Mingching Electronics Technology Co., Ltd. is one of the most professional manufacturers and suppliers of 20 pin obd adapter in China, also supports customized service. Welcome to wholesale high quality 20 pin obd adapter for sale here from our factory. Also, free sample is available.

Important: This is an adapter cable only. Diagnostic equipment is not included. Designed exclusively for 12V older KIA vehicles with a 20-pin diagnostic interface. Do not use on 24V commercial vehicles.

01 | Solve the Diagnostic Problem on Older KIA Vehicles

Older KIA vehicles may use a 20-pin non-standard diagnostic connector, which cannot be directly connected to standard OBD diagnostic equipment.

This adapter converts:

KIA 20-Pin → Standard OBD-II 16-Pin

Connect a compatible standard OBD diagnostic tool directly without purchasing a dedicated diagnostic device for older KIA vehicles.

02 | Gold-Plated Terminals for Stable Communication

Reduce Connection Problems & Communication Errors

The connector terminals feature gold plating to improve oxidation resistance in workshop environments exposed to moisture and dust.

Combined with multi-stranded copper conductors and controlled electrical characteristics, the cable is designed to provide stable communication between the vehicle ECU and diagnostic equipment.

Helps reduce issues such as:

• ECU recognition failure
• Interrupted data streams
• Incomplete fault-code reading
• Unstable communication
• Diagnostic connection dropouts

Performance Comparison

03 | Compact 15–20 cm Cable Design

Ideal for Tight Vehicle Cabins

The 15–20 cm short cable design is optimized for confined areas around the driver's seat and diagnostic port.

It helps:

• Reduce cable tangling
• Save workspace
• Keep the diagnostic area organized
• Provide sufficient operating flexibility
• Reduce pulling force on the connectors

04 | Wide Temperature Range & Dust Protection

Designed for demanding automotive workshop environments.

Operating Temperature: -20°C ~ +70°C

Suitable for cold garages in winter as well as high-temperature environments around automotive equipment.

The IP40 protection rating helps protect against workshop dust and metal particles.

Note: IP40 is not waterproof. Do not immerse the adapter or clean it with high-pressure water.

05 | Plug & Play - No Wire Modification

Connect Directly to the Original Diagnostic Port

Simply connect the adapter to the vehicle's original diagnostic interface.

No wire cutting.
No rewiring.
No modification to the vehicle harness.

The adapter is designed for direct connection without altering the vehicle's original wiring.

For Automotive Repair Shops & Workshops

1. Make Better Use of Your Existing Diagnostic Equipment

Already have a standard OBD diagnostic tool?

Add this adapter and you can work with compatible older KIA vehicles without purchasing an expensive dedicated diagnostic device.

2. Expand Your Vehicle Coverage

Add older KIA vehicles to your workshop's diagnostic service range and take on more repair and diagnostic jobs.

3. Reduce Rework

Stable communication helps reduce connection-related diagnostic problems, unnecessary troubleshooting time, and repeated work.

4. Lower Consumable Costs

Durable connectors and cable construction help reduce frequent cable replacement costs.

For Automotive Parts & Diagnostic Tool Distributors

A High-Demand Niche SKU

Older KIA vehicles remain widely used in many aftermarket markets, making this adapter a practical replacement and diagnostic accessory.

It can also be bundled with:

• OBD diagnostic tools
• Automotive diagnostic kits
• KIA-specific repair tools
• Automotive electrical accessories

Lower After-Sales Costs

Strict factory inspection helps reduce defective products and related after-sales workload.

Private Label Support

Customization is available for customers looking to develop their own branded automotive diagnostic accessories.

1 | Sample Support

1-set sample orders are available for initial testing.

Test the adapter on your own vehicle and diagnostic equipment before placing a bulk order.

First-time customers can receive sample-order support to reduce testing costs.

2 | Volume Order Benefits

3 | Customization Options

Cable Length

Customizable from:

5 cm – 100 cm

Pin Configuration

Internal wiring can be modified according to customer-provided drawings and pinout specifications.

Packaging

Available options include:

Neutral polybag

Custom color box

Customer-logo packaging

MOQ

Pin configuration modification: ≥300 sets

Packaging customization: ≥300 sets

4 | Production Lead Time

Bulk-order lead times may be adjusted slightly according to order quantity.

5 | After-Sales & Technical Support

Quality Assurance

Confirmed manufacturing defects are covered by our return/replacement service.

Technical Documentation

We can provide:

Product specification sheets

Pinout documentation

Product information

Technical Assistance

If compatibility or application issues occur, our technical team can assist with troubleshooting and product selection.

1.100% Factory Inspection

Every cable undergoes a complete inspection process, including:

Continuity Testing
Impedance Testing
Simulated Vehicle Communication Testing

Sample units from each production batch also undergo connector mating-cycle durability testing.

Batch test records and inspection reports can be provided upon request.

2.Proven B2B Supply Experience

We supply automotive parts distributors and automotive repair-tool suppliers in overseas markets, including Europe and Southeast Asia, where older KIA vehicles remain widely used.

3.Repeat Customer Support

Long-term B2B customers continue to reorder, with end-user feedback highlighting:

Stable communication

Durable connectors

Reliable diagnostic connection

Low after-sales complaint rates

4.Factory Verification Available

Customers can request:

Factory inspection videos

Product photos

Vehicle testing demonstrations

Product operation videos