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4L/V8 1989 Chevrolet V3500 7
7L/V8 2004 - 2005 Dodge Ram 3500 5
Oldsmobile Delmont 88 (1967)
5 V8 1967 Pontiac Firebird 326/5
Sterling Truck AT9500 (2002-2007)
tachometer-filter-sn20 dinan 4L/V8 1989 Chevrolet V3500 7Overview: Classic Instruments Tachometer Filter Tachometer Filter The SN20 is a low pass filter. This filter allows signals of valid tachometer frequencies to pass through to the gauge while blocking high frequency interference. This filter would be helpful if you have interference on the tachometer's signal which is causing erratic behavior on your tachometer. Specs: Application Universal Bezel Included No Brand Classic Instruments Emission Code 6
