If the MPV LX has the "4 seasons" package it will have a second heater and rear climate controls. This may not be true for all model years, but I think it is for 2002-06 models.
2001 Mazda MPV does not have a timing belt, it has two timing chains.
If it has rear heat it has two heater cores. One in the front and one in the back.
it is a two wheel
No, a 2004 Mazda MPV motor will not directly fit into a 2004 Mazda 6. The two vehicles have different engine designs and configurations, and their mount points and transmission compatibility differ. Additionally, the MPV is a minivan, while the Mazda 6 is a sedan, leading to further complications in installation and integration. It’s best to use an engine that is specifically designed for the Mazda 6.
The 2003 Chevrolet Trailblazers has two heater cores. One operates the front area of the vehicle while the other heats the rear of the vehicle.
In the 1993 Pontiac Transport Van, the two heater cores are interchangeable. To install one heater core in another position, longer hoses might be necessary to reach the necessary hose positions and new holes might need to be drilled.
top left side of dash board, two relays
If your van is equipped with the rear climate control heating/cooling option, then YES, there are two heater cores.See "Related Questions" below for more
Three - two front off each manifold and one in the exhaust pipe.
The '01 Mazda MPV with the 2.5 Liter engine actually has two timing chains, one for each side of the V6 engine. This engine has 2 overhead cams on each side of the engine (DOHC) controlled by the 2 chains.
The 2002 Mazda MPV has two flex pipes that comes from manifold. One of these flex pipes comes with the catalytic converter. I had it changed at Speedy and it cost around $800.00 cost, labour,taxes incl.
If equipped with rear heat it has two. IF front only, one.