Speedometer unit speedometer Lotus Elise / Exige D121N0008F

D121N0008F is the official Lotus part number for the instrument cluster (speedometer unit) used in the Series 2 (S2) Lotus Elise and Exige (approximately 2004–2007). Specifically, this is the Shurlok manufactured unit found in Toyota-powered models before the 2008 interior facelift.

1. Compatibility & Identification

This unit is easily identified by its two main analog dials (Speedometer and Tachometer) and a central LCD screen at the bottom.

• Engine Match: Toyota 2ZZ-GE (Naturally Aspirated and Supercharged) and 1ZZ-FE engines.

• Throttle Type: Fits Mechanical Cable Throttle cars (2004–2005) and early Drive-by-Wire cars (2006–2007).

• Region: This specific suffix often refers to the MPH (Federal/UK) version. Metric (KM/H) versions typically carry a different suffix.

2. Common Failure Points

These Shurlok units are known for a few specific electronic gremlins that often make repair a better option than replacement:

• LCD “Bleeding” or Fading: The central screen can lose contrast or develop dark spots over time due to heat and UV exposure.

• Stepping Motor Failure: If your needle (speed or revs) is “jerky” or stuck, the tiny internal gears or the motor itself has likely failed.

• Internal Rattle: It is very common for the internal plastic buttons or the clear lens to vibrate or rattle against the binnacle.

3. Critical: Mileage and Coding

The mileage is stored on the instrument cluster itself, not in the ECU.

• If you buy a used D121N0008F, your car will display the mileage of the donor vehicle.

• To correct this, you must send the unit to a digital dash specialist. A Lotus dealer cannot change the mileage on a used unit using standard diagnostic tools.

4. Market Value & Availability (2026)

This part is increasingly difficult to find new. Most owners source them from specialist breakers.

Installation Tip

When removing the cluster, be extremely careful with the plastic binnacle shroud. It is held in by two small screws on the underside, but the plastic becomes very brittle with age. Over-tightening the screws during reinstallation is the #1 cause of cracked interior trim in these cars.