Mishimoto Oil Sandwich Plate Adapter - 3 x 1/8'' NPT Ports

This 3 port Sandwich Plate Adaptor from Mishimoto is designed to allow you to easily connect multi...

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Demon TweeksMishimoto Oil Sandwich Plate Adapter with 3 x 1/8" NPT Ports
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Product Information

Full details

This Mishimoto 3-Port Oil Sandwich Plate Adapter is for automotive enthusiasts and mechanics who need to easily install multiple sensors or accessories onto their engine's oil filter housing. Its key benefit is providing a clean, drill-free solution for adding an oil temperature sensor, an oil pressure sensor, and a turbo oil feed simultaneously. A potential caveat is ensuring thread compatibility for your specific vehicle's oil filter threads.

All features

Model Part NumberMMOP-TPS
BrandMishimoto

Extended Product Information

FAQs

What size are the NPT ports on this adapter?

All three ports on the Mishimoto Oil Sandwich Plate Adapter are standard 1/8" NPT (National Pipe Taper).

What thread sizes do the included adapters cover?

The adapter includes options for M20 x 1.5" and 3/4" UNF oil filter threads.

Can I install this without removing my oil filter?

No, the oil filter must be removed to install the sandwich plate onto the engine's oil filter housing stud.

Do I need to drill any holes in my engine?

No, this adapter is designed to mount directly to the engine oil filter location, eliminating the need for any drilling.

What types of sensors can I connect?

You can connect any sensors or accessories that utilize a 1/8" NPT fitting, such as oil temperature sensors, oil pressure sensors, or boost/vacuum gauges.

Will this adapter affect my oil pressure?

When installed correctly, this adapter should not negatively affect your oil pressure. It provides an additional path for oil flow to sensors, which is generally negligible in terms of overall system pressure.

How do I know which adapter to use?

You need to identify the thread size of your vehicle's oil filter housing stud. Consult your vehicle's service manual or measure your current filter's thread.

Troubleshooting

Oil Leak from Plate/Filter Area

Ensure the oil filter is properly seated and tightened against the sandwich plate. Verify the sandwich plate is securely threaded onto the engine block/adapter. Check that the included adapters are fully seated and sealed if used.

Difficulty installing sensors into NPT ports

Ensure you are using the correct 1/8" NPT fittings for the ports. Clean any debris from the ports before attempting installation. Use appropriate thread sealant (like Teflon tape or pipe dope) on sensor threads.

Incorrect thread adapter provided

Double-check your vehicle's oil filter thread specification. If the provided adapters do not match, contact Mishimoto customer support for assistance or source the correct adapter separately.

Oil filter does not seal properly

Verify that the correct adapter is installed (if applicable) and that the sandwich plate itself is not obstructing the oil filter's sealing surface. Ensure no foreign material is present on the sealing surfaces.

Pros and Cons

Pros

  • Simplifies the installation of multiple oil-related sensors.
  • Avoids the need for drilling into engine components.
  • Provides a clean and efficient mounting solution.
  • Includes adapters for broad compatibility.
  • Offers a sturdy and reliable connection point.

Cons

  • Requires careful verification of vehicle's oil filter thread size.
  • May add some bulk to the oil filter assembly.
  • Installation can be tight in some engine bays.
  • Additional fittings for NPT ports are sold separately.
  • Not compatible with all oil filter types or bypass valve designs.

Setup, Compatibility & Care

Setup:

  1. Ensure the engine is cool and the oil has been drained or adequately captured.
  2. Unscrew the existing engine oil filter.
  3. Thread the appropriate adapter (M20 x 1.5" or 3/4" UNF) onto the engine's oil filter housing stud if not already integrated into the plate.
  4. Screw the Mishimoto sandwich plate onto the adapter or directly onto the engine stud.
  5. Install the engine oil filter onto the sandwich plate's center threaded port.
  6. Connect your desired sensors or fittings to the three 1/8" NPT ports.
  7. Tighten all connections securely but do not overtighten.
  8. Refill engine oil to the correct level.

Compatibility:

  • Thread Adapters: Includes adapters for M20 x 1.5" and 3/4" UNF oil filter threads. Verify your vehicle's specific thread size before purchase.
  • NPT Ports: All three ports are standard 1/8" NPT (National Pipe Taper).

Care:

  • Inspect periodically for leaks.
  • Clean external surfaces with a mild degreaser and cloth if necessary.
  • Ensure all connected sensors and fittings are properly sealed.

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