Parts list: № Number Qty Name Options 1 BL15528 1 Pneum.Quick-Connect Coupler Next page: ST838008 Couplers, 2 Line Air Trailer Brake System, (For United Kingdom) ST786543 Accumulator / Control Valve / Air Compressor / Lines, 2 Line Air Trailer Brake System, W/ Front Wheel Brake, Attachment ST477476 Pneumatic Accumulator, Air Trailer Brake, W/ Hydraulic Cab Suspension ST786556 Attachment, Pneumatic Trailer Brake, Single Line System ST773723 Compressor Lines / Holder ST854132 Duo-Matic Quick Coupler, Air Trailer Break ST519500 Valves, Couplers, 2+1 Line Air Trailer Brake System, W/ Front Axle Brake ST465182 Couplers, 2 Line Air Trailer Brake System ST814251 Wiring Harness, Air Trailer Brake ST775022 Lines / Fittings, Pneumatic 2+1 Line Trailer Brake Valve