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- O.S. Engines 71531000 Bubbleless Clunk
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Item #:
43282931
O.S. Engines 71531000 Bubbleless Clunk
90% of respondents would recommend this to a friend
Item #:
43282931
MXN 574
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Imported from USA store
Order now and get it around Thursday, October 01
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What Stands Out
Bubbleless Design
Eliminates air bubbles during fuel intake, ensuring smoother engine performance and consistent power delivery, making it ideal for competitive model engine enthusiasts.
Durable Construction
Crafted from high-quality materials, this clunk is designed to withstand the rigors of high-performance engines, providing longevity and reliability for hobbyists and racing aficionados alike.
Easy Installation
Designed for hassle-free integration into various O.S. Engines models, allowing users to quickly upgrade their fuel systems without extensive modifications or technical skills.
Product Details
- Plated throughout to prevent corrosion
- Mesh design prevents bubbles from entering the fuel line and causing damage to the engine
- Includes Bubbleless Fuel Pick-Up Weight, Rubber O-Ring, Instruction Sheet
- Requires assembly into the fuel tank with standard fuel tubing
- Designed for Aircraft Fuel Tanks
- Attaches to fuel tubing and placed into the fuel tank
| Brand Name | OS Engines |
| Manufacturer Part Number | 71531000 |
| Global Trade Identification Number | 04531028600300 |
| UPC | 795864818716 787793333231 |
| Manufacturer | Hobbico Inc |
| Number of Items | 1 |
| Model Number | OSMG5870 |
| Unit Count | 1 Count |
| Compatible with Vehicle Type | Aircraft |
| Fuel Type | Gasoline |
| Product Grade | new/unused |
| Fit Type | Universal |
| Item Dimensions | 4.13 x 3.38 x 0.5 inches (10.5 x 8.6 x 1.3 cm) |
| Item Weight | 9.07 g |
| Material Type | Metal |
| Exterior Finish | Metal |
| Brand | OS Engines |
| Material | Metal |
| Item dimensions L x W x H | 4.13 x 3.38 x 0.5 inches (10.5 x 8.6 x 1.3 cm) |
| Vehicle Service Type | Aircraft |
Who Should Buy?
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RC Aircraft Users
Ideal for RC aircraft enthusiasts seeking reliable fuel delivery without bubbles during flight operations.
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Model Boat Builders
Perfect for model boat builders who prioritize optimal fuel flow and performance in the water.
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Hobbyists and Collectors
Great for hobbyists and collectors who need a high-quality, reliable component for their engine setups.
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Beginner Users
Not suitable for beginners who may struggle with installation and setup of specialized components.
Product Description
O.S. Engines 71531000 Bubbleless Clunk
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the purpose of the O.S. Engines 71531000 Bubbleless Clunk?
Answer: The O.S. Engines 71531000 Bubbleless Clunk is specifically designed to improve fuel delivery in RC engines by minimizing bubbles in the fuel line. This clunk design helps maintain consistent fuel flow, even during dynamic maneuvers. When used in RC aircraft or vehicles, the Bubbleless Clunk ensures that your engine receives a steady supply of fuel, enhancing performance and responsiveness while reducing the risk of engine stalls. It's particularly useful for those engaging in high-speed racing or aerial acrobatics. -
Question:
How does the Bubbleless Clunk work?
Answer: The Bubbleless Clunk operates by using a specially designed mechanism that prevents air from entering the fuel line. This design includes a clunk weight that moves with the fuel, ensuring that the engine can continuously draw liquid fuel while minimizing the chances of air pockets forming. This is crucial for maintaining optimal engine performance, especially during rapid turns and speed variations in RC models. It is ideal for hobbyists who wish to achieve peak performance in competitive environments. -
Question:
What types of applications can benefit from the Bubbleless Clunk?
Answer: The O.S. Engines 71531000 Bubbleless Clunk is beneficial for a range of applications, particularly in RC airplanes, helicopters, and cars. Enthusiasts involved in competitive racing or intricate flight maneuvers will find that this clunk significantly enhances fuel delivery under challenging conditions. The ability to consistently deliver fuel without the risk of bubbles can lead to improved engine reliability and performance, making it a must-have for serious hobbyists or racers. -
Question:
Is the Bubbleless Clunk compatible with all O.S. engines?
Answer: While the O.S. Engines 71531000 Bubbleless Clunk is designed to work seamlessly with most O.S. engines, compatibility can vary based on specific engine designs or configurations. It is always recommended to check your engine's specifications to ensure optimal performance. If you're working on an RC project that demands high precision and reliability, the Bubbleless Clunk is a valuable addition to your setup, provided compatibility is confirmed. -
Question:
What materials are used in the construction of the Bubbleless Clunk?
Answer: The O.S. Engines 71531000 Bubbleless Clunk is crafted from durable, high-quality materials that ensure longevity and reliability during operation. Materials are specifically chosen to withstand the rigors of high-performance RC engines, providing resistance to wear and tear. This robustness makes it an essential component in the maintenance of your RC vehicle, allowing you to enjoy more time flying or racing without frequent replacements. -
Question:
How do I install the Bubbleless Clunk in my RC model?
Answer: Installing the O.S. Engines 71531000 Bubbleless Clunk involves a few straightforward steps. Begin by draining the fuel tank and removing the existing clunk line. Next, ensure the fuel line fits securely onto the Bubbleless Clunk, and insert it into your fuel tank making sure it’s at the right position for optimal fuel at all angles. Proper installation is crucial as it allows for effective fuel flow and responsiveness in your RC model. It’s suitable for hobbyists looking to optimize their engine’s performance. -
Question:
Can the Bubbleless Clunk improve my engine's performance?
Answer: Yes, the O.S. Engines 71531000 Bubbleless Clunk can significantly enhance your engine's performance. By minimizing air bubbles that can disrupt fuel supply, the clunk ensures a smooth delivery of fuel, leading to more consistent engine operation. For competitive racers or flyers, this means better throttle response and increased reliability during intense maneuvers, ultimately contributing to a superior racing experience or flight performance. -
Question:
How often should I replace the Bubbleless Clunk?
Answer: Replacement frequency for the O.S. Engines 71531000 Bubbleless Clunk depends on usage intensity and conditions. Generally, if you notice any decrease in performance or fuel delivery issues, it may be time for a replacement. Regularly inspecting the clunk for signs of wear and tear is advised, particularly after extensive use in competitive environments. Keeping it in good condition ensures your RC model operates at its best for longer periods. -
Question:
What should I know about maintaining the Bubbleless Clunk?
Answer: Maintaining the O.S. Engines 71531000 Bubbleless Clunk involves regular inspections for blockages and ensuring that the clunk weights remain properly attached. It’s essential to keep the fuel lines clear of debris and to ensure that the connection between the clunk and fuel tank is secure. Regular maintenance guarantees that fuel flow remains uninterrupted, allowing your engine to perform reliably whether in a casual setting or competitive racing. -
Question:
Where can I buy O.S. Engines 71531000 Bubbleless Clunk?
Answer: You can buy the O.S. Engines 71531000 Bubbleless Clunk at Ubuy in Mexico. Ubuy offers a convenient platform for purchasing this essential component, ensuring you have access to high-quality products designed for optimal RC performance. Visit Ubuy's website to explore purchasing options tailored to your specific needs and enjoy a hassle-free shopping experience.
OS Engines Fuel System Parts OSMG5870 Editorial Review
The O.S. Engines 71531000 Bubbleless Clunk allows for a smooth and uninterrupted fuel supply to your engine. With its design, it ensures that no air bubbles are introduced into the fuel line, which can cause engine problems when fuel levels are low. Customers have reported that it successfully drains a tank without leaving any fuel behind. However, a few users have mentioned that it struggles to pick up the last 1/4 inch of fuel in the tank. Overall, the O.S. Engines 71531000 Bubbleless Clunk is a reliable and efficient option for your engine's fuel supply system.
Customer Reviews & Ratings
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Pros
- Smooth and uninterrupted fuel supply
- No air bubbles introduced into fuel line
- Successfully drains a tank without leaving fuel behind
Cons
- Struggles to pick up the last 1/4 inch of fuel in the tank
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“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
11 September 2026 · via Trustpilot
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“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
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MXN 574
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