Parts list: № Number Qty Name Options 1 AL68571 1 Hitch Coupling (Red) (2 - Line System) 2 AL217439 1 Quick Coupler (Yellow) (2 - Line System) SUB FOR AL68572 APPL 3 L215131 1 Screen USE WITH AL217439 Next page: ST475362 Couplers, 2 Line Air Trailer Brake System, (For United Kingdom) ST477429 Couplers, 2+1 Line Air Trailer Brake System ST757002 Air Trailer Brake / Control Valve / Compressor / Dual Line System, Attachment ST833480 Air Brake Reservoir, Pneumatic Accumulator, W/O Mechanical Cab Suspension, 15 L ST833512 Valves / Couplers, 2 Lines Air Trailer Brake System, W/ Additional Front Axle Brake PICT-RII.1 RII Air Trailer Brakes System