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    Tuner

    Kluson SD90SLN 3-Per-Side Tuners (Nickel)

    Kluson's vintage-bushing tuner, built on the traditional 3-per-side layout with a press-in vintage-diameter post.

    13 guitars checked: 4 needs verification, 5 requires modification, 4 not compatible.

    For your Epiphone Casino (2023+)

    Needs verification

    Should fit if your Casino has vintage-size tuner holes, which older ones do. We have not confirmed the hole size on 2023 and later models, so check yours (about 8.5mm) before buying.

    See the full notes below
    Tuner illustrationIllustration, photo coming soon

    Where to buy

    Amazon

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    Part specs

    Tuner hole size

    Not published

    Needs verification

    Gear ratio

    15:1

    Confirmed

    Guitars we've checked

    13 guitars checked: 4 needs verification, 5 requires modification, 4 not compatible.

    Epiphone Casino

    Epiphone

    Casino 2020

    Needs verification

    A vintage-style 3+3 set, but the fit on the Casino isn't confirmed. Epiphone don't publish the tuner hole size, so measure yours first.

    Why we say this

    This set is sold as Kluson SD90SLN, with 1/4 inch posts and 3/8 inch bushings; SD90-SL-N is also a Gotoh part code, so its exact make isn't settled. Epiphone list Epiphone Deluxe tuners on the Casino and don't publish the hole size. The only figure we have is one owner's measurement of about 8.3 to 8.4mm on a 2021 Casino Coupe, which is a different model. Measure your tuner holes before buying.

    Epiphone Casino (2023+)

    Epiphone

    Casino (2023+) 2023

    Needs verification

    Should fit if your Casino has vintage-size tuner holes, which older ones do. We have not confirmed the hole size on 2023 and later models, so check yours (about 8.5mm) before buying.

    Why we say this

    Retailers list this vintage-style Kluson set as a fit for the Epiphone Casino, but those listings do not specify the 2023 revision. One owner measured the tuner holes at about 8.3 to 8.4mm on a 2021 Casino Coupe, and no 2023 or later Casino has been measured. If the holes are vintage size this should fit without drilling. If they are a modern 10mm, adapter bushings would be needed. Not confirmed either way.

    Gibson Les Paul Standard '50s

    Gibson

    Les Paul Standard '50s 2023

    Needs verification

    A vintage-style set for 11/32 inch (about 8.7mm) holes. Gibson fit Vintage Deluxe tuners to this guitar but don't publish the hole size, so it may match or may be larger. Measure one before buying.

    Why we say this

    Kluson build this vintage-style set for 11/32 inch push-in bushing holes. Gibson list this guitar with Vintage Deluxe tuners with keystone buttons and don't publish the hole size. Gibson's Deluxe-style tuners come in both push-in and screw-in bushing versions, so the holes may match this set or may be larger. Measure a tuner hole before buying.

    Gibson SG Standard 61

    Gibson

    SG Standard 61 2023

    Needs verification

    A vintage-style set for 11/32 inch (about 8.7mm) holes. Gibson fit Vintage Deluxe tuners to this guitar but don't publish the hole size, so it may match or may be larger. Measure one before buying.

    Why we say this

    Kluson build this vintage-style set for 11/32 inch push-in bushing holes. Gibson list this guitar with Vintage Deluxe tuners with keystone buttons and don't publish the hole size. Gibson's Deluxe-style tuners come in both push-in and screw-in bushing versions, so the holes may match this set or may be larger. Measure a tuner hole before buying.

    Epiphone Flying V 70s

    Epiphone

    Flying V 70s

    Requires modification

    These are built for smaller vintage-style tuner holes. This guitar ships with Grover Rotomatics in modern 10mm holes, so these would need conversion bushings to sit properly, not a straight swap.

    Why we say this

    The stock tuners on this guitar are Grover Rotomatics, which mount in modern 10mm bushing holes. The Kluson SD90SLN is a vintage-style tuner built for the smaller press-in bushing holes of vintage-spec guitars, so fitting it here needs conversion bushings to take up the larger hole.

    ESP LTD EC-1000

    ESP

    LTD EC-1000 2023

    Requires modification

    This guitar's tuner holes are the modern larger size, not the smaller vintage size this tuner is built for. It will sit loose without an adapter.

    Why we say this

    Guitar's tuner holes are reported at 10mm (Guitar Chalk dimensions article), not the vintage-style 8.8mm press-fit holes this Kluson product is built for. Would sit loose without a bushing adapter, not a straightforward swap.

    Gibson Les Paul Classic

    Gibson

    Les Paul Classic 2023

    Requires modification
    Drilling

    These are sized for smaller, vintage-style tuner holes. This guitar's holes are the larger modern size, so a bushing adapter is needed for a solid fit, not a straight swap.

    Why we say this

    This guitar's tuner holes are normally 10mm, the modern size, not the smaller 8.5mm vintage bore these Klusons are built for. Installing a smaller-post vintage tuner into a larger modern hole leaves it loose without a bushing adapter to take up the gap.

    Gibson Les Paul Standard 60s

    Gibson

    Les Paul Standard 60s 2023

    Requires modification

    This guitar's tuner holes are the larger modern size, not the smaller vintage size this tuner is built for. It will sit loose without an adapter, not a straightforward swap.

    Why we say this

    The 60s reissue specifically ships with modern Grover-style 10mm tuner holes with screw-in bushings, not the vintage-style 8.8mm press-fit holes this product is built for. A vintage-post tuner in an oversized 10mm hole would sit loose rather than seat properly, the reverse of the usual vintage-to-modern reaming problem, and needs a bushing adapter or hole-filling rather than being a simple swap.

    Gibson SG Standard

    Gibson

    SG Standard 2023

    Requires modification
    Drilling

    These are sized for smaller, vintage-style tuner holes. This guitar's holes are the larger modern size, so a bushing adapter is needed for a solid fit, not a straight swap.

    Why we say this

    This guitar's tuner holes are normally 10mm, the modern size, not the smaller 8.5mm vintage bore these Klusons are built for. Installing a smaller-post vintage tuner into a larger modern hole leaves it loose without a bushing adapter.

    Not compatible

    Fender

    Vintera '70s Telecaster Custom 2019

    This is a three-a-side set, and this guitar has all six tuners in a line on one side of the headstock, so the layout is wrong.

    Why we say this

    The Kluson SD90SLN set is arranged three per side for Gibson-style headstocks. This guitar has a Fender-style 6-in-line headstock, so a 3+3 set cannot fit regardless of hole size. The Kluson Deluxe 6-in-line set matches both the layout and the vintage hole size.

    Not compatible
    Fender Vintera II '50s Nocaster

    Fender

    Vintera II '50s Nocaster 2023

    This is a three-a-side set, and this guitar has all six tuners in a line on one side of the headstock, so the layout is wrong. The Kluson Deluxe 6-in-line set is the matching vintage-style option.

    Why we say this

    The Kluson SD90SLN set is arranged three per side for Gibson-style headstocks. This guitar has a Fender-style 6-in-line headstock, so a 3+3 set cannot fit regardless of hole size. The Kluson Deluxe 6-in-line set matches both the layout and the vintage hole size.

    What fits instead

    Not compatible

    Squier

    Classic Vibe 50s Telecaster 2020

    This is a three-a-side set, and this guitar has all six tuners in a line on one side of the headstock, so the layout is wrong. The Kluson Deluxe 6-in-line set is the matching vintage-style option.

    Why we say this

    The Kluson SD90SLN set is arranged three per side for Gibson-style headstocks. This guitar has a Fender-style 6-in-line headstock, so a 3+3 set cannot fit regardless of hole size. The Kluson Deluxe 6-in-line set matches both the layout and the vintage hole size.

    What fits instead

    Not compatible

    Squier

    Classic Vibe 60s Stratocaster 2020

    This is a three-a-side set, and this guitar has all six tuners in a line on one side of the headstock, so the layout is wrong. The Kluson Deluxe 6-in-line set is the matching vintage-style option.

    Why we say this

    The Kluson SD90SLN set is arranged three per side for Gibson-style headstocks. This guitar has a Fender-style 6-in-line headstock, so a 3+3 set cannot fit regardless of hole size. The Kluson Deluxe 6-in-line set matches both the layout and the vintage hole size.

    What fits instead

    This page has 9 open questions

    If you have fitted any of these to this Kluson SD90SLN 3-Per-Side Tuners (Nickel), tell us what you found and we'll update the data.