Engine serial number


MR20DE

QR25DE
QR25DE

The number is stamped on the engine as shown.

    See also:

    Vacuum assisted brakes
    The brake booster aids braking by using engine vacuum. If the engine stops, you can stop the vehicle by depressing the brake pedal. However, greater foot pressure on the brake pedal will be re ...

    Cargo & Towing
    The Altima's trunk measures 15.3 cubic feet, which is average for the class, but it shrinks to 13.1 cubic feet with the full-size spare tire that's included with the optional stability system. (St ...

    Heated steering wheel (if so equipped)
    The heated steering wheel system is designed to operate only when the surface temperature of the steering wheel is below 68°F (20°C). Push the heated steering wheel switch to warm the steer ...