Please verify this is a normally closed switch. On increasing pressure the switch opens and electrical continuity to ground is broken?

Yes switch is normally closed I used it to turn on oil pressure light. When motor builds pressure light turns off

What pressure is this set to?

My light comes on around 15 psi

Is the thread 1/8 inch pipe thread?

I don't know about the size but it will fit 230 chevy engine, 1965

Does this fit a 67 396 engine

As long as the 396 still has the factory threads and hole size it should fit wonderfully

Acdelco Gold D8050 89057533 Engine Oil Pressure Switch

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

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Description

🛠️ Power your engine’s pulse with precision and confidence!

COMPACT LIGHTWEIGHT DESIGN - 3.6 x 2.2 x 1.7 inches and just 1.76 ounces—easy to install without bulk.
PRESSURE SENSITIVE ACTUATION - Instantly responds to engine oil pressure changes for optimal engine protection.
ROBUST ELECTRICAL PERFORMANCE - Supports up to 20 Amps at 5 Volts for consistent, dependable operation.
PREMIUM AFTERMARKET RELIABILITY - Engineered to exceed OEM standards for flawless fit, form, and function.
DURABLE STAINLESS STEEL CONTACTS - Ensures long-lasting conductivity and resistance to wear.

The ACDelco Professional D8050 Engine Oil Pressure Switch is a premium aftermarket replacement designed to deliver reliable, precise monitoring of engine oil pressure. With a 20 Amp current rating, 5 Volt operation, and durable stainless steel contacts, it ensures optimal engine protection and seamless integration. Compact and lightweight, it meets or exceeds OEM standards for fit, form, and function, making it the trusted choice for professional-grade vehicle maintenance.

Specifications

ASIN	B000IYY11M
Actuator Type	Pressure Sensitive
Best Sellers Rank	#32,129 in Automotive ( See Top 100 in Automotive ) #7 in Automotive Replacement Oil Pressure Switches
Brand	ACDelco
Brand Name	ACDelco
Circuit Type	1-way
Color	Black
Compatible Devices	Vehicles
Connectivity Protocol	X-10
Contact Material	Stainless Steel
Contact Type	Normally Open
Control Method	Touch
Controller Type	Push Button
Current Rating	20 Amps
Customer Reviews	4.7 out of 5 stars 532 Reviews
Global Trade Identification Number	00021625984674
Included Components	ACDelco - Engine Oil Pres (B) (D8050)
International Protection Rating	IP00
Item Dimensions	3.6 x 2.2 x 1.7 inches
Item Type Name	ACDelco - Engine Oil Pres (B) (D8050)
Manufacturer	ACDelco
Model	D8050
Mounting Type	Panel Mount
Number of Items	1
Number of Positions	1
Operating Voltage	5 Volts
Operation Mode	attribute not appiicable to product
Part Number	89057533
Smart Home Compatibility	Not Smart Home Compatible
Specification Met	UL, cULus
Switch Type	Pressure Switch
UPC	021625984674
Unit Count	1 Count
Warranty Description	24 Months / Unlimited Miles on parts sold on or after 04/01/18. (Parts Only) Please see ACDelco.com for more details.

Reviews

A**R

1.06.2025

J**E

8.08.2025

P**O

2.05.2026

C**S

17.08.2025

J**Z

27.02.2026

M**E

5.08.2025

P**D

24.11.2025

S**B

29.05.2025

G**K

1.08.2024

R**P

31.08.2023

C**P

10.06.2023

J**E

2.02.2023

W**M

9.08.2022

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ACDelco Gold D8050 (89057533) Engine Oil Pressure Switch

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Description

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Common Questions