Pro-Comp 3-3/8" In-Dash Tachometer 10,000 RPM Gear Oil  This smaller cap is

  This smaller cap is often used on surge tanks

Blue Sea Systems Replacement Red Key For M-Series Red Battery Cut Off Isolator Switches

Length: 1 Foot

For quick reference

Cross Reference: MRB8799160

Pro-Comp 3-3/8" In-Dash Tachometer 10,000 RPM Gear Oil  This smaller cap isAuto Meter's Pro Comp 3 3 8" in dash tachometers. Operates on most 4, 6, and 8 cylinder engines and is compatible With most points, standard, and electronic ignitions. Mounts into a 3 3 8" diameter hole. Lighting is perimeter incandescent. Auto Meter's Pro Comp 3 3 8" in dash tachometers. Operates on most 4, 6, and 8 cylinder engines and is compatible With most points, standard, and electronic ignitions. Mounts into a 3 3 8" diameter hole. Lighting is