M14 Oil Fitting Pressure Tee M14x1.5 1/8 npt Crush Washer Included

M14 x 1.5 Oil Adapter Tee with 1/8 npt port

This CNC-machined steel adapter features M14 x 1.5 threads and a 1/8" NPT side port, making it a versatile solution for a wide range of automotive, heavy-duty, and industrial applications where oil pressure ports are used.

This M14×1.5 oil adapter tee provides a versatile solution for adding or relocating oil pressure sensors, sending units, or secondary feeds on a wide variety of vehicles, heavy equipment, diesel engines, off‑road machines, and industrial applications where metric pressure ports are used.

🚗 Automotive & Performance Vehicles

Commonly found on engines that use metric sender ports, making this adapter perfect for:

BMW (multiple engines, including 3 Series E90/E92/E93, select 1 & 5 Series)

Saab (9‑3, 900)

Opel / Vauxhall (various 1.6L and 2.0L engines)

Mercedes‑Benz (older M‑series engines with metric sensor ports)

VW / Audi (specific 4‑cyl applications with M14×1.5 ports)

Even when OEM sensors use different threads, this adapter is widely used in aftermarket gauge installations.

🚛 Diesel Trucks & Heavy Equipment

Used by fleets and performance builders for sensors and telemetry on engines such as:

Truck OEM brands:

Freightliner

Kenworth

Peterbilt

Volvo Trucks

International

Mack

Diesel engine families where metric ports are found or adapted:

Cummins series (many ISB, ISL, ISX applications)

Detroit Diesel (DD13 / DD15 / DD16 - sensor port locations vary)

Caterpillar models with metric sensor bosses

PACCAR MX‑13

These applications use metric sender ports for monitoring engine pressure - or are converted by fleets and tuners to standardize on metric sensor fits.

🚜 Farm & Off‑Road / Industrial Equipment

Used in tractors, loaders, harvesters, and industrial power units where metric sensor threads or metric accessory ports are present:

Tractor & Farm Equipment Brands

Kubota (hydraulic and diesel applications)

John Deere (select models use metric senders or adaptors)

Case IH

New Holland

Massey‑Ferguson

Yanmar tractors and industrial diesel engines

These adapters are frequently used by owners and mechanics to install aftermarket pressure gauges, remote sensors, or monitoring systems.

🛠 Industrial & Hydraulic Uses

Beyond vehicles, this adapter is ideal for:

Hydraulic power units

Industrial generators

Air compressors

Marine diesel engines

Oil monitoring systems

Many heavy industrial engines use metric sender ports or are retrofitted with them for instrumentation.

Common Compatible Marine Engines:

Yanmar Marine Diesels - Especially the 3GM, 4JH, and 6LP series

Volvo Penta - Particularly engines derived from automotive platforms (D4, D6, KAD series)

Mercury Marine - In diesel and European-sourced platforms (TDI models, VM Motori-based)

Cummins MerCruiser Diesel (CMD) - Often based on automotive diesel engines that use metric sensors

Beta Marine - Based on Kubota blocks (which commonly use M14 ports)

Nanni Diesel - Also Kubota-based; known to use metric pressure ports

Perkins Marine Engines - Older models (like 4.108) may require adaptors, but M14 is common in many Perkins applications

Steyr Motors - Known for metric sender ports across many models

Westerbeke & Universal Marine - Select models with metric senders

This tee can be used when adding a secondary oil pressure gauge, sending signal to a telemetry system, or rerouting to a remote sensor block to isolate heat and vibration.

⚠️ Fitment Disclaimer

Thread compatibility varies by engine model and year. Always verify that your OEM oil pressure port is M14×1.5 before ordering.
This adapter is intended to mate with M14×1.5 female threads and provide a 1/8″ NPT branch for gauge, sensor, or feed use.
While this adapter fits many engines across multiple industries, port sizes and clearance can vary. Take note of any tight engine bays or restricted access around your oil sender.