Speedometer Sending Unit (Transducer). FITS 1982-1987 XJ6 from VIN 331346 on and 1981-1984 XJS MODELS up to VIN 113536 with an Electronic Speedo. Internal diameter of nut is 18mm If your speedometer works intermittently, then this part is broken. Replaces DAC2874 (DAC4570)
