ITW GSE/Hobart CP1765-3 Replacement 28V DC GPU Plug Head, 4/0 AWG

When the connector fails, technicians can replace only the plug head instead of discarding the entire GPU cable assembly. This significantly reduces replacement costs and extends the cable's useful life. Over time, this approach lowers overall ground power maintenance expenses while maintaining equipment reliability.

Ground power unit (GPU) cables often wear at the plug head due to repeated connections, environmental exposure, or stress during use. By replacing just the connector, the rest of the cable remains serviceable, avoiding unnecessary waste. This extends the overall service life of the GPU cable assembly while maintaining safe and reliable aircraft power delivery.

The ITW GSE/Hobart CP1765-3 corresponds to military part number MS25488-27, ensuring it meets stringent defense and aviation standards. It is compatible with MS90347 cable assemblies in sizes -19 through -24, which are common in both civilian and military ground support applications. This compliance ensures interchangeability and reliability in demanding environments.

The CP1765-3 is designed for 4/0 AWG single-conductor MIL-C-5756 cables, which are standard for 28V DC aircraft ground power connections. These heavy-duty cables provide the necessary current-carrying capacity to support modern aircraft power demands. Proper cable matching is essential to ensure safe operation and compliance with GPU specifications.

This replacement GPU plug head is constructed from a proprietary synthetic elastomer known for excellent moisture, chemical, and abrasion resistance. These qualities make it ideal for ramp and hangar environments where exposure to hydraulic fluid, fuel, and weather is common. The material ensures long-lasting durability even under heavy use.

The power contacts in the CP1765-3 are machined from copper and then silver-plated. Silver plating reduces electrical resistance at the contact points, minimizing heat buildup and energy loss during power transfer. This design ensures a secure, low-resistance connection for consistent 28V DC delivery to the aircraft.

The contact lugs for this GPU plug can be either crimped or soldered to the cable, depending on the technician’s preference or the maintenance procedure in use. Crimping provides a fast, reliable mechanical bond, while soldering creates a permanent electrical connection. Both methods ensure secure attachment and long service life.

Yes, the CP1765-3 is specifically designed to replace non-functional molded-head style GPU cable plugs. This allows operators to restore cables that might otherwise be discarded due to connector failure. By providing a field-replaceable solution, the CP1765-3 reduces costs and keeps GPU cables in service longer.

Yes, the CP1765-3 is well-suited for portable receptacles, making it valuable for extending existing cables or creating portable power setups. Its durable design ensures that connections remain secure even when moved between multiple aircraft. This flexibility makes it popular in both fixed maintenance facilities and mobile ground support operations.

Silver-plated copper contacts provide superior conductivity, corrosion resistance, and lower contact resistance compared to unplated metals. This results in reduced energy loss, cooler operation, and longer connector life. For aircraft power applications, these benefits translate into greater reliability and safer ground servicing.

The CP1765-3 helps minimize aircraft downtime by allowing quick field replacement of damaged GPU connectors. Maintenance crews can restore a cable to service in minutes rather than waiting for a new assembly. This ensures uninterrupted ground power availability for preflight preparation, avionics checks, and system testing.

Yes, the CP1765-3 is widely used in both commercial aviation and military operations. Its MIL-spec compliance ensures it meets military standards, while its compatibility with civilian GPU systems makes it versatile for airline, MRO, and defense applications. This cross-industry use highlights its reliability and broad acceptance.

Technicians should account for exposure to moisture, fuel, hydraulic fluid, and physical abrasion when operating GPUs on ramps or hangar floors. The CP1765-3’s elastomer construction protects against these hazards, but regular inspection is recommended. Checking for wear, contamination, and secure connections helps maintain optimal performance.

Yes, one of the key benefits of the CP1765-3 is its field-replaceable design. Maintenance personnel can install the plug on-site without sending the cable out for specialized service. This convenience supports quicker turnaround times and reduces logistical challenges in both line maintenance and hangar operations.