CAT 4N4378 CYLINDER for C18 Caterpillar Part - WSTPARTS

Need a dependable Hydraulic Cylinder part for your Caterpillar C18, C15 and 3306 machine? The 4N4378 CYLINDER from WSTPARTS is manufactured to OEM-grade tolerances. It is categorized under Hydraulic Cylinder. 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.

4N4378 CYLINDER for Caterpillar C18 — Genuine & OEM Replacement Part

WSTPARTS supplies genuine and high-quality OEM replacement CYLINDER (Part # 4N4378). Designed for CAT C18, C15, 3306, 3406E equipment.

Compatible Models

Key Features

• ✔ 100% compatible with CAT C18, C15, 3306, 3406E
• ✔ 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)	4N4378
Product Name	CYLINDER
Brand	CAT
Applicable Models	C18, C15, 3306, 3406E
Weight	1.68 kg
Condition	New (Genuine / OEM Equivalent)
Warranty	12 Months

FAQ

Is 4N4378 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