ShopAmerex.com · Amerex 21920 datasheet · https://shopamerex.com/products/amerex-21920-carriage-assembly-150-novec-775-green · Figures as published by Amerex · Verified Sep 2, 2026
Genuine Amerex service part·Part no. 21920
Amerex 21920 Carriage Assembly, 150 Novec 775, Green
Amerex 21920 is the carriage assembly for the Amerex Model 775 150 lb SF 1230 wheeled clean agent extinguisher, listed as item 3, part 21920, Carriage Assembly 150 SF 1230 GR 775, on Parts Book PN 27277 REV D, page 26 (PDF page 28). Full overview ↓
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Which models does the Amerex 21920 fit?
Per the Amerex Parts Book · page 28| Fits | Extinguisher | UL rating | Capacity | Price | Link |
|---|---|---|---|---|---|
| Model 775 |  28325 Amerex 775 150 lb Wheeled SF 1230 Clean Agent Fire ExtinguisherItem 3 on the Model 775 parts page |
3A:80B:C | 150 lb | $16,965.00 | View |
Parts list for 150 lb. SF 1230 wheeled model
Fitment per the Amerex Parts Book. Check the part number against your unit’s nameplate before ordering.
What is the Amerex 21920?
Amerex 21920 is the carriage assembly for the Amerex Model 775 150 lb SF 1230 wheeled clean agent extinguisher, listed as item 3, part 21920, Carriage Assembly 150 SF 1230 GR 775, on Parts Book PN 27277 REV D, page 26 (PDF page 28). Amerex builds Model 775 with a heavy-duty steel cylinder, carriage and hose hanger assembly, a lunette ring for pintle hook towing, and 16 by 4 in. semi-pneumatic wheels. At maintenance the Owner's Manual directs checking the carriage assembly for loose nuts, bolts, frame distortion or damage, checking the welds for damage or corrosion, and repairing or replacing damaged parts. Amerex replacement parts must be used to protect the UL listing and keep the warranty in effect.
Amerex 21920 specifications
| Part number | 21920 |
|---|---|
| Parts Book description | Carriage Assembly 150 SF 1230 GR 775 |
| Parts Book item number | 3 |
| Parts Book page | 26 (PDF page 28) |
| Model | 775 |
|---|---|
| Extinguisher | Amerex 775 150 lb wheeled SF 1230 clean agent extinguisher |
| Carriage material | Heavy-duty steel |
|---|---|
| Towing | Lunette ring for pintle hook towing |
| Wheels (unit) | 16 x 4 in. semi-pneumatic |
| Shipping weight (packaged) | 100 lb |
|---|
| Amerex item number | 21920 |
|---|
Part data as published by Amerex. Confirm against the current Parts Book revision before ordering for a unit in service.
Amerex 21920 documents
Official Amerex publications · PDFCurrent Amerex publications, hosted on ShopAmerex so links do not break when Amerex reorganizes its site.
Other parts on Parts Book page 28
Parts list for 150 lb. SF 1230 wheeled model · All 10 parts| Part no. | Part | Pack | Price | Quantity and add to cart |
|---|---|---|---|---|
| 19787 | Each | $237.00 | ||
| 19789 | Each | $19.99 | ||
| 19793 | Each | $276.00 | ||
| 21941 | Each | $508.00 | ||
| 22978 | Each | $1,002.00 | ||
| 22984 | Each | $82.99 | ||
| 23544 | Each | $905.00 | ||
| 23634 | Each | $1,202.00 |
Item numbers refer to the exploded view on the Parts Book page. Model-specific items are marked in the Amerex parts list; confirm before ordering.
Amerex 21920 questions
What does the Amerex 21920 carriage assembly fit?
The Amerex Model 775 150 lb SF 1230 wheeled clean agent extinguisher. It is item 3 on the Model 775 parts page of Parts Book PN 27277 REV D.
What is the Amerex 775 carriage made of?
Heavy-duty steel. Amerex publishes a heavy-duty steel cylinder, carriage and hose hanger assembly as a feature of the SF 1230 wheeled extinguisher.
Can the Amerex 775 be towed?
Amerex publishes a lunette ring for pintle hook towing as a feature of this extinguisher.
What size wheels does the Amerex 775 use?
16 by 4 in. semi-pneumatic wheels. The Parts Book lists both a 16 in. semi-pneumatic wheel assembly and a 16 in. pneumatic wheel assembly as item 4.
What maintenance does the carriage need?
The Owner's Manual directs checking the carriage assembly for loose nuts, bolts, frame distortion or damage, checking the welds for damage or corrosion, and repairing or replacing damaged parts.
Does the Amerex 21920 fit any other model?
Parts Book PN 27277 REV D lists part 21920 on one parts page only, the Model 775 150 lb stored pressure wheeled SF 1230 extinguisher on page 26.