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: ST996573 Wiring Harness, Trailer Air Brake (964999 - ) ST959289 Air Trailer Brake / Control Valve / Compressor / Dual Line System, Attachment (4/4) (895484 - ) ST877869 Wiring Harness, Air Trailer Brake (673929 - 909729) ST877867 Lines / Fittings, Air Compressor (673929 - 999999), (100001 - 128474) ST854131 Attachment, Duo-Matic Quick Coupler, Air Trailer Break ST1041967 Pneumatic Accumulator, Air Trailer Brake (128475 - 673928) ST959281 Air Trailer Brake / Control Valve / Compressor / Dual Line System, Attachment (3/4) (895484 - ) ST991569 Compressed Air Reservoir / Pneumatic Accumulator, Air Trailer Brake, W/ Cab Cleaning Function (673929 - 999999), (100001 - 128474) ST990601 Lines / Fittings, Compressed Air Reservoir, W/ Cab Cleaning Function (673929 - 999999), (100001 - 128474) ST959275 Air Trailer Brake / Control Valve / Compressor / Dual Line System, Attachment (2/4) (895484 - )