High-Performance Automotive Electrical Connectors | OEM & Aftermarket | TONFUL Electric
Professional-grade automotive Electrical Connectors and terminals. Engineered for durability, vibration resistance, and optimal electrical performance. Browse our extensive catalog for OEM replacements and custom solutions.
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Our Automotive Electrical Connectors Range
Deutsch DT Series
TE AMP Superseal Series
Delphi Metri-Pack 150.2 Series
Delphi Metri-Pack 280 Series
Delphi Metri-Pack 150 Series
Delphi GT 280 Series
Deutsch DTM Series
Aptiv APEX 2.8 Connector Series
TE AMP New Energy Series
JAE MX23 Series
TE ECONO-J MK-2 Series
Molex MX150 Series
Sumitomo HX 040 and 090 Series
ECU And PCB Series
KUM NMWP Series
JST JWPF Series
Why Choose TONFUL Automotive Electrical Connectors
Superior Sealing & Durability
Engineered to resist vibration, moisture, chemicals, and extreme temperatures, ensuring long-term reliability in harsh automotive environments.
Perfect OEM Fit
Precision-designed to be direct OEM replacements for a seamless, secure connection with an audible click, eliminating installation guesswork.
Complete All-in-One Kits
Each kit includes the connector housing, pre-tinned terminals, seals, and the essential extraction tool—everything needed for a professional repair in one package.
Premium Materials
Feature high-quality PA66 (Nylon) housings and pre-tinned copper terminals for excellent conductivity, corrosion resistance, and heat tolerance.
Broad Vehicle Compatibility
An extensive range of kits is available to fit a wide variety of makes and models, from engine sensors to lighting and body control modules.
Professional Grade Value
Offers the ideal balance of cost and quality, saving time on installation and preventing comebacks with reliable, durable repairs.
Professional Selection Guide
1.Identify the OEM Part Number
2.Verify Pin Count and Configuration
3.Check the Terminal Type and Size
4.Assess the Environmental Needs
5.Review Current and Voltage Rating
6.Select a Reputable Supplier and Kit
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We provide samples for free, you just need to tell us what you need
MORE THAN JUST A Automotive Electrical Connectors MANUFACTURER
Service Consultation
Whether your Automotive Electrical Connectors requirements are straightforward or complex, our team provides expert advice and technical consultation. For more intricate projects, we offer in-depth engineering support to ensure optimal product selection and application, guaranteeing safety and efficiency in your electrical systems.
Product Recommendations
Unsure which Automotive Electrical Connectorssuits your system? Our specialists provide free, customized recommendations based on your specific operational and environmental requirements, ensuring you get the perfect fit for your electrical protection needs.
Installation Support
Need help with installation? Our technical team is available to answer your questions or provide hands-on support. For larger projects, we can even dispatch an engineer to your site for on-the-ground assistance, ensuring your terminals are installed correctly and function seamlessly within your electrical network.
Logistics Support
If you lack a reliable freight forwarder, we can arrange transportation from our factory to your project site at no extra cost. Our logistics team ensures timely and secure delivery to keep your project on schedule, minimizing downtime and delays.
Frequently Asked Questions
We have compiled some common questions from our clients. If your question isn’t included here, our customer service is always available to help. We’d love to talk with you.
Q1: What is an automotive electrical connector?
It is a modular housing that secures the ends of wires together to create a secure, sealed, and easily removable electrical circuit. They are the “plugs and sockets” of a vehicle’s wiring harness.
Q2: Are all automotive electrical connectors the same? How do I know which terminal type I have?
No, they are not the same. Several major types exist, and they are not interchangeable. You can identify them by their distinct shapes and locking mechanisms:
Metri-Pack (GT Series): Very common in US domestic vehicles. Rectangular with a distinct primary lock and often a secondary metal “CPA” clip.
Weather Pack: Circular seals on each terminal, used in slightly less harsh environments than Metri-Pack.
Sumitomo (HW/HV Series): Prevalent in Asian imports (Toyota, Honda, etc.). Often have a single, colorful lever lock.
Deutsch (DT/DTP Series): Common in heavy-duty, commercial, and performance applications. Cylindrical with a robust bayonet-style threaded collar lock.
The best way to know is to compare your old connector to product images or identify it by its OEM number.
Q3: How do I find the right replacement connector?
The best method is to:
• Find the OEM part number stamped on the original connector.
• Note the number of pins and the connector’s shape.
• Search using the vehicle’s make, model, year, and the component it connects to (e.g., “2015 Honda Civic oxygen sensor connector”).
Q4: What tools do I need to repair a connector?
Wire Crimper: A quality tool for crimping the terminal to the wire.
• Terminal Extraction Tool: A essential pin for releasing the terminal’s locking tab to remove it from the housing without damage.
• Wire Strippers: To remove insulation cleanly.
Q5:Can I just solder wires together and skip the connector?
It is not recommended. Connectors are designed for:
• Serviceability: Allowing components to be easily unplugged and replaced.
• Strain Relief: Absorbing vibration that would otherwise stress a rigid soldered joint.
• Sealing: Protecting the connection from the elements. A soldered joint is very difficult to seal properly.
Q6:Why do connectors fail?
The most common causes are:
• Corrosion: Water or chemical ingress leads to rust and poor conductivity.
• Vibration: Causes terminals to loosen, creating intermittent faults.
• Heat Aging: High under-hood temperatures can make plastic housings brittle and crack.
• Physical Damage: Broken locks or pins from improper disconnection or impact.
Q7: The connector looks fine. How can I tell if it's actually faulty?
A connector can fail internally without visible damage. Troubleshoot by:
• Checking for Power/Signal: Use a multimeter to test if voltage or data is passing through the connector.
• Performing a Wiggle Test: With the circuit active, gently wiggle the connector and wiring while monitoring the meter. A fluctuating reading indicates an internal break or loose terminal.
• Inspecting for Green/White Crust: Signs of corrosion on the metal terminals.
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