MSD Low Resistance HEI Bushing #8412 6562490 Jaws locks automatically with highest

Jaws locks automatically with highest tip pressure without needing adjustments

- To Suit MERCEDES-BENZ SLK CLASS R170 1996-2004 (Front)

- Tape features metric markings only with easy to read red 100mm markings

Metal canister is filled with a premium grade oil for cooling

Angle of movement - min

MSD Low Resistance HEI Bushing #8412 6562490 Jaws locks automatically with highestThe carbon rotor button in a stock HEI distributor cap has very high resistance. When the high voltage of an MSD 6, 7, or 8 Series ignition is added, this resistance builds up heat and can actually melt the distributor cap. To solve this problem, install one of these MSD low resistance HEI bushings, which will pass the secondary voltage from the distributor cap to the rotor without the excessive heat buildup. HEI Bushing Carbon Button Low Resistance