Extended 4.375" Starter Motor Screw for World Formula

Don't let a loose starter screw derail your race prep—the 4.375" length version provides the extra reach needed for secure mounting in Briggs World Formula setups.

• High-tensile steel build withstands torque and heat from repeated starts.
• Supersedes older 557077 models, offering improved thread engagement for stability.
• Sold individually, perfect for targeted replacements without overhauling your kit.

This essential fastener organizes your starter assembly, reducing wobble that could lead to electrical shorts or delayed ignitions. On the track, reliable starting means no lost positions at the green flag, helping you accelerate faster out of the gate. Mechanics appreciate its corrosion-resistant coating for longevity in humid pit areas. SKU: 690323 fits seamlessly, enhancing overall engine organization and speed readiness.