Sumitomo 6918-2810 4-Way Female TPA Lock Retainer HVG

The Component: Genuine Sumitomo OEM 4-way front-loading female terminal position assurance (TPA) lock / High-integrity secondary lock insert retainer for HV/HVG sealed series connectors / 4-position inline grid alignment profile / Slips directly into the front face of the mating plug housing to physically secure female terminals / Molded from premium, chemical-resistant, heat-stabilized glass-reinforced PBT (Polybutylene Terephthalate) / Component Part Number: 6918-2810 / Alternate OEM Part Identifier: RET-HV4-4F-LGR.

Applications & Fitment: Highly specialized secondary lock retainer engineered for Sumitomo HV/HVG Sealed Series 4-position 1.0mm (040) female connector plugs. This authentic light gray TPA lock is standard factory equipment used on automotive wiring harnesses—commonly found in Japanese imports from Toyota, Lexus, Honda, and Kawasaki. It is designed to slide directly into the plug face of 4-way housings (such as the black 6189-7039 or blue 6189-7041 connectors) commonly wired to critical under-hood components like alternator regulators, ignition coil assemblies, fuel pumps, and gear position sensors. Once female crimp sockets are loaded into the main plug block, pushing this retainer home provides a positive mechanical block. Even under severe drivetrain resonance, road spray, or thermal cycles, the terminals cannot pull out or back-out of their cavities. Essential inventory for auto-electrical repair workshops, bespoke wire harness manufacturing, and specialized connector trade distributors.

Technical Attributes:

- Manufacturer Part Number: 6918-2810 / RET-HV4-4F-LGR (Brand: Sumitomo Wiring Systems, Ltd)

- Product Component Classification: TPA Retainer / Secondary Lock Insert

- Total Position Count: 4-Way / 4-Cavity Guide

- Series Family Compatibility: Sumitomo HV/HVG Sealed Series (1.0mm / 040)

- Housing Compatibility: Fits 4-Position female plugs including 6189-7039 and 6189-7041

- Primary Function: High-integrity secondary terminal back-out prevention

- Installation Method: Front-loading snap-in slide lock

- Structural Material Base: High-grade PBT (Polybutylene Terephthalate)

- Color Profile: Factory Light Gray (LGR)

- Physical Dimensions: Compact profile matched precisely to the interior cavity of the 4-way HV/HVG female receptacle

- Commercial Procurement Status: Provided as an individual replacement TPA secondary locking piece. Mating female connector housings, crimp terminals, and wire seals are ordered independently. Multi-tier volume wholesale trade discounts apply automatically within the cart system.