CAT 9T3928 PLUG for 345B Caterpillar Part - WSTPARTS
Need a dependable Electrical System part for your Caterpillar 345B, 365B and 330C machine? The 9T3928 PLUG from WSTPARTS is manufactured to OEM-grade tolerances. It is categorized under Electrical System. Every unit is fitment-verified before dispatch. Manual reference: 330C: HYDRAULIC SYSTEM, group 204-2703, page 470; 345B: HYDRAULIC SYSTEM, group 137-3816, page 446.
9T3928 PLUG for Caterpillar 345B — Genuine & OEM Replacement Part
WSTPARTS supplies genuine and high-quality OEM replacement PLUG (Part # 9T3928). Designed for CAT 345B, 365B, 330C equipment.
Compatible Models
Key Features
- ✔ 100% compatible with CAT 345B, 365B, 330C
- ✔ 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) | 9T3928 |
| Product Name | PLUG |
| Brand | CAT |
| Applicable Models | 345B, 365B, 330C |
| Weight | 0.05 kg |
| Condition | New (Genuine / OEM Equivalent) |
| Warranty | 12 Months |
Where This Part Fits
Every row below is a real listing of 9T3928 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 | 204-2703 | p.470 |
| 345B | HYDRAULIC SYSTEM | 137-3816 | p.446 |
| 365B | HYDRAULIC SYSTEM | 158-9066 | p.368 |
| C15 | SERVICE EQUIPMENT AND SUPPLIES | 299-8963 | p.1083 |
| 330C | HYDRAULIC SYSTEM | 204-2697 | p.473 |
| 365B | HYDRAULIC SYSTEM | 259-0823 | p.369 |
| 345B | HYDRAULIC SYSTEM | 137-3791 | p.585 |
| 330C | HYDRAULIC SYSTEM | 283-5974 | p.474 |
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.
System Notes — SERVICE EQUIPMENT AND SUPPLIES
This group covers the equipment and consumables used to service the machine rather than to run it: filter wrenches and service tools, drain and fill hardware, grease fittings and couplers, sight gauges, sampling valves, and the small hardware that makes routine maintenance possible without improvising. Items here are replaced when they no longer seal, no longer hold a setting, or when a stripped fitting turns a ten-minute service job into a two-hour one. Keeping the correct part number on hand matters more than the unit price, because a missing grease coupler usually means a missed lube point.
FAQ
Is 9T3928 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 345B.
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
