Tamiya FS-18SR Throttle Stopper Spring

Keep your engine controls responsive with this genuine Tamiya throttle stopper spring for the FS-18SR. The HC-7684302 OEM spring is a like-for-like replacement, helping to maintain consistent throttle stop behaviour and smooth running during maintenance or repair.

Use the official part number HC-7684302 to match what’s listed in your engine or kit manual and ensure you’re fitting the correct Tamiya spare. A simple swap for a worn, bent, or missing spring can improve reliability and keep your FS-18SR operating as intended.

At a Glance

• Tamiya part number HC-7684302
• Throttle stopper spring for the FS-18SR engine
• Direct OEM replacement for routine maintenance