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Hoover U4721 Convertible Upright Vacuum Parts List & Schematic
ItemPart Number
1. Thread Guard & Spring (Metal) Part No Longer Available
1. Thread Guard L.H. (Molded) Part No Longer Available
2. Bearing 43267002
3. Thrust Washer 21347003
4. Agitator End (Early Model Standard Performance Cleaners, L.H. Helix) Part No Longer Available
4. Agitator End (Standard & High Performance Cleaners, R.H. Helix) 160542
4. Agitator End (Use With Two Brush Agitator 48414021) 41435070
5. Agitator Brush - 8 Mil (Early Model Standard Performance Cleaners, L.H. Helix) Part No Longer Available
5. Agitator Brush - 8 Mil (Standard Performance Cleaners, R.H. Helix) 160646BZ
5. Agitator Brush - 11 Mil (High Performance Cleaners, R.H. Helix) 48445001
6. Agitator Shaft (Used With Metal Thread Guards) Part No Longer Available
6. Agitator Shaft (Used With Molded Thread Guards) 32724008
7. Thread Guard R H. (Metal) 12985AY
7. Thread Guard R.H. (Molded) 36423007
Agitator Belt - Domestic Models - Convertible/Decade 80/Heavy Duty Commercials 49258AG
Agitator Belt - Lightweight Commercials 44783AG
Agitator Assembly - Standard Performance, R.H. Helix (Metal Thread Guards) 169371MF
Agitator Assembly - High Performance Cleaners, R.H. Helix (Metal Thread Guards With Spring) 41435005
Agitator Assembly - High Performance Cleaners, R.H. Helix (Metal Thread Guards) Part No Longer Available
Agitator Assembly - Standard Performance, R.H. Helix (Molded Thread Guards) Part No Longer Available
Four Brush Agitator Assembly - Heavy Duty Commercial (Use 47159 Brush-Long, 47160 Brush-Short & 46875 Sems Fastener) Part No Longer Available
Four Brush Agitator Assembly - Lightweight Commercial (Use 160646Bz Brush & 36422003 Agitator End) 48414003
Two Brush Agitator Without Beater Bar (Molded Thread Guards) 48414021
Hoover U4721 Convertible Upright Vacuum Parts List & Schematic
ItemPart Number
1. Furniture Brush Part No Longer Available
1. Furniture Brush Part No Longer Available
2. Nozzle Connector Tube (Use With 161852JM) 13149JM
3. Furniture Brush Back (Use With 161852JM) 13254BZ
4. Dusting Brush 161851JM
4. Dusting Brush (One Piece) (Std Fit) 43414064
4. Dusting Brush (Friction Fit) 43414145
Brush (Use With 161851JM) Part No Longer Available
6. Floor Brush Swivel & Collar (Use With 13077JM) 13154JM
Swivel Connector (Use With 43414073) 38644040
7. Floor Brush Swivel Bushing (Use With 13154JM) Part No Longer Available
Split Ring (Use With 38644040) 33712007
8. Floor Brush Nozzle & Brush (Use With 13077JM) 13155JM
Floor Brush Part No Longer Available
Floor Brush (Standard Fit) 43414073
Floor Brush (Friction Fit) 43414135
10. Furniture Nozzle (Standard Fit) 43414057
10. Furniture Nozzle (Friction Fit) 38614029
11. Crevice Tool (Standard Fit) 38617017
11. Crevice Tool 38617024
12. Extension Tube (Standard Fit) 43453027
13. Gasket Part No Longer Available
14. Extension Tube - Curved (Short) (Standard Fit) 43466040
15. Handle Control Foot Pad 34207AG
16. Latch Part No Longer Available
17. Spring Part No Longer Available
18. Washer Part No Longer Available
19. Pad - Felt Part No Longer Available
20. Converter Body Assembly Part No Longer Available
21. Seal - End Part No Longer Available
22. Latch Lever Part No Longer Available
23. Seal - Side Part No Longer Available
24. Converter Body Assembly Conversion (Standard & Friction Fit) Part No Longer Available
25. Cleaning Tool Bag Part No Longer Available
26. Hose Connector (Use With Continuous Convolution Hose) (Standard Fit) Part No Longer Available
26. Hose Connector (Use With Circular Ribbed Hose) (Standard Fit) Part No Longer Available
26. Hose Connector (Use With Circular Ribbed Hose) (Standard & Friction Fit) Part No Longer Available
27. Hose Complete Part No Longer Available
Hose - Less Ends (Circular Ribbed) (Standard Fit Ends) Part No Longer Available
Hose - Less Ends (Circular Ribbed) (Standard Fit Ends) Part No Longer Available
Hose - Less Ends (Circular Ribbed) (Friction Fit Ends) Part No Longer Available
28. Hose Sleeve (Standard Fit Hose) 32156010
29. Hose Connector Collar (Use With Continuous Convolution Hose) (Standard Fit Hose) Part No Longer Available
29. Hose Connector Collar (Use With Circular Ribbed Hose) (Standard Fit Hose) 36171025
30. Hose Connector - Curved With Rings (Use With Continuous Convolution Hose) (Standard Fit) 43466044
30. Hose Connector - Curved With Latch Ring (Without Suction Regulator) (Use With Circular Ribbed Hose) (Standard Fit) Part No Longer Available
30. Hose Connector - Curved With Latch Ring (Without Suction Regulator) (Use With Circular Ribbed Hose) (Standard Fit) 43466058
Hose Connector 39454059
31. Suction Control Ring (Standard) 38711006
32. Hose Connector Label (Standard) Part No Longer Available
33. Latch Ring (Standard) 36153009
34. Hose Complete - Front Conversion (Continuous Convolutions Without Suction Regulator) (Standard Fit) Part No Longer Available
34. Hose Complete - Front Conversion (Circular Ribbed Without Suction Regulator) (Standard Fit) Part No Longer Available
34. Hose Complete - Front Conversion (Circular Ribbed Without Suction Regulator) (Standard Fit) 43434210
34. Hose Complete (Friction Fit) Part No Longer Available
35. Tube Latch 12846AG
36. Rivet Part No Longer Available
37. Rivet Part No Longer Available
38. Rivet 12763AW
39. Reinforcement Plate Part No Longer Available
40. Rivet 12600
41. Washer 21312704
42. Tube Latch - Outer Part No Longer Available
43. Extension Tube - Outer Part No Longer Available
44. Extension Tube Guide 12589
45. Gasket - Inner Part No Longer Available
46. Extension Tube - Inner Part No Longer Available
47. Extension Tube (Standard Fit) Part No Longer Available
48. Extension Tube (Polystyrene) 3863801P
48. Extension Tube (Polystyrene) (Friction Fit) 38634078
Hoover U4721 Convertible Upright Vacuum Parts List & Schematic
ItemPart Number
1. Outer Bag Complete - U4503-9 Part No Longer Available
1. Outer Bag Complete - U4721-900 Part No Longer Available
2. Jacket Support Spring Part No Longer Available
3. Bag Cover Part No Longer Available
3. Bag Cover - U4503-9 Part No Longer Available
3. Bag Cover - U4721-900 Part No Longer Available
4. Hanger Part No Longer Available
4. Hanger - U4503-9 Part No Longer Available
5. Outer Bag Part No Longer Available
5. Outer Bag - U4503-9 Part No Longer Available
5. Outer Bag - U4721-900 Part No Longer Available
6. Screw 21765159
7. Nut 15854EF
8. Drawer - U4503-9 Part No Longer Available
9. Air Freshener Tablet (4 Pack - Spring Bouquet) - U4503-9 Part No Longer Available
10. Throw Away Bag (3 Pack) 4010001A
11. Cord 46383304
12. Switch Button Part No Longer Available
13. Switch Cover Part No Longer Available
14. Switch Part No Longer Available
15. Terminal (3) 27666702
16. Handle Grip Assembly 39454060
16. Handle Grip Assembly - U4721-900 Part No Longer Available
17. Nameplate Part No Longer Available
17. Nameplate - U4721-900 Part No Longer Available
18. Insulated Terminal (3) 12227
19. Screw - Self Tapplng 166735EF
20. Bag Support 39442001
21. Handle - Upper Half Part No Longer Available
21. Handle - Upper Half - U4503-9 48631164
21. Handle - Upper Half - U4721-90 Part No Longer Available
22. Top Fill Tub E 38657004
23. Handle Clamp Nut (2) 32277008
24. Handle Clamp Bolt (2) 21631301
25. Handle Assembly Complete Part No Longer Available
25. Handle Assembly Complete - U4503-9 Part No Longer Available
25. Handle Assembly Complete - U4721-900 Part No Longer Available
26. Handle Assembly - Lower Half - U4503-9 Part No Longer Available
26. Handle Assembly - Lower Half - U4721-900 Part No Longer Available
27. Handle Assembly - Lower Half - U4501, U4501-9 Part No Longer Available
28. Cord Release Arm 36153030
29. Screw - Self Tapping 21434824
30. Bellows 38673009
31. Bag Flange Assembly 41424011
32. Handle Socket Assembly Complete Part No Longer Available
33. Cap Housing / Tubing Assembly Part No Longer Available
33. Cap Housing / Tubing Assembly Part No Longer Available
34. Lead Wire Tie (5) 27479307
35. Handle Control Lever 38456050
36. Foot Pad 38426080
37. Bail Assembly 41416056
37. Ball Assembly - U4721-900 Part No Longer Available
38. Ball Cover Plate Part No Longer Available
39. Screw - Self Tapping (2) Part No Longer Available
40. Cord Clip Part No Longer Available
41. Motor Lead Spring 38313023
42. Nozzle Adjustment Lever 38456044
43. Indicator 51151034
44. Pivot Pin 47450AY
45. Roller Detent Assembly Part No Longer Available
46. Bag Flange Clamp Lever Spring 48409FW
47. Bag Flange Clamp Lever 19907
48. Lock Ring (4) Part No Longer Available
49. Bail Shaft 161509AY
50. Cam Follower Assembly 43263005
51. Yoke 34252005
52. Rear Wheel Shaft 33152003
53. Spring 161513
54. Washer (3) 21312772
55. Rear Wheel (2) Part No Longer Available
56. Wheel Retainer (2) 32182001
57. Connector Part No Longer Available
58. Connector 27617103
59. Bag Cover Nameplate - U4503-9 Part No Longer Available
60. Indicator Guide Assembly 41961009
61. Cord Retainer 34312011
62. Screw - Self Tapping (6) 21447020
63. Cable Tie 27479307
64. Washer (4) 168278AY
65. Retainer 36951004
66. Rivet - Tubular (2) 12997AW
67. Rivet (2) 21256134
68. Indicator Lens 39382004
68. Indicator Lens 48111008
69. Hood Assembly Part No Longer Available
69. Hood Assembly - U4503-9 Part No Longer Available
69. Hood Assembly - U4721-900 Part No Longer Available
70. Lens / Shield 39383053
71. Nameplate Part No Longer Available
71. Nameplate - U4721-900 Part No Longer Available
72. Furniture Guard Part No Longer Available
72. Furniture Guard - U4721-900 Part No Longer Available
73. Screw - Self Tapping (3) 21447003
74. Lamp Socket (2) Part No Longer Available
75. Dirt Finder Lamp (2) 27313101
76. Lamp Socket Holder 36912005
77. Motor Assembly Complete Part No Longer Available
78. Handle Control Spring 12559FW
79. Pivot Pin Retainer 34665007
80. Carrier Wheel (2) Part No Longer Available
81. Carrier Wheel Shaft (2) 47457AY
82. Rivet - Tubular (2) Part No Longer Available
83. Main Body 42242267
84. Washer (2) 21312781
85. Agitator Retaining Spring (2) 34784021
88. Agitator Assembly Complete 41435005
89. Belt 44783AG
90. Support Pad (2) 34111001
91. Bottom Plate 37245081
93. Bottom Plate Latch (2) 36153006
94. Screw (2) 21447203
96. Screw - Self Tapping (2) Part No Longer Available
97. Axle / Bag Flange Retainer 35434040
99. Screw Part No Longer Available
100. Lockwasher 14062
Carton - Common Part No Longer Available
Carton - U4501-9, U4503-9 Part No Longer Available
Carton - U4721-900 Part No Longer Available
Front Support 58343025
Rear Support 58366012
Owner Manual Part No Longer Available
Owner Manual - U4721-900 Part No Longer Available
Indicator Guide Spring 35276006
Furniture Nozzle 38614029
Crevice Tool 38617024
Extension Tube 38634078
Dusting Brush - Friction 43414145
Hose Complete Part No Longer Available
Converter Body Assembly Part No Longer Available
Hoover U4721 Convertible Upright Vacuum Parts List & Schematic
ItemPart Number
5. Screw 21765159
6. Nut 15854EF
8. Jacket Support Spring Part No Longer Available
12. Throw Away Bag (3 Pack) 4010001A
13. Top Fill Tube & Seal (Shown) 43482058
13. Top Fill Tube (Push On Type) 38657004
14. Bag Collar Seal (Use With Item 13 - 43482058) Part No Longer Available
16. Bellows 38673009
17. Bag Ring & Gasket 41424011
17. Bag Ring & Gasket - U4014-079 Part No Longer Available
18. Bellow 11064JM
19. Bag Support Tube 161889
20. Throw Away Bag (3 Pack) 4010003C
20. Throw Away Bag (12 Pack) Part No Longer Available
21. Bag Retainer 46550AG
21. Bag Retainer Sleeve - Early Models Part No Longer Available
22. Outer Bag - Bottom Fill - Wide - Common Part No Longer Available
22. Outer Bag - Bottom Fill - Narrow - Common Part No Longer Available
23. Outer Bag - Bottom Fill - Narrow - Common Part No Longer Available
23. Outer Bag - Bottom Fill - Wide - Common Part No Longer Available
23. Outer Bag (Zip) - U4014-079 Part No Longer Available
24. Jacket Support Spring Part No Longer Available
25. Outer Bag - Top Fill - Common Part No Longer Available
26. Outer Bag - Top Fill - Common Part No Longer Available
Header Cap - U4087 Part No Longer Available
Header Cap - U4091 Part No Longer Available
Header Cap - U4075 Part No Longer Available
Header Cap - U4093 Part No Longer Available
Cable Tie & Instruction Sheet (Used To Secure The Vinyl Outer Jacket To The Bag Ring) 41129008
Hanger (Used In The Repair Of Item # 22, 23, 25, 26 - Secures Jacket Support Spring To Outer Bag) Part No Longer Available
Hoover U4721 Convertible Upright Vacuum Parts List & Schematic
ItemPart Number
1. Screw (3) Part No Longer Available
2. Upper Motor Bearing 42934002
3. Fan 38755004
3. Fan (Polycarbonate) - Black 38755005
4. Screw (4) Part No Longer Available
5. Upper Motor Casing 19857
5. Upper Motor Casing - U4361, U4361-030, U4381-9, U4381-930, U4383, U4385, U4397, U4407, U4447, U4501, U4501-9, U4503-9, U4505, U4721-900 42195003
6. Carbon Brush 47318012
7. Brush Insulator Part No Longer Available
Brush Cap - U4565-048, U4373-048, U4377-935, U4393-048, U4401-948, U4403-048, U4411-948, U4421, U4447, U4449, U4449-048, U4501, U4501-9, U4503-9, U4505, U4721-900 36315003
8. Screw (2) Part No Longer Available
9. Armature Part No Longer Available
10. Bolt (2) Part No Longer Available
11. Field Part No Longer Available
11. Field - U4175, U4195, U4195-001, U4309, U4311, U4345-9, U4377-9, U4377-935 Part No Longer Available
11. Field - U4301-9, U4305, U4303, U4315, U4319-9, U4331-9, U4349, U4349-1, U4353, U4357-9, U4367, U4387, U4389-9, U4391, U4393, U4393-048, U4399-9, U4401-9, U4401-948, U4403, U4403-042, U4403-048, U4409-9, U4411-9, U4411-948, U4421, U4449, U4449-048 Part No Longer Available
11. Field - U4321 Part No Longer Available
11. Field - U4361, U4361-030, U4397 Part No Longer Available
11. Field - U4381-9, U4381-930, U4383, U4385, U4407, U4447, U4501, U4501-9, U4503-9, U4505, U4721-900 45421020
12. Screw (3) 21772501
13. Lock Washer (5) 14062
14. Lower Motor Case - 8Mm Part No Longer Available
15. Nut (2) 15673
16. Bearing - 8Mm 24152807
16. Bearing Replacement Kit - 8Mm Part No Longer Available
17. Retainer - 8Mm 32184003
18. Lock Washer (3) 19772
19. Nut (3) Part No Longer Available
20. Fan (Polycarbonate) - Black 38755011
21. Washer - Heat Insulating 31162004
22. Motor Pulley 38532009
22. Motor Pulley - U4501, U4501-9, U4503-9, U4505, U4721-900 Part No Longer Available
23. Washer Part No Longer Available
24. Fan Spacer - 8Mm Part No Longer Available
24. Fan Spacer - U4363-042, U4363-045, U4365-048, U4371-042, U4371-045, U4373-048, U4377-935, U4393-048, U4401-948, U4403, U4403-042, U4403-048, U4407, U4409-9, U4411-9, U4411-948, U4413, U4413-042, U4413-045, U4421, U4447, U4449, U4449-048, U4501, U4501-9, U4503-9, U4505, U4721-900 Part No Longer Available
25. Terminal 14320
25. Motor - U4381-9, U4381-930, U4383, U4385, U4407, U4447, U4361, U4361-030, U4397 Part No Longer Available
25. Motor - U4189, U4193, U4199, U4325, U4335, U4341, U4343, U4363, U4363-042, U4363-045, U4365, U4365-048, U4371, U4371-042, U4371-045, U4373, U4373-048, U4375-9, U4399-9, U4413, U4413-042, U4413-045 Part No Longer Available
25. Motor - U4301-9, U4303, U4305, U4315, U4319-9, U4331-9, U4349, U4349-1, U4353, U4357-9, U4367, U4387, U4389-9, U4391, U4393, U4401-9, U4449 43574161
25. Motor - U4175, U4195, U4195-001, U4309, U4311, U4337, U4345-9, U4377-9 Part No Longer Available
25. Motor - U4321 Part No Longer Available
25. Motor - U4393-048, U4401-948, U4403, U4403-042, U4403-048, U4409-9, U4411-9, U4411-948, U4421, U4449-048 43574161
25. Motor - U4377-935 Part No Longer Available
25. Motor - U4501, U4501-9, U4503-9, U4505, U4721-900 Part No Longer Available
Armature Spacer / Split Sleeve Kit (For Use With Lower Motor Bearings With 4 Attachment Holes) Part No Longer Available
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