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Superior Quality Parts: Heavy Duty Pros parts meet and exceed the OEM quality specifications.
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Head Diameter 1.693 Length 4.837 Seat Angle 45 Stem Diameter 0.3526 Stem Type 1G Tip Length 0.2200
3054 Engines 5YS1-13498
3054 Engines 5YS13499-UP
3056 Engines 7MS1-2098
3056 Engines 7MS12099-UP