31-Pin Automotive Waterproof Connector – HDP26-24-31PE-L017, Heavy-Duty Plastic Wire Harness Connector

HDP26-24-31PE-L017 is a 31-pin heavy-duty waterproof automotive connector from the TE Connectivity / Deutsch HDP20 series — a large-format, high pin count connector used in truck, agricultural, and industrial vehicle wiring harnesses. The HDP20 series (Heavy-Duty Power, 20-series contacts) provides IP67 sealing, high current capacity per contact, and robust mechanical construction for the demanding environments of commercial vehicles and agricultural equipment. The 31-pin configuration supports complex multi-circuit harness connections in a single connector.

Key Specifications

• Part Number: HDP26-24-31PE-L017
• Series: Deutsch / TE Connectivity HDP20
• Pin Count: 31 pins
• Contact Size: Size 20 (7.5A per contact)
• IP Rating: IP67
• Wire Range: 20–24AWG (0.5–0.35mm²)
• Operating Temperature: -55°C to +125°C
• Housing Material: Glass-filled nylon (PA66-GF), UL94 V-0

HDP20 Series — Application Context

The Deutsch HDP20 series is the high pin count extension of the DT/DTM connector family, designed for applications requiring 20–56 circuits in a single sealed connector. Common applications in commercial vehicles:

• Truck cab-to-chassis: Main harness connector between cab wiring and chassis/body wiring
• Agricultural implements: Tractor-to-implement harness connections (ISOBUS and proprietary)
• Construction equipment: Cab-to-boom and cab-to-chassis connections on excavators and cranes
• Engine control: ECM (Engine Control Module) harness connectors on diesel engines

Frequently Asked Questions

What contacts are compatible with HDP26-24-31PE-L017?

The HDP20 series uses size 20 contacts: 0460-202-20141 (male pin) and 0462-201-20141 (female socket). These are different from DT series size 16 contacts — do not mix contact sizes between series. The HDP20 size 20 contacts require the Deutsch HDT-48-00 crimp tool with size 20 dies (different from the size 16 dies used for DT series contacts).

How do I identify the correct replacement connector for my vehicle?

The part number HDP26-24-31PE-L017 is stamped or molded into the connector housing. Cross-reference this number with the vehicle’s wiring diagram or parts catalog to verify it is the correct replacement. For agricultural equipment, the connector location is typically documented in the implement’s electrical schematic. Contact the equipment manufacturer’s parts department if the part number is not visible on the connector.

Can I repair individual terminals in an HDP20 connector?

Yes. Individual size 20 contacts can be extracted using a Deutsch extraction tool and replaced without replacing the entire connector housing. This is the preferred repair method when only 1–3 terminals are damaged — replacing the entire 31-pin connector and re-terminating all 31 wires is significantly more labor-intensive than replacing individual terminals.

Typical Applications

• Commercial trucks: Cab-to-chassis main harness connections
• Agricultural equipment: Tractor-to-implement and ECM harness connections
• Construction equipment: Multi-circuit control harness connections
• Industrial vehicles: Forklift and material handling equipment harness connections

Package Contents

1 piece — HDP26-24-31PE-L017 31-pin automotive waterproof connector (housing only or complete set as specified). Contacts and wire seals ordered separately if not included.