Automotive Starter Motors Market Size, CAGR & Forecast, 2025-2035

Start-Stop Systems, Mild Hybrids and Heavy Trucks Keep Starter Demand Growing Despite the Shift to Battery-Electric Cars

Global spending on automotive starter motors reached USD 19.85 Billion in 2025 and is set to rise to USD 20.28 Billion in 2026 and USD 24.56 Billion by 2035, a 2.15% CAGR, according to Radial Insights. The growth comes less from more engines and more from tougher, higher-value starters that crank an engine hundreds of thousands of times.

This study covers electric starter motors that crank internal combustion engines in passenger cars, light commercial vehicles, medium and heavy trucks and buses, two-wheelers and off-highway machines. It includes direct drive, gear reduction and permanent magnet gear reduction starters, enhanced starters built for start-stop duty, 12V and 24V units, and both factory-fit (OEM) and replacement starters, including remanufactured units. We exclude alternators, belt starter generators and integrated starter generators that replace the alternator, high-voltage traction motors, and the power-split motor-generators used in full hybrids such as the Toyota system, which do not use a separate starter.

The automotive starter motors market behaves differently from most engine parts. A car with start-stop logic may restart its engine ten times on a short city trip, so it needs a starter rated for many more cycles, with stronger brushes, bearings and pinion engagement. That raises the value per unit even as the number of combustion engines built stays flat; S&P Global Mobility data cited by FORVIA HELLA in February 2026 put 2026 light vehicle output at about 92.8 million units, against 93.0 million in 2025.

The fastest-growing segment is mild hybrid vehicles at a 5.10% CAGR, followed by enhanced start-stop starters at 3.40%. Starters for conventional engines without start-stop shrink at -0.85% a year. The aftermarket grows at 3.05%, about twice the OEM rate.

Asia Pacific (APAC) is the largest region with a 44.80% share in 2025, and the Middle East is the fastest-growing region at a 2.85% CAGR. Europe grows slowest at 1.20% as battery-electric cars, which need no starter at all, gain share.

Start-Stop and Mild Hybrid Starters Grow While Conventional Starter Demand Shrinks

Growth inside the automotive starter motors market depends on how often an engine restarts and how heavy that engine is. High-cycle and heavy-duty starters gain, while basic starters for conventional cars fade. The table lists the 2025-2035 CAGR for each segment.

Enhanced Start-Stop Starters Lead by Starter Type at 3.40%

Enhanced start-stop starters grow at 3.40% because they are built for far more cranking cycles than a standard unit, with reinforced pinion engagement, longer-life brushes and quieter gearing. Permanent magnet gear reduction starters grow at 2.70% as automakers want smaller, lighter units that fit tight engine bays. Gear reduction starters grow at 2.05% and remain the volume standard. Direct drive starters grow at just 0.30%, as they survive mostly in older engine designs and some heavy-duty and two-wheeler applications.

24V Starters Outpace 12V Units

24V starters grow at 2.80% against 1.95% for 12V units. Trucks, buses and off-highway machines use 24V systems to crank large diesel engines, and that fleet grows faster than the car fleet in India, the Middle East and Africa. PHINIA won a 24V starter program for a Class 8 commercial vehicle platform in Q2 2026, and SEG Automotive launched a new heavy-duty commercial vehicle starter in November 2025.

Heavy Trucks, Off-Highway Machines and Two-Wheelers Beat Passenger Cars

Two-wheelers grow at 3.25%, the fastest vehicle segment, as more motorcycles and scooters in India and Southeast Asia ship with electric start in place of kick start. Off-highway vehicles grow at 3.05% and medium and heavy commercial vehicles at 2.90%, as diesel engines stay in trucks, tractors and construction machines far longer than in cars. Light commercial vehicles grow at 2.05%. Passenger cars grow at 1.80%, slowed by battery-electric cars in China and Europe.

Mild Hybrids Are the Fastest-Growing Powertrain Segment

Mild hybrid vehicles grow at 5.10% because most 48V mild hybrid cars keep a 12V starter for cold starts while the belt starter generator handles warm restarts. ICE with start-stop grows at 2.45%. Conventional ICE without start-stop declines at -0.85% a year as automakers add start-stop or some form of electrification to most new engines outside the US.

Aftermarket Replacement Doubles the OEM Growth Rate

The aftermarket grows at 3.05% against 1.45% for OEM supply. Start-stop cars wear out starters faster than conventional cars, the global car parc keeps aging, and remanufactured starters are common in North America and Europe. PHINIA, which sells the Delco Remy brand, and SEG Automotive, Valeo and Denso all run large replacement starter programs.

Market Trends

Starter Suppliers Shift Focus Toward Heavy-Duty Units

Suppliers are putting new engineering money into commercial vehicle starters, where cranking loads and duty cycles are highest. In November 2025, SEG Automotive used Automechanika Shanghai to launch a new heavy-duty commercial vehicle starter with a 4-pole electrical excitation winding, which it said delivers longer service life, more start cycles and better temperature resistance than the model it replaced in 2018. The unit carries an IP6k9k rating against dust and high-pressure cleaning. In July 2026, PHINIA added a 24V starter program for a Class 8 truck platform.

US Policy Turns Against Start-Stop While Europe Keeps It

Start-stop has been the main source of higher starter value in cars for a decade. In May 2025, EPA Administrator Lee Zeldin publicly criticized the feature, and in February 2026 the EPA moved to remove the off-cycle emissions credits automakers earned for start-stop systems. Roughly two-thirds of new US vehicles include start-stop logic, so automakers now decide model by model whether to keep it. In Europe, where CO2 fleet targets remain, start-stop stays standard on nearly all combustion cars.

Hybrids Split Into Two Starter Camps

Mild hybrids keep a conventional starter for cold cranking, while power-split full hybrids crank with their traction motor-generator and need no starter. In the EU, hybrid-electric cars took 34.5% of registrations in 2025, or 3,733,325 units, according to ACEA. The mix inside that number matters: European and Indian brands lean toward 48V mild hybrids, which add starter demand, while Toyota-type full hybrids remove it.

Commercial Vehicle and Off-Highway OEMs Renew Long Starter Contracts

Truck and machine programs run for a decade or more, so starter contracts tend to be renewed rather than re-bid. PHINIA reported in April 2026 that it had renewed a starter program with a global commercial vehicle and off-highway OEM. Such renewals give suppliers steady volume as passenger car starter demand slows in Europe.

Restraints and Challenges

Battery-Electric Cars Need No Starter

Every battery-electric car removes a starter motor from the bill of materials. Battery-electric cars took 17.4% of EU new car registrations in 2025, or 1,880,370 units, according to the European Automobile Manufacturers' Association (ACEA), while petrol car registrations fell 18.7%. China's high battery-electric share has the same effect, which is why the automotive starter motors market grows below vehicle output in both regions.

Full Hybrids Crank Without a Starter

Power-split full hybrids, led by Toyota, use the traction motor-generator to start the engine. As these hybrids gain share in Japan, North America and Europe, part of the hybrid boom adds nothing to starter demand. Suppliers cannot fully count on hybrids to offset battery-electric losses.

Loss of US Start-Stop Credits Could Cut Starter Value

If US automakers drop start-stop on some models after the EPA's February 2026 move to remove off-cycle credits, they may switch back to cheaper standard starters. That would lower the average starter value in North America even if unit volume holds. We have built a modest reduction in North American enhanced starter demand into the forecast.

Tariffs and Price Pressure Weigh on Margins

Starters are mature, price-sensitive parts, and many are made in China, India and Mexico for export. PHINIA's Q2 2026 results filing noted that tariff recoveries were a factor in the quarter, and sales excluding currency and acquisitions rose only 1.2%. Copper and rare earth magnet costs add further pressure on permanent magnet starter margins.

Growth Drivers

Start-Stop and Mild Hybrid Duty Raises Starter Value per Vehicle

A conventional starter may crank an engine a few thousand times in its life, while an enhanced start-stop starter must handle hundreds of thousands of starts. That gap lifts the price of each unit and shortens replacement cycles. In the EU, start-stop is standard on most combustion cars, and 48V mild hybrid systems from Valeo, SEG Automotive and Denso usually keep a 12V starter for cold starts. In the US, roughly two-thirds of new vehicles carry start-stop logic, although the EPA's February 2026 move on credits adds uncertainty there. Hybrid-electric cars, many of them mild hybrids, took 34.5% of EU registrations in 2025. We estimate higher-cycle starters add about +0.8% to the market's yearly growth through 2035, and they explain why mild hybrid vehicles post the fastest powertrain CAGR at 5.10%.

Commercial Vehicle and Off-Highway Fleets Keep Growing

Diesel engines in trucks, buses, tractors and construction machines will stay in service long after cars electrify, and each 24V heavy-duty starter costs several times a car starter. SEG Automotive's November 2025 heavy-duty starter launch and PHINIA's 24V Class 8 starter win in July 2026 show where suppliers see value. India, Saudi Arabia and Indonesia are adding trucks and machines for road and infrastructure programs, and fleets replace starters more often because of long idle and stop-and-go duty. This driver contributes about +0.6 percentage points of annual growth, and it is the main reason 24V starters grow at 2.80% compared with 1.95% for 12V units.

An Aging Global Car Parc Lifts Replacement Demand

Starters are a common wear item, and every year more vehicles pass the age at which a first starter replacement is due. PHINIA's aftermarket segment, which includes Delco Remy starters, sold USD 356 Million in Q2 2026, up from USD 334 Million a year earlier. Remanufacturing is well established for starters, so distributors can offer lower-price units with core return. SEG Automotive widened its aftermarket range at Automechanika Shanghai in November 2025. Start-stop cars that entered service in large numbers after 2015 are now reaching the replacement window. The aftermarket adds close to +0.5% to market growth each year, with the strongest gains in North America, Latin America and Africa.

Opportunities

Rugged Starters for Emerging-Market Trucks and Machines

Truck and machine fleets in India, Africa and the Middle East face heat, dust and poor roads that shorten starter life. Starters with sealed housings and higher temperature ratings, such as the IP6k9k-rated SEG Automotive unit, can command a price premium. Suppliers with local assembly in India and Morocco are well placed to serve these buyers.

Two-Wheeler Electric Start Conversion

Many low-cost motorcycles in South and Southeast Asia still offer kick start as standard. As makers such as Hero MotoCorp, Honda and Bajaj add electric start to more models, two-wheeler starters grow at 3.25% a year, the fastest vehicle segment in our forecast. Mitsuba and Lucas TVS are leading suppliers in this space.

Asia Pacific Leads Starter Revenue While the Middle East Posts the Fastest Growth

Regional growth in the automotive starter motors market follows combustion engine output, truck fleet growth and the pace of battery-electric adoption.

Asia Pacific (APAC)

Asia Pacific (APAC) held a 44.80% share of the automotive starter motors market in 2025, worth USD 8.89 Billion, and APAC revenue reaches USD 11.61 Billion by 2035 at a 2.70% CAGR. India's two-wheeler and truck output, Japan's Denso and Mitsuba plants, and China's huge combustion fleet support demand even as China's battery-electric share rises. SEG Automotive, owned by China's ZMJ, makes starters in China for domestic and export customers.

North America

North America accounted for a 21.70% share in 2025, or USD 4.31 Billion, and North American starter revenue is expected to reach USD 5.12 Billion in 2035, a 1.75% CAGR. Pickups, SUVs and Class 8 trucks dominate demand, and remanufactured starters hold a large share of the aftermarket. The EPA's February 2026 move on start-stop credits may reduce enhanced starter content in some US models.

Europe

Europe held a 21.30% share in 2025, worth USD 4.23 Billion, and the region grows at 1.20% a year to USD 4.76 Billion by 2035, the slowest rate of any region. EU battery-electric registrations reached 17.4% in 2025, according to ACEA, but most remaining combustion cars use start-stop or 48V mild hybrid systems that need high-cycle starters.

Latin America

Latin America took a 5.60% share in 2025, or USD 1.11 Billion, and the Latin American market grows at a 2.40% CAGR to USD 1.41 Billion in 2035. Brazil's flex-fuel cars and large truck fleet, plus Mexico's export engine plants, drive OEM demand, while an older vehicle parc supports replacement sales.

Middle East

The Middle East held a 3.60% share in 2025, worth USD 0.71 Billion, and the Middle East market grows at 2.85% a year, the fastest regional rate, to USD 0.95 Billion in 2035. Saudi Arabia and the UAE are adding trucks and construction equipment, and extreme heat shortens starter life.

Africa

Africa accounted for a 3.00% share in 2025, or USD 0.60 Billion, and African revenue reaches USD 0.70 Billion by 2035 at a 1.70% CAGR. Imported used vehicles make up much of the fleet, so remanufactured and aftermarket starters lead demand. South Africa and Morocco host vehicle assembly that buys OEM starters.

Recent Developments

• In July 2026, PHINIA reported Q2 2026 net sales of USD 940 Million and a new 24V starter program for a Class 8 commercial vehicle platform.

• In April 2026, PHINIA said in its Q1 2026 results that it had renewed a starter program with a global commercial vehicle and off-highway OEM.

• In February 2026, the US EPA moved to remove the off-cycle emissions credits automakers earned for automatic start-stop systems, as part of a wider rollback of vehicle greenhouse gas rules.

• In January 2026, ACEA reported that hybrid-electric cars took 34.5% of EU new car registrations in 2025 and battery-electric cars 17.4%.

• In November 2025, SEG Automotive launched a new heavy-duty commercial vehicle starter with a 4-pole excitation winding at Automechanika Shanghai.

• In May 2025, EPA Administrator Lee Zeldin publicly criticized automatic start-stop technology, signaling the later change to start-stop credits.

Four Rotating-Machine Specialists Lead the Market, With Regional Players Strong in Trucks and Two-Wheelers

The automotive starter motors market is led by a few global suppliers that make starters and alternators on shared production lines. Scale in copper winding, magnet sourcing and end-of-line testing gives them a cost edge, while regional firms hold strong positions in two-wheelers, trucks and the aftermarket.

Global OEM Leaders

Denso is the largest starter supplier to Toyota and other Japanese automakers and supplies start-stop starters worldwide. Valeo makes starters, alternators and 48V systems and sells a broad replacement range through Valeo Service. SEG Automotive, spun off from Bosch's Starter Motors and Generators division in 2018 and now owned by ZMJ, says its products power over 300 million vehicles and employs about 6,000 people. Mitsubishi Electric Mobility supplies starters to Japanese and global automakers.

Commercial Vehicle and Off-Highway Specialists

PHINIA owns the Delco Remy brand and won a 24V Class 8 starter program in Q2 2026 after renewing a commercial vehicle and off-highway contract in Q1 2026. Prestolite Electric supplies heavy-duty starters to truck, bus and machine makers. Mahle makes starters for off-highway and industrial engines through its electrical business.

Two-Wheeler and Asian Regional Suppliers

Mitsuba is a major supplier of starters to Honda and other motorcycle makers. Lucas TVS supplies starters to Indian car, tractor and two-wheeler makers. Hitachi Astemo serves Japanese automakers with starters and other engine electrical parts.

Aftermarket and Remanufacturing

BorgWarner keeps a presence in starters for selected OEM programs, including supply to Hyundai in Brazil. In the aftermarket, Denso, Valeo, SEG Automotive and PHINIA compete with independent remanufacturers, and catalog coverage and core-return programs decide much of the business.