Motorsport Connectors

Choosing the wrong connector for a motorsport wiring harness is not a minor error — a connector that can’t handle vibration, fuel vapour, or high pin density will fail at the worst possible moment. XTRA stocks every connector type used in professional race car wiring, from MIL-spec circular autosport connectors to sealed Deutsch series and OEM-spec ECU and sensor kits, backed by 25+ years of motorsport wiring experience. Browse the families below, or use the guide here to pick the right type for your application.

Choosing the Right Motorsport Connector

High-density circular (autosport) — Deutsch Autosport AS Series and Souriau 8STA derive from MIL-DTL-38999 and are directly intermateable across the same shell size and keyway, carrying 8 to 128 circuits in a single connector. These are the standard for main ECU, dash, and data-acquisition harnesses on GT3, WRC, and endurance cars. The compact ASL MicroLITE, ASU Micro UltraLite, and ASX derivatives cover tight-packaging applications where a full-size autosport connector won’t fit.

Sealed rectangular (general purpose) — Deutsch DT, DTM, and DTP are IP67, rated to 125 °C, and field-serviceable with push-in wedgelocks. DT handles signal and low current (Size 16, 13 A), DTM is the compact version for tight sensor runs, and DTP steps up to Size 12 at 25 A for fuel pumps, fans, and power feeds. They appear on virtually every motorsport harness regardless of category.

OEM-spec kits — ECU connector kits for Emtron, MoTeC, Link, and Bosch MS6, and sensor connectors for lambda, MAP, injector, pressure, and temperature sensors. Each kit is the correct mating connector together with the required contacts and seals — everything for one connection in a single part number, ready to crimp and assemble, rather than sourcing the housing, terminals, and seals separately.

Contacts and tooling — contacts, sockets, and pins are sold separately for building custom arrangements or replacing damaged contacts, and professional crimp tooling is essential on MIL-spec contacts, where hand crimping produces inconsistent pull-out force and fails aerospace qualification.