Usui International Corporation

Name

Usui International Corporation

Legal name

USUI International Corporation

Website

https://usuiusa.com

Company type

Private

Founded year

1993

Operating status

Operating

Headcount range

501–1,000 employees

Ownership category

akta.pro rank

Product category

Automotive Components Manufacturing

NAICS

Motor Vehicle Parts Manufacturing (3363), Motor Vehicle Gasoline Engine and Engine Parts Manufacturing (336310), Other Motor Vehicle Parts Manufacturing (336390)

akta.pro primary industry

Hoses, Tubing & Fittings (Hydraulic/Pneumatic Lines & Connectors) (IMAHAGAH)

akta.pro secondary industries

Engine Components & Subsystems Manufacturing (Blocks/Heads/Valvetrain/Pistons) (IMACAHAB), Automotive Heat Exchangers Manufacturing (Radiators/Condensers/Evaporators/Heater Cores) (IMACALAC), Automotive Coolant & Refrigerant Circuit Components (Pumps/Valves/Reservoirs/Expansion Devices) (IMACALAE)

Keywords

• Automotive OEM components
• Fuel delivery systems
• Engine cooling products
• Automotive steel tubing
• Powertrain components

Headquarters

HQ city

Plymouth

HQ country

United States

HQ region

North America

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Technology or R&D, Infrastructure

Revenue model

1. Automotive OEM Component Sales: Usui International Corporation generates revenue through the sale of engineered automotive components and systems to OEM manufacturers. Their product portfolio includes fuel delivery systems (fuel rails, fuel injection tubes, fuel piping), engine cooling products (fan clutches, plastic cooling fans, ECFD), powertrain components, and specialty tubing products. Revenue is generated through long-term supply contracts with automotive OEMs for both new vehicle production and aftermarket/service parts.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Usui International Corporation engineers and manufactures automotive OEM components as a Tier 1 supplier, with a core product portfolio spanning fuel delivery systems (fuel rails, fuel injection tubes, high-pressure fuel pipes), engine cooling products (fan clutches, plastic cooling fans, externally controlled fan drives), and powertrain components (push rods, EGR tubes, turbo charger oil and water tubes). The company also supplies specialty steel tubing (single and double walled), nylon tubing, and emerging products for electric and fuel cell vehicles such as hollow motor shafts and high-pressure hydrogen tubes.

Product overview

Usui International Corporation is an automotive parts manufacturer specializing in engineered components for vehicle systems. The company produces a comprehensive portfolio of products across four main categories: Next Generation (hollow motor shafts, amorphous alloy technology, high-pressure hydrogen tubes for fuel cells), Automotive Tubing (nylon tubes, surface treatments, single and double walled steel tubing, bundled tubes), Powertrain (externally controlled fan drives, fan clutches, plastic cooling fans, BreFin TUBE™, push rods, EGR tubes, turbo charger tubes, high-pressure fuel tubes, AHI tubes, UL-FLEX® tubes, fuel rails UFRID™, fuel injection tubes USIT™-SP), and Functional Products (liquid separators, magnetic couplings, U-TIGHTSEAL® gaskets, heat exchangers). The company's core engineering expertise lies in gas and diesel fuel delivery systems, brazing techniques, and engine cooling products. The product portfolio supports all vehicle movements including 'run, stop, and turn' functions and includes environmentally friendly products for EVs and FCVs.

Differentiator

Problem solved

Functional benefit

Products and services

• USIT-SP Fuel Injection Tube High-pressure fuel injection tube for common rail diesel engines with proprietary plasticity processing, heat treatment, and inner surface smoothing; adopted on more than half of diesel engines worldwide equipped with common rail. Sold to automotive and engine OEMs.
• UFRID Fuel Rail Fuel rail with effective self-dampening capability to fuel pulsation using an optimized balance of stiffness and strength, eliminating the need for a separate pulsation dampener. Sold to automotive OEMs.
• High Pressure Fuel Tubes for Gasoline Direct Injection Engine Stainless steel tubes for high-pressure gasoline fuel in direct injection engines requiring high leak tightness, including Fenikel-steel variants with enhanced fuel corrosion resistance. Sold to automotive OEMs.
• High-Pressure Hydrogen Tubes for Fuel Cell Vehicles Stainless steel tube for delivering high-pressure hydrogen gas from the fuel tank to the fuel cell system in FCVs, with metal seal structure and high internal cleanliness. Sold to fuel cell vehicle and hydrogen system OEMs.
• Hollow Motor Shaft Hollow shaft product for electric vehicles that reduces weight and improves cooling performance by combining hollow pipe and forged materials using friction welding. Sold to EV motor and powertrain OEMs.
• Amorphous Alloy Technology
• Hycolin Single Walled Steel Tubing Electric resistance welded steel tube made from electrolytic metal-coated steel strip for fuel pipes, oil pipes, heat exchangers, and hydraulic piping, offering higher withstanding pressure and superior mechanical properties. Sold to automotive and industrial OEMs.
• Double Walled Steel Tubing Steel tube manufactured from electrolytic copper-coated steel strip with double-layered wall and copper brazing, used for brake tubing and power steering. Sold to automotive OEMs.
• Nylon Tube Nylon tubing for fuel, air brake, and cooling applications in commercial and passenger vehicles, available in straight and flexible corrugated configurations. Sold to commercial and passenger vehicle OEMs.
• UL-FLEX TUBE Flexible tube using the ByPitch construction method that absorbs thermal displacement and offers high freedom in piping design. Sold to automotive OEMs.
• Bundled Tube Pre-bundled set of fuel lines installed under the floor and in engine compartments, supporting direct connection between metal piping and resin tubing. Sold to automotive OEMs.
• BreFin TUBE Hydraulic oil piping tube with finned coils providing cooling capability for power steering and engine oil piping. Sold to automotive OEMs.
• ECFD Externally Controlled Fan Drive Fan drive with rotation speed controlled via electrical signal to a solenoid valve, integrating with the vehicle ECU to calculate and maintain optimal fan speed for improved fuel economy and reduced fan noise. Sold to engine and vehicle OEMs.
• Fan Clutch Fluid clutch using temperature-sensitive bi-metal to control fan rotation frequency for engine cooling based on radiator air temperature. Sold to engine and vehicle OEMs.
• Plastic Cooling Fan Plastic cooling fan for automobile engines with airfoil profile blade configuration for high airflow and low noise; world's first plastic cooling fan for automobile engines, developed in 1963. Sold to engine and vehicle OEMs.
• Push Rod Hollow bar product with cup-shaped upper end and ball-shaped lower end joined by projection weld, used in automotive and agricultural engines. Sold to engine OEMs.
• EGR Tube Stainless steel tube for Exhaust Gas Recirculation systems offering heat and corrosion resistance, available in austenitic and ferritic stainless steels. Sold to engine OEMs.
• Oil and Water Tube for Turbo Charger Flexible connection pipe with high heat and corrosion resistance for turbo charger oil and water circuits, supporting fuel efficiency and high engine output. Sold to engine OEMs.
• AHI Tube After Treatment Hydrocarbon Injection tube for diesel combustion burner systems used in DPF regeneration, featuring high-temperature resistance. Sold to diesel engine OEMs.
• Surface Treatment for Automotive Tubes Zinc-based or nickel-based plating treatments applied to automotive tubes to provide rust prevention and corrosion resistance. Sold to automotive OEMs and Tier suppliers.

Quantifiable outcome

• Powertrain products hold world's largest market share
• +3 more outcomes

Named customers3 records

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature9 records

Partnerships

One partnership is on record.

• Usui International KoreacoreOthers · 16 April 2026Usui International Korea is a subsidiary involved in the supply of fuel system components. In April 2026, Usui International Korea was identified alongside Kia America as tracing the cause of a fuel leak issue affecting 141,032 Kia Carnival minivans. The investigation traced the issue to inconsistent thread lubrication at the connection between fuel rails and fuel pipe during an investigation launched in January 2025.

Scale indicators2 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• TI Fluid Systems: Direct peer specializing in fluid handling systems for the automotive industry, including fuel lines, brake lines, and quick connectors. Highly comparable to Usui's automotive tubing business across fuel, brake, and powertrain fluid applications.
• Stanadyne: Specializes in diesel fuel injection systems including common rail injectors and pumps, directly competing with USIT™-SP fuel injection tubes. Comparable mid-sized Tier 1 supplier focused on diesel fuel systems for OEMs and the aftermarket.

Broad incumbents

• Marelli: Global automotive supplier offering powertrain, electronics, and thermal systems. Has product overlap with Usui in fuel delivery, exhaust/aftertreatment tubing, and engine cooling components.
• Continental AG: Major automotive supplier with a fuel and exhaust management division producing common rail components, fuel rails, and injection systems. Direct overlap with Usui's powertrain and fuel delivery product lines, but Continental is a much broader mobility and rubber-electronics conglomerate.
• Denso Corporation: Japanese Tier 1 automotive supplier with significant fuel system, engine management, and thermal management offerings. Competes with Usui in fuel injectors, fuel rails, and cooling products, with broader portfolio reach and a Japan-headquartered scale similar to Usui's parent.
• Hitachi Astemo: Japanese automotive systems supplier producing fuel injection systems, engine management, and electric powertrain components. Direct overlap with Usui's fuel injection tube and rail business, and competes in next-generation EV/FCV components.
• Aisin Seiki: Japanese Tier 1 supplier of automotive components including powertrain, body, and chassis systems. Comparable to Usui in being a Japan-headquartered parts manufacturer serving global OEMs with broad component portfolios.
• Robert Bosch: Global Tier 1 supplier of automotive fuel injection systems, including common rail diesel components that compete directly with USIT™-SP. As a broad incumbent, Bosch spans fuel systems, powertrain, and electronics, dwarfing Usui's scope but overlapping in core fuel injection.
• BorgWarner: Global powertrain and emissions supplier producing turbochargers, EGR systems, and engine timing components. Overlaps with Usui's turbo charger oil/water tubes, EGR tubes, and AHI tubes for DPF regeneration systems.
• Eaton Corporation: Diversified industrial manufacturer with an automotive components segment producing powertrain and emissions components including EGR systems and engine valves. Comparable in serving commercial vehicle and passenger car OEMs with engineered components.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Usui International Corporation