ShopAmerex.com · Amerex 04128 datasheet · https://shopamerex.com/products/amerex-04128-nitrogen-cylinder-assembly-110-cu-ft-charged-with-cap · Figures as published by Amerex · Verified Sep 2, 2026
Genuine Amerex service part·Part no. 04128
Amerex 04128 Nitrogen Cylinder Assembly, 110 cu. ft., Charged with Cap
Amerex 04128 is the Nitrogen Cylinder (110 cu. Full overview ↓
- Part no.
- 04128
- Pack
- Pack of 1
- Parts Book
- Page 19
- Free shipping (orders over $100)
- Ships charged as hazmat (UN1044). Charged extinguishers cannot be returned.
Genuine Amerex part from an authorized Amerex distributor. Not a generic substitute.
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What is the Amerex 04128?
Amerex 04128 is the Nitrogen Cylinder (110 cu. ft.) - Charged with Cap (Amerex part 04128, item 13), the expellant cylinder for the 110 cu. ft. wheeled models 467, 469, 470 and 472; it is the only Parts Book page that lists it. The owner's manual sets the charge at 2015 PSI at 70°F (21°C), calls for re-pressurizing or replacing the cylinder below 1700 PSI, and directs the technician to the hydrostatic test date stamped on the cylinder crown, with retesting in accordance with DOT regulations. The Parts Book notice states Amerex replacement parts must be used to protect the UL listing and keep the warranty in effect.
Amerex 04128 specifications
| Part number | 04128 |
|---|---|
| Description | Nitrogen Cylinder (110 cu. ft.) - Charged with Cap |
| Parts Book page | Printed p.17 (PDF p.19) |
| Diagram item | 13 |
| Pack quantity | 1 |
| Models | 467, 469, 470, 472 |
|---|
| Nominal pressure | 2015 PSI (13.9 MPa) at 70°F (21°C) |
|---|---|
| Minimum pressure at 70°F | 1700 PSI (11.7 MPa) |
| Amerex item number | 04128 |
|---|
Part data as published by Amerex. Confirm against the current Parts Book revision before ordering for a unit in service.
Amerex 04128 documents
Official Amerex publications · PDF- Parts Book p. 19 Parts list for 125/150 lb dry chemical, 110 cu. ft. nitrogen cylinder wheeled models 467, 469, 470, 472
- Owner's Service Manual (05605) Wheeled 125/150 lb N2 cylinder operated - models 450/452/467/469/470/472
- Safety Data Sheet - Nitrogen Nitrogen expellant gas
- Tech Tip - Amerex Products Need Amerex Parts Why genuine Amerex parts
- Amerex Warranty Statement
Current Amerex publications, hosted on ShopAmerex so links do not break when Amerex reorganizes its site.
Other parts on Parts Book page 19
Parts list for 125/150 lb. dry chemical wheeled models, 110 cu. ft. nitrogen cylinder · All 29 parts| Part no. | Part | Pack | Price | Quantity and add to cart |
|---|---|---|---|---|
| 02234 | Pack of 1 | $113.00 | ||
| 02235 | Pack of 1 | $1,152.00 | ||
| 02272-P001 | Pack of 1 | $5.99 | ||
| 04444 | Pack of 1 | $69.99 | ||
| 04523 | Pack of 1 | $28.99 | ||
| 06032 | Pack of 1 | $88.99 | ||
| 06993 | Pack of 1 | $176.00 | ||
| 07025 | Pack of 1 | $903.00 |
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 04128 questions
What does the Amerex 04128 cylinder fit?
Parts Book 27277 Rev D lists it on one page only, for the 110 cu. ft. nitrogen wheeled models 467, 469, 470 and 472.
What pressure does it ship charged to?
A nominal 2015 PSI (13.9 MPa) at 70°F (21°C), per the owner's manual.
When must it be re-pressurized or replaced?
Below 1700 PSI (11.7 MPa) at 70°F, per the manual's annual maintenance step.
Does it need periodic testing?
Yes - the manual directs checking the hydrostatic test date stamped on the cylinder crown; the cylinder must be retested in accordance with DOT regulations.
Does it come with the cap?
Yes - the Parts Book description is “Charged with Cap”.
Can it be returned?
No. It ships charged as a pressure vessel, so returns are not permitted.
Why use the genuine Amerex part?
The Parts Book notice states the Amerex warranty is voided by generic, off-the-shelf or substitute parts, and that failure to use Amerex replacement parts could cause the extinguisher to malfunction.