Marsflex TPMS Tyre Pressure Sensors for Toyota Camry RAV4 — 315MHz 4-Pack, Pre-Programmed Long-Life Battery

Marsflex 42607-33021 TPMS sensors are a four-piece replacement set designed to restore tire-pressure monitoring capability on many Toyota, Lexus and Scion vehicles that use 315MHz valve-mounted sensors.

These aftermarket sensors provide a cost-effective route to replace failed or aging original equipment (OE) TPMS units. Each sensor is pre-programmed to match the common ID formats used by Toyota-family vehicles, includes a long-life internal battery, and is built to meet the same fit-and-function expectations as the factory parts. Note that while the units arrive pre-programmed, they still require a vehicle relearn or activation procedure after installation to register with the car’s onboard system.

Which vehicles will these sensors work with?

These Marsflex sensors target a broad list of Toyota, Lexus, Scion and selected Pontiac models that originally shipped with 315MHz tire-pressure sensors. Compatibility covers many model years for popular lines, but always confirm fitment with your vehicle’s specifics before purchasing.

• Compatible Toyota models include Camry, RAV4, Tacoma, Prius, Highlander, 4Runner, Avalon, Corolla, FJ Cruiser, Land Cruiser, Matrix, Solara, Venza, Yaris and select EV variants.
• Lexus support spans CT, ES, GS, GX, IS, LFA, LS, LX, RX and SC model ranges across applicable years.
• Scion models covered include iQ, tC, xB and xD; Pontiac Vibe is also listed.

Do these sensors come ready to use right out of the box?

Each Marsflex TPMS unit is pre-programmed at the factory to a common identification scheme, which speeds installation. However, pre-programming does not replace the vehicle-side pairing step; the car must recognize each sensor through a relearn or activation routine.

• Pre-programmed IDs reduce the chance of mismatched sensor tuning.
• A professional diagnostic scanner or TPMS activation tool is normally required for the relearn step.
• Some dealers or independent shops can perform the relearn if you don’t have equipment.

What quality and durability features do these Marsflex sensors offer?

Marsflex manufactures these TPMS sensors as new units with an internal battery sized for long service life and housings built to withstand normal road conditions. Production testing targets reliability comparable to the OE components they replace.

• Internal battery designed for up to eight years of typical use.
• Manufactured and tested to ensure reliable signal and seal integrity.
• Direct-fit design to replace OE part numbers such as PMV-107J, 42607-06011 and 42607-33021.

How do I know these sensors will match my car’s OEM part numbers?

Marsflex lists the compatible OE numbers and recommends confirming compatibility through the sales platform’s vehicle fitment tool before ordering. Matching the OE reference and model-year range is the best way to avoid a misfit.

• Replaces common OE numbers including 42607-33021 and related references.
• Check your vehicle’s parts sticker or dealer records if you’re unsure about the OE number.
• Use online fitment confirmation (for example Amazon Confirmed Fit) to verify before purchase.

Who this is for: Drivers and technicians who need a reliable, budget-friendly replacement for failed TPMS sensors on Toyota-family vehicles. These four-pack sensors suit owners of mid-2000s to mid-2010s Toyota, Lexus and Scion models who want new sensors with long battery life and OE-compatible fit. Ideal for DIY installers who have access to a TPMS relearn tool or for shoppers who will have a shop perform the final activation.