Revolution Speed Sensor 324-4131 for Caterpillar 320C 320D Engine Parts

Product Details

Product Overview

This high-quality Revolution Speed Sensor, bearing the OEM reference number 324-4131, is specifically designed for integration with Caterpillar 320C and 320D excavator engines. As a critical component of the engine management system, this sensor accurately monitors the rotational speed of the engine’s crankshaft or flywheel, providing essential data to the ECU for precise fuel injection timing and overall engine performance.

Manufactured by, this sensor is built to meet OEM specifications, ensuring a direct fit and reliable operation. It is a vital replacement part for maintaining the efficiency, power output, and emissions compliance of your Caterpillar heavy machinery. Whether you are performing routine maintenance or a major overhaul, this sensor is a key component for restoring optimal engine function.

Key Features & Benefits

• OEM Specification Compliance: Manufactured to match the exact size and performance characteristics of the original Caterpillar part, guaranteeing a seamless replacement.
• Accurate Speed Detection: Provides precise rotational speed data to the engine control unit (ECU), which is critical for optimizing fuel injection, reducing emissions, and preventing engine damage.
• Durable Construction: Built with robust materials to withstand the high vibration, extreme temperatures, and harsh operating conditions typical of construction and industrial environments.
• Direct Fit Installation: Designed as a plug-and-play component for the 320C and 320D models, minimizing downtime during replacement.
• Enhanced Engine Performance: A properly functioning speed sensor ensures smooth idling, stable power delivery, and improved fuel economy.
• Broad Application Versatility: While primarily for excavators, this sensor is also suitable for various industrial, agricultural, marine, and genset applications using the same Caterpillar engine platforms.

Technical Specifications

OEM Cross-Reference

This Revolution Speed Sensor is a direct replacement for the following genuine OEM part numbers:

• Caterpillar OEM: 324-4131

This part is designed to match the form, fit, and function of the original equipment component. Please verify your existing part number to ensure compatibility.

Compatibility

This sensor is commonly used for the following applications:

• Engine Models: Engines fitted to Caterpillar 320C and 320D excavators.
• Vehicle/Equipment Applications: Construction & Industrial (Excavators), Agriculture, Genset (Generator Sets), Marine, and Material Handling equipment utilizing the same Caterpillar engine platform.

Important Fitment Note: While this part is specifically designed for the 320C and 320D models, it may be compatible with other Caterpillar machinery using the same engine series. We strongly recommend comparing the sensor’s physical dimensions and connector type with your original part before purchase to ensure a perfect fit.

Global Supply & Distribution

As a premier supplier of aftermarket engine parts, we offer reliable worldwide shipping to meet the demands of the global B2B market. Our distribution network efficiently serves major industrial centers across:

• North America: Fast delivery to ports and inland hubs in the USA, Canada, and Mexico.
• Europe: Efficient logistics to major European ports and industrial zones.
• Asia-Pacific: Strategic shipping routes to Australia, Southeast Asia, and the Middle East.
• South America & Africa: Dedicated support for emerging markets and heavy equipment fleets.

We specialize in export logistics, ensuring that your order is professionally packed and documented for smooth international customs clearance. Whether you need a single sensor or bulk quantities for a fleet, we are equipped to fulfill your order promptly.

Quality Assurance

At, quality is our highest priority. Each Revolution Speed Sensor undergoes rigorous testing to ensure it meets strict performance and durability standards.

• Manufacturing Standards: Produced in ISO-certified facilities, adhering to international quality management systems.
• Testing Procedures: Each unit is subjected to a Machinery Test Report and a Video Outgoing Inspection to verify electrical output and physical integrity before shipment.
• Warranty: We stand behind the quality of our product with a 6-month warranty against manufacturing defects, providing you with peace of mind for your investment.

FAQ

Q1: How can I confirm this 324-4131 sensor will fit my Caterpillar 320D engine?

To confirm fitment, please locate the part number on your existing sensor. If it reads 324-4131, this is a direct replacement. Additionally, verify the sensor’s thread size, connector shape, and overall length against the specifications listed above. If your engine is a 320C or 320D model, this sensor is the correct component for the standard engine configuration.

Q2: What are the common symptoms of a failing revolution speed sensor on a 320C excavator?

A failing sensor can cause several operational issues. Common symptoms include: the engine cranking but not starting, rough idling or stalling, a sudden loss of power under load, the check engine light illuminating, and erratic or non-functional tachometer readings. If you experience these issues, diagnosing and replacing the speed sensor is a crucial first step.

Q3: What is the typical installation process and maintenance for this sensor?

Installation is typically straightforward. First, disconnect the battery. Then, locate the sensor on the flywheel housing or engine block. Unplug the electrical connector, remove the retaining bolt, and pull out the old sensor. Clean the mounting hole, apply a small amount of anti-seize compound to the new sensor’s body (if recommended), install it, and tighten the bolt to the manufacturer’s specified torque. Reconnect the connector and battery. No routine maintenance is required, but keeping the connector free of dirt and moisture will ensure a long service life.