Product Description
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Milwaukee Spindle and Bushing Kit
Model Number: 38-50-0001
The Milwaukee 38-50-0001 Spindle and Bushing Kit is a genuine OEM replacement part designed for the 2719-20 M18 FUEL Hackzall one-handed reciprocating saw. This part replaces obsolete part number 38-50-0415 — if you previously ordered the 38-50-0415 for your Hackzall, the 38-50-0001 is the current Milwaukee-issued replacement and is the correct part to order going forward. The spindle and bushing kit comprises the reciprocating spindle shaft, support bushing, felt oiling pad, and retaining cap that work together to convert the rotational output of the gearcase into the reciprocating cutting motion at the blade clamp. As a complete service kit, the 38-50-0001 ensures that all of the wear-related components in the spindle assembly are replaced together, restoring proper shaft alignment, smooth reciprocation, and full cutting performance after extended use or grease loss.
Each kit ships with the components required to service the spindle assembly during a Hackzall gearcase repair, including a single-use alignment plug/key and an adhesive-backed aluminum disc that are required when servicing or replacing the left and right gearcase assemblies on the M18 FUEL Hackzall. These specialty service items are not sold separately and only come bundled with the 38-50-0001 kit, which is one reason Milwaukee specifies this kit for any 2719-20 gearcase repair. Because Milwaukee Tool specifies replacement parts by both catalog number and serial number, always verify your tool's serial number against the official 2719-20 service parts diagram before ordering, especially given the running production change from 38-50-0415 to 38-50-0001. The 38-50-0001 also requires Milwaukee Type L Grease (49-08-4175) for proper lubrication during reassembly. Verify by serial number using Milwaukee's online parts lookup before ordering to confirm correct fitment.
Features
- Genuine Milwaukee OEM replacement, direct factory part for the 38-50-0001 reference
- Replaces obsolete part number 38-50-0415 for the 2719-20 M18 FUEL Hackzall
- Complete spindle service kit including spindle shaft, bushing, felt oiling pad, and retaining cap
- Includes specialty gearcase service items: alignment plug/key and adhesive-backed aluminum disc
- Specialty service items are not sold separately and come only with this kit
- Manufactured to Milwaukee factory tolerances for proper reciprocation and gearcase fitment
- Direct-fit replacement, no modification or fitting required
- Restores smooth blade clamp reciprocation and cutting performance after wear or grease loss
- Type L Grease (Milwaukee 49-08-4175) required for proper assembly and sold separately
Specifications
- Manufacturer: Milwaukee Tool
- Part Number: 38-50-0001
- Replaces Obsolete Part: 38-50-0415
- Official Description: Spindle and Bushing Kit
- Component Type: Reciprocating Spindle Service Kit
- Primary Fitment: 2719-20 M18 FUEL Hackzall Reciprocating Saw
- Service Bulletin Reference: 54-40-2741
- Quantity: Sold individually as a complete kit, 1 kit per order
- Part Type: OEM Service Replacement Kit
- Required Lubricant: Milwaukee Type L Grease 49-08-4175 (sold separately)
Includes
- (1) Reciprocating Spindle Shaft
- (1) Bushing
- (1) Felt Oiling Pad
- (1) Retaining Cap
- (1) Alignment Plug/Key, gearcase service item
- (1) Adhesive-backed Aluminum Disc, gearcase service item
- Note: Type L Grease (Milwaukee 49-08-4175) is required for assembly and sold separately
- Note: Gearcase assemblies, helical gears, bearings, and motor components are NOT included
- Note: This kit replaces obsolete part 38-50-0415, order 38-50-0001 going forward