BMW Alternator Wiring Harnesses

A guide on how to install a universal wiring harness in a car. Read tips on properly wiring taillights, headlights, gauges, ignition switch, steering column and more.

In this Tech Tip, John answers a customer question about the Speedway 12 Circuit Wiring Harness.

Selecting the right battery cable wire size for automotive alternator to battery applications is crucial for optimal electrical performance and preventing potential issues. Our guide helps you choose the right wire gauge for any length of wire run.

Kevin W. walks through each step of installing a new alternator bracket on a 454 Big Block Chevy.

Read how to wire a lightning sprint engine. This detailed account of how to successfully wire an engine will ensure a smooth installation.

Speedway Motors just added some exciting new options to our line of racing harnesses.

Follow this guide on installing a Speedway Motors Billet LS Alternator Bracket. If you’re looking for a simple solution that looks good while solving positioning issues from factory brackets, then these brackets are for you.

Having a difficult time deciding which racing harness to use? With many options to consider from size to closure type, this article will walk you through how to go about choosing the perfect one for you and your race car. Safety first!

Need a little help figuring out which race harness will suit you best? Click here for some things to keep in mind!

This video is a step-by-step guide on how to properly install a wrap-around 5 point harness seat belt. Joe and Kyle also talk about the benefits of the Speedway Motors 5 point harness seat belt combo.