Deutsch Autosport AS 55-Way Inline — Pin (Male) — Blue Key (B)
The Deutsch Autosport AS 55-Way Inline Pin (Male) Connector with Blue (B) Keying Insert — SKU: AS122-55PB is a professional MIL-spec-grade motorsport connector for high-density ECU main harness connectors, full PDM system separable joins, and complex race car loom interfaces in race cars and performance vehicles across Norway, Sweden, and Denmark. This pin half is the active contact side — the gold-plated pin terminals mate with the corresponding socket (socket) half, transferring all 55 circuits across the inline separable join when the connector is locked. Configured as an inline connector — in-line harness separable join — both halves are free, cable-mounted connectors within the wire run.
Deutsch Autosport AS — 55-circuit Inline Connector
The Deutsch AS series is the standard Autosport circular connector format for professional motorsport — providing the 55-circuit capacity required for this application in a robust aluminium alloy shell with push-pull positive locking, gold-plated contacts, and full MIL-spec environmental sealing for race-condition reliability. Delivers very high circuit density for ecu main harness interfaces and complete pdm wiring system separable joins — typically used where the entire ecu sensor loom and a significant portion of the pdm output wiring must cross a single separable join point. The 55-circuit AS inline is specified for main ECU harness interfaces and full PDM wiring system separation points where maximum circuit density in a single mid-size connector is required.
Blue Key (B) — The second keying position in the deutsch as system
As the second keying position in the Deutsch AS system, the Blue B key is assigned to the second 55-way AS connector pair in a harness after Yellow A has been allocated to the first. Blue B is the second key assignment in a harness where two or more AS connectors of the same circuit count are used. Once Yellow A is assigned to the first connector pair, Blue B is assigned to the second — ensuring these two physically identical connectors cannot be cross-mated during installation or servicing of the harness. This two-key system is the most common mis-mate prevention strategy on race car harness builds where two 55-way AS inline joins are required at the same loom separation point — for example, splitting a high-circuit-count ECU and PDM loom into two parallel 55-circuit bundles.
Contact Type — Pin (Male)
This listing is for the pin half of the 55-way AS inline pair — the active contact half — the pin terminals make physical contact with the socket terminals when mated, transferring electrical signals and power across the separable join. The corresponding socket half of the same circuit count and key colour is required to complete the mated connector pair. AS contacts are ordered separately — select the correct contact part number for your wire gauge and current requirements.
Technical Specifications
- Series: Deutsch Autosport AS
- Circuits: 55-way
- Configuration: Inline
- Contact type: Pin (Male)
- Key colour: Blue (Key B)
- Shell material: Aluminium alloy
- Operating temperature: -65°C to +175°C
- Locking: Push-pull positive lock
- Typical application: Second connector in a multi-connector harness — assigned after yellow a when two same-circuit-count as connectors are present
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