The ASP DL1582U (other PN: Strattec 608317) is a specific uncoded door lock cylinder. This is used for General Motors (GM) vehicles. It is an uncoded set that is intended to be keyed to match a customer's existing key. 

• Lock Style: Medium Style (With Secondary Key Groove)
• Uses Face Cap; RP6036 (P-41-201)
• Tumbler Series: P-41-101/105
• Finish: Chrome 
• Keyway: GMA/K (GM Single-Sided)

Compatible with the following: 

• 1979 - 1981 Chevrolet Camaro 
• 1979 - 1981 Pontiac Firebird 
• 1979 - 1989 Chevrolet Monte Carlo 
• 1979 - 1989 Chevrolet El Camino 
• 1979 - 1983 Chevrolet Malibu 
• 1971 - 1973 Buick Centurion 
• 1970 - 1976 Buick Electra 
• 1981 - 1987 Buick Regal 
• 1974 - 1985 Buick Riviera 
• 1982 - 1985  Cadillac El Dorado 
• 1982 - 1985 Cadillac Seville 
• 1979 - 1989 Chevrolet Monte Carlo 
• 1983 - 1988 Oldsmobile Cutlass Supreme 
• 1971 - 1976 Oldsmobile Eighty Eight