Non-insulated male terminals used in: 4-pin oxygen sensor connectors (equivalent to OEM 14521427964), Part No. 37432. Overall length: 27.37 x 3.19mm wide; pin length: 9.86mm. To be used with yellow weatherproof seals, Part No. 37484. For the perfect seal on the terminals & seals please use Laser ratchet crimping tool, Part No. 7642, which has specially designed jaws for a professional crimp. Included in assorted box of male & female terminals to suit Mercedes-Benz & BMW electrical sensors, Part No. 37685.