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JDM History

EK4

Honda Civic SiR EK import check

EK4 is the factory model code for the Honda Civic SiR EK, built for the Japanese market from 1995 to 2000. Every genuine car has a chassis (frame) number that starts with EK4-. That number is the one thing that links its Japanese history to its UK records.

EK4 at a glance

Model code
EK4
Make
Honda
Model
Civic SiR (EK)
Body
3-door hatchback
Built
1995 to 2000
Engine
B16A (1595 cc naturally aspirated petrol)
Drivetrain
FWD
Japanese trims
SiR, SiR II
Chassis number format
EK4-nnnnnn

From our own model library. UK records sometimes drop the hyphen or the leading zeros of the serial; our check allows for that.

Is it a genuine EK4?

EK4 is the Civic SiR. A car advertised as an EK9 Type R with an EK4 chassis is a lookalike, however good the body kit.

Known problems to check on a EK4

  • Rust in the rear arches
  • Often modified or converted to Type R styling

These are common issues for the model, not facts about any particular car. Ask the seller about each one.

Kilometres, miles and the first UK MOT

A EK4 sold new in Japan has a speedometer in kilometres. When it is imported, the speedometer is either converted to miles or left in km, and the first UK MOT should record whichever the dial shows. Mistakes here are common, and they’re where mileage problems hide.

We put the Japanese auction mileage and every UK MOT reading on one timeline and check the crossing: whether the readings agree after converting, whether the km figure was written down as miles, and whether the first UK reading is lower than the car had already done in Japan. See an illustrative example.

Questions

What is the chassis code for the Honda Civic SiR EK?

EK4. A Japanese-market Honda Civic SiR EK has a frame number that starts with EK4, then a hyphen and a serial number. You’ll find it on the V5C and on a plate in the engine bay.

Which years was the EK4 built?

From 1995 to 2000, with the B16A (1595 cc naturally aspirated petrol) engine and FWD layout.

What should I check when buying a EK4?

Rust in the rear arches. Often modified or converted to Type R styling. Also check that the Japanese auction mileage lines up with the first UK MOT, because km and miles are easily mixed up.

Other model guides