Non-insulated female terminals used in: 4-pin ignition coil connectors, Part No. 37586, 2-pin fog lamp sensor connectors, Part No. 37587, 4-pin oxygen sensor connectors (equivalent to OEM 144998-5), Part No. 37597. Overall length: 19.59 x 2.7mm wide. To be used with blue weatherproof seals, Part No. 37358. 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 Citroën & Peugeot electrical sensors, Part No. 37687 & Volvo, Part No. 37688. Also found in assorted connector & harness repair kit, Part No. 37340.