Speed Sensor 522‑1643

Title: Speed Sensor 522‑1643 For CAT Engine 3412E 3508B 3406E Excavator Revolution Sensor Construction Machinery Electrical Replacement Parts

Keywords: 522‑1643, speed sensor, revolution sensor, CAT speed sensor, 3412E engine sensor, 3508B sensor, 3406E sensor, excavator electrical sensor, heavy‑duty engine sensor, construction machinery spare parts

🔹Product Overview

This speed sensor Part No.522‑1643 is a critical electrical signal‑detection component specially designed for CAT 3412E, 3508B, 3406E diesel engine. It captures real‑time engine rotational speed signal, transmits accurate speed data to engine control system, supports fuel injection control, speed display and fault diagnosis. Damaged speed sensor will result in no speed reading, engine unstable running, hard starting, speed fluctuation and related fault alarm. Our aftermarket speed sensor is strictly manufactured and signal‑tested according to OEM technical standards for direct replacement.

🔹Product Specifications

🔹Key Features

✅ Manufactured following OEM size and electrical parameters, perfect compatibility with CAT 3412E 3508B 3406E engine

✅ High‑precision sensing chip, stable signal output, anti‑interference, high temperature and vibration resistance to adapt harsh working environment

✅ Each sensor passes signal detection test before delivery to ensure accurate speed feedback

✅ Effectively resolve issues: no tachometer display, engine difficult start, unstable idling, speed jitter and fault alarm codes

✅ Restore normal engine speed monitoring and ECU data feedback

✅ Complete with installation gasket, plug‑and‑play installation without extra modification

✅ Shorten equipment downtime for machinery repair and maintenance sites

🔹Application Scope

Suitable for CAT 3412E, 3508B, 3406E engine equipped on excavators, generator sets and other heavy‑duty construction machinery. Ideal replacement for original faulty speed sensor. Widely adopted by machinery repair workshops, equipment service centers and construction machinery spare‑parts wholesale suppliers.

🔹Our Advantages

We supply full range of excavator and construction machinery spare parts, covering engine components, hydraulic parts and various electrical sensors. All products go through strict inspection before packing. We support small sample orders and large‑volume wholesale orders. Fast delivery and professional pre‑sales & after‑sales technical support. If you require other spare parts for related machine models, please send us part numbers for quotation.

🔹Packaging & Shipping

• Packaging: Each speed sensor uses shock‑proof and dust‑proof inner protection, packed in standard export carton. Custom wooden case is available for bulk orders to avoid damage during long‑distance sea transit. Moisture‑proof treatment for overseas shipment.
• Shipping Methods: Support DHL/FedEx/UPS/TNT express, air freight, sea freight, LCL & FCL.
• Lead Time: 1‑3 working days for in‑stock goods; 7‑15 working days for out‑of‑stock bulk orders.
• Loading Port: Major ports in China, shipment can be arranged via customer‑designated freight forwarder.

🔹Contact Us

1. Please send your inquiry with part number, machine model, quantity and your special requirements, we will reply you within 24 working hours.
2. OEM & customized service are available for large‑volume orders.
3. Professional technical support for parts matching confirmation and installation guidance.
4. Welcome machinery dealers, repair shops and trading companies to establish long‑term cooperation.