Speed Sensor Kits

Speed Sensor Kits: measure the shaft, feed the tune

Speed sensor kits give you the hardware to read rotational or road speed and pass it back to a gauge, controller, or ECU. On a turbo, the sensor reads compressor or shaft speed so you can watch how hard the wheel is spinning and stay clear of overspeed. On a vehicle, a speed sensor feeds the signal a speedometer or module needs to work correctly. Fitting one is straightforward wiring and mounting work, but the sensor has to match the housing bore or the drive it's replacing, so buy for the exact application.

What ThreePiece stocks

This category runs 5 products across 3 brands: Garrett, BorgWarner, and TwinPower. Prices are currently $90 to $601 for what's in stock now - that's the live range, not a locked-in quote. Garrett carries the most here, with sensors like the Garrett Various Speed Sensor w/o Gauge (Pro) and the Garrett Street kit for G Series Models sitting at the top of the range. The BorgWarner EFR Speed Sensor Kit covers EFR turbo builds in the middle, and the TwinPower sensor that replaces H-D 74429-97C anchors the low end.

How to choose

Start with what the sensor connects to. The Garrett and BorgWarner kits are turbo speed sensors built around specific compressor families - the BorgWarner is EFR-specific, and the Garrett Street kit is called out for G Series. If you're running one of those turbos, match the sensor to it rather than buying on price. The TwinPower part is a direct replacement for a listed H-D number, so it's the pick when you need to swap a failed unit for the same thing. The spread between the $90 replacement and the $601 Pro sensor reflects those different jobs, not a quality ladder - buy the one that fits your setup.

What else you need with it

Sensors live in the Engine Components section, where the parts around your install also live. If you're mounting into a housing or need a bung, check Adapters (699 in stock) and Fittings (634). Turbo-adjacent builds often pull from Bearings and Oil Filters at the same time, and a fresh sensor pairs naturally with clean electrical from Batteries. If you're wiring up gauges and controllers on a bigger project, keep the section browsed for what the harness touches.

Fitment help and ordering

None of these sensors carry vehicle fitment data on the page, so confirm the application before you order - match the housing, drive, or the part number you're replacing. Call our team for fitment help at 813-535-5801 or reach us through Contact Us if you're unsure which kit suits your build. Every order ships with free shipping, and Affirm and Katapult financing is available if you want to spread the cost on the higher-end Garrett units.

Speed Sensor Kits: measure the shaft, feed the tune

Speed sensor kits give you the hardware to read rotational or road speed and pass it back to a gauge, controller, or ECU. On a turbo, the sensor reads compressor or shaft speed so you can watch how hard the wheel is spinning and stay clear of overspeed. On a vehicle, a speed sensor feeds the signal a speedometer or module needs to work correctly. Fitting one is straightforward wiring and mounting work, but the sensor has to match the housing bore or the drive it's replacing, so buy for the exact application.

What ThreePiece stocks

This category runs 5 products across 3 brands: Garrett, BorgWarner, and TwinPower. Prices are currently $90 to $601 for what's in stock now - that's the live range, not a locked-in quote. Garrett carries the most here, with sensors like the Garrett Various Speed Sensor w/o Gauge (Pro) and the Garrett Street kit for G Series Models sitting at the top of the range. The BorgWarner EFR Speed Sensor Kit covers EFR turbo builds in the middle, and the TwinPower sensor that replaces H-D 74429-97C anchors the low end.

How to choose

Start with what the sensor connects to. The Garrett and BorgWarner kits are turbo speed sensors built around specific compressor families - the BorgWarner is EFR-specific, and the Garrett Street kit is called out for G Series. If you're running one of those turbos, match the sensor to it rather than buying on price. The TwinPower part is a direct replacement for a listed H-D number, so it's the pick when you need to swap a failed unit for the same thing. The spread between the $90 replacement and the $601 Pro sensor reflects those different jobs, not a quality ladder - buy the one that fits your setup.

What else you need with it

Sensors live in the Engine Components section, where the parts around your install also live. If you're mounting into a housing or need a bung, check Adapters (699 in stock) and Fittings (634). Turbo-adjacent builds often pull from Bearings and Oil Filters at the same time, and a fresh sensor pairs naturally with clean electrical from Batteries. If you're wiring up gauges and controllers on a bigger project, keep the section browsed for what the harness touches.

Fitment help and ordering

None of these sensors carry vehicle fitment data on the page, so confirm the application before you order - match the housing, drive, or the part number you're replacing. Call our team for fitment help at 813-535-5801 or reach us through Contact Us if you're unsure which kit suits your build. Every order ships with free shipping, and Affirm and Katapult financing is available if you want to spread the cost on the higher-end Garrett units.