By Maytronics



Part # 3295-299

Manufacturer Code 9985050

Dimensions 12" L x 12" W x 1" D

Alternate Part #'s 9985050, 87-111-1208, DL9985050, MAY9985050

Product Description

Track, Yellow - 9985050

Single yellow track for the following Maytronics brand robotic pool cleaners:  Dolphin 2002 / Diagnostic, Dolphin Diagnostic 3001, Dolphin Advantage, Dolphin Heavy Duty, and Dolphin Interactive.


?     Asked on 1/17/2012by Guest

Does this product number include one track or both tracks needed for the cleaner?

A  Answered on 1/17/2012 by InyoPools Product Specialist Patrick P.

This product and price is for for one track only.

?     Asked on 6/21/2015by randy scoras

dolphin diagnostic track-yellow keeps going off

A  Answered on 6/21/2015 by InyoPools Product Specialist Lennox H.

Randy, You may need to replace the Pulley For Flat Shaft (3884076), make sure the tracks isn't worn or make sure the cover is on properly.

?     Asked on 7/23/2015by Sal

Is this part difficult to replace. Do you need any special tools:?

A  Answered on 7/24/2015 by InyoPools Product Specialist Lennox H.

Hi Sal, No special tool is needed. You can follow our How to replace a Dolphin Advantage Track for installation instructions.

?     Asked on 6/21/2017by Inyo Visitor

Will this work on DL2019 Dolphin Diagnostic Advantage Model serial # 112478VS66

A  Answered on 6/21/2017 by InyoPools Product Specialist Hector F.

Yes, this part will work with the Dolphin Diagnostic Advantage.

?     Asked on 7/3/2018by Inyo Visitor

will this work with dolphin diagnostic 2001?

A  Answered on 7/3/2018 by InyoPools Product Specialist Lennox H.

Hi. Yes, this Yellow Track - 9985050-R2 will work with the Dolphin Diagnostic 2001. 


Est. Repair Time

Less than 1 hr

Tools Needed


2     0

The tracks of my Dolphin IV pool cleaner were coming off drive sprockets.

Written on 11/1/2016 by Guest

Purchased new tracks from Inyopools.com. Inyo provided detailed written and video installation procedures, making installation a breeze. Inyopools provides a wide variety of detailed repair and installation procedures in support of "do-it-your-selfers."

Were these instructions helpful? 


Review Summary

 (Average 4.28  out of 5 stars)
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