ShopAmerex.com · Amerex 03678-P001 datasheet · https://shopamerex.com/products/amerex-03678-p001-discharge-valve-subassembly-150 · Figures as published by Amerex · Verified Sep 2, 2026
Genuine Amerex service part·Part no. 03678-P001
Amerex 03678-P001 Discharge Valve Subassembly, 150
Amerex 03678-P001 is the Valve Body (Parts Book item 16) at the core of the brass operating valve on the 488 and 490 125 lb wheeled stored-pressure extinguishers (p.16), and it is listed again across the Z-Series 573/575/690/756/758/759 line (p.20, item 19) and the 150 lb Halon 1211 model 600 (p.22, item 15). Full overview ↓
- Part no.
- 03678-P001
- Pack
- 1 (sold individually)
- Fits
- 488, 490, 756 +2 more
- Parts Book
- Page 18
- Free shipping (orders over $100)
- Returns per our refund policy.
Genuine Amerex part from an authorized Amerex distributor. Not a generic substitute.
Ordering parts for a service route?
Quotes for part lists, PO and tax-exempt orders, and parts not yet listed.
Which models does the Amerex 03678-P001 fit?
Per the Amerex Parts Book · page 18| Fits | Extinguisher | UL rating | Capacity | Price | Link |
|---|---|---|---|---|---|
| Model 488 |  10488 Amerex 488 125 lb Wheeled ABC Fire Extinguisher (CG)Parts Book p.16 |
30A:240B:C | 125 lb (56.7 kg) | $5,737.00 | View |
| Model 490 |  10490 Amerex 490 125 lb Wheeled Purple K Fire ExtinguisherParts Book p.16 |
320B:C | 125 lb (56.7 kg) | $6,549.00 | View |
| Model 756 |  27061 Amerex 756 250 lb Wheeled ABC Fire ExtinguisherParts Book p.20 |
40A:160B:C | 250 lb (113.4 kg) | $11,888.00 | View |
| Model 758 |  27063 Amerex 758 250 lb Wheeled Purple K Fire ExtinguisherParts Book p.20 |
160B:C | 250 lb (113.4 kg) | $13,364.00 | View |
| Model 759 |  27065 Amerex 759 125 lb Wheeled Purple K Fire ExtinguisherParts Book p.20 |
120B:C | 125 lb (56.7 kg) | $12,112.00 | View |
Parts list for 125/150 lb. dry chemical stored pressure wheeled models
Fitment per the Amerex Parts Book. Check the part number against your unit’s nameplate before ordering.
What is the Amerex 03678-P001?
Amerex 03678-P001 is the Valve Body (Parts Book item 16) at the core of the brass operating valve on the 488 and 490 125 lb wheeled stored-pressure extinguishers (p.16), and it is listed again across the Z-Series 573/575/690/756/758/759 line (p.20, item 19) and the 150 lb Halon 1211 model 600 (p.22, item 15). The Parts Book's replacement-valve note lists the valve body alongside the gauge, gauge guard, cam, pressure valve and cap, lever, valve stem assembly, spring and downtube that make up a complete valve. It ships as a single body. Amerex replacement parts must be used to protect the UL listing and keep the warranty in effect.
Amerex 03678-P001 specifications
| Part number | 03678-P |
|---|---|
| Description | Valve Body |
| Parts Book page | 16 (PDF p. 18) |
| Diagram item | 16 |
| Pack quantity | 1 (sold individually) |
| Models | 488, 490, 573, 575, 690, 756, 758, 759, 600 |
|---|
| Amerex item number | 03678-P001 |
|---|
Part data as published by Amerex. Confirm against the current Parts Book revision before ordering for a unit in service.
Amerex 03678-P001 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 18
Parts list for 125/150 lb. dry chemical stored pressure wheeled models · All 22 parts| Part no. | Part | Pack | Price | Quantity and add to cart |
|---|---|---|---|---|
| 03501 | 1 (sold individually) | $600.00 | ||
| 03556-P006 | 6 per pack | $14.99 | ||
| 03562-P001 | 1 (sold individually) | $11.99 | ||
| 04938 | 1 (sold individually) | $110.00 | ||
| 05067-P001 | 1 (sold individually) | $17.99 | ||
| 05197 | 1 (sold individually) | $671.00 | ||
| 05239-P012 | 12 per pack | $53.99 | ||
| 06059 | 1 (sold individually) | $132.00 |
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 03678-P001 questions
What does the Amerex 03678-P001 valve body fit?
The 488 and 490 125 lb wheeled dry chemical extinguishers (Parts Book p.16) and the Z-Series 756, 758 and 759 (p.20).
What is the Parts Book name for this part?
Item 16, "Valve Body," part number 03678-P; the store lists it as the Discharge Valve Subassembly.
What other components mount into this valve body?
Amerex's Parts Book note lists the gauge, gauge guard, cam, pressure valve and cap, lever, valve stem assembly, spring and downtube/retainer assembly as the parts that make up a complete replacement valve assembly with this body.
Is the Amerex 03678-P001 a genuine Amerex part?
Yes. Amerex's Parts Book notice states that genuine factory parts are required to protect the UL listing and keep the warranty in effect.
Where is the 03678-P001 listed in the Amerex Parts Book?
Printed page 16, item 16 (PDF page 18), and printed page 20, item 19, for the Z-Series family.
Does replacing the valve body require depressurizing the extinguisher?
Yes. Amerex's owner's manual states that valve removal and valve part replacement shall be made only after completing the depressurizing procedures in the Complete Maintenance section.