Heavy Duty Alternator

Some of our newer all-makes starter models have larger mounting holes—this makes them more versatile as they are able to fit engines with either size bolt. The mounting holes on newer models are five-eighths of an inch. That’s slightly larger in diameter than the nine-sixteenths of an inch on the older models. That difference, though, doesn’t limit if and where you can use the starter. The solution to accommodate the larger holes is quite simple and inexpensive. All you need are flat washers. We recommend a grade 5 or better washer for each of the mounting holes. This flat washer accommodates the change in bolt hole size without needing anything more.

If you service newer trucks, you may have come across ones equipped with a dual input IMS starter. It is important to be aware of it so you can understand how it’s different so you can service it correctly. The dual input IMS starter has two wiring connection inputs, rather than one. These inputs provide both power (+12V) and ground. Together, they give the vehicle control over the power flowing in and out of the IMS when it is energized. This Tech Tip video reviews the differences between a dual input and single input IMS starter.

When there are starter issues, you may think about doing a current draw test to pinpoint the issue. Yet, on a class 8 truck, a current draw test may not reveal what you need to know to fix your cranking problem. Plus, on these vehicles, a current draw test is more involved and time-intensive. And perhaps most frustrating—you often don’t get an accurate reading. That’s why the BorgWarner technical team recommends another diagnostic route to identify the issue and fix the cranking problem.

Measuring the current draw is the best way to ensure the alternator has sufficient output for all of the vehicle’s electrical demands. This video walks you through the steps to measure the current draw for a school bus.

The DuroSpeed™ K32 Fan Drive is becoming the go-to fan drive for vocational and off-highway truck applications. Designed for harsh vocational applications, DuroSpeed provides reliable performance by having a higher disengaged speed to satisfy cooling demands. In this Tech Tip video, we explain how you can easily convert any BorgWarner K30 or K32 on/off fan drive to a DuroSpeed fan Drive.

When managing a fleet, the goal is always to get the most out of your equipment. We’ve got an innovative way for you to do just that: oversizing the alternator. Oversizing an alternator is a proven strategy that benefits you in three ways: 1. Fuel Savings 2. Longer Alternator Life 3. Better Battery life In this Tech Tip video, we explore these benefits.

Cleaning off-highway equipment is a regular part of maintaining it. But did you know that if you are pressure washing, steam cleaning or using chemical degreasers, you could end up with a problem far worse than dust and dirt if you don’t clean it properly? That problem is corrosion of the starter or alternator. In this Tech Tip, we discuss how to avoid that problem and provide suggestions for how to properly clean and store your equipment.

The diagnostic procedure of a starting system equipped with a Smart IMS is similar to any diagnostic procedure. It’s important to note that some of the Smart IMS features could be misdiagnosed as a starting problem. These features actually help protect the starting system.

With its many advantages, the Smart IMS is being adopted by more and more fleets. This video explains the simple steps to follow when installing a Smart IMS.