
Specifications
M12×1.5 to 1/8" NPT Oil Pressure Tee Adapter
Stainless steel tee adapter that lets you add an aftermarket oil pressure gauge or sender to your engine without losing the factory oil pressure switch. Threads inline between the OE switch and the engine block — your dash warning light keeps working, and you get a 1/8" NPT port on the side for the gauge sender.
Commonly used on Toyota (1JZ-GTE, 2JZ-GTE, 4A-GE, 3S-GTE, 1UZ-FE), Nissan (RB, SR, VG, VQ, KA, CA), Mazda (13B, 20B, BP), Subaru EJ, Honda K-series, GM LS, and many Holden / Ford applications using the M12×1.5 oil pressure switch fitting.
Material: Stainless steel construction, machined and pressure tested. Won't gall like brass adapters and resists corrosion from oil exposure.
Specifications:
- Engine block side: M12×1.5 male
- Pressure switch side: M12×1.5 female
- Gauge / sender side: 1/8" NPT female
- Body length: 38mm
- Wrench flats: 19mm
Vehicle fitment includes (but not limited to):
- Toyota 1JZ-GTE, 2JZ-GTE, 1UZ-FE, 4A-GE, 3S-GTE
- Nissan RB20DET, RB25DET, RB26DETT, SR20DET, VG30DETT, VQ35DE
- Mazda 13B, 20B, BP (RX-7, MX-5)
- Subaru EJ20, EJ25
- Honda K20, K24, B-series
- GM LS-series, Holden V8 / V6
- Any engine with an M12×1.5 oil pressure switch port
Ideal for: aftermarket oil pressure gauge installations, ECU pressure monitoring, dual-sender setups, and oil cooler safety circuits.
Disclaimer: Fitting identification is based on visual appearance only. We cannot guarantee this adapter will fit your specific application. Please confirm your oil pressure switch thread is M12×1.5 before purchasing.
Reviews
Shipping & Returns
Shipping
Orders ship within 48 hours of purchase from our Adelaide warehouse. Australia-wide shipping via Australia Post, with free shipping on orders over $60. Every shipment includes tracking, and you'll receive the details by email as soon as your order leaves us.
Returns
We offer a 30-day money-back guarantee on any product that arrives in good condition and hasn't been damaged through installation or use. Return shipping is the customer's responsibility, and once we receive the item we'll process your refund within 3 business days to your original payment method.
Payment Methods
We accept Visa, Mastercard, American Express, Apple Pay, Google Pay, Shop Pay, and PayPal.



