Description
Overview:
The Gear Assembly for Makita BDF440 and BDF450 Driver Drills, Manufacturer Part Number (MPN) 125182-8, is a complete drive unit that transmits motor power to the chuck with consistent torque and speed. This is a Genuine Makita OEM service part, manufactured from high-grade metal gearing for long service life under regular site and workshop use. It restores smooth operation in worn or noisy drills and helps prevent further damage to the motor and clutch. Designed specifically for the Makita BDF440 and BDF450 platforms, it fits correctly without modification and supports reliable day-to-day drilling and screwdriving. Ideal for users maintaining fleet tools or keeping a single drill in dependable working order.
Key Features:
- Genuine OEM Makita part for assured fit and function (125182-8)
- Precision-machined metal gears for durability under load
- Efficient power transmission to maintain torque and speed
- Direct replacement—no modifications required on listed models
- Helps resolve common symptoms such as slipping, grinding, or loss of drive
- Engineered to withstand heavy-duty, repetitive use
- Consistent performance in construction, carpentry, and maintenance tasks
- Compatible with Makita service documentation and standard assembly methods
- Easy to fit with basic hand tools; follow Makita service guidance
- Supports preventative maintenance to extend overall drill lifespan
Typical Applications:
Used within the drive train of Makita BDF440 and BDF450 cordless driver drills to restore reliable torque delivery for drilling and screwdriving. Suitable for routine maintenance, refurbishment of high-use tools, and repairs after gear wear or failure. Common in construction, shop fitting, joinery, facilities maintenance, and DIY.
Also known as:
Makita drill gear assembly, gearbox assembly, transmission assembly, drive gear set, replacement gearbox for BDF-series drills.
Fits Models:
BDF440, BDF440 SFE, BDF450
Alternate Part Numbers:
125182-8, 125182 8, 1251828
Product Specifications
| L&S Part No. | 125182-8 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Makita |
| OEM No. | 125182-8 |
| Unit of Sale | 1 |
| Machine Type | Drills |
| Fits Brands | Makita |
| Fits Models | BDF440, BDF440 SFE | BDF450 |
Reviews
Ask a Question
Compatibility
Customers also bought
-
![]()
Key Steel (Imperial) Length: 12" Assorted Pack of 20£78.14 £65.12 -
![]()
Flat Bar, Sizes: 20 x 3-6mm - Assorted Pack of 10£79.52 £66.27
Related Products
-
![]()
Key Steel (Imperial) Length: 12" Assorted Pack of 20£78.14 £65.12 -
![]()
Flat Bar, Sizes: 20 x 3-6mm - Assorted Pack of 10£79.52 £66.27
