Best Oil Filter Sandwich Adapter for Sensors and Oil Coolers

#1 · Best Overall

1. Mishimoto MMOP-TPS

• Material: Aluminum
• Compatible with Vehicle Type: Universal
• Thread Size: 3 x 1/8NPT

Best for: Dual-thread sensor installations.

Why it ranks #1: Includes both M20 x 1.5 and 3/4-inch UNF-16 adapters, with three 1/8-inch NPT ports for sensors or an oil feed.

Two included adapter fittings, M20 x 1.5 and 3/4 UNF-16, give this Mishimoto plate broader thread options than a single-thread layout. Its three 1/8-inch NPT ports support sensors or an oil feed, enabling monitoring or feed routing through the oil-filter mounting point without drilling the block.

The plate mounts at the oil filter and uses that existing mounting point, avoiding the block drilling described in the listing. Three 1/8-inch NPT ports, supplied with a plug, can serve an oil temperature sensor, pressure sensor, or turbo oil feed. Including both M20 x 1.5 and 3/4 UNF-16 adapters lets the setup use either listed thread option. The 6061 aluminum body measures 2.8 by 3 by 0.8 inches.

Skip it if you need four simultaneous sensor ports; GlowShift GS-AF1 supplies four 1/8-27 NPT ports for that layout.

Consider this Mishimoto for a sensor or turbo-feed installation that benefits from three NPT ports and two included thread adapters. Its three-port layout is the boundary for buyers who need more connection points.

Listed on Amazon as: Mishimoto MMOP-TPS Oil Filter Sandwich Plate Adapter

#2 · Four-Port Sensor Plate

2. CNWZYMX Universal Plate

• Material: Aluminum

Best for: Four-port dual-thread monitoring.

Why it ranks #2: Offers four pre-installed 1/8 NPT ports and both M20x1.5 and 3/4-16 UNF fittings for monitoring-oriented installations.

Four pre-installed 1/8 NPT ports let this CNWZYMX plate connect oil temperature and pressure sensors alongside other accessories. It comes with both M20x1.5 and 3/4-16 UNF fittings, giving buyers two specified thread options at the sandwich plate between the oil filter and engine block.

Mounted between the block and filter, the plate provides a centralized interface for oil monitoring instead of placing each sensor elsewhere. Its four pre-installed 1/8 NPT ports support simultaneous connections for temperature sensors, pressure sensors, gauges, and other accessories. The included M20x1.5 and 3/4-16 UNF fittings address two listed thread styles, while the aluminum construction keeps the adapter material-specific. This combination suits setups that need several ports and either listed fitting option.

Skip it if you want four supplied flush-mount port plugs; GlowShift GS-AF2 explicitly includes four plugs with its four-port plate.

Pick this adapter for a multi-sensor layout when one of its two included thread fittings matches the intended connection. The listing does not specify port plugs, so account for that detail when planning unused openings.

Listed on Amazon as: Oil Sandwich Plate Oil Filter Adapter Universal Aluminum Black

#3 · Three-Port Cooler Plate

3. X AUTOHAUX Cooler Plate

• Material: Aluminum
• Compatible with Vehicle Type: Car
• Thread Size: 3/4-16UNF, M20x1.5

Best for: Three-port dual-thread cooler plate.

Why it ranks #3: Combines three 1/8 NPT ports with M20x1.5 and 3/4-16UNF thread options for sensor or cooler accessories.

Three 1/8 NPT ports let this X AUTOHAUX adapter route connections for sensors, oil feed, or accessories from the filter location. It lists both 3/4-16UNF and M20x1.5 threads, giving buyers two mounting-thread options in an aluminum alloy sandwich plate.

Installed at the oil-filter sandwich location, the plate supplies three 1/8 NPT ports for a gauge, oil cooling, or other accessories. Its two listed adapter thread sizes, 3/4-16UNF and M20x1.5, give the buyer alternatives for the filter connection. Aluminum alloy construction and an anodized finish are specified, with high-temperature resistance also stated. The listing describes oil-temperature reduction and improved lubricant consistency as intended benefits, rather than supplying a quantified performance result.

Skip it if you need four sensor ports; GlowShift GS-AF1 supplies four 1/8-27 NPT ports for a larger monitoring layout.

Choose this X AUTOHAUX plate for a three-port accessory layout that matches either listed thread size. Its port count is the main boundary for buyers planning more than three sensor or feed connections.

Listed on Amazon as: X AUTOHAUX Universal Car Aluminum Alloy Oil Filter Cooler Sandwich Thread Plate Adapter Oil Cooler Yellow M20x1.5 3/4-16UNF

#4 · Thermostatic Cooler

4. Setrab HyperFlow Adapter

• Compatible with Vehicle Type: Car, Truck, SUV, ATV, UTV, Lawn Mower…
• Thread Size: M22

Best for: Thermostatic cooler plumbing.

Why it ranks #4: Purpose-built for cooler plumbing, it has a self-contained thermostatic oil valve with pressure-relief function and M22 ProLine ports.

A self-contained thermostatic oil valve with pressure-relief function sets the Setrab HyperFlow apart for oil-cooler plumbing. Its M20x1.5 nipple thread and M22x1.5 ProLine ports provide defined mounting and hose connection interfaces, while the valve and flow cavities support a cooler-oriented installation.

Installed between the oil filter and its landing, this adapter provides access to an oil supply for a cooler. The self-contained thermostatic valve includes a pressure-relief function, integrating those functions in the adapter rather than requiring a separate listed valve. M22 ProLine ports work with sūsa ProLine fittings and hose ends up to -12 size. The M20x1.5 nipple thread specifies the filter-side connection, helping buyers assess both mounting and plumbing requirements.

Skip it if you need four 1/8 NPT sensor ports; CNWZYMX SW1-4K-BK lists four ports for monitoring accessories.

Choose the Setrab for a cooler-focused circuit needing a thermostatic valve, pressure relief, and ProLine plumbing. Its M22 port system and M20x1.5 nipple make thread and fitting compatibility central to the decision.

Listed on Amazon as: Setrab 19-SPT76-20-180-22 SUSA HyperFlow Sandwich Oil Filter Adapter M20x1.5 Nipple Thread, ProLine M22x1.5 Port Thread

#5

5. GlowShift M20 Adapter

• Material: Aluminum
• Compatible with Vehicle Type: Car
• Thread Size: 1/8-27 NPT

Best for: Four-sensor monitoring setups.

Why it ranks #5: The M20 x 1.5 plate provides four 1/8-27 NPT sensor ports, flush-mount plugs, and an O-ring for the listed thread application.

Four 1/8-27 NPT female ports let this GlowShift plate accept several oil sensors at the filter, enabling pressure and temperature monitoring without moving the connection point to the engine block. Its M20 x 1.5 thread specifies the filter-side connection, while flush-mount plugs close unused ports.

The aluminum plate installs between the engine block and oil filter, placing four sensor ports at the filter mounting point rather than requiring separate sensor locations. That arrangement supports combinations of oil pressure and temperature sensors, with the four included flush-mount plugs closing ports left unused. The included O-ring provides the stated sealing interface. The M20 x 1.5 thread is a specific fit detail, and the listing notes compatibility depends on the vehicle's gasket diameter.

Skip it if you need a 3/4-16 UNF thread; the matching GlowShift GS-AF2 uses that specified thread instead.

Choose this plate when an M20 x 1.5 connection and four sensor ports suit your pressure or temperature monitoring layout. Its useful flexibility still depends on the filter gasket diameter matching the application.

Listed on Amazon as: GlowShift 20mm 1.5 Oil Filter Sandwich Plate Sensor Thread Adapter

#6

6. GlowShift 3/4 UNF Adapter

• Material: Aluminum
• Compatible with Vehicle Type: Vehicle
• Thread Size: 3/4 UNF-16

Best for: Four-port 3/4-16 setups.

Why it ranks #6: Its 3/4 UNF-16 thread and four 1/8-27 NPT ports suit buyers needing multiple sensor connections on that specific filter thread.

A 3/4 UNF-16 filter thread distinguishes this GlowShift adapter, giving buyers with that specified connection a four-port mounting point for oil pressure or temperature sensors. The aluminum sandwich plate sits between the engine block and filter, and its four plugged ports accommodate a customized sensor layout.

Four female 1/8-27 NPT ports provide connection points for pressure and temperature sensors, while included flush-mount plugs close ports not used in a particular setup. The plate installs between the block and oil filter, so the sensors connect at the filter mounting location. Its O-ring supplies the listed sealing component. The 3/4 UNF-16 thread is the key application detail; the listing also cautions that gasket diameter affects compatibility.

Skip it if you need an M20 x 1.5 thread; GlowShift GS-AF1 lists that connection rather than this 3/4 UNF-16 thread.

This is a practical choice for a 3/4 UNF-16 application needing multiple oil sensor connections at the filter. Check the gasket-diameter limitation against the intended setup, since the thread alone does not establish compatibility.

Listed on Amazon as: GlowShift 3/4 unf-16 Oil Filter Sandwich Plate Sensor Thread Adapter

#7

7. Prosport M20 Plate

• Material: Aluminum
• Compatible with Vehicle Type: Various Subaru, Non-metric Honda, Mitsubishi…
• Thread Size: 20mm

Best for: Rotatable Subaru sensor plate.

Why it ranks #7: Four 1/8-inch NPT ports and 360-degree rotation help sensor placement, with listed fitment covering several named vehicle applications.

A 360-degree rotatable plate lets this Prosport adapter change port orientation after installation, helping position four 1/8-inch NPT sender connections. Its M20 x 1.5 thread and listed vehicle applications make it a targeted option for compatible Subaru and other specified vehicles.

Four 1/8-inch NPT ports provide connection points for compatible oil pressure and temperature senders, consolidating them at the filter adapter. The plate can rotate 360 degrees, allowing port positioning to suit the installation layout. Its M20 x 1.5 thread is paired with listed applications including Subaru, non-metric Honda, Mitsubishi, Acura, Hyundai, Nissan Sentra 2.5L, 350Z, Mazda RX-7 and RX-8, Porsche, and Honda S2000. Some 2006–2007 WRX TR editions may need modification.

Skip it if you have a 2006–2007 WRX TR and prefer a listed alternative to modification; the product suggests a remote oil pressure kit.

This Prosport plate fits buyers whose vehicle is among the listed applications and who value adjustable sender-port orientation. The WRX TR modification note is a specific boundary, and the M20 x 1.5 thread remains essential.

Listed on Amazon as: Prosport Oil Filter Adapter Plate M20xP1.5 Sandwich Plate

#8

8. broyear AN10 Cooler Plate

Best for: AN10 oil cooler plumbing.

Why it ranks #8: AN10 fittings and an O-ring design target cooler plumbing, while the title lists M20x1.5 and 3/4-16UNF thread options.

AN10 fittings make this broyear sandwich plate a direct choice for buyers routing oil cooler lines through an AN10 setup. Its aluminum adapter also supports oil temperature or pressure senders, enabling gauge installation without drilling the oil pan or removing stock sensors, according to the listing.

The plate combines AN10 oil cooler connections with an M20x1.5 and 3/4-16UNF thread specification, giving the buyer both cooler-plumbing and filter-thread details to plan around. An O-ring design is listed to provide a tight fit at the filter area, while the sender-adapter function supports temperature or pressure gauge installation. The listing says sensors and feed lines can be mounted without drilling the oil pan or removing stock sensors, keeping those changes at the adapter.

Skip it if you need M22 ProLine ports; SETRAB 19-SPT76-20-180-22 specifies those ports and accepts fittings up to -12 size.

This broyear plate suits an AN10 oil-cooler line setup that also needs sender access and either listed thread option. Its AN10 connection specification is the key boundary for other hose-fitting plans.

Listed on Amazon as: M20x1.5 Oil Cooler Sandwich Plate with AN10 Fittings 3/4-16UNF

#9

9. G-PLUS M20 Adapter

• Material: Aluminum
• Compatible with Vehicle Type: Universal
• Thread Size: M20

Best for: M20 AN10 cooler connections.

Why it ranks #9: This M20 x 1.5 plate provides in-and-out ports with AN10-fitting connectors, but the listing gives less sensor-port detail.

AN10-compatible in-and-out ports give this G-PLUS plate a clear role in oil-cooler plumbing, while its M20 x 1.5 thread identifies the filter-side connection. The aluminum kit mounts between the block and oil filter, linking the cooler-line interface to the filter location.

The adapter mounts between the engine block and oil filter, placing its in-and-out ports at the filter for oil-line routing. Those ports accept AN10 fittings, a useful specification for buyers planning compatible cooler plumbing. Its M20 x 1.5 thread defines the listed mounting thread, and aluminum construction provides the stated plate material. The listing includes two 3/4-inch O-rings, which are relevant when preparing the adapter's sealing components for installation.

Skip it if you need sensor-specific 1/8 NPT ports; Mishimoto MMOP-TPS lists three NPT ports for sensors or an oil feed.

Select this G-PLUS kit for an M20 x 1.5 application using AN10 cooler lines and the supplied O-rings. The listed port connection is the boundary: buyers needing NPT sensor ports should choose a sensor-port plate.

Listed on Amazon as: G-PLUS Universal Racing Sport JDM Aluminum Oil/Gauge Filter Sandwich Adapter Plate Kit M20 X 1.5 Red

#10

10. Prosport M18 Plate

• Compatible with Vehicle Type: Car
• Thread Size: 18mm

Best for: Chevy 5.7L M18 sensor mounting.

Why it ranks #10: The M18xP1.5 thread is specified for Chevy 5.7L applications, making it narrower in stated fitment than the other listed options.

An M18xP1.5 thread targets this Prosport adapter to Chevy 5.7L oil-filter applications, providing a filter-side mounting point for sensors, an oil cooler, or a relocation kit. Four 1/8-27 NPT ports extend that role to oil pressure and temperature senders.

The plate's M18xP1.5 thread is specified for Chevy 5.7L applications, making the intended engine context more focused than a general thread listing. Four 1/8-27 NPT ports provide connection points for pressure and temperature senders, while the product description also identifies oil cooler and relocation-kit uses. Its stated design emphasizes a secure fit and sealing under pressure and heat; the included rubber O-ring supports the sealing interface.

Skip it if you need an M20 x 1.5 connection for listed Subaru applications; Prosport PSOPOT-M20XP1.5 specifies that thread and vehicle list.

This Prosport adapter suits a Chevy 5.7L setup needing sender ports, oil-cooler access, or a relocation-kit connection. Its M18xP1.5 thread and stated engine focus define the application boundary.

Listed on Amazon as: Prosport Oil Filter Sandwich Plate Adapter 18mm x 1.5 Includes Four(4) 1/8-27 NPT threaded Ports to install Oil Pressure & Temperature senders, Includes 4 Plugs & Rubber O-Ring