Description
Overview:
The Crank Cap Cover for Makita HR4001C hammer drills (MPN 317925-4) is a genuine Makita spare designed to protect the crank mechanism and keep your tool running smoothly. Manufactured from hard-wearing metal with a durable silver finish, it seals the crank area to help keep dust out and lubrication in, supporting consistent impact performance under heavy use. The cover is engineered for a precise, factory-spec fit on the HR4001C, restoring correct sealing and alignment when the original cap is worn, damaged, or lost. As part of routine maintenance, replacing a tired crank cap can reduce downtime and prevent avoidable wear to internal components. This is a straightforward fit for tradespeople and DIY users who need dependable parts for site, workshop, or home projects.
Key Features:
- Genuine Makita part for assured compatibility and fit on the HR4001C
- Robust metal construction for long service life under demanding conditions
- Helps protect internal components from dust and debris ingress
- Supports correct lubrication retention around the crank mechanism
- Maintains impact performance and reduces premature internal wear
- Clean, precise seating to restore original sealing integrity
- Simple replacement with basic hand tools in typical service procedures
- Reliable choice for preventative maintenance and repairs
Typical Applications:
Used during maintenance or repair of Makita HR4001C hammer drills to replace a worn or damaged crank cap. Common on tools exposed to heavy site work, drilling in masonry or concrete, and dusty environments. Ideal for keeping the hammer mechanism sealed, helping extend tool lifespan and maintain consistent performance between services.
Also known as:
Crank case cap, gearbox cap, end cap, service cap, inspection cap, hammer drill crank cover, gear housing cap. These terms are often used to describe the protective cap that seals the crank or gear section of a rotary hammer.
Fits Models:
HR4001C
Alternate Part Numbers:
3179254
Product Specifications
| L&S Part No. | 317925-4 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Makita |
| OEM No. | 317925-4 |
| Unit of Sale | 1 |
| Applications | HR4001C |
| Machine Type | Hammer Drill |
| Fits Brands | Makita |
| Fits Models | HR4001C |
