These are brand new VFORCE 3 reed cages for the models listed in the title. This cage fits the Ski-Doo MX Z 440/ 500/ 600 99-04. This is the new updated reed valve system. This is the vforce part # V3120-794A-2. I used the catalog picture for my listing, the correct cages will be sent for the listed models. This kit will include 2 cages, one for each cylinder.  

Advanced composite technology, carbon fiber lay up and resin system.

Redesigned reed stops eliminates need for retaining screws.

Airfoil technology increases velocity of fuel/air mixture for optimum fuel atomization.

Symmetrical petals.

Super quick petal changes (screw free).

Custom air guides for maximum air flow. Free shipping is in the U.S only.