For your MaxxAir model 8900K, we have the Replacement Operator Mechanism for MaxxAir MaxxFan Plus or MaxxFan Deluxe Roof Vents # MA10-20281K-1AF and the Replacement Lift Arm for MaxxFan Roof Vents # MA10-20222KS. From your pictures and what you mention being broken. These are the parts that you will need to fix your 8900K fan. view full answer...
The 10B21275KE part # MA39FR replaces the 10-21275KE you mentioned as well so if you had an older model number you could use it in same application. view full answer...
I called Lippert about your question on the Replacement Motor Assembly for Lippert RV Slide-Outs - Klauber A-300 Model, # LC157511. Their Tech Rep stated that the two smaller wires are to power the brake release/engage on the slide and should be connected to the red wire, then remove and replace the motor and wiring with current. view full answer...
Based on my research your 2015 Entegra Coach Cornerstone comes equipped with a narrow king sized mattress, and more specifically with a sleep number air design like you mentioned. To replace this I highly recommend the etrailer eDream Supreme RV Mattress # e77FR, which features cool and comfy gel memory foam that conforms to your body. It's also double sided, so you have the ability to flip between plush or firm sides depending on your preference, so you are guaranteed a great night's sleep... view full answer...
Generally speaking most wouldn't recommend installing a battery in the interior of a vehicle. A lot of batteries need to vent and you having it vent in the interior where you'd be riding when driving wouldn't be safe. Best option is using the # RM-9332 to power the Blue Ox Patriot # BLU37TR. view full answer...
The correct replacement for your Klauber K01431B300 slide-out motor is the Replacement Motor Assembly for Lippert RV Slide-Outs - Klauber A-300 Model # LC157511. view full answer...