Brake Chambers 
            
 
					UL-Disc: 1824TLD2HUL-4250
Brake Type: Air Disc Brake
							Application: Truck & Trailer
							Suspension Type: All
													Specs
| Unit Type | OEM | 
| Stroke (in.) | 2.5" | 
| Service Size | 18 | 
| Parking Size | 24 | 
| Lead time (weeks) | 8 weeks | 
Technical Data
 
									| Chamber Type | 18-24 | 
| Stroke | 2.5" | 
| Service Volume (in3) | 62 | 
| Emergency Volume (in3) | 91 | 
| Weight (lbs) | 16.5 | 
| A | 6.9 | 
| B | 4.75 | 
| C | 9.8 | 
| D | 7.4 | 
| E | 6.3 | 
| F | 15mm | 
| Inlet Ports | 3/8-18 NPTF | 
| Mounting Studs | 5/8-11 UNC | 
Replacement Parts
 
									| Stroke | 2.5" | 
| A- Release Bolt Assembly | K1003015-PL | 
| B- Dust Cap | K1173007 | 
Warranty (6 years)
The UltraLife-Disc Characteristics
- Full Immersion E-coating
 Full immersion electro-deposition coating inside and out for the most durable corrosion protection in the industry.
- Unique Port Adapter
 UL-Disc features a unique composite port adapter which reduces profile size and allows for easy air connection.
- Patented Bushing Assembly
 Patented bushing assembly provides center seal that traps lubricant for extended service, reducing center section leaks and brake drag.
- Premium Diaphragm
 Premium diaphragms feature high quality contaminant resistant rubber reinforced with nylon fabric tested well beyond the toughest industry specifications.
- All Steel Design
 All steel design provides durable, air tight center section that virtually eliminates leaks, structural failures and prevents galvanic corrosion.
- High Vibration Base
 TSE designed High Vibration "HV" mounting base reduces vibration for longer life standard on UltraLife products.
- Innovative Design
 UL-Disc features a 100% steel inverted spring bottom housing that reduces both spring coil-to-coil contact and spring coil-to-spring housing contact. The all-steel design provides a durable, air-tight center section that virtually eliminates leaks and structural failures, while the recessed pressure plate allows for a shorter and more compact chamber.
- Premium Quality
 TSE is an ISO 9001 and KBA certified company. As an OEM premium direct fit and aftermarket replacement, UL-Disc is the premium brake for your heavy-duty disc brake trucking application.
- Tough Main Spring
 Tested to double SAE standards, UL-Disc’s main spring actually exceeds SAE dry cycle testing requirements in a slurry environment.
- Complete In-House Testing
 UL-Disc brake actuators undergo rigorous in-house testing in TSE’s comprehensive testing lab. Tests include variable pressure cycle testing, vibration testing, hot cell cycle testing, salt spray testing, cold cell leak/operational testing and slurry testing







