Caterpillar Part - WSTPARTS

3F9556 LOCK WASHE for Caterpillar C18 — Genuine & OEM Replacement Part

WSTPARTS supplies genuine and high-quality OEM replacement LOCK WASHE (Part # 3F9556). Designed for CAT C18, C15, 3512, 336D, 3126B, 325C, 325D, 3306, 330C, 330D, 3406C, 3406E, 3412C, 3512C, 3516, C13, C7, C9, 320D, 345D equipment.

Compatible Models

Key Features

  • ✔ 100% compatible with CAT C18, C15, 3512, 336D, 3126B, 325C, 325D, 3306, 330C, 330D, 3406C, 3406E, 3412C, 3512C, 3516, C13, C7, C9, 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)3F9556
Product NameLOCK WASHE
BrandCAT
Applicable ModelsC18, C15, 3512, 336D, 3126B, 325C, 325D, 3306, 330C, 330D, 3406C, 3406E, 3412C, 3512C, 3516, C13, C7, C9, 320D, 345D
Weight0.05 kg
ConditionNew (Genuine / OEM Equivalent)
Warranty12 Months

FAQ

Is 3F9556 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 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

Frequently Asked Questions
What equipment does 3F9556 fit?
CAT 3F9556 LOCK WASHE fits 20 Caterpillar equipment models including 3126B, 320D, 325C, 325D, 3306, verified against Caterpillar parts manuals and confirmed orders.
Is 3F9556 a genuine CAT part?
WSTPARTS supplies genuine CAT parts as well as quality-tested aftermarket alternatives. Contact our sales team for current availability and options for 3F9556.
How can I order 3F9556?
Add 3F9556 to the inquiry cart or contact us with your equipment model and serial number. We ship worldwide and support part number verification.

Parts Diagram3126B

Select model:
100%
3126B · ELECTRICAL AND STARTING SYSTEM · 188-3506 CAT parts diagram
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Sel 0
11H-3244LOCKWASHER
26V-8189NUT (5/16-18 THD)
38T-4205WASHER-HARD (7.2X14.5X2MM THK)
43E-5451REGULATOR AS
59L-6770CAP (DUST)
62K-4821LOCKNUT
77F-7621WASHER (0.635X1.25X0.09 IN THK)
88T-4224WASHER-HARD (8.8X16X2MM THK)
93F-9556LOCKWASHER
103E-5450COVER
114B-2043NUT (8-32 THD)
129B-7233LOCKWASHER
133E-5448CONNECTOR
143E-5446CONNECTOR
153E-5457DIODE AS
163E-5461RECTIFIER AS
177N-9023SCREW AS (8-32 X 26.9MM)
183E-5460HOLDER AS-BRUSH
193E-5459BRUSH AS-ALTERNATOR
203N-3718SCREW AS
213E-5458CAPACITOR AS-ALTERNATOR
228T-9367BOLT (1/4-20X2 IN)
233E-5454FAN-ALTERNATOR
243E-5455HOUSING
255P-7807BALL BEARING
263E-5447PLATE
275P-6920BEARING-ROLLER
283E-5462KIT-TERMINAL (INCLUDES NUTS, TERMINAL, LOCKWASHER AND INSULATOR)
294B-2047NUT (10-24 THD)
308T-0328WASHER-HARD (5.5X10X1MM THK)
318F-1434LOCKWASHER
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
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