Oil filter sandwich plates let you add sensors, monitor temperatures, or route oil to an external cooler. This guide helps buyers choose the best options for different engines and needs. The top picks cover sensor ports, compatibility, and cooling support for both everyday drivers and performance or custom builds. For each product, you’ll see who it’s best for, why it was selected, and any practical limitation to watch.
| Product | Best For | Key Benefit |
|---|---|---|
| GlowShift 20mm 1.5 | Performance drivers needing multiple sensors | Four 1/8-27 NPT ports for sensors |
| CNWZYMX Oil Sandwich Plate (Blue) | Engineers needing real-time monitoring | Four ports for simultaneous connections |
| GlowShift 3/4 UNF-16 | Budget-friendly sensor expansion | Integrated UNF thread for easy installation |
| Mishimoto MMOP-TPS | Compact, robust aluminum option | 6061 aluminum with multiple ports |
| CNWZYMX Oil Sandwich Plate (Black) | Wide compatibility with engines | Four ports; simple plug-and-play |
Note: Each option is designed to sit between the engine block and oil filter. Compatibility hinges on gasket diameter and thread fittings. If your gasket is larger than 3 inches, some models may not seal properly.
GlowShift 20mm 1.5 Oil Filter Sandwich Plate
Best for enthusiasts who want to install multiple sensors without buying separate adapters. This plate features four 1/8-27 NPT ports plus M20 x 1.5 thread compatibility, enabling oil pressure and temperature sensors to be mounted between the engine block and oil filter. The kit includes flush mount plugs and an O-Ring for a leak-free seal. Best for engines with a gasket diameter of 3 inches or less. A caution is that installation requires confirming gasket compatibility on your specific model.
CNWZYMX Oil Sandwich Plate Oil Filter Adapter Universal Aluminum Blue
Best for real-time monitoring with four ports ready for oil cooling lines or sensors. This universal blue option installs between the oil filter and engine block and includes four 1/8 NPT ports. It supports a broad range of engines through M20x1.5 and 3/4-16 UNF fittings for plug-and-play compatibility. Choose this if you want a versatile setup across many builds; caution: verify thread compatibility with your existing hardware.
GlowShift 3/4 unf-16 Oil Filter Sandwich Plate Sensor
Best for a compact, cost-conscious sensor expansion. This GlowShift plate includes four 1/8-27 NPT ports along with a 3/4 UNF-16 thread, letting you mount multiple sensors while maintaining a leak-free seal. It is ideal for engines where space is limited and gasket diameter remains under 3 inches. Limitation: may require additional adapters if your oil system uses nonstandard fittings.
Mishimoto MMOP-TPS Oil Filter Sandwich Plate Adapter
Best for a robust, mid-size plate with solid build. The Mishimoto adapter is made from 6061 aluminum and presents three 1/8″ NPT ports plus M20 x 1.5 and 3/4″ UNF 16 options for installation flexibility. It suits engines needing reliable sensor integration while maintaining a compact footprint. Better for users prioritizing a reputable aluminum block with straightforward mounting; data notes caution about fitting variations on some engine models.
CNWZYMX Oil Sandwich Plate Oil Filter Adapter Universal Aluminum Black
Best for engines requiring a broad compatibility profile and real-time monitoring. This black variant mirrors the blue model with four ports for oil cooling or sensor connections and uses M20x1.5 and 3/4-16 UNF fittings. It’s chosen for broad engine compatibility and simple plug-and-play setup. Caution: confirm the gasket diameter on your specific vehicle to ensure a proper seal.
PiKBUK Oil Filter Sandwich Plate Thermostatic Adapter for AN10 Oil Cooler
Best for cooling-focused builds that need temperature-driven oil flow. This thermostatic plate includes an 82°C thermostat to control routing between the factory circuit and an external oil cooler. It’s designed for AN10 inlets/outlets and compatible with 3/4-16 UNF and M20x1.5 center bolt applications. Choose this for performance-oriented engines; limitation: thermostat behavior depends on oil temperature and may require calibration for your setup.
Modengzhe Oil Filter Cooler Sandwich Plate
Best for those seeking a universal aluminum adapter with solid sealing features. This plate uses 3/4-16 UNF and M20x1.5 threads, with O-ring dimensions provided for a secure seal. It supports easy sensor installation and oil cooler routing. Consider this option if you need a durable, simple-to-fit plate; limitation: ensure the O-ring sizes match your specific installation to avoid leaks.
Buying Guide — Key Purchase Considerations
- Thread compatibility: Confirm M20x1.5, 3/4-16 UNF, or AN10 connections match your engine and oil cooler components.
- Number of ports: Decide how many sensors or cooling lines you need to run simultaneously (commonly 3–4 ports).
- Gasket diameter: Most plates assume a gasket diameter of 3 inches or less for a proper seal; verify your oil filter size.
- Material and build: Aluminum plates (6061) offer durability and heat resistance; ensure corrosion resistance for your environment.
- Thermostatic options: If oil cooling is a priority, thermostatic plates direct flow based on temperature.
- Installation footprint: Check plate dimensions to ensure clearance around the oil filter and surrounding components.
Frequently Asked Questions
- What is an oil filter sandwich plate used for?
It adds ports between the engine block and oil filter to monitor oil pressure/temperature or route oil to a cooler. - How many ports do these plates typically provide?
Most options offer 3–4 ports for sensors or cooling lines. - Do I need special tools to install one?
You’ll generally need standard wrenches and thread sealant; confirm thread type before installation. - Will these plates fit all engines?
Fit depends on gasket diameter and thread compatibility; check your engine’s specs and the plate’s fittings. - Are thermostatic plates better for cooling?
Thermostatic plates control oil flow based on temperature, helpful for performance or extended cooling needs. - Can these plates leak?
Proper O-Ring seating and correct torque are essential to prevent leaks; inspect seals after install.