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GTX Auto Parts · Turbochargers · Auto suppliers · Electrification · Thesis updated July 19, 2026

Cash turbos fund the electric bet

01 Running thesis

A cash engine with a timing gap

Garrett Motion makes the parts that help engines breathe better. Its main product is the turbocharger, a device that uses exhaust gas to push more air into an engine. That can improve power and fuel use, which matters for gasoline hybrids, trucks, and industrial engines.

The bull case is simple: the old business still makes cash, and that cash gives GTX time to build the next one. Management has won programs in E-Turbos, fuel cell compressors, and high-speed E-Powertrain parts. These are zero-emission vehicle, or ZEV, products for cars and trucks that use little or no tailpipe emissions.

The story improved in Q1 2026. Aftermarket sales rose 16%, reversing a weakness that had been hurting the case. Management also put a hard number on the data center backup power market, saying industrial turbo sales for gen sets were expected to exceed $100 million in 2025.

The bear case has not gone away. Cars and trucks are cyclical, which means sales can fall when the economy weakens. Many ZEV wins will not create large revenue for years. Finn also stays cautious on valuation, so the stock needs more proof, not just good ideas.

Apr 2026Q1 2026 eased a key bear point. Aftermarket sales rose 16%, and management also showed that data center backup power is becoming a real industrial turbo market.
Feb 2026The 2025 Form 10-K confirmed that gasoline products grew 6% for the year. That supports the view that hybrids can help offset the long-term shift away from diesel passenger cars.
Oct 2025Management said industrial turbo sales for data center gen sets were expected to exceed $100 million in 2025. That gave investors a clearer number for a non-auto growth path.
Oct 2025Q3 2025 showed strong core sales growth, led by gasoline products, but aftermarket sales were still down 1%. The bull case and bear case both had evidence.
Jul 2025GTX announced more ZEV progress, including a major E-Turbo program in Europe, a large fuel cell compressor award, and an E-Powertrain proof-of-concept award.
Jul 2025The Q2 2025 filing showed aftermarket sales down 8%. That raised the risk that the weakness was more than a short-term inventory issue.
May 2025GTX won its first series production award for high-speed E-motor technology with Hyundai. That made the ZEV plan more concrete.
May 2025Q1 2025 showed the business shifting toward gasoline hybrids while diesel passenger cars declined. The same filing also showed aftermarket weakness, keeping the thesis balanced.
02 Business model

Selling into engines, funding the pivot

GTX sells turbochargers and related systems to automakers, commercial vehicle makers, industrial engine customers, and the replacement parts market. Its costs are fairly variable, so expenses can move down when volumes fall. That helps protect cash flow better than a heavy fixed-cost model.

The company has shown it can pass through some commodity cost changes to customers. That can make reported sales move around, but it helps protect margins. In Q1 2026, net sales were $985 million, up 12% from the prior year, helped by demand across product lines and foreign exchange.

Cash is being used in three ways. GTX is investing in ZEV products, paying dividends, and buying back stock. In Q1 2026, it repurchased $87 million of common stock and paid a $16 million dividend.

The weak spot is that the funding source is still the legacy engine business. If global auto production drops hard, GTX may have to choose between investing in future products and returning cash to shareholders.

03 Product portfolio

From hybrids to data centers

Growth engine

Gasoline turbochargers

This is the largest product line. Gas sales were $443 million in Q1 2026, or 45% of sales, helped by new launches and program ramp-ups in Europe.

Steady

Diesel turbochargers

Diesel is no longer the main growth story in passenger cars, but it remains useful in light commercial vehicles, pickup trucks, and some regions. Diesel sales were $232 million in Q1 2026.

Growth engine

Commercial vehicle and industrial turbos

This line includes trucks and industrial engines. It is also where the data center backup power opportunity shows up, as gen sets use turbo technology.

Cash cow

Aftermarket parts

Aftermarket means replacement parts sold after the original vehicle or machine is built. It had been weak, but sales rose 16% in Q1 2026 on stronger commercial vehicle parts demand.

Option

E-Turbos and fuel cell compressors

These are ZEV products that help electric and hydrogen vehicles manage air flow and efficiency. GTX won a major E-Turbo program in Europe and a serial production award for a fuel cell compressor from a leading Asian OEM.

Option

High-speed E-Powertrain

This includes electric motors, inverters, and gearboxes. GTX has a Hyundai production award targeted for 2027 and a proof-of-concept award with a major European passenger vehicle OEM.

Option

E-Cooling compression

This oil-free compressor technology is being tested for cooling use cases. Management has pointed to possible demand from data centers and battery farms, but the market is still early.

04 Business segments

Q1 2026 sales mix

Gas45%growing fast
Diesel24%modest
Commercial Vehicles / Industrial18%growing fast
Aftermarket12%growing fast
Other1%flat

The mix comes from Q1 2026 product-line revenue in the March 2026 Form 10-Q. Gas is the largest line, while commercial vehicle and industrial sales include the new data center turbo opportunity.

05 Risk factors

What can break the case

Auto cycle downturn

High impact · Medium odds

GTX still depends on global vehicle production. Management has called out a volatile volume environment and softer global industry trends. A sharp drop in car or truck builds would hit the cash engine that funds ZEV work and buybacks.

We watchQuarterly net sales growth by product line and management comments on global light vehicle production.

Aftermarket rebound fades

Medium impact · Medium odds

Aftermarket sales rose 16% in Q1 2026, but that followed several weak quarters tied to off-highway and North American replacement demand. The open question is whether the rebound is real demand or restocking by customers. If it fades, mix and cash flow could weaken.

We watchAftermarket sales growth for the next two quarters, especially demand for commercial vehicle parts and off-highway parts.

ZEV revenue arrives too late

High impact · Medium odds

GTX has won important ZEV programs, but many are still early. The Hyundai high-speed E-motor award targets production in 2027, and other proof-of-concept work may take longer. If legacy profits slow before ZEV revenue scales, the pivot gets harder.

We watchNew series production awards for E-Powertrain, E-Turbo, fuel cell compressors, and E-Cooling.

China mix shift cuts both ways

Medium impact · Medium odds

China is moving quickly, and local automakers are pushing plug-in hybrids and range-extended electric vehicles as well as battery-only vehicles. That can help GTX because hybrids still use turbochargers. It also adds uncertainty because customer winners and vehicle designs can change fast.

We watchGTX wins with Chinese OEMs in plug-in hybrids and range-extended electric vehicles.

Data center margins disappoint

Medium impact · Low odds

The data center gen set market is now meaningful, with sales expected to exceed $100 million in 2025. The open question is whether these industrial turbos carry margins like legacy auto turbos or require more price competition. Revenue growth alone will not help much if margins are weak.

We watchManagement comments on industrial turbo margins and repeat orders for data center backup power.
06 Quick answers

In one breath

What does Garrett Motion do?

Garrett Motion makes turbochargers and related air systems for cars, trucks, industrial engines, and replacement parts. A turbocharger helps an engine make more power from the same engine size.

Is GTX an electric vehicle company?

Not mainly today. Most revenue still comes from engine-related products, but GTX is building ZEV products such as E-Turbos, fuel cell compressors, and high-speed electric motors.

Why do data centers matter to Garrett Motion?

Many data centers use backup generators, also called gen sets, to keep power on during outages. Garrett sells industrial turbo technology into those systems, and management said these sales were expected to exceed $100 million in 2025.

What is the biggest risk for GTX stock?

The biggest risk is that the core auto business weakens before new ZEV and industrial growth becomes large enough. That would reduce the cash available for research, buybacks, dividends, and debt reduction.