REV COUNTER Tachometer - 3¼” (80mm) dia 10,000rpm suit 1-12 cyl and Diesel eng
3¼” (80mm) O/D. This elegant Rev Counter. up to 10,000rpm. would suit. High Revving Race Engine. ~10,000rpm ~. Wired for Negative Earth Vehicles ONLY. Negative Earth Battery Cable must be.