0 ratings
Item #:
13942959
Estes® B4-4 Model Rocket Engines 3 pk
Item #:
13942959
KWD 11
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Order now and get it around Friday, August 28
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
The Estes B4-4 engine is a single stage engine designed for model rocket flight, and is suitable for rockets weighing less than 3.5 ounces, including the engine.
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
High Performance
Each B4-4 engine is designed for stable, high-powered launches, providing an impressive thrust to elevate your rocket design to impressive altitudes, enhancing the overall flight experience.
Reliability
Estes® engines are rigorously tested for consistency and safety, ensuring that model rocketeers can trust their performance for every launch, minimizing the risk of failure during exciting rocket launches.
Compatible Variety
Designed for versatility, these engines are compatible with a range of Estes® rockets, making them an essential addition for hobbyists who seek flexibility in their model rocket assemblies and configurations.
Product Details
- Includes 3 engines, 3 igniters, and 4 igniter plugs
- Single-stage engine for model rocket flight
- Designed for rockets weighing less than 3.5 ounces, including the engine
- Can only ship via USPS due to classification as a toy propellant device
- California Proposition 65 warning regarding exposure to chemicals
| Toy replacement part & accessory type | Rocket Motor |
| Brand | unknown |
| Material | Wood |
| Color | Multicolor |
| Age range | 14 years |
| Piece count | 3 |
| Manufacturer | HRP |
| Height | 0.750 in (1.9 cm) |
| Weight | 0.17 lb (80 grams) |
| Count per pack | 3 |
| Color category | Beige |
Who Should Buy?
-
Beginners
Ideal for novice model rocketeers; offers predictable flight performance for learning and enjoyment in rocket launching.
-
Educational Use
Great for classrooms and science projects, teaching students about physics and engineering principles in a fun way.
-
Hobbyists
Perfect for rocketry enthusiasts looking to add power to small rockets while enjoying a stable and reliable flight.
-
Advanced Users
Experienced rocketeers may find the B4-4's power underwhelming for larger, more complex rocket designs and expectations.
Product Description
Estes® B4-4 Model Rocket Engines 3 pk
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is included in the package?
Answer: Each package includes 3 engines, 3 igniters, and 4 igniter plugs. -
Question:
What type of rockets is it suitable for?
Answer: It is designed for rockets weighing less than 3.5 ounces, including the engine. -
Question:
How is it classified for shipping?
Answer: It can only ship via USPS due to its classification as a toy propellant device.
unknown Rockets Editorial Review
**** The Estes® B4-4 Model Rocket Engines have garnered a positive reception among customers, particularly for their reliability and performance. Many users highlighted the engines' excellent compatibility with their models, noting that they fit seamlessly and worked without any issues. Reviewers were particularly pleased to find that there were no defective units, which is crucial for a product meant to provide fun and excitement, especially for children. The engines are recognized for being kid-friendly, making them a great choice for family bonding and educational experiences in rocketry. Overall, customers expressed satisfaction with the product and indicated a willingness to repurchase in the future, reinforcing the engines' reputation as a solid choice for hobbyists and families alike. **
Customer Reviews & Ratings
1 customers ratings
-
5 Star
100%
-
4 Star
0%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Pros
- Reliable performance with no defective units.
- Seamless compatibility with various rocket models.
- Kid-friendly, enhancing family activities.
- Positive overall customer satisfaction and willingness to repurchase.
Cons
- No notable Cons were mentioned in the feedback.
Platform Trust & Buyer Confidence
A
Ahmad
Verified buyer
“Fast delivery, great experience overall.”
03-Jul-26 · via Trustpilot
AM
abbas
Verified buyer
“Excellent item received as expected and before the estimated time. Thanks for the great service.”
19-Jul-26 · via Trustpilot
WA
Waleed
Verified buyer
“Thank you for your message. I received the product and it is very good ? I?m really impressed with how great it works! I will be happy to share my feedback on the website.”
11 February 2026 · via Trustpilot
AA
Ahmed
Verified buyer
“Very good the same exact product that i wanted good shipping and delivery”
10 June 2026 · via Trustpilot
AN
Ambhita
Verified buyer
“Package delivered on time”
10 July 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
KWD 11
Order now and get it around Friday, August 28
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Features & Benefits
- Includes 3 engines, 3 igniters, and 4 igniter plugs
- Designed for rockets weighing less than 3.5 ounces
- Suitable for model rocket flight
- Single stage engine
- Can only ship via USPS due to toy propellant device classification
- Proposition 65 warning for chemicals
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.