Product Description
**Milwaukee parts change not only by model# but also by serial number. To look up your tools parts break down on Milwaukee's website please click here:
Milwaukee Base Cover - Plastic
Model Number: 31-15-0691
The Milwaukee 31-15-0691 Base Cover - Plastic is a genuine OEM replacement service part used across Milwaukee's cordless jig saw lineup, providing the durable plastic protective cover that mounts to the underside of the jig saw's steel base plate (shoe). The base cover serves two critical functions: it protects the jig saw's steel shoe from wear, scratching, and jobsite abuse as the saw is set down and dragged across workpieces during cutting, and it protects the workpiece surface from being scratched or marred by the metal shoe during finish cutting operations on wood, laminate, and other surfaces where the finished appearance matters. This part replaces obsolete part number 31-15-0690 - Milwaukee retired the old part number and reissued the same plastic base cover under the current 31-15-0691 catalog number, so customers ordering replacement base covers using the older 31-15-0690 reference should order this 31-15-0691 as the correct current replacement. Confirmed compatibility per authorized dealer parts diagrams includes the Milwaukee 2645-20 (serial code C07A) M18 Cordless Orbital Jig Saw, 2645-22 M18 Cordless Orbital Jig Saw, 2737B-20 (serial code J71A) M18 FUEL Barrel Grip Jig Saw, 2645-059 (serial codes D42A and D42B), and additional Milwaukee jig saw platforms in the same cover family.
A cracked, worn, missing, or scratched base cover leaves the jig saw's steel shoe exposed to wear and impact damage, and eliminates the workpiece protection the cover was designed to provide. Symptoms of a failing base cover include visible scratches on finish-cut workpieces where the cover previously prevented marring, exposed metal shoe surfaces showing at the underside of the saw, or the cover itself detaching from the shoe during cutting operations. Replacing the cover with this OEM service part restores correct workpiece protection and shoe integrity at a very affordable price point given the small size of the component. Because Milwaukee Tool specifies replacement parts by both catalog number and serial number, always verify your tool's serial number against the official Milwaukee service parts diagram before ordering, since Milwaukee uses different base cover, shoe, and dust cover part numbers across their broader tool catalog (including 31-15-0021 Rear Cover, 31-15-0275 Dust Cover, 31-15-0280 Cover, 31-15-0310 Cover Plate, 31-15-0693 Base Cover, 31-15-1600 Shoe Base Cover, and 31-06-0050 Base Plate Plastic), all of which are NOT interchangeable with the 31-15-0691. The other companion service parts on the same jig saw parts bulletin (clamps, nuts, washers, compression springs, and other internal components) vary by jig saw model - order companion service parts by your specific tool's serial number rather than by assumption. Verify by serial number using Milwaukee's online parts lookup before ordering to confirm correct fitment.
Features
- Genuine Milwaukee OEM replacement service part, direct factory part for the 31-15-0691 reference
- This part replaces obsolete part number 31-15-0690 (same function, current part number)
- Durable plastic base cover for Milwaukee cordless jig saws
- Protects the jig saw's steel base shoe from wear, scratching, and jobsite abuse
- Protects finish-cut workpieces from scratching by the metal shoe during cutting operations
- Cross-platform fitment across Milwaukee's cordless jig saw lineup (12 machines)
- Confirmed compatibility on the Milwaukee 2645-20 (C07A) M18 Cordless Orbital Jig Saw
- Confirmed compatibility on the Milwaukee 2645-22 M18 Cordless Orbital Jig Saw
- Confirmed compatibility on the Milwaukee 2737B-20 (J71A) M18 FUEL Barrel Grip Jig Saw
- Confirmed compatibility on the Milwaukee 2645-059 (D42A, D42B) jig saw platforms
- Ideal for finish cutting on wood, laminate, and other surfaces where workpiece appearance matters
- Lightweight plastic construction preserves the jig saw's original balance and handling
- Manufactured to Milwaukee factory tolerances and material specifications
- Direct-fit replacement, no modification required for installation
Specifications
- Manufacturer: Milwaukee Tool
- Part Number: 31-15-0691
- Replaces Obsolete Part Number: 31-15-0690
- Official Description: Base Cover - Plastic
- Component Type: Jig Saw Base Plate (Shoe) Protective Cover
- Material: Plastic
- Item Weight: 0.02 lb
- Confirmed Compatible Models: Milwaukee 2645-20 (C07A) M18 Cordless Orbital Jig Saw, 2645-22 M18 Cordless Orbital Jig Saw, 2737B-20 (J71A) M18 FUEL Barrel Grip Jig Saw, 2645-059 (D42A, D42B) plus additional Milwaukee jig saw platforms (verify by serial number - fits up to 12 Milwaukee jig saw machines total)
- Tool Platform: Milwaukee M18 Cordless Jig Saw and M18 FUEL Jig Saw Families
- Related but NOT Interchangeable Parts: Milwaukee 31-15-0021 Rear Cover, 31-15-0275 Dust Cover, 31-15-0280 Cover, 31-15-0310 Cover Plate, 31-15-0693 Base Cover, 31-15-1600 Shoe Base Cover, 31-06-0050 Base Plate Plastic (different applications)
- Quantity: Sold individually, 1 base cover per order
- Part Type: OEM Service Replacement Part
Includes
- (1) Milwaukee 31-15-0691 Base Cover - Plastic
- Note: This part replaces obsolete part number 31-15-0690. Customers ordering using the older 31-15-0690 reference should order this 31-15-0691 as the correct current replacement
- NOT Included: Base plate (shoe), mounting hardware, or companion internal components. The base plate and mounting hardware vary by jig saw model - refer to your tool's parts diagram for the correct part numbers, sold separately
- Note: Milwaukee uses different base cover, shoe, and dust cover part numbers across their broader tool catalog. This part (31-15-0691) is NOT interchangeable with the Milwaukee 31-15-0021 Rear Cover, 31-15-0275 Dust Cover, 31-15-0280 Cover, 31-15-0310 Cover Plate, 31-15-0693 Base Cover, 31-15-1600 Shoe Base Cover, or 31-06-0050 Base Plate Plastic, which are different parts serving different Milwaukee tool platforms and applications
- Note: Verify your tool's catalog number and serial number against the official Milwaukee parts diagram before ordering
