The Pertronix D41-09B Side Mount Engine Distributor improves performance and reliability of your equipment. Fits the following Wisconsin four cylinder engines: VH4D, V65D and W4-1770. -1956-present: Model VH4D (sidemount) -1967-present: Model V65D (sidemount) -1976-present: Model W4-1770 (sidemount) Dimensions: A: 7.88 B: 2.62 C: 1.06 D: - E: - Drive: Gear Rotation: CCW Replaces the following distributors: Colt FMD4C7 Wisconsin YF-10C, YF-45, YF-50, YF-50C * Durable yet lightweight housing * Integrated Ignitor Electronic technology * Superior venting system * ‘O’ ring seal prevents oil leakage * Precision engineered module switches 2 times more energy than other electronic ignition system * Timing remains constant with an amazing 1/4° accuracy all the way down to zero RPM * Effective RPM range of 0 to 6000 * Non-tracking cap and rotor

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