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Vehicle Info NeededMSD IGNITIONPART NUMBER: 121-8412
HEI Low Resistance Bushing Fits 121-8365
$2522
1 left in stock
Ships on Nov 02, 2026
Lowest Price Guarantee- HEI Low Resistance Bushing
- Fits 121-8365
- Fits MSD Pro-Billet Distributor 121-8365
- Low Resistance of 1-3 Ohms.
- Solid bronze tip
- Performance upgrade from Factory unit
- The rotor bushing used in stock HEI distributor caps are made from high resistance carbon to help supress radio frequency interference. When the high voltage of an MSD ignition is added, this resistance may build up excessive heat which may damage the distributor cap and rotor. The solution to this problem is the MSD Low Resistance HEI Bushing which allows the secondary voltage to be transfered from the distributor cap to the rotor without excessive heat buildup.
Part TypeDistributor Shaft Bushing
Product LineMSD HEI Bushing
BrandMSD IGNITION
Package Height1.5
Package Width5.8
Package Length7.7
Weight0.1 PG
Part CategoryPerformance Parts
Distributor Replacement Part TypeCarbon button
QuantitySold individually
Part FitmentSemi Universal
Vendor Part Number8412
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
