Marsflex TPMS Sensor 42607-33021 Compatible for Toyota and Lexus

In this review the Marsflex TPMS Sensor 42607-33021 is evaluated as a budget-friendly replacement set aimed at owners of many Toyota, Lexus, Scion and Pontiac models who need to restore tire pressure monitoring functionality. The single biggest reason to consider these sensors is value: they match common OE part numbers and use the same basic materials and process as original sensors, offering reliable pressure monitoring for routine driving when fitment is confirmed. Installers should verify compatibility and be prepared to perform a relearn after fitting.

Key Features

• Wide vehicle coverage: Compatible with a long list of Toyota, Lexus, Scion and Pontiac models so a single kit will fit many popular vehicles.
• Multiple replace part numbers: Replaces common OEM numbers such as PMV-107J and 42607-33011 which simplifies matching to an existing sensor.
• Durable construction: Made from premium plastic and metal to resist aging and abrasion for long term use under normal road conditions.
• Tested quality: Sensors are extensively tested during manufacturing to help ensure functional reliability from the first fitment.
• Service backing: Ships with a one year service period for basic after-sale assurance.

Who It's For

The Marsflex sensor set is best for DIY mechanics, independent shops, and owners of supported Toyota and Lexus models who need a cost-effective replacement for failed or missing TPMS sensors. It suits vehicles where the listed OEM part numbers match the original hardware and the owner is comfortable using a part finder and performing the standard relearn procedure.

Those who should look elsewhere include drivers who require vehicle-specific factory programming support at install or who prefer to purchase directly from a dealer for guaranteed fitment on uncommon model years; a small number of customers reported mixed programming results on certain vehicles, so verify fitment before installation.

Pros & Cons

Pros

• Good value for money compared with dealer parts while still matching common OEM numbers.
• Solid build using plastic and metal materials designed to resist wear and aging.
• Wide compatibility across Toyota, Lexus, Scion and Pontiac model ranges makes it versatile for fleet or multi-vehicle use.

Cons

• Some users reported mixed results with programming or functionality on specific years, so fitment verification and a correct relearn are essential.

Specifications

Brand	Marsflex
Part numbers replaced	PMV-107J, 42607-33011, 42607-33021, 42607-06011, 42607-0C020
Included quantity	4 pcs
Frequency	315MHz
Material	Premium plastic and metal
Service period	1 year

Our Verdict

The Marsflex TPMS Sensor 42607-33021 kit is a practical, cost-effective replacement for many Toyota and Lexus owners who confirm fitment and can perform a standard relearn. It delivers OE-style materials and wide part number coverage at a lower price than dealer units, making it a sensible buy for DIYers and independent shops, though buyers should verify compatibility for specific model years to avoid programming headaches.

Frequently Asked Questions

Will these sensors fit my Toyota?
Check the sensor against the listed replace part numbers and use a vehicle part finder or your owners manual to confirm fitment before purchase.

Do I need special tools to install?
Basic tire service tools and the vehicle TPMS relearn procedure are required; some models may need a scan tool or driving relearn to complete programming.

What warranty is included?
The sensors include a one year service period from the manufacturer for defects and basic support.