Bosch 1 928 403 870 3-Way Female Sealed Connector | JPT Compact

The Component: Genuine Bosch Automotive OEM 3-position sealed female socket housing / Premium Bosch Compact 1.1 / JPT (Junior Power Timer) series waterproof connector assembly / 3-way single-row inline cavity profile / External top-locking release latch mechanism / High-visibility internal orange silicone perimeter seal / Molded from glass-fiber reinforced, heat-stabilized PBT / Component Part Number: 1 928 403 870 / Alternate OEM Identifier: 1928403870.

Applications & Fitment: High-performance waterproof electrical connector interface engineered for harsh under-bonnet, powertrain, and chassis environments. Widely specified across European OEM vehicle platforms—including BMW, Volkswagen Audi Group (VAG), Mercedes-Benz, Volvo, Porsche, and Bosch Common Rail injection systems—for camshaft and crankshaft position sensors, fuel pressure control valves, knock sensors, and auxiliary solenoids. Designed explicitly to accept 2.8mm Junior Power Timer (JPT) female socket crimp contacts. Features a robust weather seal and secondary terminal retention clip to ensure complete environmental seal integrity and prevent terminal back-out under extreme engine vibration and thermal cycling. Engineered to operate continuously across temperature ranges from -40 up to 130 degrees Celsius. Essential catalog stock for auto-electrical repair shops, motorsport harness fabricators, and automotive trade distributors.

Technical Attributes:

- Manufacturer Part Number: 1 928 403 870 / 1928403870 (Brand: Bosch Automotive)

- Product Component Classification: Compact 1.1 / JPT Series Sealed Female Housing

- Total Position Count: 3-Way / 3-Cavity Female Plug

- Cavity Layout Matrix: 1x3 Single-Row Inline Configuration Profile

- Terminal System Compatibility: Accepts 2.8mm JPT (Junior Power Timer) Female Socket Crimp Contacts

- Primary Locking Mechanism: External Top-Latch Lever Lock

- Ingress Protection Status: Weatherproof / Waterproof Fully Sealable (Requires compatible wire seals)

- Structural Material Base: Premium Glass-Fiber Reinforced PBT (Polybutylene Terephthalate)

- Color Profile: Factory Black Housing with Internal Orange Silicone Seal Ring

- Operating Temperature Limit: -40 to 130 degrees Celsius

- Commercial Procurement Status: Provided as an individual unpopulated 3-way female housing assembly. Female crimp socket terminals, individual wire seals, and mating male tab connectors (e.g., Bosch 1 928 404 227) are purchased separately. Multi-tier trade volume discounts apply automatically at checkout.