Forum Discussion

Ro646a's avatar
Ro646a
Explorer II
Apr 25, 2014

Changing Serpentine Belt with Rear Radiator KSDP

Can anyone tell me whether the serpentine belt on my rear radiator KSDP is typically installed from the top or the bottom? If it is done from the bottom, can it be done while laying under the motor home, or does it require a pit or a hoist to do the job? I have a Freightliner chassis.
Class A

1 Reply

  • wolfe10's avatar
    wolfe10
    Explorer
    Apr 25, 2014
    Most likely, you will need access from both top and bottom. Really depends on how much access you have from the top. If full access, you can do all of the serpentine belt from above.

    BUT, with the Caterpillar 3126, you also have a separate V belt that only turns the water pump. If replacing belts, be sure to do that one as well-- from any Caterpillar dealer. It is only serviced from below and has a standard adjustable tensioner, not automatic tensioner like the serpentine belt. This belt and its tension is an often overlooked item.

About Motorhome Group

38,766 PostsLatest Activity: Jan 10, 2026