Typically, the 2003 Honda Accord EX uses a 2.4-liter inline-4 i-VTEC engine; there was also an EX-V6 variant with a 3.0-liter V6, depending on the trim and model year.
In 2003, Honda offered two engines across the Accord lineup. The most common EX sedan used the 2.4-liter i-VTEC four-cylinder, delivering roughly 160 horsepower. For buyers who opted for the sportier EX-V6 trim, the vehicle used a 3.0-liter V6 with around 240 horsepower. Exact power figures can vary slightly by transmission and equipment from that year.
Engine options for the 2003 Accord EX
The following outlines the two engine choices that appeared in the 2003 Accord lineup, including the EX models that year.
- 2.4-liter inline-4 i-VTEC: approximately 160 horsepower and about 160 lb-ft of torque.
- 3.0-liter V6: approximately 240 horsepower and about 212 lb-ft of torque.
These figures reflect typical specifications for the 2003 model year; actual output may vary with the precise car's options, transmission, and market.
EX vs EX-V6: understanding the difference
The EX designation was used for both 4-cylinder and V6 configurations, with EX-V6 identifying the 3.0-liter V6 option. If you're not sure which engine your specific car has, check the VIN, the under-hood engine badge, or the owner's manual for the exact engine code and displacement.
Summary
The 2003 Honda Accord EX most commonly came with a 2.4-liter inline-4 i-VTEC engine, while a higher-performance EX-V6 variant used a 3.0-liter V6. Knowing the exact trim and options will confirm which engine your vehicle has.