ShopAmerex.com · Amerex 09545 datasheet · https://shopamerex.com/products/amerex-09545-1-2-in-x-40-ft-co2-hose-assembly-for-333-and-334-wheeled-units · Figures as published by Amerex · Verified Sep 2, 2026
Genuine Amerex service part·Part no. 09545
Amerex 09545 1/2 in x 40 ft CO2 Hose Assembly for 333 and 334 Wheeled Units
Amerex 09545 is the 40-foot carbon dioxide hose assembly for the Amerex 333 (50 lb) and 334 (100 lb) wheeled extinguishers, item 20 on Parts Book printed page 21 (PDF page 23), where the line names both models. Full overview ↓
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Genuine Amerex part from an authorized Amerex distributor. Not a generic substitute.
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Which models does the Amerex 09545 fit?
Per the Amerex Parts Book · page 23| Fits | Extinguisher | UL rating | Capacity | Price | Link |
|---|---|---|---|---|---|
| Model 333 |  09330 Amerex 333 50 lb Wheeled CO2 Fire ExtinguisherParts Book printed p.21, item 20 |
20B:C | 50 lb (22.7 kg) | $3,862.00 | View |
| Model 334 |  09331 Amerex 334 100 lb Wheeled CO2 Fire ExtinguisherParts Book printed p.21, item 20 |
20B:C | 100 lb (45.4 kg) | $5,708.00 | View |
Parts list for 50/100 lb. carbon dioxide wheeled models
Fitment per the Amerex Parts Book. Check the part number against your unit’s nameplate before ordering.
What is the Amerex 09545?
Amerex 09545 is the 40-foot carbon dioxide hose assembly for the Amerex 333 (50 lb) and 334 (100 lb) wheeled extinguishers, item 20 on Parts Book printed page 21 (PDF page 23), where the line names both models. It carries CO2 from the cylinder valve, or from the manifold on the 334, to the squeeze-grip shut-off valve and horn. Carbon dioxide hose assemblies have a continuous metal braid connecting both couplings to minimize static shock, and the manual requires a hose continuity test plus hydrostatic testing every 5 years to 3000 psi. Amerex requires genuine factory parts to protect the UL listing and keep the warranty in effect.
Amerex 09545 specifications
| Part number | 09545 |
|---|---|
| Description | Hose Assembly - 333,334 (40 ft.) |
| Parts Book page | Printed page 21 (PDF page 23) |
| Diagram item | 20 |
| Hose length | 40 ft (12.1 m) |
| Hose diameter | 0.5 in (1.27 cm) |
| Models | 333, 334 |
|---|
| Amerex item number | 09545 |
|---|
Part data as published by Amerex. Confirm against the current Parts Book revision before ordering for a unit in service.
Amerex 09545 documents
Official Amerex publications · PDF- Parts Book p. 23 Parts list for 50/100 lb carbon dioxide wheeled models 333, 334 (printed p.21)
- Owner's Service Manual — Models 333/334 Installation, operation, inspection, maintenance and recharge
- Wheeled Fire Extinguisher Catalog 333/334 specification table (printed p.10)
- Tech Tip Why genuine Amerex parts
- Warranty
Current Amerex publications, hosted on ShopAmerex so links do not break when Amerex reorganizes its site.
Other parts on Parts Book page 23
Parts list for 50/100 lb. carbon dioxide wheeled models · All 19 parts| Part no. | Part | Pack | Price | Quantity and add to cart |
|---|---|---|---|---|
| 08169 | Each | $32.99 | ||
| 09364 | Each | $395.00 | ||
| 09366 | Each | $108.00 | ||
| 09369 | Each | $39.99 | ||
| 09618 | Each | $13.99 | ||
| 09623-P001 | Pack of 1 | $193.00 | ||
| 09787 | Each | $21.99 | ||
| 09891 | Each | $1,301.00 |
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 09545 questions
What does the Amerex 09545 hose assembly fit?
The Amerex 333 (50 lb) and 334 (100 lb) carbon dioxide wheeled fire extinguishers — the Parts Book line names both models.
How long is the Amerex 09545 hose?
40 feet (12.1 m), the hose length published for both the 333 and the 334.
What is the hose diameter?
0.5 in (1.27 cm), per the 333/334 specification table in the Amerex wheeled catalog.
Does the hose need periodic testing?
Yes — a hose continuity test is required, and carbon dioxide hose assemblies require hydrostatic testing every 5 years to the same test pressure as the cylinder, 3000 psi (20.69 MPa).
Why does a CO2 hose need a continuity test?
Carbon dioxide hose assemblies have a continuous metal braid connecting both couplings to minimize static shock, so the manual has the braid checked with a basic conductivity tester.
When should the hose be replaced?
At annual maintenance, if the hose is cut or cracked; the manual also has air blown through the hose and nozzle assemblies to confirm the passage is clear.
Where is part 09545 listed in the Amerex Parts Book?
Item 20 on printed page 21 (PDF page 23) of Parts Book 27277 Rev D.
Does the Amerex 09545 carry its own UL rating?
No — it is a service part. The assembled Amerex 333 and 334 carry a 20B:C UL and ULC rating.
Is the Amerex 09545 a genuine Amerex part?
Yes — it is the factory CO2 hose assembly listed in the Amerex Parts Book; Amerex states that substitute parts void the UL listing and the warranty.