These magneto contact breaker points are replacement ignition components for Harley-Davidson Sportster XLCH motorcycles fitted with the specified Fairbanks Morse magneto. They open and close the ignition circuit as the magneto turns, helping maintain correct spark timing.

Cross-Reference OEM Part Numbers

• Harley-Davidson: 29533-55A
• Fairbanks Morse: B2437A
• S6-434

Vehicle Fitments

• Harley-Davidson Sportster XLCH, 1958–1969, 900 cc — Fairbanks Morse magneto application.