A TPMS (Tire Pressure Monitoring System) valve is a critical component of modern vehicles’ tire pressure monitoring systems. It is a valve stem that houses the TPMS sensor, which monitors the tire pressure and sends data to the vehicle’s onboard computer. The valve stem is designed to be replaced periodically to ensure the proper functioning of the TPMS system.
Technical Specifications of TPMS Valves
Rim Hole Size
TPMS valves are designed to fit specific rim hole sizes. For example, the Xtra Seal TPMS Snap-In Valve from O’Reilly Auto Parts fits a rim hole diameter of 0.438 inches, while the Dill Air Controls Products TPMS OEM Replacement Valve Stems are available in various sizes, including 0.453 inches, 0.473 inches, and 0.500 inches.
Length
The length of TPMS valves can vary. The Slime TPMS Snap-In Tire Valve is 1.5 inches long, while the Dill Air Controls Products TPMS OEM Replacement Valve Stems come in lengths ranging from 1.25 inches to 2.25 inches, depending on the specific model.
Material
TPMS valves can be made of various materials, such as rubber or aluminum. The RDV037 Fixed Aluminum TPMS Valve from Amazon is an example of an aluminum valve, while the Dill Air Controls Products TPMS OEM Replacement Valve Stems are available in both rubber and aluminum variants.
Thread Pitch
The thread pitch of TPMS valves can vary. The Slime TPMS Snap-In Tire Valve comes with a self-tapping screw having a 0.5mm thread pitch, while the Dill Air Controls Products TPMS OEM Replacement Valve Stems have a standard M6 x 1.0 thread pitch.
Torque Specification for a TPMS Sensor Valve
The torque specification for a TPMS sensor valve is typically provided by the manufacturer. For example, the Dill Air Controls Products TPMS OEM Replacement Valve Stems have a recommended torque specification of 4-6 Nm (3-4.5 ft-lbs). It is essential to follow the recommended torque specification to ensure proper installation and prevent damage to the valve or sensor.
Can a TPMS Sensor Valve be Torqued with the Tire On?
It is generally recommended to torque the TPMS sensor valve with the tire off to ensure proper installation and to prevent damage to the valve or sensor. However, some manufacturers may provide specific instructions for torquing the valve with the tire on. For instance, the Dill Air Controls Products TPMS OEM Replacement Valve Stems can be torqued with the tire on, but the manufacturer recommends using a torque wrench to ensure the proper torque is applied.
Do I Need a TPMS Rebuild Kit to Fix a Leaking Valve Stem?
Yes, if the valve stem is leaking, it is recommended to replace the entire valve stem assembly, which typically includes a TPMS rebuild kit. This kit usually includes the necessary components to replace the valve stem, such as the valve stem itself, O-rings, and other sealing components. Replacing the entire valve stem assembly ensures that the TPMS system functions properly and accurately monitors tire pressure.
The Dill Air Controls Products TPMS OEM Replacement Valve Stems, for example, come with a complete rebuild kit that includes the valve stem, a rubber grommet, and a metal washer. This ensures a proper seal and prevents future leaks.
Additional Resources
O’Reilly Auto Parts
O’Reilly Auto Parts provides detailed information on TPMS parts and components, including individual TPMS parts, service kits, and complete replacement TPMS sensors. Their Xtra Seal TPMS Snap-In Valve is a popular choice for many vehicle owners.
Slime
Slime offers a TPMS Snap-In Tire Valve designed to replace broken or malfunctioning snap-in TPMS tire valve stems. Their valve is 1.5 inches long and features a self-tapping screw with a 0.5mm thread pitch.
Dill Air Controls Products
Dill Air Controls Products provides a range of TPMS OEM replacement valve stems with various specifications, including rim hole compatibility and maximum cold inflation pressure. Their valves are available in both rubber and aluminum variants and come with complete rebuild kits.
References
- O’Reilly Auto Parts. (n.d.). TPMS Parts – O’Reilly Auto Parts. Retrieved from https://www.oreillyauto.com/shop/b/tire—wheel/tire-pressure-monitoring-sensors–tpms-/tpms-parts/38d94cd2a8b2
- Slime. (n.d.). TPMS Snap-In Tire Valve – Slime. Retrieved from https://slime.com/products/tpms-snap-in-tire-valve
- Amazon.com. (n.d.). Tpms Valve Stem – Amazon.com. Retrieved from https://www.amazon.com/tpms-valve-stem/s?k=tpms+valve+stem
- Dill Air Controls Products. (n.d.). TPMS OEM Replacement Valve Stems – Dill Air Controls Products. Retrieved from https://www.dillvalves.com/product_category/tpms/valve-stems/tpms-oem-replacement-valve-stems-valve-stems/
- YouTube. (2022). What are TPMS valves? – Top Tips – YouTube. Retrieved from https://www.youtube.com/watch?v=hYyc2eabACo