CAT 4I1037 HOSE A for 345C Caterpillar Part - WSTPARTS
Need a dependable Hydraulic Hose part for your Caterpillar 345C and 330C machine? The 4I1037 HOSE A from WSTPARTS is manufactured to OEM-grade tolerances. It is categorized under Hydraulic Hose. Every unit is fitment-verified before dispatch. Manual reference: 330C: HYDRAULIC SYSTEM, group 192-6858, page 591; 345C: HYDRAULIC SYSTEM, group 227-0453, page 550.
4I1037 HOSE A for Caterpillar 345C — Genuine & OEM Replacement Part
WSTPARTS supplies genuine and high-quality OEM replacement HOSE A (Part # 4I1037). Designed for CAT 345C, 330C, 320D, 345D equipment.
Compatible Models
Key Features
- ✔ 100% compatible with CAT 345C, 330C, 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) | 4I1037 |
| Product Name | HOSE A |
| Brand | CAT |
| Applicable Models | 345C, 330C, 320D, 345D |
| Weight | 0.41 kg |
| Condition | New (Genuine / OEM Equivalent) |
| Warranty | 12 Months |
Where This Part Fits
Every row below is a real listing of 4I1037 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 |
| 330C | HYDRAULIC SYSTEM | 192-6858 | p.591 |
| 345C | HYDRAULIC SYSTEM | 227-0453 | p.550 |
System Notes — HYDRAULIC SYSTEM
The hydraulic system covers the main pump, control valves, cylinders, hydraulic tank, filters, hoses and all the fittings that connect them. It converts engine power into the pressure and flow that drive boom, bucket, steering and travel functions. Hydraulic parts fail mainly through contamination and heat: dirt that passes a worn breather scores pump components, aged hoses crack at the crimp, and O-rings harden and weep under pressure. A part in this group is normally replaced when a function drifts, a cylinder creeps, oil shows up under a machine that used to be dry, or the filter comes out loaded with metal.
FAQ
Is 4I1037 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 345C.
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
