
Product Introduction
The T3030DD Spring Brake Chamber is a heavy-duty dual diaphragm air brake actuator designed for commercial trucks, trailers, and semi-trailers. Combining service braking and parking brake functions in one compact assembly, it delivers reliable braking performance under demanding operating conditions.
Manufactured with high-strength steel housing and premium rubber diaphragms, the T3030DD brake chamber provides fast response, stable braking force, and long service life, making it suitable for long-haul transportation, mining operations, and heavy-duty logistics applications.

Technical Specifications
| Item | Specification | Item | Specification |
| Product Name | Spring Brake Chamber | Model | T3030DD |
| Part Number | T3030DD | OEM Number | T3030DD |
| Product Type | Double Diaphragm Brake Chamber | Brake Size | 30/30 |
| Working Stroke | 64 mm | Working Pressure | 0.8-1.0 MPa |
| Air Port Thread | 3/8" NPT | Push Rod Thread | M16×1.5 |
| Application | Truck Brake System | Warranty | 12 Months |
Vehicle Fitment
| Vehicle Brand | Compatible Models |
| SINOTRUK HOWO | HOWO 6×4, HOWO 8×4 |
| SHACMAN | F3000, X3000, H3000 |
| FAW JIEFANG | J6P, JH6 |
| DONGFENG | Tianlong, KL |
| FOTON AUMAN | ETX, GTL |
| Trailer | FUWA, BPW, YORK Axle Trailer |
The T3030DD model is one of the most widely used 30/30 spring brake chambers for heavy trucks and trailer brake systems worldwide.
Export Markets
| Market | Coverage |
| Main Export Markets | Africa, Middle East, Central Asia, Southeast Asia, South America, Eastern Europe |
Packaging Information
| Item | Specification |
| Packaging Type | Neutral Package / Color Box / Carton Box |
| MOQ | 1 Piece |
| Customized Packaging | Available |
Payment & Shipping
| Payment Methods | Shipping Methods |
| T/T | DHL |
| L/C | FedEx |
| Western Union | UPS |
| PayPal | Air Freight |
| Alibaba Trade Assurance | Sea Freight |
Related Products Categories
| Section/System | Common Spare Parts |
| Cylinder Block & Cylinder Head | Cylinder Block, Cylinder Head, Cylinder Liner, Piston, Piston Ring, Cylinder Head Gasket |
| Crankshaft System | Crankshaft, Connecting Rod, Main Bearing, Connecting Rod Bearing, Thrust Washer |
| Valve Train | Intake Valve, Exhaust Valve, Camshaft, Rocker Arm, Valve Spring |
| Turbocharger System | Turbocharger, Turbo Repair Kit, Intercooler, Intake Pipe |
| Fuel System | Fuel Injector, Injector Nozzle, Fuel Pump, Fuel Filter |
| Cooling System | Water Pump, Thermostat, Radiator, Expansion Tank |
| Lubrication System | Oil Pump, Oil Filter, Oil Cooler, Oil Pan |
| Intake & Exhaust System | Air Filter, Air Cleaner Assembly, Exhaust Pipe, Muffler, DPF, SCR |
| Engine Electrical Parts | Starter Motor, Alternator, Sensors, Wiring Harness |
Transmission & Drivetrain Parts
| Section/System | Common Spare Parts |
| Clutch System | Clutch Disc, Pressure Plate, Release Bearing, Clutch Master Cylinder, Clutch Booster |
| Transmission System | Gearbox Assembly, Synchronizer, Gear Set, Bearing, Oil Seal, Shift Fork |
| PTO System | PTO Assembly, PTO Gear, PTO Pump, PTO Seal |
| Driveshaft System | Driveshaft Assembly, Universal Joint, Center Bearing, Slip Yoke |
| Differential System | Differential Assembly, Crown Wheel & Pinion, Differential Bearing, Repair Kit |
| Section/System | Common Spare Parts |
| Front Axle | Kingpin Kit, Steering Knuckle, Ball Joint, Tie Rod, Wheel Bearing |
| Rear Drive Axle | Axle Housing, Half Shaft, Differential Housing, Hub Bearing |
| Suspension System | Leaf Spring, Air Spring, Shock Absorber, Equalizer Beam, U-Bolt |
| Steering System | Steering Gearbox, Power Steering Pump, Drag Link, Steering Shaft |
| Brake System | Brake Drum, Brake Disc, Brake Pad, Brake Chamber, Slack Adjuster |
| Wheel Hub System | Wheel Hub, Wheel Bearing, Oil Seal, Wheel Bolt, Wheel Nut |
Cabin & Body Parts
| Section/System | Common Spare Parts |
| Cabin Assembly | Cabin Shell, Cabin Suspension, Cabin Lock, Cabin Mount |
| Dashboard System | Instrument Cluster, Dashboard Panel, Switch Assembly |
| Door System | Door Assembly, Door Lock, Door Handle, Window Regulator |
| Seat System | Driver Seat, Passenger Seat, Seat Shock Absorber |
| Air Conditioning System | AC Compressor, Condenser, Evaporator, Blower Motor |
| Electrical System | Headlamp, Tail Lamp, Fog Lamp, Wiring Harness, Relay |
| Mirror System | Rear View Mirror, Mirror Arm, Mirror Cover |
| Body Exterior Parts | Bumper, Grille, Fender, Mudguard, Step Panel |
