Roland RK-300
Released in 2008The RK-300 is an 88-note digital piano with 128-voice polyphony.

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We stock both NEW and USED parts; all used electronic parts are tested and guaranteed working.
This listing reflects our current inventory and is updated in real time. If a part is shown as Out of Stock, we typically don't know when or if we might have it again - but click on the part for more info, and then you will be able to sign up for an alert when we do have it available again. By including out of stock parts in our listings, we hope to offer customers a more complete and useful resource.
We cannot diagnose repair issues by phone or email. For technical questions, we suggest posting on our Forums, where our techs - as well as other users - can offer help.

Replacement Keys

Display, LCD, Roland
$199.95 (Part #1237)
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$199.95 (Part #1237)

Hammer weight, Style 1, Roland
$7.95 (Part #2735)
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$7.95 (Part #2735)

Hammer weight, Style 2, Roland
$7.95 (Part #2736)
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$7.95 (Part #2736)

Hammer weight, Style 3, Roland
$7.95 (Part #2737)
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$7.95 (Part #2737)

Hammer weight, Style 4, Roland
$7.95 (Part #2738)
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$7.95 (Part #2738)

Key guide, black note
$0.45 (Part #5042)
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$0.45 (Part #5042)

Keybed sub-chassis, 12-note, Roland
$26.95 (Part #5254)
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$26.95 (Part #5254)

Keybed sub-chassis, 4-note, Roland
$18.95 (Part #4455)
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$18.95 (Part #4455)

Knob, Roland
$9.95 (Part #4761)
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$9.95 (Part #4761)

Phone jack, 1/4-inch, 3-pin PCB mount
For Mic inputs
$7.95 (Part #4334)
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For Mic inputs
$7.95 (Part #4334)

Phone jack, 1/4-inch, 3-pin PCB mount
For Mic inputs
$7.95 (Part #4334)
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For Mic inputs
$7.95 (Part #4334)

Phone jack, 1/4-inch, 7-pin PCB mount
For Control pedal, Phones
$7.95 (Part #3634)
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For Control pedal, Phones
$7.95 (Part #3634)

Potentiometer, 50KB rotary
For Volume, Vocal pots
$6.95 (Part #5174)
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For Volume, Vocal pots
$6.95 (Part #5174)

Power cord
$7.95 (Part #PC)
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$7.95 (Part #PC)

Pushbutton tact switch, 5mm, 2-pin
$1.95 (Part #4478)
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$1.95 (Part #4478)

Pushbutton tact switches, 5mm, pkg of 10
$11.95 (Part #4478X)
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$11.95 (Part #4478X)

Style 13U key, black note
$9.95 (Part #K13UBL)
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$9.95 (Part #K13UBL)

Style 13U key, bottom A note
$15.95 (Part #K13UAB)
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$15.95 (Part #K13UAB)

Style 13U key, note A
$10.95 (Part #K13UA)
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$10.95 (Part #K13UA)

Style 13U key, note B
$10.95 (Part #K13UB)
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$10.95 (Part #K13UB)

Style 13U key, note C
$10.95 (Part #K13UC)
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$10.95 (Part #K13UC)

Style 13U key, note D
$10.95 (Part #K13UD)
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$10.95 (Part #K13UD)

Style 13U key, note E
$10.95 (Part #K13UE)
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$10.95 (Part #K13UE)

Style 13U key, note F
$10.95 (Part #K13UF)
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$10.95 (Part #K13UF)

Style 13U key, note G
$10.95 (Part #K13UG)
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$10.95 (Part #K13UG)

Style 13U key, top C note
$15.95 (Part #K13UC8)
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$15.95 (Part #K13UC8)

USB connector
$6.95 (Part #3487)
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$6.95 (Part #3487)