Celestron Motor Assembly - AZM/RA for the NexStar 4/5Se series telescopes only. New model 1B (replaces model 1A which has been discontinued). Manufacturer part number: SLT-F00-1B.

Note: All sales of special order parts are final. In case of problems or support needed after purchase, please contact Celestron directly for support for these products: celestronsupport@celestron.com