---
product_id: 18727572
title: "Estes 9753 Pack of Two 24-Millimeter to 29-Millimeter Engine Adapters, Paper Motor Adapters, Rocket Model Accessories for Ages 10+"
brand: "estes"
price: "$22.72"
currency: USD
in_stock: true
reviews_count: 8
category: "Estes"
url: https://www.desertcart.us/products/18727572-estes-9753-pack-of-two-24-millimeter-to-29-millimeter
store_origin: US
region: United States of America
---

# Fits Estes C11, D, E, E30 engines Reusable & easy snap-fit design 24mm to 29mm engine adapter Estes 9753 Pack of Two 24-Millimeter to 29-Millimeter Engine Adapters, Paper Motor Adapters, Rocket Model Accessories for Ages 10+

**Brand:** estes
**Price:** $22.72
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your rocket game — adapt, launch, and soar beyond limits!

## Quick Answers

- **What is this?** Estes 9753 Pack of Two 24-Millimeter to 29-Millimeter Engine Adapters, Paper Motor Adapters, Rocket Model Accessories for Ages 10+ by estes
- **How much does it cost?** $22.72 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/18727572-estes-9753-pack-of-two-24-millimeter-to-29-millimeter)

## Best For

- estes enthusiasts

## Why This Product

- Trusted estes brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted Estes Quality:** Backed by decades of aerospace innovation, ensuring reliable and safe rocket launches every time.
- • **Durable & Reusable Build:** Crafted from sturdy plastic, these adapters snap together for quick installation and multiple launches.
- • **Compact & Lightweight Design:** At just 1.44 ounces, these adapters add minimal weight while maximizing performance.
- • **Optimized STEM Learning Tool:** Perfect for hands-on aerospace education, enabling experimentation with thrust and flight dynamics.
- • **Universal Engine Compatibility:** Seamlessly use 24mm motors in 29mm rocket mounts for ultimate flight flexibility.

## Overview

The Estes 9753 Pack of Two 24mm to 29mm Engine Adapters offers model rocket enthusiasts a versatile, reusable solution to fit smaller 24mm engines into 29mm mounts. Designed for ages 10+, these durable plastic adapters support a range of Estes composite engines (C11, D, E, E30) and RMS motor systems, enabling enhanced experimentation and STEM learning. Lightweight and easy to install, they ensure consistent thrust and flight stability without modifying your rocket, making them an essential accessory for both beginners and advanced rocketeers.

## Description

The Estes 24-Millimeter to 29-Millimeter Engine Adapters provide flexibility and innovation for model-rocket builders who love to experiment. Designed for aerospace enthusiasts at all levels, these precision-built orange adapters let you use 24-millimeter engines in rockets designed for 29-millimeter motors, giving you more versatility for your next STEM rocketry project.Ideal for STEM education, engineering classrooms, or aerospace learning programs, this adapter set encourages experimentation with propulsion, thrust, and stability. Builders can safely explore how different engine configurations affect flight performance, enabling hands-on learning in physics, engineering, and aerospace principles. It can adapt 29-millimeter model rockets for use in Estes C11, D, E, and E30 composite engines, as well as other 24-millimeter composite single-use and RMS motor systems, without requiring you to modify your rocket.Built from durable, lightweight materials, the Estes 24-Millimeter to 29-Millimeter Engine Adapters are reusable and include 2 easy-to-install engine adapters, ensuring consistent reliability across multiple launches. Perfect for both students and seasoned rocketeers, this pack is an essential accessory for those who love testing, optimizing, and understanding real-world flight mechanics. Always follow the NAR (National Association of Rocketry) model-rocket safety code during rocket kit operations.Estes rocket kits are built from the highest-quality components and designed around the unforgettable experience of pressing “launch.” Our hobby and STEM educational science products range across all skill levels, interests, and power levels. Unleash the space dreamer and science enthusiast in you with an Estes model rocket!

Review: Easy way to fly 24mm motors in 29mm mounts! - I bought this set so I can fly my Estes Prowler and Majestic kits from smaller fields with E12-4 motors. These adapters are super easy to use. Each has two halves with an outside flange at one end. Load your motor inside one half with the nozzle at the flanged end, then snap the other half over it. It's now ready to slide into your 29mm mount. The flange will prevent loading the motor in backwards and serves as a thrust ring. Now just screw on the retainer cap, or if you're using it in other than an Estes rocket; snap the motor clip over the end. That's it! MUCH FASTER than paper adapters and masking tape!! They've even included a heavy paper spacer to put in front of the motor if you're using the shorter "D" motors. Includes 2 complete adapters with spacers for this price. Every mid-power flyer should have a set of these adapters. It's especially good for a way to fly your Estes Pro Series II rockets on smaller fields.
Review: Great for converting to sized engines - Works great for using different sized model rocket engines.

## Features

- ESSENTIAL MODEL-ROCKET ENGINE ADAPTER PACK: Estes rocket model kits can perform high-flying feats when equipped with the right engine configuration. Our 24-Millimeter to 29-Millimeter Engine Adapters pack includes 2 reusable orange model adapter tubes that allow you to use 24-millimeter engines and other RMS motor systems in rockets made for 29-millimeter motors. Built from durable materials, each adapter provides flexibility for a variety of educational and experimental flight setups without requiring you to modify your rocket.
- VERSATILE FLIGHT PERFORMANCE: Our 24-Millimeter to 29-Millimeter Engine Adapters enable compatibility between different engine sizes, such as Estes C11, D, E, and E30 composite engines, allowing you to use them in a 29-millimeter mount. This pack helps builders explore multiple propulsion levels and evaluate flight performance safely, offering a reliable and reusable component that supports consistent thrust, balance, and altitude optimization for STEM model rocket projects.
- IMPORTANT LAUNCH NECESSITY: Whether you’re working with a beginner rocket-building kit or an advanced-level model, this adapter pack belongs in every rocket-building kit. It ensures greater experimentation opportunities, making it ideal for customizing flight patterns, engine power, and launch results in educational aerospace lessons.
- SAFETY FIRST, FUN ALWAYS: Our rockets and rocket launch accessories are designed to be used with the NAR (National Association of Rocketry) model-rocket safety code. Always ensure you have an appropriate launch site, stand back at least 15 ft., insert the safety key, issue a countdown, and then you can let your rocket fly!
- WE IGNITE IMAGINATIONS: Since 1958, Estes has created educational rocket kits and accessories designed for an unforgettable launch experience. As a family-owned company, we have grown to offer exciting STEM products that engage aspiring rocketeers and the future minds of aerospace.we have grown to offer exciting STEM products that engage aspiring rocketeers and the future minds of aerospace.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00TKBN3EA |
| Age Range (Description) | Kid |
| Art Craft Kit Type | Model Rocket Building Kit |
| Brand | Estes |
| Color | Red |
| Customer Reviews | 4.1 4.1 out of 5 stars (96) |
| Global Trade Identification Number | 00047776097537 |
| Included Components | Estes Rockets 9753 24mm to 29mm Motor Adapter, for Model Rockets, (2 Sets) |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.44 ounces |
| Item dimensions L x W x H | 4.5 x 0.02 x 1.14 inches |
| Item model number | 9753 |
| Manufacturer | Estes |
| Manufacturer recommended age | 10 - 16 years |
| Material | Plastic |
| Model Name | 9753 24mm to 29mm Motor Adapter, for Model Rockets, (2 Sets) |
| Number of Pieces | 2 |
| Product Dimensions | 4.5 x 0.02 x 1.14 inches |
| Release date | January 1, 2018 |
| Seasons | All Seasons |
| Set Name | Set of 2 |
| Size | 24 mm to 29 mm |
| Special Feature | Adapts 24mm engines to 29mm casing size, Reusable adapter tubes |
| Style | Reusable |
| Theme | Rocket,Building |
| UPC | 047776097537 |

## Product Details

- **Age Range (Description):** Kid
- **Brand:** Estes
- **Color:** Red
- **Item dimensions L x W x H:** 4.5 x 0.02 x 1.14 inches
- **Theme:** Rocket,Building

## Images

![Estes 9753 Pack of Two 24-Millimeter to 29-Millimeter Engine Adapters, Paper Motor Adapters, Rocket Model Accessories for Ages 10+ - Image 1](https://m.media-amazon.com/images/I/71SAj9-9cUL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy way to fly 24mm motors in 29mm mounts!
*by D***T on October 10, 2019*

I bought this set so I can fly my Estes Prowler and Majestic kits from smaller fields with E12-4 motors. These adapters are super easy to use. Each has two halves with an outside flange at one end. Load your motor inside one half with the nozzle at the flanged end, then snap the other half over it. It's now ready to slide into your 29mm mount. The flange will prevent loading the motor in backwards and serves as a thrust ring. Now just screw on the retainer cap, or if you're using it in other than an Estes rocket; snap the motor clip over the end. That's it! MUCH FASTER than paper adapters and masking tape!! They've even included a heavy paper spacer to put in front of the motor if you're using the shorter "D" motors. Includes 2 complete adapters with spacers for this price. Every mid-power flyer should have a set of these adapters. It's especially good for a way to fly your Estes Pro Series II rockets on smaller fields.

### ⭐⭐⭐⭐⭐ Great for converting to sized engines
*by R***E on January 14, 2026*

Works great for using different sized model rocket engines.

### ⭐⭐⭐⭐ a little tight on the composite disposable engines
*by J***S on May 18, 2021*

This works great for using an e engine in a 29 mm size motor tube. IT also has an adapter ring for D engine which are shorter in legnth to keep the engine from sliding around

## Frequently Bought Together

- Estes Motor Adapter Model Kit, 24mm/29mm
- ESTES 302317 Standard to D Engine Adapter ESTT2317
- Estes 2231 Fin Alignment Guide Model Kit , Color Varies

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-28*