MS3476L18-11P PLUG CONNECTOR

MS3476L18-11P — 11-Way Olive-Drab Cadmium-Plated Aluminium MS3476 Plug Connector (Pin (Male))

The MS3476L18-11P is a 11-way olive-drab cadmium-plated aluminium MS3476 circular mil-spec plug connector with pin (male) contacts, manufactured to MIL-DTL-26482 Series II standard. The MS3476 is the cable-mount plug counterpart to the MS3470 flanged receptacle, forming the mobile half of a panel or bulkhead circular connector pair. The 11-way insert provides sufficient circuits for sensor cluster connectors, ECU sub-connectors, and instrument interfaces within a shell size 18 body without unnecessary bulk.

MS3476 vs MS3470 — Plug and Receptacle Roles

The MS3476 and MS3470 are complementary halves of the same MIL-DTL-26482 Series II threaded-coupling connector system. The MS3476 is the cable-mount plug — it is wired to the harness and carries the male or female contact insert that engages with the mating MS3470 receptacle when assembled. The MS3470 is the panel or bulkhead-mount receptacle — it is fixed to the chassis, panel, or equipment body using its flanged mount and nut plate. Together, the MS3476 plug and MS3470 receptacle form a complete circular connector assembly with a threaded coupling that provides secure, vibration-resistant mating for all semi-permanent harness junction points in a race car or performance vehicle.

Threaded Coupling — Series II Connection Security

The MIL-DTL-26482 Series II threaded coupling mechanism provides a highly secure mated connection that resists accidental unmating under vibration, shock loads, and sustained high-G cornering. This makes the MS3476 and MS3470 the preferred choice for semi-permanent harness connections — engine block bulkhead feedthroughs, transmission tunnel connectors, chassis-to-body harness interfaces, and any junction point that remains mated throughout a race event and is only disconnected during service. For connectors requiring rapid pit lane engagement and disengagement, the bayonet-coupling MS3474/MS3471 Series I pairing may be more appropriate.

Shell Size 18 — Insert Arrangement -11P

Shell size 18 is suited to high-channel-count engine harness bulkheads, PDM connectors, and complex sensor cluster interfaces requiring a larger shell. The -11P insert defines the exact contact pattern and gender. The 11-way insert provides sufficient circuits for sensor cluster connectors, ECU sub-connectors, and instrument interfaces within a shell size 18 body without unnecessary bulk. Always cross-reference the insert arrangement against the harness schematic before crimping to confirm the pin-out assignment matches the design intent.

Finish — Olive-Drab Cadmium-Plated Aluminium

The olive-drab cadmium-plated finish is the traditional mil-spec surface treatment, providing proven corrosion resistance and compatibility with the full range of MS connector accessories including backshells, strain reliefs, and dust caps.

Contact Type — Pin (Male)

Pin (male) contacts project from the insert face. Appropriate dust caps should protect exposed pin contacts during unmated storage and transport between service intervals. Contacts for this insert are size 16 or size 20 depending on the specific arrangement — consult the connector datasheet to confirm the correct contact part number and crimp die for the wire gauge in use.

Available from Arctic Performance Parts

Arctic Performance Parts stocks MS3476 circular plug connectors across all standard shell sizes and insert arrangements in both olive-drab and black anodised finishes, supporting professional motorsport harness builders and race car fabricators across Norway, Sweden, and Denmark. Lead time 1–2 weeks for quantities beyond current stock.