Original speed sensor 258-4521 is mainly used in CAT mechanical
sensing components.
The 258-4521 speed sensor is an electronic speed sensing component
used in CAT construction machinery and heavy equipment. It is
primarily responsible for collecting the operating speed signal of
the engine or transmission system. This sensor connects to the
equipment control module via a three-pin DT06 connector,
continuously and stably outputting a speed signal to help the
control system achieve power regulation, operation monitoring, and
safety protection.
| Part Number | 258-4521 |
| Type | Speed Sensor |
| Signal Interface | Three-pin DT06 connector |
| Construction Material | Metal housing + industrial-grade sensing element |
Features and Advantages
Stable Speed Signal: Provides reliable speed data for ECUs or control systems
Industrial-Grade Connector Design: Three-pin DT06 connector, suitable for harsh operating
environments
Durable Construction: Metal housing design, strong vibration and interference resistance
Easy Replacement: Standard interface, can directly replace existing sensors
Installation Instructions
Confirm that the 258-4521 speed sensor model matches the original
device.
Installation should be performed with the device off and power off.
Clean the installation location to prevent impurities from
affecting signal acquisition.
Install the sensor in the designated position and secure it firmly.
Connect the three-pin DT06 connector and ensure a good seal.
Start the device and check if the speed signal feedback is normal.
Frequently Asked Questions
Q1: What is your main products?
A1: We are specialized in the excavator engine spare parts, for
example Main cylinder block, cylinder head, crankshaft, Engine
assembly, piston, cylinder liner, piston ring, camshaft, connecting
rod, oil pump, water pump, valve series products, movement, etc.
almost all parts of the entire engine.
Q2: Do you test all products before shipping?
A2: Yes, we conduct 100% testing before shipping.
Q3: Which engine models is this Speed Sensor compatible with?
A3: This product is designed for specific diesel engine models. If
you can provide the engine model or original part number, we can
confirm compatibility before shipping to avoid incompatibility
issues.
Q4: Can you provide cross-reference information for OEM part
numbers?
A4: Yes, we support original part interchange. Please provide the
original part number, and we will verify the replacement part
accordingly.
Q5: What should I do if there is a problem with the product?
A5: Our products undergo professional testing and are of very
stable quality. If you do find any problems, please contact us. We
have a professional after-sales team to help you solve the problem.
Why Choose Us?
• Over 20 years of experience specializing in construction
machinery, engines, and parts – with stable experience supplying
mainstream brands and models.
• Extensive experience in model matching enables us to provide
customers with accurate parts selection, reducing procurement
risks.
• A long-term, stable, and reliable supply system ensures reliable
product sourcing and meets continuous procurement needs.
• For product information or quotations, our professional team will
provide you with detailed answers immediately upon receiving your
request.
