Collection: D Engines

Estes D Model Rocket Engines

Powerful 24mm Engines for Bigger Rockets and Higher Flights

Estes D12-7 Model Rocket Engines 2 Pack

Boost your rocket’s performance with Estes D model rocket engines. As the entry point into 24mm mid-power motors, D engines offer more thrust and altitude than standard 18mm engines—making them a great choice for larger rockets or rocketeers ready to level up from C-class motors.

Perfect for Pro Series II and other compatible rockets. Estes D engines like the D12-3 and D12-5 are designed for rockets with 24mm motor mounts and can handle heavier models with ease. These engines offer extended burn times and increased lift capacity, ideal for mid- to large-sized launches.

Complete engine packs for ready-to-launch convenience. Each D engine pack includes igniters and recovery wadding plugs, making launch prep easy and efficient. Estes engines are known for their consistent ignition and reliable performance—whether you're flying solo or with a rocketry club.

Designed for intermediate and advanced model rocket flyers. Estes D-class engines are trusted by educators, hobbyists, and STEM programs for their safety, performance, and compatibility. Browse the full selection of 24mm D engines and give your rocket the power it needs to reach new heights.