The Denso 168000-8050 cooling fan motor is the original-equipment component fitted to the eighth-generation Honda Civic, a model produced between 2006 and 2012. Precise part matching is essential in cooling system maintenance, and the unit is specified primarily for front-wheel-drive variants powered by the 1.8-litre R18A2 petrol engine. The following reference outlines its technical specifications, fitment limits and the symptoms that indicate replacement is required.
Core specifications and vehicle fitment
The 168000-8050 is designed for the eighth-generation Civic range, sold under the FD, FA, FN and FK chassis codes. Because these vehicles use a centrally mounted single-fan assembly, the part is not divided into left-hand or right-hand versions, which simplifies both selection and installation.
Denso, a major global supplier of automotive components, produces the motor as a direct replacement for the original factory unit. The table below summarises the principal specifications.
| Parameter | Technical detail |
|---|---|
| Part number | Denso 168000-8050 |
| Vehicle application | Honda Civic, eighth generation (FD, FA, FN, FK) |
| Engine compatibility | 1.8L R18A2 petrol engine |
| Production years | 2006 – 2012 |
| Fan layout | Central single-fan unit |
Fitment caveats and compatibility limits
Although the 168000-8050 is widely applicable across the model range, several conditions should be verified before purchase.
- Air-conditioning configuration: some 1.8-litre Civics equipped with air conditioning may use a different fan motor part number. The physical part label on the vehicle should be checked before ordering.
- Coding requirements: the component requires no electronic coding and is unaffected by keyless entry and start systems or by cosmetic trim suffixes.
- Verification method: because a single part number can span multiple vehicle applications, the most reliable check is a direct comparison with the OEM number printed on the original unit.
Mismatches most often arise when a vehicle has been assembled with a different cooling pack from the factory, making a visual inspection of the removed component the definitive test.
Fault diagnosis and replacement triggers
A failing cooling fan motor typically produces recognisable warning signs. The following conditions warrant an inspection of the fan assembly.
- Abnormal temperature: the engine coolant gauge climbs above normal during traffic congestion or prolonged idling.
- Fan failure to start: the cooling fan does not engage automatically once the engine reaches operating temperature.
- Abnormal noise: the fan assembly emits audible wear sounds, clicking or rattling vibration.
- Continuous running: the fan keeps running even when the engine is cold.
- Dashboard warning: the coolant temperature warning lamp remains illuminated.
- Physical damage: visible deformation or breakage of the fan blades or motor housing.
Any of these symptoms should be treated as a prompt for diagnostic testing rather than a definitive confirmation of motor failure, since wiring faults and relay problems can produce similar behaviour.
Frequently Asked Questions
