The Big Factor That Will Help Tesla's Model 3 Launch

By John

Tesla (NASDAQ: TSLA) is gearing up for maybe its biggest moment yet: the start of production of its first true mass-market model, the Model 3.

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It's a moment that is fraught with challenges. The Model 3 is all-new and different from earlier Teslas, and it's going to be built on an all-new assembly line that incorporates much more automation than anything Tesla has tried to date.

A lot rides on Tesla's ability to deliver high-quality Model 3s, and there are a lot of things that could go wrong. But as CEO Elon Musk explained during Tesla's earnings call last week, Tesla has an important new factor working in its favor: its suppliers.

Tesla's upcoming Model 3 sedan, shown in concept form last year. Image source: Tesla.

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Tesla is reaping the benefits of its growth with suppliers

All automakers, big or small, are heavily dependent on suppliers. In particular, suppliers that specialize in certain types of parts -- whether circuit boards or seats -- can produce parts to a higher level of quality much less expensively than an automaker could do on its own.

Musk said that in Tesla's early days, it was hard to get the attention of the established auto-industry suppliers. Those suppliers are used to thinking in terms of production runs that will go into six or seven figures of volume -- and few in the auto industry thought Tesla's Model S would end up selling in the tens of thousands every year.

But now that Tesla has proven that it can (and will) build and sell cars in volume, the suppliers are much more interested in winning its business. Musk explained:

It should make a huge difference in some of the details of the finished product. Think of things like the fit and finish of interior panels, or the comfort of the seats, or the quality of the glass used in the windshield. These are all things that drew some criticism in the earlier Teslas, and they're all things that can be improved by having the A-list suppliers giving their best efforts.

If the Model 3's launch is smooth, suppliers will be a big reason

There's a lot -- a whole lot -- that can go wrong with Tesla's ramp-up to full production of the Model S. Some things will go wrong: A few suppliers will be late, a few early batches of parts won't fit properly, a robot or tool on Tesla's brand-new production line won't work as designed.

These things happen to all automakers. They're more likely to happen to Tesla with the Model 3, simply because this is the company's first-ever attempt at a high-volume production car.

Analysts have looked to the problem-plagued launch of Tesla's Model X for clues as to how the Model 3 launch might unfold (and have downgraded their near-term expectations accordingly). But the fact that Tesla has been able to significantly upgrade its relationships with suppliers since the X's launch might make that a misleading comparison.

Long story short: I think the Model 3 launch could go more smoothly than many expect. If so, suppliers will be a big reason why.

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John Rosevear has no position in any stocks mentioned. The Motley Fool owns shares of and recommends Tesla. The Motley Fool has a disclosure policy.