What Dayco makes

Dayco is a power-transmission specialist. Its core products are the belts and belt-drive systems that turn an engine's rotation into accessory and camshaft motion: timing belts and timing belt kits, accessory (serpentine and Poly-V) drive belts, and the tensioners, idlers, and pulleys that keep those belts aligned and correctly loaded. Around that core the company builds overrunning alternator decouplers, torsional viscous dampers, continuously variable transmission belts and components, and belt starter generator systems for hybrid drivelines. It also produces hydraulic and industrial hose, and, on the aftermarket side, water pumps and thermal-management parts.

Dayco sells through two channels. As an original equipment supplier it engineers drive systems into new vehicles and engines; as an aftermarket brand it supplies kits and replacement parts to distributors, jobbers, and repair shops. The company positions itself as a systems solutions provider for hybrid electric vehicles, and its product keywords extend into hydrogen fuel-cell drive components, reflecting a push to keep belt and drive expertise relevant as powertrains electrify. Applications span light vehicles, trucks and commercial vehicles, construction, agriculture, industrial equipment, marine and powersports, and lawn and garden.

Because belts and tensioners are safety- and durability-critical parts fitted to engine programs, Dayco operates as a Tier 1 and OES supplier subject to full automotive quality discipline, including PPAP approval on OE parts.

Ownership and history

Dayco traces its roots to 1905, when the Dayton Rubber Manufacturing Co. was founded in Dayton, Ohio. Over the following century the drive-systems business grew into a global brand, passing through the Mark IV Industries group and a series of financial owners. The Carlyle Group owned the group in the mid-2010s, and an investor group led by Oaktree Capital and TPG held it in the years after.

In 2022, Hidden Harbor Capital Partners, a US private-equity firm, agreed to acquire Dayco. The deal was announced in July 2022 and closed in the third quarter of that year. Financial terms were not disclosed. Under Hidden Harbor, Dayco moved its corporate headquarters to Birmingham, Michigan, and rebuilt its senior team: Craig Frohock joined as Chief Executive Officer in January 2023 after leadership roles at Tenneco and 19 years at Meritor; Michael Widgren joined as Chief Financial and Administration Officer in June 2023 from Tenneco, with earlier finance leadership at General Motors and Visteon; and Clifton Levack joined as Chief Supply Chain Officer in December 2023 from Mann+Hummel. Dayco reports roughly 1,900 associates and more than 30 locations across 20 countries. As a privately held, PE-owned company it does not publish audited financial results; third-party revenue estimates vary widely and should be treated as approximate.

Manufacturing footprint

Dayco runs a distributed global network of manufacturing, distribution, and sales sites. In the United States, the corporate headquarters is at 401 S. Old Woodward Avenue in Birmingham, Michigan, with an ISO 9001-certified operation in Memphis, Tennessee, and a Springdale, Arkansas distribution presence visible in US import records. In Italy, the company operates plants in Chieti, Colonnella, Manoppello, Ivrea, and Burolo, a cluster that reflects the group's European belt-manufacturing heritage. In China it runs sites in Guiyang, Suzhou, and Shanghai. Additional operations sit in Australia (Hallam and Wagga Wagga), Argentina (Cordoba), Brazil (Indaiatuba), Mexico (San Luis Potosi), and Canada (Milton, Ontario). This spread lets Dayco produce belts and drive components regionally and move them across its own network, a pattern that also shows up in its customs record as intercompany shipments from its European and Chinese plants.

Certifications and quality

Dayco maintains automotive quality certifications across its manufacturing base. Its plants in Chieti, Colonnella, and Manoppello (Italy), Guiyang and Suzhou (China), Cordoba (Argentina), and San Luis Potosi (Mexico) hold IATF 16949, the automotive quality-management standard that most OEMs require of drive-system suppliers. Sites including Ivrea, Shanghai, Hallam, Wagga Wagga, and Memphis carry ISO 9001. Environmental management (ISO 14001) and occupational health and safety (ISO 45001) certifications are held across most plants, and the Chieti facility holds TISAX, the automotive information-security assessment. The company publishes downloadable certificate PDFs by plant and maintains a global Quality Policy and EHS Policy dated 2026.

Known customers

Dayco is an OE drive-systems supplier and lists General Motors, Ford, and Caterpillar among the original-equipment manufacturers it works with. As is normal for a Tier 1 belt and tensioner supplier, specific program assignments are not published; the company also serves a broad independent aftermarket through distributors and repair channels rather than a fixed named-customer list.

Sourcing evidence

Dayco's US import footprint is large and current. US customs bill-of-lading records show more than 5,000 shipments on record for the company's US operating entity, with the most recent shipment dated September 21, 2026. The named foreign shippers include Dayco's own Europe and China (Guizhou) operations alongside Chinese component suppliers such as Ningbo Tegao Axle and Ningbo Shengqian Trade, which is the expected pattern for a manufacturer moving belts and components across its own global plant network rather than a pure importer of finished goods.

Coverage caveats apply. These are US ocean-freight import records only; air, truck, and rail movements do not appear, and multiple related Dayco entities (a Mira Loma, California importer and separate Springdale, Arkansas plant and distribution records) show up under slightly different names. Product categories on manifests are declared codes and can be noisy. Absence of a record is not evidence of absence. A buyer weighing nearshoring or tariff exposure should note that Dayco's North American production in Mexico and the US sits alongside meaningful European and Chinese manufacturing.

Frequently asked questions

What does Dayco make?

Dayco makes engine drive systems and power-transmission products: timing belts, accessory (serpentine) belts, tensioners, idlers, pulleys, overrunning alternator decouplers, viscous dampers, CVT components, belt starter generator systems for hybrids, and hydraulic and industrial hose. It supplies both original-equipment manufacturers and the independent automotive aftermarket.

Who owns Dayco?

Dayco is owned by Hidden Harbor Capital Partners, a US private-equity firm that acquired the company in 2022 (announced July 2022, closed in the third quarter). Earlier owners of the drive-systems group included an investor group led by Oaktree Capital and TPG, and, before that, The Carlyle Group. The business traces back to the Dayton Rubber Manufacturing Co., founded in 1905.

Where is Dayco headquartered?

Dayco's corporate headquarters is at 401 S. Old Woodward Avenue, Suite 308, Birmingham, Michigan 48009, United States. The company operates more than 30 locations across 20 countries, including plants in the United States, Italy, China, Australia, Argentina, Brazil, and Mexico.

How many employees does Dayco have?

Dayco reports roughly 1,900 associates worldwide. As a privately held, private-equity-owned company it does not publish audited financial statements, so headcount and revenue figures come from the company's own materials and third-party estimates rather than public filings.

What certifications does Dayco hold?

Dayco holds IATF 16949 automotive quality certification at multiple plants (including sites in Italy, China, Argentina, and Mexico), along with ISO 9001 quality, ISO 14001 environmental, and ISO 45001 health-and-safety certifications across most of its manufacturing base. Its Chieti, Italy plant also holds TISAX for automotive information security.

Who are Dayco's customers?

Dayco supplies original-equipment manufacturers and lists General Motors, Ford, and Caterpillar among them, and it serves a broad independent aftermarket through distributors, jobbers, and repair shops. Specific OE program assignments are not publicly disclosed, which is standard for a Tier 1 belt and tensioner supplier.

Last verified September 27, 2026. Is this your company? Request a correction.