9985006-r2 Track and Climbing Rings 6101611-r4 Replacement Parts Compatible with Maytronics Dolphin Nautilus cc Plus Robotic Pool Robot (6 Pack)

I have a maytronics dolphin nautilus from 2015. I needed to replace the belts, climbing rigs, and the ball bearing gears. The parts were exactly correct and a great price. It took me about 1hr to do the work. I only needed a philips head scew driver and a flat head screw driver. Works like new. Tip: When you put the belt on place it over the rollers, the main drive gear, and 1 ball bearing gear. Then slip the 2nd ball bearing gear on the shaft and under the belt. The belt is tight and this was the easiest way to do it.

The treads and climbing rings on the Dolphin need to be replaced routinely... if you dont change them, your liner or pool can be damaged and the cleaner cannot efficiently climb walls if they wear down. This kit is really nice as it is exactly what you need. Recommend you use pool grease to lube the gears and axles while you have your cleaner disassembled.

After 3 years of using my Dolphin M400 in my micro pebble pool, I noticed it not quite making it up the walls each time or not moving. Based on the troubleshooting list sent to me by Maytronics - I ordered this pack from Amazon since it was a fraction of cost. It fit the robot, the foam rollers are definitely the easier part of the install, the tracks are a pain to get aligned correctly but fit correctly - not overly tight and the inner belt matches the gears correctly. The tracks are rubber and soft versus the old track that was hardened.

IT is very simple. I have the Dolphin Nautilus cc Plus and attempted to install but tracks are just a little bit too small. Caused too much pulling down tension on the drive wheel. Pulls in downward. If it was just a 1/8 inch or 1/4 in longer would work fine, I think for the Dolphin Nautilus cc Plus. If you have this model DO NOT BUY! Probably works fine for other models but not the Dolphin Nautilus cc Plus.

I was so happy to receive the belt belt and climbing rings for my Maytronics Dolphin Sigma robotic machine. AT first when I took it out of the box, wasn't sure I had the correct parts. But Wow, they were. The climbing rings were larger and thicker than the originals, and the robotic machine climbs walls and performs better! After finding a Youtube video on installation, the instructions were relatively easy. Once exception, it takes quite a bit of strength to stretch the new belt out to get the roller wheels back on the machine. But overall, AAA++++. I would have spent hundreds of dollars sending it to a service center or taking it to a pool store to have the machine serviced. Great vendor too! Fast shipping! Thanks so much!! AAAA++++!!!

So far so good

It was easy to put to together with help of the video.

We have a Dolphin Endeavor and it's listed in the picture as compatible but belts or tracks are not the correct sizes. The white donut wheels did work though. I would've returned it but we needed the donuts badly.

Exact match