CAT 9F6580 CAPSCREW for C18 Caterpillar Part - WSTPARTS
9F6580 CAPSCREW is a Electrical System component engineered for Caterpillar C18, 345B and 3512 machines, built to match original factory specifications. It is categorized under Electrical System. Every unit is fitment-verified before dispatch. Manual reference: 3306: FUEL SYSTEM, group 150-3730, page 895; 3406C: LUBRICATION SYSTEM, group 267-5201, page 403.
9F6580 CAPSCREW for Caterpillar C18 — Genuine CAT & Replacement Part
WSTPARTS supplies genuine CAT and OEM-equivalent direct-replacement CAPSCREW (Part # 9F6580). Designed for CAT C18, 345B, 3512, 3306, 3406C, G3508 equipment.
Compatible Models
Key Features
- ✔ 100% compatible with CAT C18, 345B, 3512, 3306, 3406C, G3508
- ✔ Meets Caterpillar original quality and performance standards
- ✔ Genuine CAT lines: New Genuine / Cat Reman / Cat Classic | OEM-equivalent direct replacements
- ✔ Available for order, contact for lead time
Specifications
| Part Number (MPN) | 9F6580 |
| Product Name | CAPSCREW |
| Brand | CAT |
| Applicable Models | C18, 345B, 3512, 3306, 3406C, G3508 |
| Weight | 0.05 kg |
| Condition | New (Genuine CAT / OEM-equivalent direct replacement) |
| Warranty | 12 Months |
Where This Part Fits
Every row below is a real listing of 9F6580 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 |
| 3306 | FUEL SYSTEM | 150-3730 | p.895 |
| 3406C | LUBRICATION SYSTEM | 267-5201 | p.403 |
| 345B | FUEL SYSTEM | 116-5438 | p.120 |
| 3512 | OPERATOR STATION | 139-8537 | p.1023 |
| C18 | LUBRICATION SYSTEM | 295-6141 | p.302 |
| G3508 | FUEL SYSTEM | 107-4335 | p.423 |
| 3306 | ELECTRICAL AND STARTING SYSTEM | 110-6464 | p.1203 |
| 3512 | OPERATOR STATION | 139-8537 | p.1025 |
System Notes — FUEL SYSTEM
The fuel system covers the injection pump, injectors, fuel transfer pump, filters and water separator, lines and the tank. It meters and atomises diesel at the precise moment and quantity the engine needs. Modern CAT engines run very tight injector tolerances, so the group is sensitive to water and dirt: a worn injector dribbles instead of atomising, causing rough idle, white smoke and diluted oil, while a clogged filter starves the pump under load. Parts here are replaced when the engine misfires, smokes, loses power under load, or when the water separator keeps tripping — always after the fuel quality itself has been ruled out.
System Notes — LUBRICATION SYSTEM
The lubrication system covers the oil pump, oil cooler, oil filter base, relief valves, dipstick tube, pan and the galleries that distribute oil to every bearing in the engine. It is the system that keeps metal off metal. Failures tend to be either pressure loss — a worn pump, a stuck relief valve, a collapsed filter — or contamination, where sludge and debris circulate and score bearing surfaces. Oil pressure that reads low at idle, a filter that comes out heavy, or oil that turns dark far sooner than usual are the signals. Parts in this group are replaced on measured oil pressure and lab results rather than on interval alone.
FAQ
Is 9F6580 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 CAT vs direct replacement — what is the difference?
Genuine CAT covers three factory lines: New Genuine, Cat Reman (core exchange with core charge) and Cat Classic (brand-new economy line). OEM-equivalent direct replacements are non-CAT parts; grade and warranty are confirmed in the quotation.
Stock, shipping and warranty?
Lead time confirmed on request; we quote the fastest available option. Every order is covered by a warranty per quotation.
📞 Get a Quote: Contact the WSTPARTS parts team | Email: cat@wstparts.com
