Deutsch DT 4-Pin Connector – DT06-4S / DT06-4SA / DT06-4SB / DT06-4SC / DT06-4SD | Type A / B / C / D Female

The Deutsch DT06-4S series are 4-pin sealed female connectors from the Deutsch DT series – the industry standard for heavy-duty vehicle, agricultural, construction, and motorsport wiring. The A, B, C, and D suffixes denote different keying configurations that prevent mis-mating between circuits. IP67-rated sealed design ensures reliable performance in demanding environments.

Key Specifications

About the Deutsch DT Series

The Deutsch DT series is the most widely used heavy-duty sealed connector system in the world. DT connectors are standard equipment on commercial trucks, agricultural machinery (John Deere, Case IH, AGCO), construction equipment (Caterpillar, Komatsu, Volvo CE), and motorsport wiring looms. The keyed variants (A/B/C/D) allow multiple circuits to use the same connector body while preventing accidental mis-mating – critical in safety-critical systems.

Keying Guide

• DT06-4S (Standard) – No keying, universal fit
• DT06-4SA (Type A) – Key position A, mates with DT04-4PA
• DT06-4SB (Type B) – Key position B, mates with DT04-4PB
• DT06-4SC (Type C) – Key position C, mates with DT04-4PC
• DT06-4SD (Type D) – Key position D, mates with DT04-4PD

Select the keying type matching your existing DT connector system. Keyed variants only mate with the corresponding keyed plug.

Installation Notes

• Use Deutsch DT series size 16 contacts for 20–16 AWG wire
• Insert wire seals before crimping terminals for IP67 rating
• Use a Deutsch-compatible crimp tool (TE Connectivity HDT-48-00 or equivalent)
• Wedge lock must be fully seated after terminal insertion

Frequently Asked Questions

Q: What is the difference between DT06-4S, 4SA, 4SB, 4SC, and 4SD?
A: The suffix (A/B/C/D) indicates the keying position. Keyed variants prevent mis-mating between different circuits using the same connector body. Standard DT06-4S has no keying and mates with any DT04-4P plug.

Q: What wire gauge is compatible?
A: DT series connectors accept 20–12 AWG wire with the appropriate size 16 contacts and wire seals.

Q: Is this IP67 rated?
A: Yes. The DT series is rated IP67 (1 meter water immersion for 30 minutes) when properly assembled with wire seals and wedge lock.

Q: Are terminals included?
A: Terminals are not included with bare connectors. Pre-wired variants have leads pre-crimped with terminals installed.

Common Applications

• Commercial truck and trailer wiring (Cummins, Detroit Diesel, Volvo)
• Agricultural equipment harness (John Deere, Case IH, AGCO, Claas)
• Construction machinery wiring (Caterpillar, Komatsu, Volvo CE)
• Motorsport ECU and sensor harnesses
• Marine and off-road vehicle custom wiring