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Dorman 645-780 Oil Pressure Switch Connector

Free shipping on orders over $29.99

$19.75

$ 9 .99 $9.99

In Stock
  • Professional appearance - this electrical pigtail is designed for a clean, professional look when installed
  • Convenient solution - this pigtail connector allows the circuit to be quickly disconnected for service or occasional use
  • Durable construction - this pigtail connector features weatherproof seals and a locking tab for a reliable connection
  • Versatile component - this connector can be used in a variety of repairs and custom installations
  • Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the Amazon Garage


Make better electrical repairs and accessory installations with this pigtail connector. Designed for a clean appearance when installed, it features weatherproof terminals and a locking tab for a reliable quick disconnect electrical connection.


Michael Pence
Reviewed in the United States on July 2, 2024
Worked great
Desert Dog 215
Reviewed in the United States on September 8, 2020
WRONG! disappointed in the quality, one terminal not seated in connector, weather seals in wire cavities were missing so it is not waterproof and will allow corrosion. I had to disassemble and remove wires and terminals then, insert the original wires with the seals into the new connector. The connector fits the OEM oil pressure sender/switch and has the main weather seal. This assembly in incomplete without the wire seals that go in the top of wire cavities, beware.
Tina Mc
Reviewed in the United States on March 3, 2020
This worked perfect for a 1995 GMC C1500. Since all the wires are black, connect the wires in the same position.
Jaime Gonzalez
Reviewed in the United States on October 8, 2016
I attempted to plug this connector into the oil pressure sensor on my car and the middle wire and female terminal popped out, breaking it in the process. Now it does not lock in place. I had to wedge a piece of plastic next to the wire to provide pressure so it will not come out. None of the terminals have an insulator on the wire side. This means water, dust, oil and any other engine compartment contaminants can go into the connector through the wire holes. What good does the insulator on the mating side of the connector do then?
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