Based on this product's specifications, here are some alternatives and similar models
Car speaker JVC CS-J420X round 2-way 10 cm woofer, 2.5 cm neodymium tweeter, 210 W peak, 21 W rated, 4 Ω impedance
Summary description:
JVC CS-J420X is a round 2-way car speaker with a 10 cm woofer and 2.5 cm neodymium tweeter. Rated power is 21 W with 210 W peak, impedance 4 Ω and frequency range 45–22,000 Hz. Woofer uses a ferrite magnet (74 g magnet weight for the tweeter), mounting depth 4.31 cm and sound pressure up to 90 dB. No amplifier or subwoofer included. Do not open housing.