---
product_id: 294691814
title: "9750 29-Millimeter Motor Retainer Set, Model Rocket Engine Retainer, Rocket Model Kit Accessories for Ages 10+"
brand: "estes"
price: "€ 47.66"
currency: EUR
in_stock: true
reviews_count: 5
category: "Estes"
url: https://www.desertcart.fi/products/294691814-9750-29-millimeter-motor-retainer-set-model-rocket-engine-retainer
store_origin: FI
region: Finland
---

# heat-resistant ABS plastic 29mm engine compatibility quick load/unload design 9750 29-Millimeter Motor Retainer Set, Model Rocket Engine Retainer, Rocket Model Kit Accessories for Ages 10+

**Brand:** estes
**Price:** € 47.66
**Availability:** ✅ In Stock

## Summary

> 🚀 Lock in your launch, ignite your legacy!

## Quick Answers

- **What is this?** 9750 29-Millimeter Motor Retainer Set, Model Rocket Engine Retainer, Rocket Model Kit Accessories for Ages 10+ by estes
- **How much does it cost?** € 47.66 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/294691814-9750-29-millimeter-motor-retainer-set-model-rocket-engine-retainer)

## 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

- • **STEM-Approved Fun:** Supports safe, educational rocket building with NAR safety compliance
- • **Rapid Reload Ready:** Streamlines engine swaps for faster, more frequent flights
- • **Precision Engine Fit:** Securely holds 29mm E16 & F15 motors for flawless launches
- • **Heat-Resistant Durability:** Crafted from ABS plastic to withstand intense launch heat
- • **Built for All Skill Levels:** Ideal for beginners and pros aiming for peak performance

## Overview

The Estes 9750 29-Millimeter Motor Retainer Set is a lightweight, heat-resistant ABS plastic accessory designed to securely fasten 29mm rocket engines (E16, F15, and composites). It enables quick engine loading and unloading, ensuring safe, reliable flights for model rocketeers aged 10 and up. Perfect for all skill levels, this retainer enhances your rocket-building experience while adhering to NAR safety standards.

## Description

Estes 9750 29-Millimeter Motor Retainer Set for model rockets is a vital accessory for any successful Estes rocket-building project and launch. This threaded Motor Retainer Set is molded from heat-resistant ABS plastic material that ensures the motor stays secure during the rocket launch. It is designed to simplify loading and unloading engines between launches for a faster setup and helps prevent the motor from being ejected backward during ignition or flight. This set is compatible with 29-millimeter E16 or F15 Estes rocket-engine models as well as most 29-millimeter composite motors.The Estes Motor Retainer Set is perfect for rocketeers of all skill levels, from beginner to master. Whether you’re experimenting with building new rocket designs or refining your skills at your current Estes level, this retainer secures your rocket engine, allowing you to craft a high-flying rocket experience every time. 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: These motor retainers fit as advertized for 29mm notors.
Review: Works good for the price and gets the job done, holds up to heat and stress pretty well.

## Features

- RETAINER FOR MODEL ROCKET: Estes rocket models soar to amazing heights, and you can safely build and fly them with precision with our 9750 29-Millimeter Motor Retainer Set. This fastener is the ideal accessory for all 29-millimeter engines, helping you quickly load and unload rocket engines between flights.
- DURABLE ROCKET PART: Our 9750 29-millimeter Motor Retainer Set is lightweight, durable, and easy to use. This small piece is molded from heat-resistant ABS plastic and is compatible with 29-millimeter E16 or F15 engines as well as most 29-millimeter composite motor-model designs.
- CONVENIENT BUILDING ACCESSORY: Whether you’re building a beginner model rocket or a master-level replica, this engine retainer has a place in your model-rocket-launching and rocket-building kit. It’s the ideal tool to help serious rocket builders ensure their motors stay secure without the risk of blowouts or ejections mid-flight.
- 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 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0071O0J90 |
| Assembly Required | Yes |
| Batteries Included | No |
| Batteries Required | No |
| Colour | black |
| Country of Origin | USA |
| Customer Reviews | 4.8 4.8 out of 5 stars (70) |
| Date First Available | 30 August 2012 |
| Included Components | Estes Rockets 9750 29mm Motor Retainer Set, for Model Rockets, Pro Series II (2 Pack) |
| Item Dimensions LxWxH | 44 x 44 x 44 Millimeters |
| Item Weight | 22.7 g |
| Item model number | 9750 |
| Language | English |
| Manufacturer | Estes |
| Manufacturer recommended age | 15 years and up |
| Model Number | 9750 |
| Number of Puzzle Pieces | 2 |
| Product Dimensions | 4.45 x 4.45 x 4.45 cm; 22.68 g |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** Estes
- **Colour:** black
- **Item dimensions L x W x H:** 44 x 44 x 44 Millimeters
- **Seasons:** All Seasons

## Images

![9750 29-Millimeter Motor Retainer Set, Model Rocket Engine Retainer, Rocket Model Kit Accessories for Ages 10+ - Image 1](https://m.media-amazon.com/images/I/51xaTJgzV5L.jpg)

## Customer Reviews

### ⭐⭐⭐ Review
*by T***K on 28 May 2023*

These motor retainers fit as advertized for 29mm notors.

### ⭐⭐⭐⭐⭐ Review
*by C***N on 19 January 2026*

Works good for the price and gets the job done, holds up to heat and stress pretty well.

### ⭐⭐⭐⭐⭐ Review
*by C***R on 24 January 2026*

Wish the description was clearer.. this is a pack of 2 complete sets. They work great. Super handy way to retain the motor and nice and lightweight add on to the butt end of the rocket, where youre usually looking to keep things light to not tip the scales on center of gravity.

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**Shop now:** [https://www.desertcart.fi/products/294691814-9750-29-millimeter-motor-retainer-set-model-rocket-engine-retainer](https://www.desertcart.fi/products/294691814-9750-29-millimeter-motor-retainer-set-model-rocket-engine-retainer)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-27*