RC Overhaul LowPro Heatsink Bullet Connector 4mm O-RCO-HSC4

• Manufacturer: RC Overhaul
• Part Number: O-RCO-HSC4
• Product Type: Low-profile bullet connector with colour grip sleeve
• Connector Size: 4mm bullet terminal
• Compatible Wire Gauge: 11-16 gauge
• Grip Installation Method: Cyanoacrylate (CA) adhesive glue
• Features: Recessed soldering area, colour-coded polarity identification, low-profile design, RC Overhaul logo laser-etched on top
• Battery Compatibility: All batteries with 4mm bullet terminals
• EAN/Barcode: 5055320229018
• Single unit supply: One connector with colour grip sleeve included

Overview

The RC Overhaul LowPro Heatsink Bullet Connector 4mm is the perfect finishing touch for anyone serious about maintaining a neat and professional electronics installation in their RC car or RC truck. Whether you're a dedicated RC enthusiast in the UK or simply looking to upgrade your battery connections, these low-profile connectors combine exceptional functionality with stylish design. The LowPro range represents RC Overhaul's commitment to helping hobbyists elevate their RC builds with quality accessories that make a real difference to both appearance and practicality.

Designed specifically for RC models that use 4mm bullet terminals, these connectors solve two common problems faced by RC car enthusiasts: messy wiring installations and the frustration of accidentally tugging on battery wires during disconnection. The colour-coded grip sleeve not only makes polarity identification instant and foolproof, but also provides a secure hold when unplugging from battery terminals. This simple but clever design detail prevents the kind of accidental damage that can occur when you're trying to disconnect a tightly-fitted battery connector in the heat of a race or bashing session.

Every RC Model Shop customer knows that attention to detail separates a properly finished build from an amateur installation. The RC Overhaul LowPro Heatsink Bullet Connector 4mm delivers that professional finish whilst maintaining the reliability you need when your RC vehicle matters to you. The laser-etched RC Overhaul logo on top adds a touch of authenticity and brand recognition that shows you've invested in quality components throughout your build.

Key Features

• Low-Profile 4mm Bullet Connector with Gripped Outer Sleeve — The compact design keeps your electronics bay clean and tidy whilst the colour grip sleeve serves dual purposes: it identifies battery polarity at a glance and provides a secure grip point when disconnecting your battery, eliminating the need to pull on the wire itself which can damage connections over time.
• Colour Grip for Quick Polarity Identification — Colour-coded grips make it instantly obvious which terminal is positive and which is negative, reducing the risk of accidentally reversing your battery connection, which can damage your ESC and electronic components. This is particularly valuable when working in poor lighting conditions or during rapid pit stops at RC racing events across the UK.
• Recessed Soldering Area for 11-16 Gauge Wire — The cleverly designed recess area in the connector body makes soldering your battery wires significantly easier and cleaner. The recess guides the solder joint and ensures a strong electrical connection with 11 to 16 gauge wire, which covers the vast majority of RC car and truck battery configurations used in modern RC racing and bashing.
• Secure Grip Reduces Wire Strain — Rather than gripping the connector by the thin battery wire, the colour grip gives you something substantial to hold onto. This dramatically reduces mechanical stress on the solder joint and wire insulation, extending the lifespan of your battery connections and preventing intermittent electrical failures during critical moments in a race or bashing session.
• RC Overhaul Logo Laser-Etched on Top — Each connector features the RC Overhaul logo cleanly laser-etched onto the top surface, adding a professional and authentic appearance to your installation. This attention to detail reflects the care that goes into every component of your RC build and shows that you've chosen quality connectors from a recognised manufacturer.
• Universal 4mm Bullet Terminal Compatibility — These connectors fit all batteries featuring standard 4mm bullet terminals, making them compatible with the vast majority of RC car batteries, RC truck batteries and general RC model power systems. Whether you're running LiPo, Li-ion or traditional battery packs, if they have 4mm terminals, these connectors will work perfectly.

Technical Performance

The RCO LowPro Heatsink Bullet Connector 4mm represents a thoughtful engineering approach to a simple but critical component in any RC installation. The connector body is manufactured to precise tolerances to ensure perfect compatibility with standard 4mm bullet terminals found on quality RC batteries. The recess area for soldering has been carefully designed to accept 11 to 16 gauge wire, which provides flexibility for different battery configurations and charging systems used throughout the RC hobby. The colour grip sleeve is installed using cyanoacrylate (CA) adhesive, and the manufacturers recommend just a few drops to achieve a permanent bond that will survive countless connect-disconnect cycles. The laser-etched logo indicates precision manufacturing throughout — when a connector receives this level of attention in finishing details, you can be confident that the electrical performance will be equally impressive. The low-profile design means these connectors take up minimal space in your battery bay, important for RC cars and trucks where space management affects weight distribution and handling characteristics. By providing a secure grip point, these connectors encourage proper handling technique, which in turn protects your entire electrical system from the accidental damage that occurs when loose wires are pulled during battery removal.

What's in the Box

• RC Overhaul LowPro Heatsink Bullet Connector 4mm (single unit with colour grip sleeve)

What You Need to Complete

• Soldering iron and solder (for attaching battery wires to the connector)
• Cyanoacrylate (CA) adhesive glue (for permanently securing the colour grip sleeve)
• 11-16 gauge battery wire (if your battery pack does not already have this connector installed)

Frequently Asked Questions

• What gauge wire does the RCO LowPro 4mm connector accommodate? — The recessed soldering area is specifically designed to work cleanly with 11 to 16 gauge wire. This range covers the majority of RC car and RC truck battery configurations used by hobbyists across the UK, from smaller 2S LiPo packs up to larger capacity batteries. If your battery wires fall within this gauge range, you'll find soldering to these connectors straightforward and reliable.
• Is this connector suitable for beginners to RC hobbies? — Yes, absolutely. Whilst soldering is required to install these connectors, that skill is fundamental to RC hobbies and most beginners learn it early. The colour grip makes polarity identification foolproof, preventing the kind of reverse-connection mistakes that could damage an ESC or other electronics. Once soldered, the secure grip design makes these connectors easier and safer to use than standard connectors, making them a smart choice for anyone new to the hobby.
• Will these connectors work with my RC battery? — These connectors are compatible with all batteries featuring standard 4mm bullet terminals, which is the industry standard for most RC car batteries, RC truck batteries and RC model power systems. Check your battery documentation or examine the connector on your existing battery — if it has a 4mm bullet terminal, this connector will work perfectly.
• How do I install the colour grip sleeve? — The installation process is simple and takes just moments. First, solder your battery wire to the bullet connector using the recessed area as your guide for a clean joint. Once the solder has cooled, apply just a few drops of CA glue inside the colour grip sleeve, then slide it onto the connector body. The CA glue will set within seconds, creating a permanent bond. The grip sleeve cannot be removed once bonded, so choose your polarity colour carefully before installation.
• Why would I use these instead of my battery's original connector? — These LowPro connectors offer several advantages: the colour grip makes polarity identification instant and foolproof, the grip design prevents accidental wire damage during disconnection, the low-profile shape keeps your electronics bay neat and tidy, and the professional appearance shows attention to detail in your build. Many RC enthusiasts upgrade their battery connectors as soon as they get serious about their RC car or RC truck, as the benefits quickly become apparent during regular use.
• Are these connectors suitable for high-discharge batteries? — Yes. The 4mm bullet terminal standard is designed to handle the discharge rates found in modern LiPo and Li-ion RC batteries. The high-quality construction ensures reliable electrical contact across countless charge-discharge cycles. However, as with any connector, ensuring a clean solder joint and secure connection is essential for maximum performance and safety.

Why Buy from RC Model Shop?

RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the RCO LowPro Heatsink Bullet Connector 4mm O-RCO-HSC4 today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.

We want to make sure your delivery goes smoothly, so here are some important details about our service:

• For orders above £120, we offer delivery to most mainland UK addresses. For orders under £120, we can still deliver to Northern Ireland and the outlying isles, as long as the item can be sent by Royal Mail, weighs less than 30kg, and fits within 61cm × 46cm × 46cm. Some highland and remote areas may carry an extra delivery charge as couriers often apply surcharges in these locations. If you live in one of these areas, feel free to contact us before ordering so we can confirm the delivery options and costs for you.
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• If your order includes items with different dispatch times we will normally wait and send everything together once all items are in stock. If one of the items is going to take a while we will give you the choice either wait for everything to arrive or let us send the available items now and deliver the rest later. It is up to you.
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• For customers in Inverness and other parts of the Scottish Highlands deliveries can take up to 2 working days even if you select next day delivery as couriers do not currently offer a guaranteed next day service to those areas.