Tuner

    PRS Phase III locking tuners

    PRS's own Gotoh-made locking tuner design, built primarily for their Core-tier instruments.

    4 guitars checked: 4 needs verification.

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    Where to buy

    We haven't added a verified place to buy this one yet.

    Part specs

    Tuner hole size

    Not published

    Needs verification

    Gear ratio

    15:1 (PRS's own forum discussion states 15:1 for this version; some third-party sources list 18:1 instead, genuine ambiguity across sources)

    Confirmed

    Installation notes

    Genuinely mixed owner reports: several PRS forum threads describe successful installs reusing the stock SE bushings with no modification, while others describe needing to ream the shaft hole and drill new mounting screw holes. PRS's own parts distributor states Phase III tuners will not retrofit to any model without modification except guitars that already have them.

    Guitars we've checked

    4 guitars checked: 4 needs verification.

    PRS CE 24

    PRS

    CE 24 2023

    Needs verification

    These are genuine PRS parts, but they're built for PRS's Core-tier guitars first. Some owners get a clean fit reusing existing hardware, others need to ream holes and drill new ones. Budget for possible modification work.

    Why we say this

    Genuinely mixed owner reports across the SE/CE tier: several threads describe successful installs reusing stock bushings, others describe needing to ream the shaft hole and drill new mounting screw holes.

    Help confirm this fit

    PRS SE Custom 24

    PRS

    SE Custom 24 2023

    Needs verification
    Drilling

    These are genuine PRS parts, but they're built for PRS's Core-tier guitars first. Some owners get a clean fit reusing existing hardware, others need to ream holes and drill new ones. Budget for possible modification work.

    Why we say this

    Genuinely mixed owner reports: several threads describe successful installs reusing stock SE bushings, others describe needing to ream the shaft hole and drill new mounting screw holes.

    Help confirm this fit

    PRS SE Custom 24 Left-Handed

    PRS

    SE Custom 24 Left-Handed

    Needs verification

    These are genuine PRS parts, but fit varies. Some owners get a clean fit reusing existing hardware, others need to ream holes and drill new ones. Budget for possible modification work.

    Why we say this

    Genuinely mixed owner reports on the right-handed version of this guitar: some installs reuse the stock bushings cleanly, others need reaming and new mounting holes. This is a 3-per-side headstock, and standard 3-per-side tuner sets are not manufactured as separate left and right-handed SKUs the way 6-in-line sets are, so the same mixed-results pattern is expected to apply here regardless of handedness.

    Help confirm this fit

    PRS SE Standard 24

    PRS

    SE Standard 24 2024

    Needs verification
    Drilling

    These are genuine PRS parts, but built for PRS's Core-tier guitars first. Budget for possible reaming and drilling work if you fit them here.

    Why we say this

    Mixed owner reports across the SE line generally: some describe reusing stock bushings cleanly, others need to ream the shaft hole and drill new mounting screw holes. PRS's own parts distributor states these will not retrofit without modification except on guitars that already have them.

    Help confirm this fit

    This page has 4 open questions

    If you have fitted any of these to this Phase III locking tuners, tell us what you found and we'll update the data.