Description
Overview:
The Internal Gear Case Assembly (part no. 135718-5) is a genuine Makita component designed for the DTW1001 and DTW1002 brushless impact wrenches. It is a precision-machined metal housing that supports and protects the wrench's internal drive system, helping to keep gears correctly aligned under heavy load. By enclosing the gearing and associated parts, it shields them from impact, dust, and debris, and helps retain lubrication where it is needed. Built to Makita's specification, this assembly restores structural integrity to the front end of the tool when the original case becomes worn or damaged. Its accurate fitment ensures reliable performance, consistent torque delivery, and long service life in demanding site and workshop conditions.
Key Features:
- Genuine Makita part 135718-5 for assured fit and compatibility
- Built for DTW1001 and DTW1002 brushless impact wrenches
- Robust metal construction for durability under heavy-duty use
- Maintains correct gear alignment and smooth drivetrain operation
- Protects internal components from dust, debris, and impact damage
- Helps reduce noise and vibration caused by a worn or distorted housing
- Straightforward to fit during routine servicing using standard workshop tools
- Supports tool reliability, reducing downtime and maintenance costs
Typical Applications:
Used when overhauling or repairing Makita DTW1001/DTW1002 wrenches that show casing wear, cracking, thread damage, or misalignment. Suitable for professional trades, plant and agricultural maintenance, construction fixings, steelwork, and general workshop tasks where dependable high-torque fastening is required.
Also known as:
Gear housing, gear case, front housing, reduction gear case, transmission case, drive head casing, impact wrench nose housing, gear carrier housing.
Fits Models:
DTW1001, DTW1002
Product Specifications
| L&S Part No. | 135718-5 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Makita |
| OEM No. | 135718-5 |
| Unit of Sale | 1 |
| Applications | DTW1001, DTW1002 |
| Machine Type | Impact Wrench |
| Fits Brands | Makita |

