Product Details
Overview
Overview
The Haltech Bosch 4-pin Junior Timer female connector delivers OEM-grade connection quality for critical engine timing sensors and actuators. Essential for maintaining factory reliability in modified ECU installations, this genuine Bosch connector ensures your timing signals stay clean and consistent under the harshest conditions. Whether you're retrofitting a standalone ECU or building custom sensor looms, this connector provides the bulletproof connection your timing circuits demand.
Technical Specifications
- Part Number: HT-030311
- Connector Type: Bosch Junior Timer 4-pin female
- Contact Configuration: 4-way sealed
- Terminal Type: Included pins with secure retention
- Sealing: Weather-resistant housing
- Temperature Rating: -40°C to +125°C operating range
Why You Need This
Timing sensor connections are the nervous system of your engine management — get them wrong and you'll chase phantom misfires, erratic idle, and inconsistent power delivery for months. This Bosch Junior Timer connector is specifically designed for high-frequency timing signals where electrical interference can wreak havoc. We see too many builds using generic automotive connectors that work fine initially but develop intermittent faults as vibration loosens contacts or moisture creeps in.
Common applications include cam position sensors, crank position sensors, VVT solenoids, and ignition coil connections across platforms like SR20DET, RB25/26, 2JZ-GTE, and LS engine swaps. The compact Junior Timer design fits tight engine bay spaces while the sealed housing prevents the corrosion issues that plague standard blade connectors in turbo applications where heat cycling is extreme.
ECU & System Compatibility
Compatible with the full Haltech Elite and Nexus range when building custom engine looms or adapting OEM sensors. Works seamlessly with Elite 550/750/1000/1500/2000/2500 and Nexus R3/R5 installations where you need reliable timing sensor connections. Contact our technical team to confirm the correct connector specification for your specific ECU harness and sensor requirements.
What's in the Box
- 1x Bosch 4-pin Junior Timer female connector housing
- 4x Pre-installed contact pins
- Sealing components and weather protection
Complete Your Build
Most customers building custom ECU looms also require additional Bosch connectors for sensors, injectors, and coils. Contact our technical team for a complete connector specification based on your engine platform and ECU choice — we keep comprehensive Bosch connector stock and can supply pre-assembled looms to save installation time. Our team has hands-on experience with the connector requirements across popular engine swaps and can recommend the complete harness solution for your build.



