Factory TPMS Sensor Replacement: OEM vs Aftermarket Options
When factory-installed TPMS sensors reach the end of their battery life, people are suddenly faced with a decision - do I replace them with original OEM sensors or is an aftermarket option just as good? Most factory installed TPMS sensors are internal units with non-replaceable batteries hence a full sensor replacement is usually unavoidable once the battery dies. Choosing which sensor to install can affect everything from cost and compatibility to long-term reliability and ongoing maintenance.
In this article, we’ll compare sticking with OEM replacements vs going with aftermarket alternatives. Whether you’re looking to save money, improve performance or simply understand your options, this guide will help you make an informed choice.
When making the decision, it’s important to note that aftermarket TPMS systems give you a choice between internal and external sensors whereas factory installed TPMS sensors are usually internal only.
Cost: OEM vs Aftermarket TPMS Sensors
One of the biggest factors drivers consider when replacing factory TPMS sensors is cost - and the difference can be significant.
OEM TPMS sensors are typically the most expensive option. Because they’re branded to the vehicle manufacturer, you’re often paying a premium for the name, even though the underlying technology is similar across many brands. Depending on the make and model, OEM sensors can cost two to three times more than quality aftermarket versions. This price can increase further once dealership labour is added.
In contrast, aftermarket TPMS sensors are designed to offer the same performance and sometimes even better quality control at a more affordable price. Many are manufactured by companies that specialise in automotive safety technology - meaning you’re getting a specialist instead of a generalist commonly found among carmakers.
While cost shouldn’t be the only deciding factor, it’s often the first reason drivers explore alternatives to OEM sensors. And with modern aftermarket options offering excellent reliability and performance, it’s a choice that can deliver solid value with no compromise to safety.
Quality: How OEM and Aftermarket Sensors Compare
When replacing TPMS sensors, quality is just as important as cost - after all, these devices play a critical role in vehicle safety. While many drivers assume OEM sensors are automatically superior, the reality is more nuanced.
OEM TPMS sensors are built to meet the vehicle manufacturer’s specifications, ensuring reliable performance and compatibility. Because they are designed specifically for your make and model, they generally integrate smoothly with the vehicle’s electronics. However, OEM quality can still vary between brands and some OEMs don’t actually produce the sensors themselves.
On the other hand, aftermarket TPMS sensors have consistent quality across all sensors. Reputable brands follow strict manufacturing standards and undergo rigorous testing for durability, pressure accuracy and environmental resistance including vibration, heat and moisture. Some even exceed OEM standards in areas like battery life or signal strength. While aftermarket TPMS systems can’t easily integrate with your vehicle's electronics, they come with versatile monitors that can be mounted anywhere on the dashboard. Since these monitors are also portable, it makes it very easy to relocate if needed and is also much easier to resolve issues when needed.
As long as you choose a trusted aftermarket brand, you can expect equal or better quality compared to OEM without the inflated price tag.
Ease and Simplicity of Replacement
If you’re going with internal TPMS sensors as the replacement, the installation cost won’t be much higher since it’s quite standard across the industry. Installers will remove your tyre, gain access to the rim, take out the existing sensors, add in the new sensor and put everything back on. They’ll have a diagnostic tool to connect it with your cars. Minus the diagnostics, the process is similar to aftermarket sensors.
However, external TPMS sensors are cheaper and are designed to be installed DIY. All you have to do is screw off your tyre's valve cap and screw the sensor in its place. The external sensor in addition to monitoring pressure also doubles as the valve cap. Since external sensors typically come with replaceable batteries, this saves cost both in terms of the sensor (batteries are much cheaper) and labour installation cost.
When factory-installed TPMS sensors run out of battery, drivers have two main choices: stick with OEM replacements or explore high-quality aftermarket options. While OEM sensors offer guaranteed compatibility, aftermarket sensors often provide excellent reliability and choice between internal and external sensors. By understanding the differences in cost, quality and ease of replacement, you can make a choice to keep your tyres monitored safely while minimizing hassle.
