1x type male terminal used in: 4-pin oxygen sensor connectors (OEM 185001-3).5x types female terminals used in: 4-pin ignition coil connectors, 2-pin fog lamp sensor connectors, 4-pin oxygen sensor connectors (OEM 144998-5), 2, 3 & 4-pin multi-purpose: temperature, air flow, camshaft, oxygen & headlight sensor connectors (OEM 211PC022S0049, 211PC032S0049, 211PC042S4021).6-pin multi-purpose: fuel pump, throttle position & headlight sensor sensor connectors (OEM 211PC069S0049), 2-pin electrical map sensor connectors (OEM 1544317-1, 1544678-2), 6-pin multi-purpose: fuel pump, throttle position & headlight sensor sensor connectors (OEM 211PC069S0049), 4-pin air pressure sensor connectors.Full range of sensor connectors, terminal top up packs and associated weatherproof seals available from Connect.For the perfect seal on these 1.5 & 3.5 series terminals & seals please use Laser ratchet crimping tool, Part No. 7642, which has specially designed jaws for a professional crimp. *Note: all OEM references are equivalent to OEM.