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Flywheel Ring Gear

Part Number : ZA-531

Original Equipment (OE) Part Interchange

GENERAL MOTORS: 499858

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-531
Name
Flywheel Ring Gear
Product Type
Flywheel Ring Gear
Flywheel Pitch (in inches)
12
Width (in inches)
0.379
Outer Diameter (in inches)
13.965
Inner Diameter (in inches)
12.907
Teeth (in inches)
166
Ring Gear Chamfer
NONE
Product Note
N/A
Balanced
N/A

Fitment Notes

Select a vehicle to view fitment notes
1979 Buick Century V8 4.9L 301cid
1980 Buick Century V8 4.3L 265cid
1980 Buick Century V8 4.9L 301cid
1981 Buick Century V8 4.3L 265cid
1978 Buick Electra All
1978 Buick Electra V8 6.6L 403cid
1978 Buick LeSabre All
1978 Buick LeSabre V8 6.6L 403cid
1979 Buick Regal All
1979 Buick Regal V8 4.9L 301cid
1978 Buick Riviera All
1978 Buick Riviera V8 6.6L 403cid
1977 Buick Skylark All
1977 Buick Skylark V8 4.9L 301cid
1976 Pontiac Bonneville V8 6.6L 400cid
1977 Pontiac Bonneville V8 6.6L 400cid
1978 Pontiac Bonneville V8 6.6L 400cid
1976 Pontiac Catalina V8 6.6L 400cid
1977 Pontiac Catalina V8 6.6L 400cid
1978 Pontiac Catalina V8 6.6L 400cid
1976 Pontiac Firebird V8 6.6L 400cid
1977 Pontiac Firebird V8 4.9L 301cid
1977 Pontiac Firebird V8 6.6L 400cid
1978 Pontiac Firebird V8 6.6L 400cid
1979 Pontiac Firebird V8 4.9L 301cid
1980 Pontiac Firebird V8 4.9L 301cid
1981 Pontiac Firebird V8 4.9L 301cid
1978 Pontiac Grand Am V8 4.9L 301cid
1979 Pontiac Grand Am V8 4.9L 301cid
1976 Pontiac Grand LeMans V8 6.6L 400cid
1977 Pontiac Grand LeMans V8 4.9L 301cid
1977 Pontiac Grand LeMans V8 6.6L 400cid
1979 Pontiac Grand LeMans V8 4.9L 301cid
1980 Pontiac Grand LeMans V8 4.9L 301cid
1981 Pontiac Grand LeMans V8 4.9L 301cid
1976 Pontiac Grand Prix V8 6.6L 400cid
1977 Pontiac Grand Prix V8 4.9L 301cid
1977 Pontiac Grand Prix V8 6.6L 400cid
1978 Pontiac Grand Prix V8 4.9L 301cid
1979 Pontiac Grand Prix V8 4.9L 301cid
1976 Pontiac Grand Safari V8 6.6L 400cid
1976 Pontiac LeMans V8 6.6L 400cid
1977 Pontiac LeMans V8 4.9L 301cid
1977 Pontiac LeMans V8 6.6L 400cid
1979 Pontiac LeMans V8 4.9L 301cid
1980 Pontiac LeMans V8 4.9L 301cid
1981 Pontiac LeMans V8 4.9L 301cid
1976 Pontiac Parisienne V8 6.6L 400cid
1977 Pontiac Ventura V8 4.9L 301cid
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