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Part Number
1043649
LOCKNUT
Category: — | Fits: G3508
List Price
$2.58
Stock Status Available (Contact for Inquiry)
Fits Equipment Models (4)
3512C 3516 3516B G3508

CAT 1043649 LOCKNUT fits Caterpillar 3512C, 3516, 3516B, G3508. Available for order at WSTPARTS.

Replaceable OEM Parts (Compatible Models)
No OEM replacement record. Contact us
135-3086-8288
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CAT 1043649 LOCKNUT for G3508 Caterpillar Part - WSTPARTS

The 1043649 LOCKNUT is a genuine and high-quality OEM replacement part compatible with Caterpillar G3508 equipment. It is categorized under Bolt/Nut. Every unit is fitment-verified before dispatch. Manual reference: 3512C: ELECTRICAL AND STARTING SYSTEM, group 115-5164, page 271; G3508: OPERATOR STATION, group 111-2111, page 829.

1043649 LOCKNUT for Caterpillar G3508 — Genuine & OEM Replacement Part

WSTPARTS supplies genuine and high-quality OEM replacement LOCKNUT (Part # 1043649). Designed for CAT G3508 equipment.

Compatible Models

Key Features

  • ✔ 100% compatible with CAT G3508
  • ✔ 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)1043649
Product NameLOCKNUT
BrandCAT
Applicable ModelsG3508
Weight0.05 kg
ConditionNew (Genuine / OEM Equivalent)
Warranty12 Months

Where This Part Fits

Every row below is a real listing of 1043649 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
3512C ELECTRICAL AND STARTING SYSTEM 115-5164 p.271
3516 ELECTRICAL AND STARTING SYSTEM 115-5164 p.449
3516B ELECTRICAL AND STARTING SYSTEM 115-5164 p.657
G3508 OPERATOR STATION 111-2111 p.829

System Notes — ELECTRICAL AND STARTING SYSTEM

The electrical and starting system covers the battery, starter motor, alternator, wiring harness, relays, switches and the instrument panel. It carries current from the batteries to the starter to crank the engine, and from the alternator back to keep the batteries charged. Because these machines work in dust, vibration and wide temperature swings, connectors corrode, harness insulation chafes against the frame, and starter solenoids burn out from repeated short cranks. Parts in this group are usually replaced on a symptom basis — slow cranking, a dash warning, lights that dim under load, or a no-start condition traced to an open circuit.

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.

FAQ

Is 1043649 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 G3508.

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 1043649 fit?
CAT 1043649 LOCKNUT fits 4 Caterpillar equipment models including 3512C, 3516, 3516B, G3508, verified against Caterpillar parts manuals and confirmed orders.
Where is 1043649 listed in the Caterpillar parts manual?
1043649 is listed in the Caterpillar parts manual under 3512C, ELECTRICAL AND STARTING SYSTEM, group 115-5164, page 271.
How can I order 1043649?
Add 1043649 to the inquiry cart, or send us your machine model and serial number — we verify the part number before dispatch.

Parts Diagram3516

Select model:
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3516 · ELECTRICAL AND STARTING SYSTEM · 115-5164 CAT parts diagram
Scroll to zoom · Drag to pan
Sel 0
16L-8150JUMPER-STRIP (TERMINAL)
26L-5855STRIP-TERMINAL
35N-0367FILM-IDENTIFICATION (TERMINAL MARKER)
44B-2047NUT (10-24-THD)
52N-3480SCREW-MACHINE (10-24X0.75-IN)
65M-2894WASHER-HARD (10.2X18.5X2.5-MM THK)In stock
79S-8752NUT-FULL (3/8-16-THD)
85N-7510STUD (3/8-16, 3/8-16X2.76-IN)
96H-5431NUT-BRASS JAM (3/8-16-THD)
105P-7751NUT-BRONZE (3/8-16-THD)
113L-7314WASHER (0.406X0.62X0.032-IN THK)
127W-2709INSULATOR
137W-2710INSULATOR
141V-9020PLUG
155N-3174PLUG-BUTTON
169M-5520SCREW-TAPPING (10-24X0.5-IN)
173L-4566PLUG-BUTTON
186K-9591PLUG-BUTTON
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
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