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Caterpillar Sensor G-SPD : OEM 1918303

CATERPILLAR SENSOR G-SPD : OEM 1918303

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$99.00

AVAILABILITY IN STOCK
OEM NUMBER1918303
PART TYPESensor G-SPD
BRANDTamerx Diesel Products
ENGINE MAKECaterpillar
ENGINE TYPE
YEAR
PART NUMBER1918303TX

PRODUCT DESCRIPTION

This is a New, Tamerx Sensor G-SPD, Tamerx part number 1918303TX ( OEM Part Number 1918303 ). This part is primarily made for a Caterpillar , and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEM1918303
Additional OEM1918303

ADDITIONAL DETAILS

CONDITIONNew
UPC / Barcode
WEIGHT1.00 LBS

SHIPPING OPTIONS

Ship Weight : 1.00 LBS
UPS Ground, 2nd Day Air, Next Day Air

SHIPPING POLICY

Tamerx Diesel Products ships via UPS Ground. Next day air shipping can be arranged for a reasonable price of anywhere from $50.00 - $100.00 depending on the weight of the product and your location. We will do everything we can to make sure that you get the service you need. We understand how important it is to receive your order as quickly as possible.
In most cases Tamerx Diesel Products only needs one address, as long as your product is shipping to the same location as your billing information. In order to eliminate credit card fraud, your billing information must match the credit card you provide.

The terms, conditions, and details of our warranty vary from product to product. Specific warranty details can be found below.

Tamerx Diesel Products provides a replacement warranty on all of our parts. The duration and mileage limitations of the warranty vary by product and are specified on the product's detail page/item listing.

Please note that the warranty covers replacement of the part and the cost of shipping the replacement part to you only. It does not cover any shop, labor, towing, or any similar or related costs. This is not a "money back guarantee".

If you experience a problem with your part or it is not functioning properly, the correct warranty procedure is to call us at (510) 257-1777 (8:00 AM - 5:00 PM ET Monday through Friday). Be sure to have your order number and/or other relevant order information ready so we can easily locate your order and resolve your issue as quickly as possible. From that point, we will review with you any troubleshooting steps that may need to be taken and other areas or systems that can be checked to rule out external problems contributing to your part's issue. If a replacement is determined to be necessary, we will then arrange for your replacement part to ship out ASAP and issue any necessary return shipping labels and/or documents.

As is the case for the majority of the diesel products sold on Tamerx Diesel Products, your part's warranty is active as soon as you install it. In some other cases, warranty activation is contingent upon you sending us your core (i.e., your old part). Tamerx Diesel Products will provide you a return shipping label for parts that have a warranty with a core return condition. When we have received your core return, the part's warranty coverage begins. We reserve the right to void the product warranty if your core is not received within the allotted time, or if it isn't received at all. If the warranty for the diesel part you are purchasing has a core return requirement, it will be clearly noted on the product detail page/item listing.

What is a Core Charge?

A core charge (also called "core deposit") is similar to the deposit you might pay for a can or bottle of soda and is a standard requirement in the auto parts industry. For example, in many states, to promote recycling, you pay a deposit when you purchase a can of soda and receive your deposit back when you return the empty can. Many automotive parts have a core charge, or core price, that works in essentially the same way as a soda can deposit.

30 Day Core Charge Hold

You authorize Tamerx Diesel Products, to hold your credit card for the specified core charge amount and that you agree to return your core with 30 days of receiving the purchased part. When we have received your core return, the hold is released and the core charge payment is canceled.

"This Product Doesn't Have a Core"


Ensure precise engine performance with this OEM 1918303 G-SPD sensor for Caterpillar machines. Designed to deliver accurate speed and position readings, it supports reliable diagnostics and optimized engine management. With its direct-fit construction and durable build, it offers long-lasting performance in demanding heavy-duty environments.

PEOPLE ALSO ASKS | BLOG(S)

The sensor responsible for speed and rotation data is a critical part of any heavy-duty vehicle’s monitoring system — and the Caterpillar Sensor G-SPD (OEM 1918303) is designed to deliver accurate readings for systems relying on speed or rotation measurements. Choosing the correct, OEM-grade sensor ensures that instrumentation, diagnostics, and engine control systems receive the precise data needed to maintain safe, efficient operation.

This sensor plays a vital role in ensuring accurate operational feedback — here’s why it’s important:

  • Accurate Speed and Rotation Detection – The G-SPD sensor measures rotation or speed parameters correctly, enabling proper system monitoring and control.

  • Supports System Diagnostics and Safety – Reliable sensor data helps ensure that on-board monitoring systems can detect irregularities, trigger alerts, or adjust engine behavior as needed.

  • Ensures Proper Machine Operation – A functioning sensor helps maintain consistent performance and prevents issues that may arise from faulty speed or motion readings.

  • OEM-Level Quality and Specifications – As OEM 1918303, this sensor meets original manufacturer standards for fit, durability, and compatibility, ensuring seamless replacement and long-term reliability.

  • Prevents Unexpected Downtime or Malfunctions – Replacing a damaged or failed G-SPD sensor helps maintain system integrity and avoid unexpected failures or inaccurate readings that could lead to larger mechanical issues.

Over time, sensors like the G-SPD can deteriorate or fail, which may lead to incorrect readings, system errors, or impaired performance. Installing the Caterpillar Sensor G-SPD (OEM 1918303) helps ensure that your machinery or vehicle continues to operate with accurate data, dependable diagnostics, and stable performance — making it a crucial component for those who depend on reliable, safe operation.

The Sensor G-SPD is responsible for detecting and reporting vehicle or gear speed to control modules within the engine or transmission system. When this sensor begins to fail, the vehicle may experience performance issues, inaccurate readings, or system faults. Identifying the symptoms early helps prevent further damage and ensures smooth, reliable operation.

Common Symptoms of a Failing Sensor G-SPD

  • Erratic or Incorrect Speed Readings
    The speedometer may fluctuate, drop to zero unexpectedly, or show inaccurate speed due to faulty sensor output.

  • Transmission Shifting Issues
    Because the Sensor G-SPD helps manage shift timing, failure can lead to harsh shifts, delayed shifting, or unpredictable gear changes.

  • Warning Lights on the Dashboard
    A failing sensor can trigger the check engine light, ABS light, or traction control warning, depending on the vehicle system.

  • Cruise Control Malfunctions
    Cruise control may disengage suddenly or fail to activate if the system cannot read consistent speed data.

  • Reduced Fuel Efficiency
    Incorrect speed information can disrupt engine timing or fuel delivery, leading to increased fuel consumption.

  • Traction or Stability Control Problems
    Systems relying on accurate speed data may behave unexpectedly, affecting vehicle stability and traction management.

A failing Sensor G-SPD can create noticeable performance and drivability issues, from inaccurate speed readings to shifting problems and warning lights. Addressing these symptoms early through inspection and diagnosis helps maintain vehicle reliability and ensures the sensor communicates correctly with essential control s

Replacement is generally straightforward if you can access the sensor location — involves removing the old sensor, installing the new one, and reconnecting wiring. Basic mechanical skill is typically sufficient.

Often yes — you may need to clear fault codes and allow the control system or ECU to relearn sensor data so that speed readings become correct again.

Yes — if the sensor plays a role in engine or transmission timing or fuel management (based on speed data), faulty readings can lead to inefficient operation, poor performance, or reduced fuel economy.

Yes — harsh conditions like high temperatures, vibration, moisture, or contamination over time can degrade sensor performance or cause failure.

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