Automotive Camshafts Market Size, CAGR & Forecast, 2025-2035

Hybrid Engines Keep Camshaft Demand Growing While Pure Combustion Volumes Plateau

Global spending on automotive camshafts reached USD 3.42 Billion in 2025 and Radial Insights projects USD 3.49 Billion in 2026 and USD 4.19 Billion by 2035, a 2.05% CAGR, because hybrids still need a full valvetrain.

The automotive camshafts market covers the rotating shafts that open and close intake and exhaust valves in four-stroke engines of passenger cars, light commercial vehicles, heavy trucks and motorcycles. We include cast, forged, assembled and billet camshafts, single camshafts and complete camshaft modules that ship with bearings and caps, sold to engine plants and to the replacement and performance aftermarket. Cam phasers, tappets, rocker arms, timing chains and belts, and marine or stationary engine camshafts are excluded and counted only as context.

World motor vehicle output rose 3.9% to about 96.4 million units in 2025, according to OICA, and S&P Global Mobility puts 2025 light vehicle production at 92.9 million units. That volume base matters more than headline electric car growth: the IEA says electric cars passed 20 million sales in 2025, roughly one in four new cars, yet a large part of that figure is plug-in hybrids that still carry two camshafts per cylinder head.

Hybrid electric engines are the fastest growing powertrain segment at a 7.80% CAGR, and assembled camshafts are the fastest growing product type at 3.85% because they save weight and suit Atkinson and Miller cycle engines. Africa is the fastest growing region at 3.20% a year from a small base, while Asia Pacific (APAC) adds the most new revenue.

The supplier base is consolidating around firms that can machine and assemble camshafts at high volume. Precision Camshafts in India has booked lifetime orders of nearly INR 15 billion through 2032, MAHLE reported a rising share of combustion engine products in its 2025 order intake, and Stellantis is restarting large V8 volumes in North America.

Assembled Camshafts for Hybrid DOHC Engines Grow Fastest Across Every Dimension

Growth in the automotive camshafts market depends less on how many vehicles are built and more on which engines go into them. Rates below are Radial Insights estimates for 2025 to 2035.

Assembled Camshafts Outpace Cast Parts as Engine Makers Chase Weight Savings

Cast camshafts in chilled or nodular iron remain the volume workhorse for small gasoline engines in India, China and Southeast Asia, but they grow at only 1.45% a year. Assembled camshafts, where hardened cam lobes are joined to a steel tube, save weight against one-piece shafts and let designers vary lobe material, which is why they expand at 3.85%. Precision Camshafts told investors in December 2025 that most of its new business is machined and assembled camshafts. Forged camshafts, used in diesel and high-load truck engines, grow at 1.70%, while billet camshafts for performance builds rise at 2.30%.

DOHC Layouts Win Because Variable Valve Timing Needs Two Shafts

Double overhead cam heads grow at 2.45% because independent intake and exhaust phasing is the cheapest way to run efficient Atkinson and Miller cycles. Single overhead cam engines, still common in entry motorcycles and some small cars, grow at 0.90%. Cam-in-block engines rise at 1.10%, supported by the HEMI V8 revival at Stellantis and big American pickup engines.

Two-Wheelers and Passenger Cars Lead Vehicle Demand

Two-wheelers grow fastest at 2.95% because Asian motorcycle output keeps rising and most models remain combustion powered. Passenger cars grow at 2.10% on hybrid mix, light commercial vehicles at 1.75% and heavy commercial vehicles at 1.60%, as truck makers balance diesel efficiency upgrades against battery electric and hydrogen trials.

Hybrids Offset the Steady Decline of Diesel

Hybrid electric engines expand at 7.80% a year, the strongest rate in the study, because every full, mild or plug-in hybrid still uses a valvetrain. Alternative fuel engines running on CNG, LPG, ethanol or hydrogen grow at 4.60%. Gasoline engines rise at 1.40%, while diesel camshafts decline at minus 0.85% as diesel car registrations fall in Europe.

Aftermarket Demand Grows Slightly Faster Than OEM Fitment

OEM supply grows at 1.95%, in line with engine output. The aftermarket grows at 2.55% because the global fleet is aging and performance camshaft upgrades remain popular in North America and Australia.

Market Trends

Next-Generation Hybrid Engines Rely on Camshaft Timing Strategies

Hyundai Motor Group unveiled its next-generation hybrid system in May 2025, including a Smartstream 2.5 Turbo hybrid engine that raises compression from 10.5:1 to 12:1 using late intake valve closing, a strategy delivered through camshaft profiles and phasing. Toyota followed in October 2025 at the Japan Mobility Show with new 1.5 liter and 2.0 liter turbo engines designed for hybrids and plug-in hybrids. Both programs lock in camshaft demand well into the 2030s.

The American V8 Comeback Restores Large Camshaft Volumes

Stellantis brought the 5.7 liter HEMI V8 back to the Ram 1500 in the third quarter of 2025, and in January 2026 it set a target of more than 100,000 HEMI V8 engines in 2026, against roughly 30,000 in 2025. Schaeffler said it would add tappet support production at Ingolstadt from August 2026 to serve North American HEMI demand, a sign of how quickly valvetrain suppliers are reacting.

Indian Engine Programs Shift Volume Toward Machined and Assembled Parts

Precision Camshafts disclosed in December 2025 about INR 1.2 billion of investment in new plants at Solapur and nearly INR 15 billion in lifetime orders through 2032, covering Maruti Suzuki's new three-cylinder engines, Hyundai India's Pune plant and Mahindra programs with production starting in 2026. Maruti Suzuki's Kharkhoda plant, built for about INR 350 billion and designed for 1 million vehicles a year, was set for inauguration in July 2026.

Suppliers Keep Combustion Businesses as Cash Generators

MAHLE reported 2025 sales of EUR 11.257 billion in April 2026 and said the share of combustion engine products in its order intake grew. thyssenkrupp renamed its camshaft business Dynamic Components and now runs 18 sites making assembled camshafts and camshaft modules, while also building rotor shafts for electric motors on similar lines.

Restraints and Challenges

Battery Electric Vehicles Remove the Valvetrain Entirely

Every battery electric car built instead of a combustion or hybrid model removes one to four camshafts from demand. The IEA expects electric car sales of 23 million in 2026, close to 30% of new cars, and China alone produced about 16.6 million new energy vehicles in 2025. Radial Insights estimates that battery electric substitution trims about 1.1 percentage points from annual camshaft growth.

Diesel Decline Hurts Forged Camshaft Plants in Europe

Diesel cars took only 8.9% of EU registrations in 2025, according to ACEA, and diesel volumes fell sharply again during the year. Forged steel camshaft lines built for diesel engines in Germany, France and Italy are running below capacity, and Precision Camshafts booked an impairment of about INR 497 million in late 2025 after its German subsidiary MFT GmbH entered liquidation.

Regulatory Costs Raise the Price of Keeping Combustion Engines

Euro 7, adopted as Regulation (EU) 2024/1257, applies to new car and van types from 29 November 2026 and to all new cars from 29 November 2027, with trucks and buses following in 2028 and 2029. Engine makers must fund new calibration and aftertreatment, which pushes some to drop low-volume engines rather than update them.

Price Pressure From Engine Makers and Raw Material Costs

Camshafts are a high-volume machined part, and OEM buyers expect annual price reductions in the low single digits. Steel tube, alloy and energy costs swing faster than contract prices, squeezing margins for mid-sized suppliers that lack scale in grinding and induction hardening.

Growth Drivers

Hybrid Volumes Keep the Valvetrain on Most New Cars

Hybrids are the single biggest support for camshaft demand. ACEA data show 3,733,325 hybrid electric cars registered in the EU in 2025, a 34.5% share and the largest of any powertrain, ahead of battery electric cars at 17.4% and plug-in hybrids at 9.4%. Toyota, Hyundai, Honda and BYD are all launching new hybrid-specific engines, and these engines usually use double overhead cams with wide phasing range to run the Atkinson cycle. A hybrid often has a smaller engine than the gasoline model it replaces, but it still needs two camshafts per head, and the parts are more precisely ground because the engine stops and starts thousands of times a year. Radial Insights estimates that rising hybrid mix adds about +1.3% of annual growth to the automotive camshafts market through 2035, the largest single contribution of any driver.

Vehicle Output Growth in South Asia and Emerging Markets

OICA reports that India built about 6.49 million motor vehicles in 2025, up 8%, and SIAM data show record domestic passenger vehicle sales of about 4.64 million units in fiscal 2026, up 7.9%, with commercial vehicle sales up 12.6% to about 1.08 million. S&P Global Mobility expects South Asia to add about 0.6 million units of light vehicle production in 2026, the biggest positive regional change, even as China, North America and Europe edge down. These markets favor small gasoline, CNG and hybrid engines that use cast or assembled camshafts, and buyers such as Maruti Suzuki, Hyundai India and Mahindra are adding new engine lines. Emerging market volume contributes roughly 0.7 percentage points to yearly market growth.

Engine Refreshes and Large Engine Programs in North America

Stellantis announced a USD 13 billion US investment plan in October 2025, including a new GMET4 EVO four-cylinder engine at Kokomo, Indiana, and has lifted its HEMI V8 target to more than 100,000 engines for 2026. Pickup trucks, large SUVs and heavy-duty vans in the United States keep large displacement gasoline engines in production, and the US heavy-duty NOx rule for 2027 is pushing truck engine makers to redesign valvetrains for better thermal management. Each new engine program brings a fresh camshaft design, tooling and a multi-year supply contract. We estimate that North American engine programs add close to +0.4% a year to market CAGR, helping offset Europe's diesel decline.

Opportunities

Camshaft Modules With Integrated Bearings

Engine makers increasingly buy the camshaft already mounted in a cylinder head cover with bearings and caps. Modules carry several times the value of a bare shaft and lock suppliers in for the life of the engine, which favors thyssenkrupp, Linamar and MAHLE.

Reusing Grinding Lines for Electric Motor Shafts

Rotor shafts for electric motors use the same turning, hardening and grinding skills as camshafts. Suppliers that run both on shared lines can keep plants full as the powertrain mix changes, protecting margins on legacy camshaft volume.

Asia Pacific Holds More Than Half of Camshaft Revenue as Western Markets Flatten

Asia Pacific (APAC)

Asia Pacific (APAC) accounted for 52.40% of the automotive camshafts market in 2025, about USD 1.79 Billion. Revenue in Asia Pacific (APAC) is forecast to reach about USD 2.33 Billion by 2035, a 2.68% CAGR. China built about 34.5 million vehicles in 2025 according to OICA, Japan 8.41 million and India 6.49 million, and the region also makes most of the world's motorcycles. Hybrid launches from Toyota, Hyundai and Chinese brands keep demand rising even as battery electric share grows in China.

Europe

Europe held 21.30% of the market in 2025, worth about USD 728.5 Million. European camshaft revenue is projected to reach about USD 788.9 Million by 2035, a 0.80% CAGR, the slowest of any region. Hybrids now outsell every other powertrain in the EU, but diesel losses and Euro 7 compliance costs limit growth, and suppliers such as MAHLE and thyssenkrupp are shifting capacity to electric motor parts.

North America

North America represented 17.60% of 2025 revenue, about USD 601.9 Million. The North American market is expected to reach about USD 674.8 Million by 2035, growing at 1.15% a year. The United States built about 10.24 million vehicles in 2025, and the HEMI V8 restart at Stellantis plus strong pickup demand keep cam-in-block and large DOHC engines in production. The aftermarket for performance camshafts from COMP Cams, Crane Cams and Melling is also strongest here.

Latin America

Latin America took 4.90% of the market in 2025, about USD 167.6 Million. Latin American camshaft sales are forecast to reach about USD 212.4 Million by 2035, a 2.40% CAGR. Brazil produced about 2.64 million vehicles in 2025, and its flex fuel ethanol engines remain the dominant powertrain, which supports steady camshaft demand. Mexico's engine plants, including Stellantis Saltillo, export to the United States.

Middle East

The Middle East accounted for 2.30% of 2025 revenue, about USD 78.7 Million. Middle East camshaft revenue is projected to reach about USD 104.7 Million by 2035, a 2.90% CAGR. Demand comes mainly from aftermarket replacement in a fleet dominated by large gasoline SUVs and pickups, plus new assembly projects in Saudi Arabia and Turkey's engine production base.

Africa

Africa held 1.50% of the market in 2025, about USD 51.3 Million. African camshaft revenue should reach about USD 70.3 Million by 2035, the fastest regional rate at 3.20%. South Africa and Morocco host export-oriented vehicle plants, and an older used-car fleet across the continent supports high aftermarket replacement rates.

Recent Developments

• In May 2026, Precision Camshafts reported fourth quarter fiscal 2026 total income of INR 2.06 billion and net profit of INR 100.6 million, as new programs for Indian carmakers moved toward production.

• In April 2026, MAHLE reported 2025 sales of EUR 11.257 billion and said the share of combustion engine products in its order intake had increased, naming combustion engine leadership as a focus area beyond 2030.

• In March 2026, Linamar reported 2025 sales of about CAD 10.2 billion, with its Mobility segment, which includes engine and camshaft machining, contributing about CAD 7.7 billion.

• In January 2026, Stellantis said it aims to build more than 100,000 HEMI V8 engines in 2026, up from about 30,000 in 2025, at its Saltillo engine plant in Mexico.

• In December 2025, Precision Camshafts outlined about INR 1.2 billion of investment in new Solapur plants and nearly INR 15 billion of lifetime orders through 2032 for Maruti Suzuki, Hyundai India and Mahindra engines.

• In October 2025, Stellantis announced a USD 13 billion US investment plan that includes production of the new GMET4 EVO engine at Kokomo, Indiana.

A Handful of Module Specialists and Regional Casting Houses Supply Most Camshafts

The automotive camshafts market is moderately concentrated. Engine makers such as Toyota, Volkswagen and Hyundai machine part of their own camshafts, but a group of global suppliers dominates assembled camshafts and modules, while regional foundries and machine shops serve cast camshaft demand. Scale in grinding, induction hardening and joining technology decides who wins long engine contracts.

Global Module and Assembled Camshaft Leaders

thyssenkrupp's Dynamic Components unit runs 18 sites and is one of the largest makers of assembled camshafts and complete camshaft modules, including truck camshafts at Chemnitz in Germany. Linamar of Canada machines and assembles camshafts for many North American and European engine programs. MAHLE supplies valvetrain parts and camshafts as part of its powertrain business and is investing to stay a leading combustion engine supplier after 2030.

Asian Volume Specialists

Precision Camshafts Ltd of India is a specialist in cast and machined camshafts and counts Maruti Suzuki, Hyundai and Mahindra among its customers. Musashi Seimitsu of Japan, closely tied to Honda, makes camshafts and other powertrain parts for cars and motorcycles. Seojin Cam in South Korea supplies camshafts to Hyundai and Kia engine plants. These suppliers benefit most from Asia's hybrid and small engine growth.

Forging and Casting Specialists

Hirschvogel Automotive Group in Germany is known for forged and machined powertrain parts, including forged steel camshafts and cam lobes. Estas Camshaft in Turkey specializes in chilled cast iron camshafts for European and Asian engine makers and for the replacement market. Schaeffler is not a camshaft maker in the strict sense, but its cam phasers, finger followers and tappets shape how camshafts are designed, and its Homburg plant has built more than 8 billion finger followers.

Aftermarket and Performance Brands

Melling supplies replacement camshafts and oil pumps to North American repair shops. COMP Cams and Crane Cams, both part of the COMP Performance Group, lead the performance camshaft segment with billet and custom profiles for racing and street builds. These brands earn higher margins per part and are less exposed to electric vehicle substitution than OEM suppliers.