Heavy-Duty T3030 DDL Trailer Brake Chamber for Commercial Vehicles
Premium T3030 DDL trailer brake chamber (350×116×109mm) with durable steel housing. Front position installation. Global shipping available.
Basic Info.
- Model NO. T3030 DDL
- Type: Brake Chamber
- Material: Steel
- Position: Front
- Certification: ISO/TS16949
- Classification: Disc
- Drum Brakes Classification: Brake Drum
- Main Market: South America, North America, Eastern Europe, Mild East, Southeast Asia, Africa, Western Europe, Eastern Asia, Northern Europe, Oceania, Southern Europe, Central America, South Asia, Domestic Market
- Transport Package: Carton
- Specification: 350 x 116 x 109
- MOQ: 50 PCS
- Origin: China
- HS Code: 87089390
- Production Capacity: 50000 pcs/ year
- Package Size: 120.00cm * 100.00cm * 100.00cm
- Package Gross Weight: 200.000kg
Product Description of T3030 DDL trailer brake chamber
- A = Length from mounting bracket to end of Spring Housing
- B = Length of Piggyback
- C = Dimension at rolled Spring Housing flange
- D = Dimension at Service Clampband
- E = Stud Spacing 4.75 in. (120.7mm)
- J = Pushrod Length from face of Service Housing
- K = Distance to Clevis Pin centerline from face of Service Housing
- S1 = Service Clampband position (0°)
- T = Air Port position (90°)
- Stud Type: 5/8-11 UNC Grade 5
Stud Length: 1.50 in. (38.1mm)
Pushrod Thread: 5/8-18 UNF
Air Port Threads: 3/8-18 NPTF
Maximum Air Pressure: 150 psi
Pictures and Specifications of T3030 DDL trailer brake chamber
| Double Brake Chamber Types & Specifications | |||||||||||
| Item No. | Stroke (mm) | R1 (mm) | R2 (mm) | L1 | L2 | L3 | T1 | T2 | T3 | An | (Kg |
| Push Rod Thread Length | Push Rod Thread | Air Inlet Thread | Mounting Bolt Thread | Mounting Angle included Band& Mounting Bolt | weight | ||||||
| T2024 | 64 | 110 | 88 | 220±5 | 75±5 | 50±4 | M16×1.5 | M16×1.5 | M16×1.5 | 90° | 7.78 |
| T2424 | 64 | 116 | 93 | 224±5 | 240±5 | 206±4 | 5/8″-18UNF2A | 3/8″-18NPTF | 5/8″-11UNC2A | 45° | 8.10 |
| T2424EY4 | 64 | 116 | 93 | 224±3 | 240±5 | 245±4 | 5/8″-18UNF2A | 3/8″-18NPTF | 5/8″-11UNC2A | 45° | 8.10 |
| T2424EB1 | 64 | 116 | 93 | 224±5 | 100±5 | 100±4 | M16×1.5 | M16×1.5 | M16×1.5 | 90° | 8.00 |
| T2430 | 64 | 163 | 184 | 234±5 | 240±5 | 206±4 | 5/8″-18UNF2A | 3/8″-18NPTF | 5/8″-11UNC2A | 90° | 9.20 |
| T2430MB | 64 | 163 | 184 | 230±5 | 220±5 | 188±4 | M16×1.5 | M16×1.5 | M16×1.5 | 0° | 9.20 |
| T2430MB1 | 64 | 163 | 184 | 230±5 | 240±5 | 209±4 | M16×1.5 | M16×1.5 | M16×1.5 | 45° | 9.20 |
| T2430EB1 | 64 | 163 | 184 | 230±5 | 240±5 | 207±4 | 5/8″-18UNF2A | 3/8″-18NPTF | 5/8″-11UNC2A | 45° | 9.20 |
| T2430LEB | 76.2 | 163 | 184 | 265±5 | 240±8 | 206±4 | 5/8″-18UNF2A | 3/8″-18NPTF | 5/8″-11UNC2A | 45° | 9.50 |
| T2430LMB | 76.2 | 163 | 184 | 265±5 | 240±8 | 209±4 | M16×1.5 | M16×1.5 | M16×1.5 | 45° | 9.50 |
| T2430LMB1 | 76.2 | 163 | 184 | 265±5 | 240±8 | 209±4 | M16×1.5 | M16×1.5 | M16×1.5 | 0° | 9.50 |
| T2430T | 68 | 163 | 184 | 260±5 | 240±5 | 206±4 | 5/8″-18UNF2A | 3/8″-18NPTF | 5/8″-11UNC2A | 45° | 9.40 |
| T2430LS | 68 | 163 | 184 | 260±5 | 240±5 | 206±4 | 5/8″-18UNF2A | 3/8″-18NPTF | 5/8″-11UNC2A | 45° | 9.50 |
| T3030 | 64 | 125 | 105 | 238±5 | 285±5 | 255±4 | 5/8″-18UNF2A | 3/8″-18NPTF | 5/8″-11UNC2A | 45° | 9.50 |
| T3030YB | 64 | 125 | 105 | 238±5 | 285±5 | 255±4 | M16×1.5 | 3/8″-18NPTF | M16×1.5 | 40° | 9.50 |
| T3030EY2 | 64 | 125 | 105 | 238±5 | 240±5 | 209±4 | 5/8″-18UNF2A | 3/8″-18NPTF | 5/8″-11UNC2A | 45° | 9.40 |
| T3030MB2 | 64 | 125 | 105 | 238±5 | 285±5 | 255±4 | M16×1.5 | M16×1.5 | M16×1.5 | 45° | 9.50 |
| T3030MY1 | 64 | 125 | 105 | 238±5 | 220±5 | 188±4 | M16×1.5 | 3/8″-18NPTF | M16×1.5 | 0° | 9.50 |
| T3030HP | 64 | 125 | 105 | 238±5 | 285±5 | 255±4 | 5/8″-18UNF2A | 3/8″-18NPTF | 5/8″-11UNC2A | 45° | 9.50 |
| T3030MB | 64 | 125 | 105 | 238±5 | 220±5 | 50 | M16×1.5 | 3/8″-18NPTF | M16×1.5 | 0° | 9.50 |
| T3030MY | 64 | 125 | 105 | 238±5 | 220±5 | 188±4 | M16×1.5 | 3/8″-18NPTF | M16×1.5 | 0° | 9.50 |
Product Description of T3030 DDL trailer brake chamber
Production process

Packaging& Shipping

Why Choose Our T3030 DDL Trailer Brake Chamber?
With decades of specialized manufacturing expertise in commercial vehicle braking systems, we deliver premium trailer brake chamber solutions designed for maximum reliability and performance in demanding transportation applications. Our T3030 DDL model represents the perfect combination of robust construction and precision engineering specifically for trailer braking systems. Here’s why fleet managers and maintenance professionals worldwide trust our product:
Heavy-Duty Steel Construction: Engineered from high-quality steel, our trailer brake chamber offers exceptional durability and impact resistance. The robust housing ensures reliable performance under maximum air pressure of 150 PSI, providing long service life in the most challenging trailer applications.
Precision Engineering for Trailers: Designed with standardized 3/8-18 NPTF air ports and 5/8-18 UNF pushrod threads, our T3030 DDL chamber guarantees perfect compatibility and seamless integration with existing trailer brake systems. The optimized dimensions (350×116×109mm) ensure ideal fitment for front position installation.
Quality Certified Excellence: Every trailer brake chamber undergoes rigorous testing and is manufactured under ISO/TS 16949 certification, ensuring compliance with international automotive quality and safety standards for commercial trailer applications.
Global Trailer Compatibility: Designed to meet diverse regional requirements, our brake chambers are trusted in markets across North America, South America, Europe, and Asia, offering reliable performance for various trailer types and configurations.
Proven Reliability: With a production capacity of 50,000 units annually and comprehensive quality control measures, we ensure consistent performance that trailer fleets can depend on for safe operations and minimal downtime.
Professional Installation and Maintenance Guide
Safety First Protocol:
Park on level ground and securely chock all wheels
Completely depressurize air systems before beginning work
Wear appropriate personal protective equipment
Follow all manufacturer safety guidelines
Installation Procedure:
System Preparation:
Fully release air pressure from brake system
Clean mounting surface thoroughly
Inspect all components for damage or wear
Chamber Installation:
Position chamber with proper orientation for front installation
Secure with 5/8-11 UNC Grade 5 mounting studs
Torque to manufacturer’s specifications (typically 35-40 ft-lbs)
Connect air lines to 3/8-18 NPTF ports
System Verification:
Check all connections for proper sealing
Verify smooth pushrod operation
Test brake function before putting trailer in service
Maintenance Best Practices:
Regular inspection every 25,000 miles or 3 months
Check for air leaks at connections and diaphragm
Monitor pushrod travel and adjustment
Inspect for corrosion or physical damage
Maintain detailed service records
Performance Benefits:
Consistent, reliable braking performance
Excellent air pressure response and modulation
Reduced maintenance requirements
Enhanced safety features for trailer applications
Long service life in demanding conditions
Technical Specifications:
Dimensions: 350 × 116 × 109 mm
Air Port Thread: 3/8-18 NPTF
Pushrod Thread: 5/8-18 UNF
Mounting Stud: 5/8-11 UNC Grade 5
Maximum Pressure: 150 PSI
Position: Front installation
Troubleshooting Tips:
If brake drag occurs, check pushrod adjustment
For air leaks, inspect diaphragm and port connections
If braking power decreases, verify stroke length
Regular cleaning prevents corrosion buildup
Professional Recommendation: Always consult trailer manufacturer’s specifications for proper installation procedures and torque values. Regular inspection of your trailer brake chamber is essential for maintaining optimal braking performance and overall trailer safety. Our chambers are designed for easy maintenance and long-term reliability in commercial trailer applications.
FAQ of T3030 DDL trailer brake chamber
Q: Are you trading company or factory?
A: We are the manufacturer.
Q: What’s the MOQ for each item?
A: Usually the MOQ is 100pcs for each type. If color box is requested, the MOQ is 200pcs.
Q: What about the delivery time?
A: It’s about 1 to 5 days for the goods have in stock, 15 to 30 days for the goods need to be manufactured based on your order.
Q: What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We’ll show you the photos of the products and packages
before you pay the balance.
Q: What is your terms of delivery?
A: EXW, FOB, CFR, CIF, DDU.
Q: What is your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent,
we can pack the goods in your branded boxes after getting your authorization letters.
Q: Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q: Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery
Q: How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.
Final Call to Action (CTA)
📞 Contact us now for bulk orders (MOQ 50 PCS) and competitive pricing!
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This Brake Chamber isn’t just a part—it’s a critical safety upgrade for any heavy-duty braking system. Get yours today!


















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