GOTOH SD91 MG-T Thumbwheel Locking Tuning Machine

GOTOH SD91 MG-T Thumbwheel Locking Tuning Machine

6 reviews Write a Review


Guitar and Bass tuning machines are sold by the side of the headstock they are mounted when viewing from the front. Left or Right side is not the same as left or right handed. Please remember this when placing your order.

  • GOTOH SD91-05M-MG-T
  • Inline tuning machines (Tuning keys all on the same side)
  • New Thumbwheel Style Magnum Lock Traditional 
  • Available in Nickel and Gold - Leftside or Rightside configurations
  • Tuning keys match body color
  • 15:1 tuning ratio
  • Includes 11/32" (8.7mm) and 9.2mm press-in bushings - *10mm conversion bushings are sold separately.
  • 1/4" (6.35 mm) diameter string posts 
  • GOTOH Magnum Lock Traditional string posts
  • Staggered height (non-adjustable) string post(see drawing)
  • Includes press-in bushings, bushing removal tool, and mounting screws

Gotoh® Vintage Style locking guitar tuners thumbwheel locking mechanism is designed for a vintage-sized(11/32”) and 9.2mm peg holes. Classic SD91 look with modern locking functionality. No drilling or modification is required when replacing vintage SD91 tuning machines. 

This is GOTOH new thumbwheel style locking tuners.  The "Magnum Lock-Trad" combines classic functionality with Gotoh technology.

6 Reviews Hide Reviews Show Reviews

  • 5
    GOTOH SD91 MG-T Thumbwheel tuners

    Posted by Excellent in look, feel and function. on Nov 18, 2019

    These are excellent. I put them on a vintage style partscaster that I wanted to retain a vintage look to the guitar. They look the part and work beautifully. No slipping or sticking. I've got another partscaster and I'll be ordering another set.

  • 5
    GOTOH locking Tuners

    Posted by Massimo Salvatore on Jul 22, 2019

    Excellent service very fast shipping great locking Tuners easy installation very happy

  • 5
    Best Vintage Locking Tuners

    Posted by Charles on Jul 6, 2019

    Purchased 2 sets for a 2003 and 2008 Highway One Texas Tele's. Perfect drop in fit and they work fantastic!

  • 5
    Gotoh locking tuners

    Posted by Alan Pachter on Jun 16, 2019

    These tuners are great. My customer loved them!

  • 5
    GOTOH SD91 MG-T Thumbwheel Locking Tuning Machine

    Posted by Tim on Jul 17, 2018

    Very well designed and functioning; well worth the modest expense. Shipment was very fast. I will definitely use similar products by GOTOH and use Philadelphia Luthier Tools and Supplies in the future.

  • 5
    Good quality.

    Posted by Max on Jun 29, 2018

    Very good replacement of standard tuners on my Fender Squier Classic Vibe 50s.
    External diameter of Gotoh bushings were slightly bigger than standard (~0.1mm). In my case it was enough using clamp to press them inside.