Description
Power Products HT1219 steel air-brake reservoir — 12″ diameter, 29.5″ mounting-hole center-to-center, 2,850 cu in capacity. Aftermarket replacement for Fontaine Trailer 51475005, Automann 172.2007, and Sirco AT1219. Twin 3/4″ NPT main ports (same side, opposite ends), 3/8″ end port, 1/4″ drain, F-style inverted/flange brackets, DOT-compliant.
Signs You Need a New Air Tank
- Visible rust, corrosion, or pitting on the tank body
- Air leaks at ports, welds, or the tank shell
- Slow air-pressure build-up in the brake system
- Excessive moisture or oil from the drain valve
- Failed DOT inspection due to tank condition
- Damaged or broken mounting brackets
Specifications
| Manufacturer | Power Products |
|---|---|
| Part Number | HT1219 / HT-1219 |
| Part Type | Air Brake Reservoir (Steel) |
| Diameter | 12 in |
| Mounting Length | 29.5 in (center-to-center) |
| Overall Length | 31 in |
| Capacity | 2,850 cu in |
| Main Ports | (2) 3/4″ NPT (same side, opposite ends) |
| End Port | 3/8″ NPT |
| Drain Port | 1/4″ NPT |
| Bracket Style | F (inverted / flange mount) |
| Material | Steel with corrosion-resistant coating |
| DOT Compliant | Yes |
Cross References
This reservoir replaces or is equivalent to the following part numbers:
- Fontaine Trailer: 51475005
- Automann: 172.2007
- Sirco: AT1219
- Dayton Parts: 12-285019
- New Life: 1010332, HT1219
- Hoosier Tank: HT1219
- Velvac: AT1219
Applications
This 12″ reservoir replaces primary, secondary, or auxiliary air tanks in heavy-duty applications including:
- Class 8 over-the-road tractors (Freightliner, Kenworth, Peterbilt, Volvo, Mack, Western Star, International)
- Semi-trailers — flatbed, dry van, refrigerated, tanker (Fontaine, Great Dane, Wabash, Utility)
- Vocational chassis — dump, mixer, refuse, fire
- Buses and motor coaches with air brake reservoirs in this size range
Verify tank diameter, mounting-hole center-to-center distance, and port sizes / locations against the reservoir being replaced before ordering. Always use DOT-compliant components in air brake systems.









