Bosch 1928404324 Pink Terminal Position Assurance TPA Lock

The Component: Genuine Bosch OEM Terminal Position Assurance (TPA) secondary locking retainer insert / Connector housing secondary lock clip / Precision-molded from high-grade Polyamide (PA66) resin in high-visibility factory pink / Component Part Number: 1 928 404 324 / Alternate OEM Identifiers: Bosch 1928404324 / 1 928 404 324-000 / Bosch Pink Secondary Lock / TPA Insert 1928404324 / Connector Wedge Lock Pink / Terminal Retainer Clip.

Applications & Fitment: High-reliability connector locking accessory engineered for Bosch Compact 1.1m / BDK / Kompakt series female sensor, injector, and ignition coil connector housings across European, commercial vehicle, and motorsport applications. Inserts directly into the primary housing cavity face to perform secondary terminal retention, physically preventing crimp terminal pin back-out caused by severe engine compartment vibration and harness strain. Functions as an essential safety interlock—if any terminal contact is not fully seated into its cavity, the pink TPA wedge cannot be pressed flush, giving technicians instant visual and tactile confirmation of proper terminal installation. Essential replacement stock for harness builders, auto-electricians, ECU repair specialists, and trade distributors replacing damaged or lost factory lock inserts during loom servicing.

Technical Attributes:

- OEM Part Number: 1 928 404 324 / 1928404324 (Manufacturer: Bosch)

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

- Connector Family Compatibility: Fits Bosch Compact, BDK, and Kompakt Series Female Housings

- Function Profile: Secondary Terminal Locking & Mechanical Back-Out Protection

- Structural Material Base: Premium Grade Polyamide 66 (PA66)

- Color Profile: Factory Solid Pink / Magenta (Engineered for instant visual recognition)

- Operating Temperature Limit: -40 to 140 degrees Celsius

- Chemical Resistance: Resistant to automotive fuels, oils, engine coolant, and cleaning solvents

- Commercial Procurement Status: Provided as an individual loose-piece secondary lock insert. Main connector housings, crimp terminals, and wire cavity seals sold separately. Multi-tier trade volume discounts apply automatically at checkout.