Replace a worn or failed coolant temperature sensor on a Sniper EFI system with this direct-fit Holley replacement sensor, which comes with pre-applied thread sealant for a leak-free installation.
Specifications:
- Application: Sniper EFI (TBI) systems
- Thread: 3/8" NPT, pre-applied sealant
- Operating Range: -40°C to 135°C
- Connector: 2-pin
- Type: Replacement/service part
- Part Number: 543-120
FAQ
What is this sensor used for?
It's a replacement coolant temperature sensor for Holley Sniper EFI systems.
What is the operating temperature range?
It's rated from -40°C to 135°C.
Does it come with thread sealant?
Yes, it has pre-applied thread sealant for a leak-free installation.

