CAT 4N3889 SOLENOID for C18 Caterpillar Part - WSTPARTS
WSTPARTS supplies the 4N3889 SOLENOID, a CAT Solenoid replacement part designed for Caterpillar C18 and C15 applications. It is categorized under Solenoid. Every unit is fitment-verified before dispatch. Manual reference: C15: AIR INLET AND EXHAUST SYSTEM, group 185-1676, page 729; C15: AIR INLET AND EXHAUST SYSTEM, group 283-6414, page 733.
4N3889 SOLENOID for Caterpillar C18 — Genuine & OEM Replacement Part
WSTPARTS supplies genuine and high-quality OEM replacement SOLENOID (Part # 4N3889). Designed for CAT C18, C15 equipment.
Compatible Models
Key Features
- ✔ 100% compatible with CAT C18, C15
- ✔ 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) | 4N3889 |
| Product Name | SOLENOID |
| Brand | CAT |
| Applicable Models | C18, C15 |
| Weight | 0.5 kg |
| Condition | New (Genuine / OEM Equivalent) |
| Warranty | 12 Months |
Where This Part Fits
Every row below is a real listing of 4N3889 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 |
| C15 | AIR INLET AND EXHAUST SYSTEM | 185-1676 | p.729 |
| C18 | AIR INLET AND EXHAUST SYSTEM | 185-1676 | p.419 |
| C15 | AIR INLET AND EXHAUST SYSTEM | 283-6414 | p.733 |
System Notes — AIR INLET AND EXHAUST SYSTEM
The air inlet and exhaust system covers the air cleaner housing and elements, intake piping, turbocharger, aftercooler, exhaust manifold, turbo mounting hardware and gaskets. It delivers clean, dense air and carries hot gas away. On this group, the two dominant failures are dust ingress and heat cycling: a leaking intake joint lets unfiltered air straight into the cylinders and dusts the rings in a few hundred hours, while exhaust manifold and turbo flange gaskets crack from repeated heat cycles and start whistling or sooting. Parts are replaced when boost drops, the intake tract shows dust trails past the filter, or a soot streak appears at a joint.
FAQ
Is 4N3889 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
