Rescue Your 18V Grinder: The Ultimate Housing Replacement
Your 18V LXT Brushless Angle Grinder is the workhorse of your tool arsenal. But when it takes a nasty fall off a workbench or gets crushed in the back of a work van, the plastic exterior takes the hit. While the incredibly tough brushless motor usually survives, a cracked or split housing renders the tool unsafe.
Taping it up isn’t an option-grinders spin at 8,500 RPM, and you need 100% structural rigidity to control them safely. The FixPartHub Replacement Housing Shell allows you to rebuild your grinder for a fraction of the cost of buying a new bare tool.
Why You Must Replace a Cracked Grinder Shell
Angle grinders generate highly conductive metal dust and abrasive debris during operation. The factory housing is specifically designed with air intake vents that channel cooling air over the motor while keeping heavy debris out. A crack in the casing breaks this airflow seal, allowing metal dust to bypass the internal filters and land directly on the sensitive electronic control board, leading to an inevitable and expensive short circuit. Replacing the shell immediately saves your internal electronics from destruction.
Precision Molded for Brushless Guts
Transferring the “guts” of a DGA series grinder requires a shell with flawless internal geometry. Our replacement housing features exact-match screw bosses, trigger switch channels, and motor mounts. The battery slide rail is molded tightly to ensure your 18V battery clicks into place securely without any power-interrupting wobble.
Technical Specifications & Compatibility
| Compatible Models | DGA404, DGA406, DGA454, DGA456, DGA504, DGA560 (18V LXT Series) |
|---|---|
| Material Composition | Heat and Impact-Resistant ABS Polymer |
| Product Type | Replacement Plastic Casing / Motor Cover (Empty Shell) |
| Package Includes | 1x Left Housing Half, 1x Right Housing Half (Hardware not included) |
👨🔧 FixPartHub Pro Repair Tip: Angle grinders pack wires very tightly around the base of the motor. Before you pull the trigger switch or controller board out of your broken shell, snap a few clear photos with your phone. Ensuring the wires are routed in their exact factory channels is critical so they don’t get pinched when you screw the two halves of this new shell together!
Disclaimer: FixPartHub is an independent supplier of high-quality aftermarket replacement parts. We are not affiliated with, authorized by, or endorsed by Makita Corporation. All brand names, model numbers, and trademarks (including Makita and LXT) are the property of their respective owners and are used within this listing solely for compatibility demonstration and informational purposes.
Yes. This premium aftermarket replacement housing (clamshell) is manufactured to exact factory dimensions to perfectly fit Makita 18V LXT brushless angle grinders, specifically the 4-inch DGA404 and 5-inch DGA504 models. It is a direct drop-in replacement that perfectly aligns with your original brushless motor stator, bottom controller board, and switch assemblies.
The two most common reasons are severe impact damage (like dropping the tool onto concrete) and thermal warping. Heavy metal grinding or masonry cutting generates extreme heat, which can melt the internal plastic bearing mounts or permanently clog the air vents with hardened debris. If your motor wobbles inside the casing or the cooling vents are destroyed, a new housing is required to prevent a catastrophic motor failure.
Yes, transferring components in a brushless grinder requires patience. Crucial Pro Tip: Take close-up photos of the wire routing and the electronic controller placement before removing them from your old cracked case. You must also ensure you transfer the original rubber anti-vibration rings from the old bearings. When clamping the two halves of this new shell together, be extremely careful not to pinch the delicate wires connecting the stator to the control board.
