Plugs for Standard Engines - (40 pack)

Never be without the essentials on launch day! Estes Plugs for Standard Engines keep your starters securely in place, ensuring reliable ignition and smooth liftoffs. Designed specifically for Estes standard engines, these plugs are an indispensable part of every rocketeer’s kit.

Each pack includes 40 plugs—yellow for 1/2A6, A8, and B4 engines, and magenta for B6 and C6 engines—so you’ll always have the right plug for the job. Stock up now and make sure you’re ready for countless launches without interruption.

• Secure Starter Hold: Keeps starters firmly in place for consistent ignition.
• Color-Coded Plugs: Yellow for 1/2A6, A8, B4 and magenta for B6, C6.
• Reliable Launch Prep: Helps build engine pressure for proper thrust.
• 40-Pack Value: Plenty of spares to cover multiple launches.
• Compatible with Standard Engines: Works with all Estes standard engine sizes.