
SERVICE PARTS LIST
SPECIFY CATALOG NO. AND SERIAL NO. WHEN ORDERING PARTS
M18 FUEL™ 9 GALLON Dual-Battery Wet/Dry Vacuum
EXAMPLE:
00
Component Parts (Small #) Are Included
0
When Ordering The Assembly (Large #).
FIG. PART NO. DESCRIPTION OF PART NO. REQ.
18 49-90-1996 Hose Assembly (1)
35 45-06-0589 Tank Handle (2)
36 05-74-1044 M4 x 12mm Flange T-15 Screw (10)
37 --------------- 9 Gallon Tank (See item 73) (1)
38 44-85-0253 Tank Foot #2 (2)
39 42-16-2700 Bag Holder Attachment (1)
40 42-16-2705 Bag Holder Screw-In Attachment (1)
41 44-85-0252 Tank Foot #1 (2)
42 31-01-3035 Drain Cap (1)
43 49-90-1987 Wand (Includes 1) (2)
44 49-90-1988 Crevice Tool (1)
46 14-04-0130 Caster (4)
47 49-90-2011 Floor Utility Nozzle (1)
48 --------------- Cart Base (1)
49 40-50-3925 Spring (1)
50 44-66-7050 Pedal Cover (1)
51 45-24-3100 Pedal (1)
53 05-74-1012 8-18 x 16mm Hi-Lo T-15 Screw (2)
72 0923-20 Cart Base Assembly (1)
73 0912-20 9 Gallon Tank Assembly (1)
CATALOG NO.
0920-20
STARTING
SERIAL NO.
M53A
BULLETIN NO.
54-05-0165
REVISED BULLETIN
WIRING INSTRUCTION
See page 3
DATE
Dec. 2022
39
36
(2x)
40
37
See page two for 0921-20 Head Assembly service parts
35 36 37 38
73
39 40 41 42
38
(2x)
36
(4x)
42
35
(2x)
36
(4x)
41
(2x)
53
(2x)
50
49
51
18 43
MILWAUKEE TOOL l www.milwaukeetool.com
13135 W. LISBON RD., BROOKFIELD, WI 53005
Drwg. 6
44 47 48 46
(2x)
(4x)
72
46 48 49
50 51 53

FIG. PART NO. DESCRIPTION OF PART NO. REQ.
1 31-44-7015 Carrying Handle (1)
2 42-28-0506 Hose Clip for 1.875" Hose (1)
4 45-58-0285 Mounting Cleat (Set of 1) (4)
5 14-37-0185 Bungee Hose Strap (1)
6 31-01-3052 Head (1)
7 42-28-0560 Bungee Holder (1)
8 58-95-0075 Foam, Head (1)
9 31-70-0170 Hose Rest Bracket (1)
10 31-44-7017 Knurled Pin (2)
11 31-01-3020 Battery Terminal Cap (2)
16 05-74-1042 #7-18 x 19mm Plastite T-20 Screw (8)
17 28-09-2701 Electronics Assembly (1)
17a --------------- PCBA (1)
17b --------------- On-OSwitch (1)
17c --------------- Battery Terminal Block (2)
19 31-05-0735 Exhaust Port (1)
20 31-01-3030 Exhaust Cover (1)
22 43-33-0480 Inlet Elbow (1)
23 31-01-1009 Mid-Frame (1)
24 44-66-5364 Motor Isolator-Upper (1)
25 45-06-0585 Tank Buckle (2)
26 31-50-9005 Motor Assembly (1)
27 31-55-0245 Motor Isolator-Lower (1)
28 --------------- Lower Volute (1)
29 45-06-0587 Mid-Frame Gasket (1)
30 --------------- Lower Volute Filter Seal (1)
31 05-74-1011 8-18 x 12mm Hi-Lo T-15 Screw (57)
32 --------------- Ball Float (1)
33 --------------- Ball Float Cage (1)
34 49-90-1978
52 45-56-0033 Motor Ground Strap (1)
53 05-74-1012 8-18 x 16mm Hi-Lo T-15 Screw (12)
54 22-56-0061 Y-Strap (1)
70a 31-44-0461 Battery Housing with Left Rail (1)
70b 31-44-0462 Battery Housing with Right Rail (1)
74 0921-20 Head Assembly (1)
75 31-15-1987 Lower Volute/Float Cage Assembly (1)
49-90-1989
12-20-0542 Service Nameplate (Not Shown) (1)
0910-20
M18™ FUEL™ 6 Gallon Wet/Dry Vacuum
Consists of the following:
1.875" Hose and Attachments
0911-20 Motor Head Assembly (1 Battery)
0922-20 6 Gallon Tank Assembly
0923-20 Base Cart Assembly
0920-20
M18™ FUEL™ 9 Gallon Wet/Dry Vacuum
Consists of the following:
1.875" Hose and Attachments
0921-20 Motor Head Assembly (2 Batteries)
0912-20 9 Gallon Tank Assembly
0923-20 Base Cart Assembly
0930-20
M18™ FUEL™ 12 Gallon Wet/Dry Vacuum
Consists of the following:
2.5" Hose and Attachments
0921-20 Motor Head Assembly (2 Batteries)
0932-20 12 Gallon Tank Assembly
0933-20 Premium Cart Assembly
NOTE:
Motor Head Assemblies, Tank Assemblies
and Cart Assemblies listed above are all
interchangeable. The 120V AC Motor Head
Assembly 0931-20 is also interchangeable
with the tank and cart assemblies.
LargeWet/DryVacuumHighEciencyFilter
Fleece Dust Bags (Pkg. of 5) (Not Included) (1)
(1)
31
7
5
9
8
20
23
29
24
26
27
28
53
(12x)
30
32
33
31
(3x)
34
31
(8x)
4
(4x)
52
75
(2x)
NOTE: Hose Clip for
1.875” Hoses is standard
2
equipment on Motor Head.
Hose Clip 31-17-0535 is
available for 2.5” Hoses.
6
(2x)
17b
31
17a
(6x)
31
19
(4x)
31
17b
(3x)
22
54
31
(4x)
31
(21x)
70a
16
(8x)
1 2 4 5 6 8 9 10 11 16
17 17a 17b 17c 19 20 22 23 24 25
74
26 27 28 29 30 31 32 33 70a 70b
74 75 52 53
28 30 31
32 33
17
10
25
17a 17b
17c
17c
(2x)
11
(2x)
70b

Motor
Ground
Strap
Y-Strap
Motor Assembly
Motor
Assembly
Ground
Wire
PCBA wires to
Motor Assembly
On-Off Switch
On-Off Switch
Ground Wire
On-Off Switch
Connectors
PCBA Y-Strap
White sleeved wires from PCBA
to the Battery Terminal Blocks
PCBA
Motor
Ground
Strap
Motor Assembly
Motor
Assembly
Ground
Wires
PCBA
Wires to
Motor
Assembly
Y-Strap to ground
connectors (x2)
Wire/
Terminal
Color
Designation
PCBA
White sleeved
wires from PCBA
to the Battery
Terminal Blocks
Connect Yellow Ground PCBA wire to
Y-strap. Connect Y-strap to Motor Ground
Strap and motor ground terminal/tab.
Connect Red PCBA wire to terminal
labeled RED on the motor.
Connect Yellow PCBA wire to terminal
labeled YLW on the motor.
Connect Blue PCBA wire to terminal
abeled BLU on the motor.
Pull on all wires terminated at the motor
to ensure proper connection.
Join PCBA wires and On-Off Switch wires
by inserting connector ends together.
Y-Strap
Ground Wire
As an aid to reassembly, take notice of wire
routings and position in wire guides and
traps while dismantling tool.
Be sure that all components of electronics
kit are seated firmly and squarely in housing
recesses.
Avoid pinched wires, be sure that all wires
and sleeves are pressed completely down
in wire traps.
Prior to securing mid-frame onto the head,
be sure that there are no interferences.
Before installing the battery, check for proper
functionality of switch.
Install battery and depress switch triggers to
assure tool is operating properly.