78410-S04-901 Speed Sensor | Honda Civic Manual Transmission

78410-S04-901 Speed Sensor – Manual Transmission Vehicle Speed Sensor for Honda Civic & Civic del Sol

Dhs. 119.17

78410-S04-901 Speed Sensor for Honda Civic Manual Transmission

This 78410-S04-901 speed sensor is a replacement vehicle speed sensor for the manual transmission of the Honda Civic and Civic del Sol. The supplier lists it for the 1996–2000 Honda Civic, and it cross-references to 78410S04901, 5S4731 and 163-793. Easy Life Markets sells it as a single sensor for owners and workshops fixing speedometer and speed signal problems.

The vehicle speed sensor (VSS) sits on the transmission and is driven by a gear inside the gearbox. It sends a signal that the engine computer and the speedometer use to calculate road speed. When it fails, the speedometer may stop working or jump around, and the engine computer may store a speed sensor fault code. You can read more about how speedometers and speed signals work.

What Is Included

1 x manual transmission speed sensor

As shown in the product photos, the sensor has a drive gear on one end, a mounting flange, and an electrical connector.

Specifications

Product type: Manual transmission vehicle speed sensor
OE reference number: 78410-S04-901 (78410S04901)
Interchange numbers: 5S4731, 163-793
Supplier part number: BACB32-772001
Listed vehicle: Honda Civic 1996–2000 (manual transmission), Civic del Sol
Brand: Unbranded aftermarket
Condition: New
Quantity: 1 sensor
SKU: CJQT272700901AZ

Compatibility

The supplier lists this sensor for the 1996–2000 Honda Civic with a manual transmission, and the title also names the Civic del Sol. Automatic transmission versions use a different sensor. Please check the part number on your old sensor, or look up your car in a Honda parts catalogue using your VIN, before ordering. If you are not sure, send us your VIN and we will help you check.

Signs of a Failing Speed Sensor

Speedometer not working, or needle jumping
Check engine light with a vehicle speed sensor fault code
Odometer not recording distance
Rough idle or stalling when coming to a stop on some models
Oil leaking from around the sensor on the gearbox

A broken speedometer can also be caused by wiring faults, a damaged connector or a problem in the instrument cluster. Check the connector and wiring before replacing the sensor.

Installation Tips

Disconnect the battery and locate the sensor on the top of the transmission.
Unplug the connector and remove the retaining bolt.
Pull the old sensor out, taking care not to drop anything into the gearbox.
Lightly oil the O-ring of the new sensor, if fitted, and push it into place, making sure the drive gear engages.
Refit the bolt, reconnect the plug and check the speedometer on a test drive.

This is usually a straightforward job, though access varies. If the sensor is hard to reach, a mechanic can fit it quickly.

Why a Working Speed Sensor Matters

The speed signal is used for more than the speedometer. On many cars it also feeds the engine computer, which uses road speed for idle control and other functions. A faulty sensor can cause an inaccurate odometer, fault codes and, on some models, drivability problems. Replacing a failed sensor restores an accurate signal.

Checking the Drive Gear

When you remove the old sensor, look at its drive gear. Worn or broken gear teeth are a common cause of a dead speedometer. If the gear on the old sensor is damaged, also check the matching gear inside the transmission if you can see it, since a damaged internal gear can quickly damage the new sensor too.

Diagnosing a Speed Signal Problem

If the speedometer has stopped working, check the fuse for the gauges first, then read any fault codes stored by the engine computer. With the sensor unplugged, you can check the wiring for power and ground as described in the service information. If the wiring is good and the fault remains, a failed sensor is the most likely cause. On older cars, a corroded connector is also common, so clean the terminals when you fit the new sensor.

Who This Sensor Is For

This sensor suits owners of 1996–2000 Honda Civic models with a manual gearbox, Civic del Sol owners, and independent workshops that work on older Honda cars.

Common Questions

Does it fit an automatic Civic? No. The supplier lists it for manual transmission models.

Is this a genuine Honda part? No. It is an unbranded aftermarket replacement sold under the Honda reference number.

Buy the 78410-S04-901 Speed Sensor at Easy Life Markets

You can order this speed sensor right here. The current price and availability are shown on this page. Please read our return and refund policy before buying.