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David Clark C31-26 (18874G-01) – 26' Coiled Extension Cord for Series 3000 Ground Support Headsets

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David Clark C31-26 26-Foot Coil Cord – Extended Reach for Series 3000 Ground Support Headsets

Enhance mobility and maintain clear communication on the ramp with the David Clark C31-26 26-Foot Coil Cord. Designed for Series 3000 Ground Support Headsets, this durable extension cord increases the distance between headsets and ground support connections, providing added flexibility during pushback, ramp maintenance, and other critical ground support operations.

Key Features:

Designed for Series 3000 Headsets – Ensures seamless compatibility with David Clark’s reliable ground support communication systems.
26-Foot Extended Length – Allows for increased distance between headsets and connection points when additional reach is needed.
Durable Coil Cord Construction – Reduces strain and tangling, ensuring longevity in high-traffic ramp environments.
Reliable Ground Support Communication – Supports clear and effective communication during pushback and maintenance operations.

Whether you're working on airline ramp operations, airport ground support, or pushback procedures, the David Clark C31-26 Coil Cord provides the extra reach needed to keep your team connected.

Order Now

Get the extended reach your ground crew needs—order the David Clark C31-26 26-Foot Coil Cord today from Pilot John International! We Keep You Flying™.

General Information
Part #18874G-01
ManufacturerDavid Clark
Shipping Information
Product Weight0.8 lbs.
Product Dimensions7 x 5 x 3 in.
Schedule B9030400000
ECCN7A994

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AIRCRAFT COMPATIBILITY

Compatible Aircraft*
*This list is for general reference only and may not be entirely accurate for all aircraft. Please confirm all equipment meets the requirements of your aircraft with the owners/maintenance manuals prior to purchasing or using with your aircraft.

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QUESTIONS & ANSWERS

Question:
What is the purpose of the David Clark C31-26 coiled extension cord?
Answer:

The David Clark C31-26 Coiled Extension Cord extends the communication range between a David Clark Series 3000 Ground Support Headset and the aircraft or intercom connection point. It’s designed to provide ramp and maintenance crews with extra mobility while maintaining clear and reliable communication. This 26-foot cord helps prevent strain on headset cables during active ramp operations.

Asked October 24, 2025
Question:
Which headsets are compatible with the C31-26 extension cord?
Answer:

The C31-26 extension cord is specifically designed for use with David Clark Series 3000 noise-attenuating headsets, including models like the H3313 and H3331. It connects directly to the headset’s SC-838 jack and the aircraft’s PJ-051 plug or ground support intercom, ensuring a secure and interference-free connection during ramp or maintenance operations.

Asked October 24, 2025
Question:
What type of connectors does the C31-26 extension cord use?
Answer:

The cord features a female SC-838 connector on one end and a male PJ-051 or 1/4" TRS plug on the other end, depending on the system configuration. This setup allows it to integrate seamlessly with most standard aviation ground support communication systems. The connectors are built to withstand frequent connections and disconnections without compromising signal integrity.

Asked October 24, 2025
Question:
How long is the David Clark C31-26 when extended?
Answer:

The C31-26 extends to approximately 26 feet (7.9 meters), providing ample flexibility for ramp or maintenance crew movement. Its coiled design prevents tangling while allowing the cord to stretch as needed and retract neatly when not in use. This balance of flexibility and organization keeps work areas safer and more efficient.

Asked October 24, 2025
Question:
Can the C31-26 extension cord be used with other David Clark cords or accessories?
Answer:

Yes. The C31-26 can be paired with other David Clark extension cords or headset accessories to customize communication setups for specific ground support environments. It’s part of the C31-XX Series, which includes multiple cord lengths and connector configurations to fit different operational needs.

Asked October 24, 2025
Question:
Is the David Clark C31-26 suitable for ramp and maintenance operations?
Answer:

Absolutely! The C31-26 is purpose-built for ramp, hangar, and maintenance communication where clear, noise-free coordination is critical. Its durable coiled construction resists abrasion and wear from high-traffic environments, making it the standard choice among airlines, MRO facilities, and ground support teams worldwide.

Asked October 24, 2025
Question:
How durable is the C31-26 cord in harsh ground support environments?
Answer:

Like all David Clark products, the C31-26 is engineered for exceptional durability. Its heavy-duty insulation and reinforced strain reliefs protect against wear, oil, fuel, and extreme temperatures. The coiled design also helps prevent kinks and damage caused by dragging or excessive stretching, ensuring years of dependable service.

Asked October 24, 2025
Question:
Is the C31-26 extension cord resistant to environmental factors such as moisture or fuel?
Answer:

Yes. The C31-26 is constructed with aviation-grade materials that resist damage from exposure to moisture, hydraulic fluids, and aviation fuel. This makes it well-suited for outdoor use on busy ramps and in hangars where environmental conditions can be unpredictable.

Asked October 24, 2025
Question:
How should I maintain or store the C31-26 extension cord?
Answer:

After each use, allow the cord to retract naturally to prevent overstretching or twisting. Wipe the outer jacket with a clean, dry cloth to remove dust or fuel residue. Avoid sharp bends that could strain the internal wiring. Store the cord in a cool, dry place – ideally on a cord reel or in a protective case – to prolong its service life.

Asked October 24, 2025
Question:
Can the C31-26 cord be repaired or serviced if damaged?
Answer:

Yes, the C31-26 extension cord can be serviced or repaired through authorized David Clark repair centers. Replacement parts for connectors or damaged sections are available; however, professional servicing is recommended to maintain optimal performance and ensure safety standards are met.

Asked October 24, 2025
Question:
Is the C31-26 compatible with aircraft intercom systems or only ground support jacks?
Answer:

The C31-26 is primarily designed for ground support and maintenance communication systems, but it can also interface with certain aircraft intercom jacks using standard 1/4" TRS or PJ-051 connections. Always confirm compatibility with your specific aircraft or intercom setup before use to ensure proper communication function.

Asked October 24, 2025
Question:
Why do airlines and maintenance crews prefer the David Clark C31-26 cord?
Answer:

Airlines and MRO operators trust the David Clark C31-26 because it combines long reach, coiled flexibility, and rugged reliability in one package. Its proven performance, easy compatibility with Series 3000 headsets, and ability to withstand daily use make it a staple in professional ground support communication setups worldwide.

Asked October 24, 2025