MSD 8920 Magnetic Pickup Tachometer Adapter Product Features Correct operation of voltage triggered tach Use current trigger tach in line with ignition switch Easy mounting and installation Great for a mag pickup used to trigger MSD Ignition Product Specifications Brand: MSD Item Weight: 10.6 ounces Product Dimensions: 8.1 x 6.3 x 1.7 inches California residents: Click here for Proposition 65 warning Item model number: 8920 Manufacturer Part Number: MSD-8920 OEM Part Number: 8920 Shipping Weight: 11.2 ounces Domestic Shipping: This item is available for shipping in the U.S. except for California and to select countries outside the U.S. Date First Available: February 13, 2005 Why you Should Buy from Us? Trusted Seller, Great Feedback Quick Shipping and Tracking HUGE Discounts Excellent Returns Policy The BEST Customer Service Shipping & Returns We Ship Worldwide! 14 Day Money Back Return Policy Items Ship within 24-72 Hours Shipping process begins as soon as you order. We cannot cancel orders. Our goal is FAST delivery! Product Description If, after installing an MSD Ignition control, your tachometer, fuel pump relay or electronic fuel injection (in foreign vehicles) doesn't operate correctly, your application may require a tach adapter. This is due to the trigger signal not being strong enough to trigger both the MSD and the factory's components. Each adapter is simple to wire in and will have your MSD and vehicle firing away in no time. If you are using the magnetic pick-up input (green and violet wires) to trigger your MSD Ignition, you will need the PN 8920 tach adapter. The PN 8920 will correct the operation of most voltage-triggered tachometers that do not work directly off the tach output terminal of the MSD control. This adapter should also be used on current-triggered tach (hooked in series with the ignition switch). Thank You For Your Business! Please note all electronic products are designed for U.S. electrical system. Other countries may need an adapter.