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Speedhut SPEEDBOX

5.0 out of 5 stars 4 Customer Reviews

Speedhut's SPEEDBOX is the ultimate solution for effortlessly upgrading your cable-driven mechanical speedometer. Supporting GPS and modern transmission signals, it
Speedhut's SPEEDBOX is the ultimate solution for effortlessly upgrading your cable-driven mechanical speedometer. Supporting GPS and modern transmission signals, it's the simplest and most versatile speedometer conversion for any vehicle. Requiring only 12-volts and ground, this unit offers a hassle-free plug-n-play solution that eliminates the need for tedious calibration or subscription services. With a drive output thread of 7/8 in.-18 and a square of 0.112 inches, the SPEEDBOX offers flexibility, and its calibration range from 170-1,650 turns per mile ensures precision for diverse speedometers. The versatile desi
Speedhut's SPEEDBOX is the ultimate solution for effortlessly upgrading your cable-driven mechanical speedometer. Supporting GPS and modern transmission signals, it's the simplest and most versatile speedometer conversion for any vehicle. Requiring only 12-volts and ground, this unit offers a hassle-free plug-n-play solution that eliminates the need for tedious calibration or subscription services. With a drive output thread of 7/8 in.-18 and a square of 0.112 inches, the SPEEDBOX offers flexibility, and its calibration range from 170-1,650 turns per mile ensures precision for diverse speedometers. The versatile design of the box can be efficiently installed in the dashboard or under the hood. Default calibrated for US speedometers at 1,000 turns per mile—the box adapts effortlessly to signals from GPS or VSS automatically calibrating with the included GPS antenna. Speedhut SPEEDBOX is available with or without the cable (please specify your needed requirements when placing order). Quick Product Overview: * Requires only 12-volts and ground * Plug-n-Play installation * Drive Output Thread is 7/8 in.-18 * Drive Output Square is 0.112 in. * Can be calibrated to 170-1,650 turns/mile * Default calibrated for US speedometers @ 1,000 turns/mile Drive your mechanical speedometer using any of the following signals: -- GPS (automatically calibrates using the included GPS antenna) -- VSS (Vehicle Speed Sensor)

Results 1 - 5 of 5

Speedometer Cable Adapters, Speedbox, GM/Ford/Chrysler, Thread-On, 7/8 in. Male Threads, Each

Part Number: SDU-A-299

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 10/20/2025

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Estimated Ship Date: Monday 10/20/2025

Speedometer Cable Adapters, Speedbox, 3 ft. Cable, GM/Ford/Chrysler, Thread-On, 5/8 in.-18 Male Threads, Each

Part Number: SDU-A-368

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/20/2025

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Estimated Ship Date: Monday 10/20/2025

Speedometer Cable Adapters, Speedbox, 3 ft. Cable, Chrysler Clip-On Cable, Each

Part Number: SDU-A-371

Not Yet Reviewed

Estimated Ship Date: Nov 4, 2025 if ordered today

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Estimated Ship Date: Nov 4, 2025 if ordered today

Speedometer Cable Adapters, Speedbox, 3 ft. Cable, Ford w/ Early Internal Thread-On Cable, 3/4 in.-20 Thread, Each

Part Number: SDU-A-372

Not Yet Reviewed

Estimated Ship Date: Nov 4, 2025 if ordered today

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Estimated Ship Date: Nov 4, 2025 if ordered today

Speedometer Cable Adapters, Speedbox, 3 ft. Cable, VW Clip-On Cable, Each

Part Number: SDU-A-373

Not Yet Reviewed

Estimated Ship Date: Nov 4, 2025 if ordered today

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Estimated Ship Date: Nov 4, 2025 if ordered today

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