If you rely on an OBD2 scanner, a GPS tracker, or a dash cam that taps into your car’s diagnostic port, you know the struggle of having only one port. An OBD port splitter lets you connect two devices at once, saving you from constantly swapping cables and risking damage to the connector.
This guide reviews ten of the best OBD port splitters on the market, covering different lengths, angles, and features. Whether you need a compact adapter for tight spaces or a long extension for easy access, you’ll find the right option here.
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ZIMISI OBDII Splitter with Rotatable Male Port, Universal Port Splitter
Best forTight dash spaces
- Rotatable male port
- Durable ABS build
ConsiderShort cable length
bbfly-A9 OBD II OBD2 16Pin Splitter Extension Cable Adapter (2FT/60CM)
Best forLong reach under dash
- 2-foot length
- Flat low-profile design
ConsiderNo right-angle connector
bbfly-B6 OBD2 Splitter OBDII Extension Cable Adapter (1FT/30CM) (1Pack)
Best forShort tidy connections
- Compact 1-foot length
- Flat low-profile design
ConsiderLimited reach
OBD2 Splitter for Ford and for GM, bbfly-B54 OBDII Splitter 2 Way 1FT/30CM
Best forFord and GM vehicles
- Designed for Ford/GM
- Hides GPS devices
ConsiderNot universal fit
Autel Original OBD2 16 Pin OBDII Y Splitter Extension Adapter Cable
Best forProfessional diagnostic use
- High-purity copper core
- Plug and play
ConsiderPremium price
iKKEGOL Right Angle OBD II OBD2 16 Pin Splitter Extension Cable 1x Male and…
Best forAngled access needs
- Right-angle male connector
- 2-foot length
ConsiderBulky at connector
iKKEGOL 30cm/12 Right Angle OBD2 OBD II Y Splitter Cable 1x Male and 2X Fem…
Best forDiscrete GPS installations
- Right-angle connector
- Supports all protocols
ConsiderRed color may not match
OBDII Splitter with Rotatable Male Port, bbfly-B33 OBD2 J1962 Adapter
Best forMinimal space requirements
- Rotatable male port
- Ultra-compact 1.6IN
ConsiderVery short cable
OBD2 Splitter, bbfly-B31 16pin OBDII Port Extension Cable 1.6IN/4CM (1PACK)
Best forDurable compact use
- Extra durable build
- Full 16-pin connection
ConsiderNo rotatable port
iKKEGOL 30cm/12 OBD2 OBD II Splitter Extension Y J1962 16 Pin Cable Male to…
Best forRight-angle extension needs
- Right-angle male connector
- 12-inch length
ConsiderNo rotatable feature
ZIMISI OBDII Splitter with Rotatable Male Port – Flexible Angle Adapter
The ZIMISI OBDII splitter stands out with its rotatable male port that adjusts 180 degrees. This flexibility lets you position the splitter perfectly in tight spaces under the dash, avoiding interference with other components. The high-quality ABS material ensures durability and wear resistance, so it can handle repeated use without cracking.
Featuring a full 16-pin DC interface rated at 12V and 5A, this splitter maintains stable operation for your connected devices. Installation is straightforward—just plug it into your vehicle’s OBD2 port and connect your tools. If you need a compact, adjustable solution, this is a solid pick.
- Rotatable male port
- Durable ABS build
- Stable 12V/5A rating
- Short cable length
- No extension capability
bbfly-A9 OBD2 Splitter Extension Cable – 2FT Flat Design
Brand: bbfly
A reliable, flat extension that protects your scan tool's connector.
The bbfly-A9 is a 2-foot OBD2 splitter extension cable that passes all 16 pins straight through with no shared ground wires, ensuring accurate data transmission. Its ultra-flat, low-profile design makes it easy to route under the dash and carry in your toolbox. The high-quality materials provide superior flexibility and durability, so it won’t kink or break easily.
This extension cable is perfect for saving wear and tear on your scan tool’s connector, as you can leave the splitter plugged in and connect your devices to the female ports. Whether you’re a professional mechanic or a DIYer, this cable offers reliable performance and convenience.
- 2-foot length
- Flat low-profile design
- Passes all 16 pins
- No right-angle connector
- May be too long for some
bbfly-B6 OBD2 Splitter Extension Cable – 1FT Compact
The bbfly-B6 is a 1-foot OBD2 splitter extension cable that offers the same straight-through 16-pin connection as its longer sibling, but in a more compact size. Its ultra-flat design makes it easy to tuck away, and the high-quality materials ensure durability and flexibility. This cable is ideal for setups where you need a short extension to reach a device without excess slack.
Using this extension cable helps reduce wear on your scan tool’s OBD connector, as you can plug the splitter into the vehicle and leave it there. The low-profile nature means it won’t interfere with your driving or legroom. If you prefer a shorter, tidy solution, this is a great choice.
- Compact 1-foot length
- Flat low-profile design
- Durable construction
- Limited reach
- No right-angle option
bbfly-B54 OBD2 Splitter for Ford and GM – 2 Way 1FT
The bbfly-B54 is a 2-way OBD2 splitter specifically designed for Ford, Chevrolet, and GM vehicles, but it works with any standard 16-pin OBDII port. This splitter lets you hide your GPS device or OBDII code reader while keeping the port accessible for diagnostics. The 1-foot cable length provides enough reach to position devices discreetly under the dash.
Before ordering, ensure your diagnostic port is a 16-pin OBDII connector. The splitter’s design allows two devices to operate simultaneously, making it perfect for trackers and scanners. Its sturdy build ensures long-lasting performance, and the compact size makes installation easy.
- Designed for Ford/GM
- Hides GPS devices
- 1-foot cable length
- Not universal fit
- Limited to 16-pin ports
Autel Original OBD2 Y Splitter – High-Speed Data Cable
Brand: Autel
A high-quality splitter for professionals who need fast data transfer.
The Autel Original OBD2 Y splitter is a premium extension cable that gives you two OBD2 ports, allowing you to connect two devices at once. It uses a high-purity oxygen-free copper core to accelerate data transmission, ensuring fast and reliable communication with your diagnostic tools. This splitter is compatible with all standard OBD2 devices and works on any vehicle with an OBDII port.
Thanks to its plug-and-play design, you can simply plug it into your vehicle’s OBD2 port and connect your devices without any configuration. The Y-type configuration makes it easy to manage multiple tools, and the high-quality materials ensure durability. If you need a reliable, high-performance splitter, this Autel option is worth considering.
- High-purity copper core
- Plug and play
- Works on all OBDII vehicles
- Premium price
- No right-angle connector
iKKEGOL Right Angle OBD2 Splitter – 2FT Low Profile
Brand: iKKEGOL
A versatile splitter with a right-angle connector for tight spots.
The iKKEGOL right-angle OBD2 splitter features a male right-angle connector that helps fit into tight spaces under the dash. With a 2-foot length, it provides plenty of reach to position your devices conveniently. The ultra-flat, low-profile design ensures it doesn’t interfere with your driving, and it fits perfectly into all OBD2 ports.
This splitter allows you to extend your OBD-II devices without interfering with their function, making it easy to swap between multiple tools. The durable materials ensure long-lasting use, and the right-angle connector adds extra flexibility. If you need a longer, angled solution, this is a great option.
- Right-angle male connector
- 2-foot length
- Low-profile design
- Bulky at connector
- May be too long for some
iKKEGOL Right Angle OBD2 Y Splitter – 12 Inch Red
The iKKEGOL 12-inch right-angle OBD2 Y splitter comes with 1 male and 2 female J1962 connectors, providing a direct pass-through on all 16 pins. It supports all standard vehicle OBD2 protocols, including CAN, ensuring compatibility with a wide range of devices. The red color adds a distinctive look, and the right-angle male connector helps in tight installations.
This splitter is ideal for use with GPS trackers, auto scanners, and adapter connectors for the most discrete installations. The parallel connection allows both devices to work properly without interference. Its compact size makes it easy to hide, and the durable construction ensures reliability.
- Right-angle connector
- Supports all protocols
- Compact 12-inch length
- Red color may not match
- No extension length
bbfly-B33 OBDII Splitter with Rotatable Male Port – 1.6IN
The bbfly-B33 OBDII splitter features a rotatable male port that adjusts 180 degrees, allowing you to save space and fit into tight areas. This compact splitter measures just 1.6 inches, making it one of the smallest options available. It connects all 16 pins one by one, ensuring full functionality with your devices.
Included with the splitter is a DC connector rated at 12V and 5A, which should not be exceeded to avoid damage. The rotatable design is particularly useful for vehicles with limited clearance around the OBD2 port. If you need a tiny, adjustable splitter, this is an excellent choice.
- Rotatable male port
- Ultra-compact 1.6IN
- Full 16-pin connection
- Very short cable
- DC connector limit
bbfly-B31 OBD2 Splitter – 1.6IN Durable Extension
The bbfly-B31 is a 1.6-inch OBD2 splitter that connects all 16 pins one by one, ensuring a secure and reliable connection. It is made thicker and with high-quality materials to provide extra durability, so it can withstand frequent plugging and unplugging. This splitter is compatible with any vehicle that has an OBD2 interface.
Its compact size makes it ideal for tight spaces, and the sturdy construction ensures it won’t break easily. Whether you need to connect a scanner and a tracker simultaneously, this splitter gets the job done. If you prioritize durability in a small package, this is a great pick.
- Extra durable build
- Full 16-pin connection
- Universal compatibility
- No rotatable port
- Very short length
iKKEGOL OBD2 Splitter Extension Cable – 12 Inch Right Angle
The iKKEGOL 12-inch OBD2 splitter extension cable features a right-angle male connector, making it easier to plug into tight spaces. It connects a 16-pin male to dual female ports, allowing you to use two devices simultaneously. The cable is designed to work with OBD-II compliant vehicles and diagnostic hardware.
This extension cable is perfect for extending the reach of your OBD2 devices, and the right-angle connector helps avoid interference. The 12-inch length provides a good balance between reach and manageability. If you need a reliable, angled extension, this is a solid choice.
- Right-angle male connector
- 12-inch length
- Dual female ports
- No rotatable feature
- Basic design
Buyer’s Guide: What to Consider
When choosing an OBD port splitter, focus on length, connector type, pin configuration, build quality, and compatibility. These factors ensure you get a splitter that fits your needs and lasts.
- Cable Length: Consider how far your devices are from the OBD2 port. Short splitters (1.6IN) are great for tight spaces, while longer cables (2FT) offer flexibility in positioning. Choose based on your vehicle's layout and device placement.
- Connector Type: Look for splitters with a right-angle or rotatable male port if you have limited clearance. These designs help avoid bending the cable and reduce stress on the port. Standard straight connectors work fine in most cases.
- Pin Configuration: Ensure the splitter passes all 16 pins straight through to maintain full functionality with your diagnostic tools. Some splitters may share ground wires, which can affect data transmission. Check for full pin pass-through.
- Build Quality: Choose splitters made from high-quality materials like ABS or with reinforced cables. Durable construction prevents breakage from frequent plugging and unplugging, especially if you use the splitter regularly.
- Compatibility: Verify that the splitter works with your vehicle's OBD2 protocol and your devices. Most splitters are universal, but some are designed for specific brands like Ford or GM. Always check the product description for compatibility notes.
Conclusion
Choosing the right OBD port splitter depends on your specific needs, such as space constraints, cable length, and device compatibility. The ZIMISI and bbfly-B33 offer rotatable ports for tight spaces, while the Autel and iKKEGOL models provide longer cables and right-angle connectors for flexibility.
For most users, the bbfly-A9 or iKKEGOL 2FT splitter offers a great balance of length and durability. If you need a compact, durable option, the bbfly-B31 is a reliable choice. Consider your setup and pick the splitter that best fits your vehicle and devices.
Erica Steven is the founder and lead writer of WorstBrands, a site dedicated to providing honest and trustworthy reviews about outdoor gear and fashion products.
With a passion for exploring the great outdoors and staying up to date on the latest fashion trends, Erica uses her expertise to provide valuable insights into the products that matter most to her readers.
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