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Flywheel Ring Gear

Part Number : ZA-509

Original Equipment (OE) Part Interchange

AMC: 3179741

Features & Benefits

The ring gear has teeth which engage with the starter motor allowing the engine to crank over and start. Repeated engagement with the starter results in worn or broken ring gear teeth. Once this is diagnosed, the ring gear must be replaced. ATP ring gears are designed to fit and function just like the original part to ensure durability and long life.
  • Manufactured to meet or exceed original equipment specs
  • Eliminates grinding from damaged teeth
  • Increases starter drive life

Warranty

For more information about the warranty View Details

Specifications

Application

Part Number
ZA-509
Name
Flywheel Ring Gear
Product Type
Flywheel Ring Gear
Flywheel Pitch
14-Dec
Width (in inches)
0.42
Outer Diameter (in inches)
13.83
Inner Diameter (in inches)
12.82
Teeth (in inches)
164
Ring Gear Chamfer
NONE
Product Note
N/A
Balanced
N/A

Fitment Notes

Select a vehicle to view fitment notes
1978 American Motors AMX L6 4.2L 258cid
1978 American Motors AMX V8 5.0L 304cid
1979 American Motors AMX L6 4.2L 258cid
1979 American Motors AMX V8 5.0L 304cid
1980 American Motors AMX L6 4.2L 258cid
1973 American Motors Ambassador All
1973 American Motors Ambassador V8 5.0L 304cid
1973 American Motors Ambassador V8 5.9L 360cid
1973 American Motors Ambassador V8 6.6L 401cid
1974 American Motors Ambassador All
1974 American Motors Ambassador V8 5.0L 304cid
1974 American Motors Ambassador V8 5.9L 360cid
1974 American Motors Ambassador V8 6.6L 401cid
1978 American Motors Concord All
1978 American Motors Concord L6 3.8L 232cid
1978 American Motors Concord L6 4.2L 258cid
1978 American Motors Concord V8 5.0L 304cid
1979 American Motors Concord All
1979 American Motors Concord L6 3.8L 232cid
1979 American Motors Concord L6 4.2L 258cid
1979 American Motors Concord V8 5.0L 304cid
1980 American Motors Concord All
1980 American Motors Concord L6 4.2L 258cid
1981 American Motors Concord All
1981 American Motors Concord L6 4.2L 258cid
1982 American Motors Concord All
1982 American Motors Concord L6 4.2L 258cid
1983 American Motors Concord All
1983 American Motors Concord L6 4.2L 258cid
1980 American Motors Eagle L6 4.2L 258cid
1981 American Motors Eagle L4 2.5L 151cid
1981 American Motors Eagle L6 4.2L 258cid
1982 American Motors Eagle L4 2.5L 151cid
1982 American Motors Eagle L6 4.2L 258cid
1983 American Motors Eagle L4 2.5L 150cid
1983 American Motors Eagle L4 2.5L 151cid
1983 American Motors Eagle L6 4.2L 258cid
1984 American Motors Eagle L4 2.5L 150cid
1984 American Motors Eagle L6 4.2L 258cid
1985 American Motors Eagle L6 4.2L 258cid
1986 American Motors Eagle L6 4.2L 258cid
1987 American Motors Eagle L6 4.2L 258cid
1988 American Motors Eagle L6 4.2L 258cid
1973 American Motors Gremlin All
1973 American Motors Gremlin L6 3.8L 232cid
1973 American Motors Gremlin L6 4.2L 258cid
1973 American Motors Gremlin V8 5.0L 304cid
1974 American Motors Gremlin All
1974 American Motors Gremlin L6 3.8L 232cid
1974 American Motors Gremlin L6 4.2L 258cid
1974 American Motors Gremlin V8 5.0L 304cid
1975 American Motors Gremlin All
1975 American Motors Gremlin L6 3.8L 232cid
1975 American Motors Gremlin L6 4.2L 258cid
1975 American Motors Gremlin V8 5.0L 304cid
1976 American Motors Gremlin All
1976 American Motors Gremlin L6 3.8L 232cid
1976 American Motors Gremlin L6 4.2L 258cid
1976 American Motors Gremlin V8 5.0L 304cid
1977 American Motors Gremlin L6 3.8L 232cid
1977 American Motors Gremlin L6 4.2L 258cid
1978 American Motors Gremlin L6 3.8L 232cid
1978 American Motors Gremlin L6 4.2L 258cid
1972 American Motors Hornet All
1973 American Motors Hornet All
1973 American Motors Hornet L6 3.8L 232cid
1973 American Motors Hornet L6 4.2L 258cid
1973 American Motors Hornet V8 5.0L 304cid
1973 American Motors Hornet V8 5.9L 360cid
1974 American Motors Hornet All
1974 American Motors Hornet L6 3.8L 232cid
1974 American Motors Hornet L6 4.2L 258cid
1974 American Motors Hornet V8 5.0L 304cid
1974 American Motors Hornet V8 5.9L 360cid
1975 American Motors Hornet All
1975 American Motors Hornet L6 3.8L 232cid
1975 American Motors Hornet L6 4.2L 258cid
1975 American Motors Hornet V8 5.0L 304cid
1976 American Motors Hornet All
1976 American Motors Hornet L6 3.8L 232cid
1976 American Motors Hornet L6 4.2L 258cid
1976 American Motors Hornet V8 5.0L 304cid
1977 American Motors Hornet All
1977 American Motors Hornet L6 3.8L 232cid
1977 American Motors Hornet L6 4.2L 258cid
1977 American Motors Hornet V8 5.0L 304cid
1973 American Motors Javelin L6 3.8L 3802cc 232cid
1973 American Motors Javelin L6 4.2L 4228cc 258cid
1973 American Motors Javelin V8 5.0L 4982cc 304cid
1973 American Motors Javelin V8 5.0L 4983cc 304cid
1973 American Motors Javelin V8 5.9L 5899cc 360cid
1973 American Motors Javelin V8 5.9L 5900cc 360cid
1973 American Motors Javelin V8 6.6L 6572cc 401cid
1974 American Motors Javelin L6 3.8L 3802cc 232cid
1974 American Motors Javelin L6 4.2L 4228cc 258cid
1974 American Motors Javelin V8 5.0L 4982cc 304cid
1974 American Motors Javelin V8 5.0L 4983cc 304cid
1974 American Motors Javelin V8 5.9L 5899cc 360cid
1974 American Motors Javelin V8 5.9L 5900cc 360cid
1974 American Motors Javelin V8 6.6L 6572cc 401cid
1972 American Motors Matador All
1973 American Motors Matador All
1973 American Motors Matador L6 3.8L 232cid
1973 American Motors Matador L6 4.2L 258cid
1973 American Motors Matador V8 5.0L 304cid
1973 American Motors Matador V8 5.9L 360cid
1973 American Motors Matador V8 6.6L 401cid
1974 American Motors Matador All
1974 American Motors Matador L6 3.8L 232cid
1974 American Motors Matador L6 4.2L 258cid
1974 American Motors Matador V8 5.0L 304cid
1974 American Motors Matador V8 5.9L 360cid
1974 American Motors Matador V8 6.6L 401cid
1975 American Motors Matador All
1975 American Motors Matador L6 4.2L 258cid
1975 American Motors Matador V8 5.0L 304cid
1975 American Motors Matador V8 5.9L 360cid
1975 American Motors Matador V8 6.6L 401cid
1976 American Motors Matador All
1976 American Motors Matador L6 4.2L 258cid
1976 American Motors Matador V8 5.0L 304cid
1976 American Motors Matador V8 5.9L 360cid
1976 American Motors Matador V8 6.6L 401cid
1977 American Motors Matador All
1977 American Motors Matador L6 4.2L 258cid
1977 American Motors Matador V8 5.0L 304cid
1977 American Motors Matador V8 5.9L 360cid
1978 American Motors Matador L6 4.2L 258cid
1978 American Motors Matador V8 5.9L 360cid
1975 American Motors Pacer L6 3.8L 232cid
1975 American Motors Pacer L6 4.2L 258cid
1976 American Motors Pacer L6 3.8L 232cid
1976 American Motors Pacer L6 4.2L 258cid
1977 American Motors Pacer L6 3.8L 232cid
1977 American Motors Pacer L6 4.2L 258cid
1978 American Motors Pacer All
1978 American Motors Pacer L6 3.8L 232cid
1978 American Motors Pacer L6 4.2L 258cid
1978 American Motors Pacer V8 5.0L 304cid
1979 American Motors Pacer All
1979 American Motors Pacer L6 4.2L 258cid
1979 American Motors Pacer V8 5.0L 304cid
1980 American Motors Pacer All
1980 American Motors Pacer L6 4.2L 258cid
1979 American Motors Spirit All
1979 American Motors Spirit L6 3.8L 232cid
1979 American Motors Spirit L6 4.2L 258cid
1979 American Motors Spirit V8 5.0L 304cid
1980 American Motors Spirit All
1980 American Motors Spirit L6 4.2L 258cid
1981 American Motors Spirit All
1981 American Motors Spirit L6 4.2L 258cid
1982 American Motors Spirit All
1982 American Motors Spirit L6 4.2L 258cid
1983 American Motors Spirit All
1983 American Motors Spirit L6 4.2L 258cid
1972 Jeep CJ5 All
1972 Jeep CJ5 L6 3.8L 232cid
1972 Jeep CJ5 L6 4.2L 258cid
1972 Jeep CJ5 V8 5.0L 304cid
1973 Jeep CJ5 All
1973 Jeep CJ5 L6 3.8L 232cid
1973 Jeep CJ5 L6 4.2L 258cid
1973 Jeep CJ5 V8 5.0L 304cid
1974 Jeep CJ5 All
1974 Jeep CJ5 L6 3.8L 232cid
1974 Jeep CJ5 L6 4.2L 258cid
1974 Jeep CJ5 V8 5.0L 304cid
1975 Jeep CJ5 All
1975 Jeep CJ5 L6 3.8L 232cid
1975 Jeep CJ5 L6 4.2L 258cid
1975 Jeep CJ5 V8 5.0L 304cid
1976 Jeep CJ5 All
1976 Jeep CJ5 L6 3.8L 232cid
1976 Jeep CJ5 L6 4.2L 258cid
1976 Jeep CJ5 V8 5.0L 304cid
1977 Jeep CJ5 All
1977 Jeep CJ5 L6 3.8L 232cid
1977 Jeep CJ5 L6 4.2L 258cid
1977 Jeep CJ5 V8 5.0L 304cid
1978 Jeep CJ5 All
1978 Jeep CJ5 L6 3.8L 232cid
1978 Jeep CJ5 L6 4.2L 258cid
1978 Jeep CJ5 V8 5.0L 304cid
1979 Jeep CJ5 All
1979 Jeep CJ5 L6 4.2L 258cid
1979 Jeep CJ5 V8 5.0L 304cid
1980 Jeep CJ5 All
1980 Jeep CJ5 L4 2.5L 151cid
1980 Jeep CJ5 L6 4.2L 258cid
1980 Jeep CJ5 V8 5.0L 304cid
1981 Jeep CJ5 L6 4.2L 258cid
1981 Jeep CJ5 V8 5.0L 304cid
1982 Jeep CJ5 L6 4.2L 258cid
1983 Jeep CJ5 L6 4.2L 258cid
1972 Jeep CJ6 All
1972 Jeep CJ6 L6 3.8L 232cid
1972 Jeep CJ6 L6 4.2L 258cid
1972 Jeep CJ6 V8 5.0L 304cid
1973 Jeep CJ6 All
1973 Jeep CJ6 L6 3.8L 232cid
1973 Jeep CJ6 L6 4.2L 258cid
1973 Jeep CJ6 V8 5.0L 304cid
1974 Jeep CJ6 All
1974 Jeep CJ6 L6 3.8L 232cid
1974 Jeep CJ6 L6 4.2L 258cid
1974 Jeep CJ6 V8 5.0L 304cid
1975 Jeep CJ6 All
1975 Jeep CJ6 L6 3.8L 232cid
1975 Jeep CJ6 L6 4.2L 258cid
1975 Jeep CJ6 V8 5.0L 304cid
1976 Jeep CJ7 All
1976 Jeep CJ7 L6 3.8L 232cid
1976 Jeep CJ7 L6 4.2L 258cid
1976 Jeep CJ7 V8 5.0L 304cid
1977 Jeep CJ7 All
1977 Jeep CJ7 L6 3.8L 232cid
1977 Jeep CJ7 L6 4.2L 258cid
1977 Jeep CJ7 V8 5.0L 304cid
1978 Jeep CJ7 All
1978 Jeep CJ7 L6 3.8L 232cid
1978 Jeep CJ7 L6 4.2L 258cid
1978 Jeep CJ7 V8 5.0L 304cid
1979 Jeep CJ7 All
1979 Jeep CJ7 L6 4.2L 258cid
1979 Jeep CJ7 V8 5.0L 304cid
1980 Jeep CJ7 L6 4.2L 258cid
1980 Jeep CJ7 V8 5.0L 304cid
1981 Jeep CJ7 L6 4.2L 258cid
1981 Jeep CJ7 V8 5.0L 304cid
1982 Jeep CJ7 L6 4.2L 258cid
1983 Jeep CJ7 L6 4.2L 258cid
1984 Jeep CJ7 L6 4.2L 258cid
1985 Jeep CJ7 L6 4.2L 258cid
1986 Jeep CJ7 L6 4.2L 258cid
1974 Jeep Cherokee L6 4.2L 258cid
1974 Jeep Cherokee V8 5.9L 360cid
1974 Jeep Cherokee V8 6.6L 401cid
1975 Jeep Cherokee L6 4.2L 258cid
1975 Jeep Cherokee V8 5.9L 360cid
1975 Jeep Cherokee V8 6.6L 401cid
1976 Jeep Cherokee L6 4.2L 258cid
1976 Jeep Cherokee V8 5.9L 360cid
1976 Jeep Cherokee V8 6.6L 401cid
1977 Jeep Cherokee L6 4.2L 258cid
1977 Jeep Cherokee V8 5.9L 360cid
1977 Jeep Cherokee V8 6.6L 401cid
1978 Jeep Cherokee L6 4.2L 258cid
1978 Jeep Cherokee V8 5.9L 360cid
1978 Jeep Cherokee V8 6.6L 401cid
1979 Jeep Cherokee All
1979 Jeep Cherokee L6 4.2L 258cid
1979 Jeep Cherokee V8 5.9L 360cid
1980 Jeep Cherokee All
1980 Jeep Cherokee L6 4.2L 258cid
1980 Jeep Cherokee V8 5.9L 360cid
1981 Jeep Cherokee All
1981 Jeep Cherokee L6 4.2L 258cid
1981 Jeep Cherokee V8 5.9L 360cid
1982 Jeep Cherokee All
1982 Jeep Cherokee L6 4.2L 258cid
1982 Jeep Cherokee V8 5.9L 360cid
1983 Jeep Cherokee All
1983 Jeep Cherokee L6 4.2L 258cid
1983 Jeep Cherokee V8 5.9L 360cid
1987 Jeep Cherokee L6 4.0L 242cid
1988 Jeep Cherokee L6 4.0L 242cid
1989 Jeep Cherokee L6 4.0L 242cid
1990 Jeep Cherokee L6 4.0L 242cid
1991 Jeep Cherokee L6 4.0L 242cid
1992 Jeep Cherokee L6 4.0L 242cid
1993 Jeep Cherokee L6 4.0L 242cid
1994 Jeep Cherokee L6 4.0L 242cid
1995 Jeep Cherokee L6 4.0L 242cid
1996 Jeep Cherokee L6 4.0L 242cid
1997 Jeep Cherokee L6 4.0L 242cid
1998 Jeep Cherokee L6 4.0L 242cid
1987 Jeep Comanche L6 4.0L 242cid
1988 Jeep Comanche L6 4.0L 242cid
1989 Jeep Comanche L6 4.0L 242cid
1990 Jeep Comanche L6 4.0L 242cid
1991 Jeep Comanche L6 4.0L 242cid
1992 Jeep Comanche L6 4.0L 242cid
1973 Jeep Commando L6 4.2L 4228cc 258cid
1972 Jeep DJ5 L6 3.8L 232cid
1973 Jeep DJ5 L6 3.8L 232cid
1973 Jeep DJ5 L6 4.2L 258cid
1974 Jeep DJ5 L6 3.8L 232cid
1974 Jeep DJ5 L6 4.2L 258cid
1974 Jeep DJ5 V8 5.0L 304cid
1993 Jeep Grand Cherokee L6 4.0L 242cid
1994 Jeep Grand Cherokee L6 4.0L 242cid
1972 Jeep J-2500 L6 4.2L 258cid
1972 Jeep J-2500 V8 5.0L 304cid
1972 Jeep J-2500 V8 5.9L 360cid
1973 Jeep J-2500 L6 4.2L 258cid
1973 Jeep J-2500 V8 5.9L 360cid
1972 Jeep J-2600 L6 4.2L 258cid
1972 Jeep J-2600 V8 5.0L 304cid
1972 Jeep J-2600 V8 5.9L 360cid
1973 Jeep J-2600 L6 4.2L 258cid
1973 Jeep J-2600 V8 5.9L 360cid
1974 Jeep J10 L6 4.2L 258cid
1974 Jeep J10 V8 5.9L 360cid
1974 Jeep J10 V8 6.6L 401cid
1974 Jeep J10 V8 6.6L 6571cc 401cid
1974 Jeep J10 V8 6.6L 6572cc 401cid
1975 Jeep J10 L6 4.2L 258cid
1975 Jeep J10 V8 5.9L 360cid
1975 Jeep J10 V8 6.6L 401cid
1976 Jeep J10 L6 4.2L 258cid
1976 Jeep J10 V8 5.9L 360cid
1976 Jeep J10 V8 6.6L 401cid
1977 Jeep J10 L6 4.2L 258cid
1977 Jeep J10 V8 5.9L 360cid
1977 Jeep J10 V8 6.6L 401cid
1978 Jeep J10 L6 4.2L 258cid
1978 Jeep J10 V8 5.9L 360cid
1978 Jeep J10 V8 6.6L 401cid
1979 Jeep J10 All
1979 Jeep J10 L6 4.2L 258cid
1979 Jeep J10 V8 5.9L 360cid
1980 Jeep J10 All
1980 Jeep J10 L6 4.2L 258cid
1980 Jeep J10 V8 5.9L 360cid
1981 Jeep J10 All
1981 Jeep J10 L6 4.2L 258cid
1981 Jeep J10 V8 5.9L 360cid
1982 Jeep J10 All
1982 Jeep J10 L6 4.2L 258cid
1982 Jeep J10 V8 5.9L 360cid
1983 Jeep J10 All
1983 Jeep J10 L6 4.2L 258cid
1983 Jeep J10 V8 5.9L 360cid
1984 Jeep J10 L6 4.2L 258cid
1985 Jeep J10 L6 4.2L 258cid
1986 Jeep J10 L6 4.2L 258cid
1987 Jeep J10 L6 4.2L 258cid
1974 Jeep J20 L6 4.2L 258cid
1974 Jeep J20 V8 5.9L 360cid
1974 Jeep J20 V8 5.9L 5899cc 360cid
1974 Jeep J20 V8 5.9L 5900cc 360cid
1974 Jeep J20 V8 6.6L 401cid
1975 Jeep J20 V8 5.9L 360cid
1975 Jeep J20 V8 6.6L 401cid
1976 Jeep J20 L6 4.2L 258cid
1976 Jeep J20 V8 5.9L 360cid
1976 Jeep J20 V8 6.6L 401cid
1977 Jeep J20 V8 5.9L 360cid
1977 Jeep J20 V8 6.6L 401cid
1978 Jeep J20 V8 5.9L 360cid
1978 Jeep J20 V8 6.6L 401cid
1979 Jeep J20 V8 5.9L 360cid
1980 Jeep J20 V8 5.9L 360cid
1981 Jeep J20 V8 5.9L 360cid
1982 Jeep J20 V8 5.9L 360cid
1983 Jeep J20 V8 5.9L 360cid
1972 Jeep Jeepster L6 3.8L 232cid
1972 Jeep Jeepster L6 4.2L 258cid
1972 Jeep Jeepster L6 4.2L 4228cc 258cid
1972 Jeep Jeepster V8 5.0L 304cid
1973 Jeep Jeepster L6 3.8L 232cid
1973 Jeep Jeepster L6 4.2L 258cid
1973 Jeep Jeepster V8 5.0L 304cid
1981 Jeep Scrambler L6 4.2L 258cid
1982 Jeep Scrambler L6 4.2L 258cid
1983 Jeep Scrambler L6 4.2L 258cid
1984 Jeep Scrambler L6 4.2L 258cid
1985 Jeep Scrambler L6 4.2L 258cid
1972 Jeep Wagoneer L6 4.2L 258cid
1972 Jeep Wagoneer V8 5.9L 360cid
1973 Jeep Wagoneer L6 4.2L 258cid
1973 Jeep Wagoneer V8 5.9L 360cid
1974 Jeep Wagoneer V8 5.9L 360cid
1974 Jeep Wagoneer V8 6.6L 401cid
1975 Jeep Wagoneer V8 5.9L 360cid
1975 Jeep Wagoneer V8 6.6L 401cid
1976 Jeep Wagoneer V8 5.9L 360cid
1976 Jeep Wagoneer V8 6.6L 401cid
1977 Jeep Wagoneer V8 5.9L 360cid
1977 Jeep Wagoneer V8 6.6L 401cid
1978 Jeep Wagoneer V8 5.9L 360cid
1978 Jeep Wagoneer V8 6.6L 401cid
1979 Jeep Wagoneer V8 5.9L 360cid
1980 Jeep Wagoneer All
1980 Jeep Wagoneer L6 4.2L 258cid
1980 Jeep Wagoneer V8 5.9L 360cid
1981 Jeep Wagoneer All
1981 Jeep Wagoneer L6 4.2L 258cid
1981 Jeep Wagoneer V8 5.9L 360cid
1982 Jeep Wagoneer All
1982 Jeep Wagoneer L6 4.2L 258cid
1982 Jeep Wagoneer V8 5.9L 360cid
1983 Jeep Wagoneer All
1983 Jeep Wagoneer L6 4.2L 258cid
1983 Jeep Wagoneer V8 5.9L 360cid
1987 Jeep Wagoneer L6 4.0L 242cid
1988 Jeep Wagoneer L6 4.0L 242cid
1989 Jeep Wagoneer L6 4.0L 242cid
1990 Jeep Wagoneer L6 4.0L 242cid
1987 Jeep Wrangler L6 4.2L 258cid
1988 Jeep Wrangler L6 4.2L 258cid
1989 Jeep Wrangler L6 4.2L 258cid
1990 Jeep Wrangler L6 4.2L 258cid
1991 Jeep Wrangler L6 4.0L 242cid
1992 Jeep Wrangler L6 4.0L 242cid
1993 Jeep Wrangler L6 4.0L 242cid
1994 Jeep Wrangler L6 4.0L 242cid
1995 Jeep Wrangler L6 4.0L 242cid
1997 Jeep Wrangler L6 4.0L 242cid
1998 Jeep Wrangler L6 4.0L 242cid
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