Thermostat Housing Plug and Coolant Temp Sensor Thread Pitch: Complete Size Reference
Which thread pitch does your thermostat housing plug or coolant temp sensor use? M12x1.5, 1/8 NPT, and more — a quick reference by make and platform.
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Thermostat Housing Plug and Coolant Temp Sensor Thread Pitch Explained
Coolant temp sensors on most modern engines use M12 x 1.5 metric thread, not NPT. Thermostat housing plugs are usually 1/8-27 NPT. Here’s how to identify which you have and why they’re not interchangeable.
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Clutch Slave Cylinder Bleed Screw Size: 8mm x 1.0 or 8mm x 1.25?
M8 x 1.25 is the correct thread pitch for most clutch slave cylinder bleed screws — here’s how to verify yours and find the right Earl’s Solo-Bleed.
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Clutch Slave Cylinder Bleed Screw Size: How to Find the Right Thread Pitch
M8 bleed screws come in 1.0 and 1.25 thread pitches and the wrong one will strip your bore. Here’s how to identify which your clutch slave needs and which solo bleeder to buy.
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Clutch Slave Cylinder Bleed Screw Thread Pitch: 8mm x 1.0 vs 8mm x 1.25 — How to Get It Right
Most clutch slave cylinders take an M8 x 1.25 bleed screw, but some use 1.0. Here’s how to confirm your thread pitch before ordering Earl’s solo bleeders.