ProStop
Service chambers and spring brakes are manufactured to the highest standards. Our service chambers and parking chambers are cycled over 1,000,000 and 200,000 times respectively. Our factory is QS9000 
certified.
Our spring brake meets or exceeds SAE J1469-95
Performance
Rated working pressure 116 psi
Maximum working pressure 145 psi
Push rod stroke 2.25”-3”
Operating temperature -40°F to 176°F
ProStop warrants all spring brake service chambers to be free of, or from defect in material and workmanship for 1 year from date of installation. ProStop’s responsibility, under this warranty, is limited to replacement or credit for unit which has failed in normal highway use and service due to material workmanship. Units may be required to be returned to the factory freight prepaid for inspection. All returns must have a RGA (Returned Goods Authorization).
| Part # | Description |
| SB3030S2500 | Standard 30/30 Spring Brake Complete (2.5” Stroke) |
| SB3030S3000 | Long Stroke 30/30 Spring Brake Complete (3” Stroke) |
| SB3030S2518 | Standard 30/30 Spring Brake Complete 18” Push Rod (2.5” Stroke) |
| SB3030S2521 | Standard 30/30 Spring Brake Complete 21” Push Rod (2.5” Stroke) |
| SB3030S25IT | Standard Intraax 30/30 Spring Brake Complete (2.5” Stroke) |
| SB3030S30IT | Long Stroke Intraax 30/30 Spring Brake Complete (3” Stroke) |
| PB3030S250K | Standard Type 30 Piggy Kit W/Clamp & Diaphragm (2.5” Stroke) |
PB3030S300K |
Long Stroke Type 30 Piggy Kit W/Clamp & Diaphragm (3” Stroke) |
| Part # | Description |
|---|---|
| 0900SC | Type 9 Service Chamber |
| 1200SC | Type 12 Service Chamber |
| 1600SC | Type 16 Service Chamber |
| 2000SC | Type 20 Service Chamber |
| 2400SC | Type 24 Service Chamber |
| 3000SC | Type 30 Service Chamber |
| 3600SC | Type 36 Service Chamber |
| Part # | Description |
|---|---|
| 200054 | 1/2" Clevis Pin |
| 239160 | 5/8" Clevis Pin |
| 246152 | 3/4" Clevis Pin |
| 205948 | 1/2" X 1/2" Clevis Assembly |
| 228790 | 1/2" X 5/8" Clevis Assembly |
| 228798 | 5/8" X 5/8" Clevis Assembly |
| 229496 | 3/4" X 5/8" Clevis Assembly |
| 282592 | 3/4" X 3/4" Clevis Assembly |
| 19104-G | Boot & Plate Assembly |
Call for ProStop’s prepay policy. Special quantity breaks available. Call for pricing.