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Exploded Parts Views and Service Manual for the Stoelting U421 Soft Serve Machine

Service manual, catalog, mechanical drawings of parts, and parts list for the Stoelting U421 soft serve machine. FrozenYogurtParts.com is your source for all your ice cream machine and frozen yogurt or soft serve needs.

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Service Manual

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Parts List and Part Numbers

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Not all part list images are included below. See Service Manual link for more parts images and diagrams.



Drawing Index No. Part No. Description
7 625133 "O" Ring, Front Door
11 624520 "O" Ring, Air Bleed Valve
12 694200 Spring, Air Bleed Valve
13 482004 Knob, Air Bleed, Black
14 2110116 Stem, Air Bleed Valve
15 1107123 Spigot Handle
16 570998 Retaining Pin
17 2146293 Spigot Extension, 2.1
- 2157892 Spigot Extension, 1.5
- 2143024 Spigot Extension, 3.2
18 624655 Spigot "O" Ring
19 624645 Spigot Extension "O' Ring
20 3152581 Spigot, White
21 624677 Spigot "O" Ring
22 1177905 Front Door
23 482035 Knob, Black



Drawing Index No. Part Number Qty. Description
1 2104552 1 Auger Front Support
2 149003 1 Front Bearing
3 381804 6 Plastic Flight
4 694255 6 Spring
5 4151178 1 Auger
6 624678 1 Rear Seal "O" Ring
7 1151859 1 Rear Seal Adaptor
8 667868 1 Rear Seal