MSD Ignition 5171 - MSD Ignition Advanced Power System Alternators

Don't let the billet housing fool you as there's much more beneath this great looking housing. MSD engineers have spent thousands of hours testing different internal components, materials and windings. A special rectifier with 50 amp diodes improves control and reliability while a new surface mount regulator isolates and protects from high voltage spikes. Even the bearings were hand picked to withstand heavy axial loads and high rpm. Not only does the precision machined housing provide cool looks and great strength, but it also delivers a new universal mounting design called Slide-Loc. This technology allows one unit to be mounted to a variety of engines by selecting a bracket kit. The bracket installation kits are available separately for a growing number of different applications.

Features:

Dual NTN bearing arrangement is capable of enduring loads over 20,000 rpm.

MSD's revolutionary Slide-Loc assembly provides nearly universal mounting! Simply install the slide mounts into place then install the bracket kit for your application.	The Slide Loc mounts allow you to position the alternator in the best location for your application. The billet aluminum brackets produce a strong installation.	The new APS Alternator features a CNC machined billet aluminum housing that delivers great looks with precision and strength. The power producing components are just as impressive!

Buying Made Easy

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Choosing the right APS Alternator for your engine is easy! First, select an Alternator that will produce the right amount of current to meet the demands of all your vehicle's electronics. Next pick the appropriate Bracket Kit for your engine combination, then select a Pulley.

	Step 1: Select an APS Alternator Two versions of the APS Alternator are available with three different output ratings. The direct Plug-In models are made to accept many different factory connectors while the One Wire design uses a single wire connection to the battery for a simple and clean installation.
	Step 2: Select a Bracket Kit Each Bracket Kit is supplied with the necessary mounts to install your APS Alternator to your engine. The brackets are CNC machined to form a precise and strong foundation. If you are choosing a Plug-APS model, be sure to get the Bracket Kit with matching wiring harness for a direct plug-in connection. See the back page for a listing of Bracket Kits.
	Step 3: Select A Pulley Each Pulley is cut from a billet of aluminum and is supplied with a great looking MSD cap to cover the mounting nut. The Pulleys are designed to give you an approximate 3:1 ratio with a standard crankshaft pulley.