CAT 4L2729 WASHER for C18 Caterpillar Part - WSTPARTS

WSTPARTS supplies the 4L2729 WASHER, a CAT Bolt/Nut replacement part designed for Caterpillar C18, 3516B and C15 applications. It is categorized under Bolt/Nut. Every unit is fitment-verified before dispatch. Manual reference: 330D: ELECTRICAL AND STARTING SYSTEM, group 237-1962, page 229; 3512: ELECTRICAL AND STARTING SYSTEM, group 036-9823, page 939.

4L2729 WASHER for Caterpillar C18 — Genuine & OEM Replacement Part

WSTPARTS supplies genuine and high-quality OEM replacement WASHER (Part # 4L2729). Designed for CAT C18, 3516B, C15, 3516C, 3508C, 3512, 3516, C13, C27, C32, G3508, 330C, 330D, 345B, 345D, 365B equipment.

Compatible Models

Key Features

• ✔ 100% compatible with CAT C18, 3516B, C15, 3516C, 3508C, 3512, 3516, C13, C27, C32, G3508, 330C, 330D, 345B, 345D, 365B
• ✔ 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)	4L2729
Product Name	WASHER
Brand	CAT
Applicable Models	C18, 3516B, C15, 3516C, 3508C, 3512, 3516, C13, C27, C32, G3508, 330C, 330D, 345B, 345D, 365B
Weight	0.05 kg
Condition	New (Genuine / OEM Equivalent)
Warranty	12 Months

Where This Part Fits

Every row below is a real listing of 4L2729 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
330D	ELECTRICAL AND STARTING SYSTEM	237-1962	p.229
3512	ELECTRICAL AND STARTING SYSTEM	036-9823	p.939
3516	ELECTRICAL AND STARTING SYSTEM	237-1962	p.565
3516B	ELECTRICAL AND STARTING SYSTEM	125-6537	p.717
3516C	ELECTRICAL AND STARTING SYSTEM	237-1962	p.539
C15	ELECTRICAL AND STARTING SYSTEM	237-1962	p.966
C18	ELECTRICAL AND STARTING SYSTEM	237-1962	p.336
C27	ELECTRICAL AND STARTING SYSTEM	338-3454	p.324

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.

FAQ

Is 4L2729 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