What Tenneco makes

Tenneco designs, manufactures, and distributes automotive components and systems across four business segments serving original equipment manufacturers, aftermarket distributors, and industrial customers in more than 27 countries.

The DRiV segment covers the global vehicle aftermarket and original equipment service market, selling under more than a dozen established brand names including Monroe, Champion, Ohlins, MOOG, Walker, Fel-Pro, Wagner, Ferodo, Rancho, Thrush, National, and Sealed Power. Performance Solutions produces noise, vibration, and harshness (NVH) materials, advanced suspension technologies, ride control systems, braking products, and systems protection components for OE and aftermarket customers. Monroe Ride Solutions, a dedicated unit within this segment, focuses on shock absorbers and dampers; a separate Tenneco NVH Solutions team addresses the full spectrum from light vehicles to commercial trucks and electric platforms. Clean Air designs exhaust systems, catalytic converters, particulate filters, and acoustic components to help vehicle manufacturers meet emissions regulations, serving light vehicles, commercial trucks, off-highway equipment, and motorcycles. Powertrain produces pistons, piston rings, cylinder liners, bearings, valve seats, valve guides, gaskets, seals, heat shields, and engine valves for light vehicle, commercial truck, off-highway, and industrial applications, covering engine sizes from 25 mm bore to over 1,000 mm bore with more than 100,000 horsepower.

Tenneco's Powertrain group also addresses industrial markets through large-bore engine components. The company describes its portfolio as spanning 30-plus widely recognized brands, with more than 15 of those brands holding over 100 years of history in their respective categories.

In April 2025, Tenneco introduced a Low Emission Brake technology developed to meet Euro 7 and anticipated China 7 brake particulate standards, which are the first standards to impose limits on PM10 and PM2.5 emissions from vehicle brakes. The company says the technology has already been selected for upcoming passenger vehicle models from two European automakers.

Financial performance

Tenneco reported $15,938 million in revenue for the full year 2025, per its 2025 Sustainability Report. The Berylls by AlixPartners Top-100 automotive supplier study places Tenneco's FY2025 automotive-sector revenue at approximately €14.1 billion, down an estimated 18.7% from the €17.4 billion reported for FY2024, a decline the Berylls notes indicate reflects Apollo's restructuring of the company's supplier portfolio and scope, not purely an operational contraction.

The company operates 169 manufacturing sites, 39 engineering and technical centers, and 32 aftermarket distribution centers and warehouses as of the 2025 report period. The global workforce stood at 57,726 team members at year-end 2025.

Tenneco is privately held under Apollo Global Management, which completed the acquisition in 2022. As a private company, Tenneco does not publish standalone audited financial statements. In January 2025, the company restructured its El Paso, Texas operations, resulting in 140 layoffs at one facility, per a January 2025 report in the El Paso Times.

Ownership and history

The Chicago Corporation investment trust was formed in 1930; its subsidiary Tennessee Gas was incorporated as Tenneco, Inc. in 1966. The company spun off its automotive division as Tenneco Automotive in 1999, rebranded back to Tenneco in 2005, and organized its business into the Clean Air and Ride Performance divisions in 2013.

In 2018, Tenneco acquired Federal-Mogul, doubling its size and adding the Powertrain and DRiV aftermarket segments to its portfolio. Tenneco restructured into four business groups: Clean Air, DRiV, Performance Solutions, and Powertrain, in 2020.

Apollo Global Management acquired Tenneco in 2022, taking the company private. Tenneco is headquartered in Northville, Michigan.

In November 2025, Tenneco listed its Indian subsidiary, Tenneco Clean Air India Limited, on the BSE and NSE stock exchanges under the ticker "TENNIND." Tenneco India encompasses the company's Clean Air, Champion Ignition, Powertrain, and Monroe Ride Solutions businesses in India.

Certifications and quality

Per the company's 2025 Sustainability Report, 99% of Tenneco's manufacturing sites were certified to the International Automotive Task Force (IATF) 16949 Quality Management System or a comparable applicable quality management standard. The same report states that 90% of manufacturing sites hold ISO 14001 Environmental Management System certification, and 63% hold ISO 45001 Occupational Health and Safety certification. Tenneco describes PPAP and structured quality management as standard across its operations, with quality governance applied through its global P3 operating standard.

In 2025, Tenneco assessed more than 1,300 suppliers as part of its sustainability engagement program. The company received a CDP Climate Change score of "B" and an EcoVadis Silver rating placing it in the top 5% of companies assessed.

Known customers

Tenneco's known OEM customer relationships include General Motors, which publicly recognized Tenneco for performance, quality, and innovation (per a 2018 company announcement). The company's 2024 Sustainability Report names General Motors, John Deere, and Stellantis as founding partners of a collaborative supply-chain sustainability initiative. In 2018, Tenneco supplied suspension components for the Suzuki Swift Sport and Maruti Suzuki Dzire, per a company announcement. The company's April 2025 press release states that its Low Emission Brake technology has been selected by two leading European automakers for upcoming passenger vehicle programs.

Tenneco's aftermarket brands serve a broad distribution base across North America, Europe, Asia, and other regions, through the independent aftermarket and original equipment service channels.

Recent news

November 2025: Tenneco listed its Indian subsidiary, Tenneco Clean Air India Limited, on the BSE and NSE stock exchanges under the ticker "TENNIND," marking a milestone in the company's transformation strategy under Apollo Global Management (Tenneco press release).

June 2026: Tenneco published its eighth annual Sustainability Report, covering full-year 2025 performance. The report highlights a 33% reduction in recordable incident rate versus the 2019 baseline, 18% reduction in greenhouse gas emissions intensity, and 99% IATF 16949 certification coverage across manufacturing sites (Tenneco press release, June 3, 2026).

April 2025: Tenneco introduced a Low Emission Brake technology designed to meet Euro 7 and anticipated China 7 brake particulate emissions standards, with confirmed selection on programs at two European automakers (Tenneco press release via Globe Newswire).

Sourcing evidence

Tenneco's US import record shows 27,506 ocean shipments from January 2015 through September 16, 2026, under the Tenneco Automotive Operating entity and its DRiV Automotive Inc. subsidiaries. The product mix reflects the company's own manufacturing operations: mufflers and exhaust pipes (7,895 shipments), other automotive parts (5,353 shipments), suspension systems and components including shock absorbers (5,132 shipments), and catalytic converters and particulate filters (1,238 shipments) account for the large majority of volume. This is the import pattern of a manufacturer sourcing finished sub-assemblies and components from its own global plant network for US assembly and distribution, not a trading intermediary.

Origin countries include China, India, South Korea, Germany, Italy, Mexico, Japan, and Spain, reflecting Tenneco's distributed global manufacturing footprint. Tenneco Suzhou in China is the largest recorded supplier entity, with 3,454 shipments to US entities over the period. The Tenneco Suzhou supplier also ships to several other automotive manufacturers and tier suppliers, placing it inside established global supply networks.

Coverage caveats apply: these records cover US ocean freight only. Air, truck, and cross-border movements between US and Mexico do not appear. Some records name freight intermediaries rather than manufacturing entities. Product codes come from declared manifest entries and can vary in precision. Tenneco's US customs footprint as a global manufacturer is far larger than any single subsidiary record captures.

Source: US customs bill-of-lading records and public filings. Last verified Sep 22, 2026. Is this your company? Request a correction.

Frequently asked questions

What does Tenneco make?

Tenneco designs and manufactures automotive components across four business segments: DRiV (aftermarket products under Monroe, Champion, MOOG, Ferodo, and other brands), Performance Solutions (suspension, NVH, braking, and systems protection), Clean Air (exhaust systems, catalytic converters, and particulate filters), and Powertrain (pistons, piston rings, bearings, valves, gaskets, and related engine components). The company serves OEMs, aftermarket distributors, and industrial customers in more than 27 countries.

Who owns Tenneco?

Apollo Global Management, a private equity firm, acquired Tenneco in 2022 and took it private. Tenneco had previously been a publicly traded company (NYSE: TEN). A subsidiary, Tenneco Clean Air India Limited, listed on Indian exchanges (BSE and NSE, ticker TENNIND) in November 2025.

What is Tenneco's annual revenue?

Tenneco reported $15,938 million in revenue for the full year 2025, per its 2025 Sustainability Report. The Berylls by AlixPartners Top-100 study places FY2025 automotive-sector revenue at approximately €14.1 billion, down an estimated 18.7% from FY2024. As a private company under Apollo, Tenneco does not publish standalone audited financial statements.

Where is Tenneco headquartered?

Tenneco is headquartered in Northville, Michigan, United States. The company operates 169 manufacturing sites, 39 engineering and technical centers, and 32 aftermarket distribution centers across more than 27 countries, with major operations in China, India, Mexico, Germany, Poland, and the United States.

Who are Tenneco's customers?

Documented OEM customer relationships include General Motors, Stellantis, and John Deere, named as partners in Tenneco's sustainability initiatives in its 2024 Sustainability Report. Tenneco also supplies two European automakers with Low Emission Brake technology for Euro 7 programs, per an April 2025 press release. The DRiV aftermarket segment serves independent distributors and original equipment service channels worldwide under brands including Monroe, Champion, MOOG, Ferodo, and Walker.