Future Market Insights (FMI) estimates that the automotive connecting rod bearing market will grow from USD 305.7 million in 2026 to USD 1,001.6 million by 2036, registering a 12.6% CAGR between 2026 and 2036. Passenger vehicles are expected to account for 65.0% of application demand in 2026, while OEM integration is projected to represent 70.0% of end-use demand.

The automotive connecting rod bearing market is expanding as internal combustion engine production, engine rebuild activity and precision powertrain component requirements sustain demand for bearing shells used in passenger cars and commercial vehicles. While vehicle powertrains are becoming increasingly electrified, internal combustion engines remain an important source of component demand, particularly across existing vehicle fleets and hybrid applications.

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Why are precision connecting rod bearings gaining commercial importance?

For engine manufacturers and rebuild specialists, connecting rod bearings are precision wear components that must maintain the correct clearance between connecting rods and crankshaft journals. Bearing selection is therefore closely linked to engine design, dimensional tolerances, lubrication requirements and operating conditions.

The commercial importance of these components extends beyond new vehicle production. As vehicles remain in service for longer periods, engine rebuild and overhaul activity creates replacement demand for connecting rod bearings. High-mileage passenger vehicles and commercial vehicles can require bearing replacement during major engine maintenance, providing an aftermarket channel alongside OEM supply.

This combination of OEM and aftermarket demand gives the connecting rod bearing market a broader demand base. New engine production supports predictable component volumes, while engine rebuild activity can sustain replacement demand as vehicle owners extend operating lifecycles rather than immediately replacing vehicles.

Hybrid powertrains are also creating an emerging application opportunity. Hybrid vehicles continue to use internal combustion engines alongside electric propulsion systems, allowing precision engine components such as connecting rod bearings to remain relevant even as the overall powertrain mix shifts toward electrification.

Which bearing formats and vehicle categories are shaping demand?

Passenger vehicles are projected to remain the largest application category, accounting for 65.0% of demand in 2026. The segment benefits from the large installed base of internal combustion engines and continued production of ICE and hybrid passenger vehicles.

Connecting rod bearings are primarily supplied as precision-manufactured bearing shells for engine applications. Bimetal and trimetal constructions support different performance requirements, allowing manufacturers to tailor bearing materials to engine operating conditions and durability specifications.

OEM integration represents 70.0% of end-use demand. Engine manufacturers require bearings manufactured to precise specifications for direct assembly-line installation, making dimensional accuracy, material consistency and supply reliability important purchasing considerations.

Direct sales account for 65.0% of distribution demand. This reflects the established supply relationship between bearing manufacturers, engine producers and automotive OEMs, where components are developed and validated around specific engine platforms.