DEUTSCH HDP20 Connectors

Rugged Composite Connectors

Our DEUTSCH HDP20 connectors are heavy-duty, environmentally sealed, composite shell, multi-pin connectors. These connectors are offered in two plastic shell sizes and in nineteen different configurations. The configurations range from 2 to 47 cavities and accommodate multiple size contacts and wire sizes inside of a single shell.

Product Features:

Specs for DEUTSCH HDP20 connectors
  • Accepts contact sizes 4 (100 amps), 8 (60 amps), 12 (25 amps), 16 (13 amps), and 20 (7.5 amps)
  • 4-22 AWG (25.00-0.35 mm2)
  • 2, 6, 7, 8, 9, 14, 16, 18, 19, 20, 21, 23, 29, 31, 33, 35, and 47 cavity arrangements
  • In-line or flange mount
  • Circular, thermoplastic housing
  • Coupling ring for mating
  • Available accessories: Backshells, boots, dust caps, gaskets, mounting hardware, strain relief


4-22 AWG (25.00-0.35 mm2)

Circular, thermoplastic housing

  1. DEUTSCH HDP20 & HD30 Connector Overview & Assembly Instructions (English)

Learn about our rugged thermoplastic DEUTSCH HDP20 connectors and our heavy-duty aluminum HD30 connectors. Watch this video for an overview of the connectors and for step-by-step instructions on inserting and removing contacts, as well as mating and unmating.

Frequently Asked Questions

Q:    What is an HDP20 connector?

A:    DEUTSCH HDP20 environmentally sealed connectors are designed for cable to cable applications. The HDP20 connectors are used in harsh environment applications where even a small degradation in connection may be critical.

Q:    What are the appropriate applications for HDP20 connectors?

A:    Truck, Bus, Off-highway, Construction, Agriculture, Mining, Emergency Vehicles, Forestry, Recreational, Marine, Motorcycle


Q:    When should I use HDP20 connectors?

A:     DEUTSCH HDP20 connectors provide reliability and performance on the engine or transmission, under the hood, for power control units, bulkheads, on the chassis, or in the cab. HDP20 connectors offer field proven reliability and rugged quality. The HDP20 design strengths include optional flange mounting, multi-pin arrangements, lower costs, and design flexibility. HDP20 connectors offer the designer the ability to use multiple size contacts within a single shell. Several accessories are available including backshells, strain relief, and dust caps.