Sumitomo 6918-0323 2-Way TPA Secondary Lock Retainer

The Component: Genuine Sumitomo Wiring Systems OEM 2-position Terminal Position Assurance (TPA) secondary locking retainer / Front-insertable terminal anti-backout clip / Designed for 2-way 2.3mm (090) HW Series male connector housing cavities / Molded from natural semi-translucent Polybutylene Terephthalate (PBT) resin / Component Part Number: 6918-0323 / Alternate OEM Identifiers: 69180323 / Sumitomo 6918-0323 / HW 090 2-Way TPA Lock / Retainer for 6181-0070 series.

Applications & Fitment: High-reliability secondary terminal locking clip engineered to ensure 100% terminal retention across Japanese OEM vehicle platforms (Toyota, Lexus, Honda, Nissan). Pressed into the front mating face of 2-way 2.3mm (.090) HW series male connector housings (such as Sumitomo 6181-0070 / Toyota 90980-11155) after wire terminals are inserted into the housing cavities. Acts as an anti-backout mechanism: if a crimped terminal is not fully seated, the TPA clip will not lock into place, giving technicians instant visual and physical feedback. Prevents contact back-out caused by wire pull, harness flexing, and heavy engine bay vibration (-40 to 125 degrees Celsius). Essential replacement stock for auto-electricians, harness repair technicians, engine builders, and automotive trade distributors.

Technical Attributes:

- OEM Part Number: 6918-0323 / 69180323 (Manufacturer: Sumitomo Wiring Systems)

- Product Component Classification: Terminal Position Assurance (TPA) / Secondary Locking Retainer Clip

- Connector Family Series Compatibility: Sumitomo HW 2.3mm (090) Series 2-Way Male Housings

- Total Position Capacity: 2-Way / 2-Pin Configuration

- Housing Compatibility: Fits 2-position male connector housings (e.g., Sumitomo 6181-0070 / Toyota 90980-11155)

- Compatible Terminal System Size: 2.30 mm (.090 Terminal System)

- Functional Role: Terminal anti-backout protection & secondary retention lock

- Structural Material Base: Premium Natural Polybutylene Terephthalate (PBT Resin)

- Color Profile: Factory Natural / Off-White

- Operating Temperature Limit: -40 to 125 degrees Celsius

- Commercial Procurement Status: Provided as an individual loose TPA locking retainer clip. Mating connector housings, male crimp terminals, and wire seals are sold separately. Multi-tier trade volume discounts apply automatically at checkout.