{"product_id":"5-pin-automotive-waterproof-connector-hd057y-1-5-21-wire-harness-sensor-actuator","title":"5-Pin Automotive Waterproof Connector – HD057Y-1.5-21, Plastic Wire Harness Connector for Automotive Sensor \u0026 Actuator Wiring","description":"\u003ch2\u003e5-Pin Automotive Waterproof Connector – HD057Y-1.5-21, Plastic Wire Harness Connector\u003c\/h2\u003e\n\n\u003cp\u003eHD057Y-1.5-21 is a 5-pin waterproof automotive connector used for sensor and actuator wiring harness connections. The designation decodes as: HD057Y = connector series; 1.5 = 1.5mm contact pitch; 21 = housing variant. The 5-pin configuration is common for sensors and actuators requiring power supply, ground, and multiple signal circuits: throttle position sensors (TPS), mass airflow sensors (MAF), and multi-function actuators. IP67 waterproof construction ensures reliable operation in engine bay and underbody mounting locations.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HD057Y-1.5-21\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePin Count:\u003c\/strong\u003e 5 pins\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContact Pitch:\u003c\/strong\u003e 1.5mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIP Rating:\u003c\/strong\u003e IP67\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHousing Material:\u003c\/strong\u003e PA66 nylon, flame retardant\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -40°C to +125°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Automotive sensor and actuator wiring harness connections\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e5-Pin Connector — Common Sensor Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThrottle Position Sensor (TPS):\u003c\/strong\u003e 5V supply, ground, TPS1 signal, TPS2 signal, and idle switch — 5-pin connectors are standard for dual-track TPS sensors\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMass Airflow Sensor (MAF):\u003c\/strong\u003e Power supply, ground, MAF signal, intake air temperature signal, and shield\/return — 5-pin connectors for combined MAF\/IAT sensors\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCamshaft\/Crankshaft sensors:\u003c\/strong\u003e Some variable valve timing actuators use 5-pin connectors for position feedback and control circuits\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTransmission solenoids:\u003c\/strong\u003e 5-pin connectors for multi-solenoid transmission control assemblies\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch4\u003eHow do I identify the correct replacement for HD057Y-1.5-21?\u003c\/h4\u003e\n\u003cp\u003eThe part number HD057Y-1.5-21 is typically molded into the connector housing. Cross-reference with the vehicle’s parts catalog or wiring diagram to verify it is the correct replacement. Verify: pin count (5), contact pitch (1.5mm), connector gender, and locking mechanism. For sensor connectors, also verify the connector orientation — some sensors have a specific connector orientation that determines which variant is required.\u003c\/p\u003e\n\n\u003ch4\u003eWhat contacts are compatible with HD057Y-1.5-21?\u003c\/h4\u003e\n\u003cp\u003eThe HD057Y connector uses 1.5mm pitch contacts. Identify the correct contact part number from the connector’s datasheet or the vehicle’s wiring diagram parts list. 1.5mm contacts require a dedicated micro-crimp tool — do not use standard 2.8mm automotive crimp tools on 1.5mm contacts.\u003c\/p\u003e\n\n\u003ch4\u003eWhat fault codes indicate a sensor connector problem?\u003c\/h4\u003e\n\u003cp\u003eSensor connector faults typically produce circuit-related fault codes: P0120–P0124 (TPS circuit), P0100–P0104 (MAF circuit), P0340–P0344 (CMP sensor circuit). These codes can be caused by corroded terminals, terminal push-back, or a cracked connector housing. Inspect the connector before replacing the sensor — connector repair is significantly cheaper than sensor replacement.\u003c\/p\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTPS repair:\u003c\/strong\u003e Replacing damaged throttle position sensor connector housings\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMAF sensor repair:\u003c\/strong\u003e Replacing damaged mass airflow sensor connector housings\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActuator wiring:\u003c\/strong\u003e 5-pin actuator connector replacement\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAutomotive workshops:\u003c\/strong\u003e Workshop stock for 5-pin sensor connector repairs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cp\u003e1 piece — HD057Y-1.5-21 5-pin automotive waterproof connector (housing as specified). Contacts and wire seals ordered separately if not included.\u003c\/p\u003e","brand":"Cable Parts Online","offers":[{"title":"2sets \/ no terminal \/ 1pcs","offer_id":47850559930613,"sku":"14:200004889#2sets;200001249:202408827#1pcs;200497261:203372044#no terminal","price":71.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3494\/0149\/files\/Se85b545f96764365a2b47e0ef0cdad21u.webp?v=1773896243","url":"https:\/\/www.csldmcml.com\/products\/5-pin-automotive-waterproof-connector-hd057y-1-5-21-wire-harness-sensor-actuator","provider":"Cable Parts Online","version":"1.0","type":"link"}