£152.38

Graphtech PRL-8521-B7 Ratio Electric Locking Machine Heads

Black, PRL-8521-B7

Price data last checked 111 day(s) ago - refreshing...

View at Amazon

We'll watch every seller, every day. One email when your price arrives.

About as cheap as it gets. The only time it was cheaper was 1 year ago.

£152 today · all-time low £152 (May 2025) · usually the usual

NEW HERE?

Amazon shows you one price. We show you all of them.

Tosheroon watches Amazon prices so you don't have to. Every product on Amazon has a price history — we make it visible. Set the price you'd actually pay, and we'll email you the second it gets there. No app, no account, one email.

WHAT'S ON THIS PAGE

↓ Price chart
when this has been cheap or pricey
↓ Forecast
where the price is heading next
↓ Statistics
all-time high & low, recent range
↑ Price alert
name your number, we'll email you

Price History & Forecast

Grey patches = out of stock. Cheaper = lower on the chart. Hover for exact prices.

Last 620 days • 620 data points (No recent data available)

Historical
Generating forecast...
£189.15 £148.62 £157.46 £166.30 £175.15 £183.99 £192.84 08 June 2024 09 November 2024 13 April 2025 15 September 2025 17 February 2026

Price Distribution

Price distribution over 620 days • 5 price ranges

Days at Price
Current Price
188 days · current 6 days 303 days 95 days 28 days 0 76 152 227 303 £152-160 £160-167 £167-174 £174-182 £182-189 Days at Price

Price Analysis

Most common range: £167-174 (303 days, 48.9%)

Price range: £152 - £189

Price levels: 5 price ranges over 620 days

Key Features

GRAPHTECH RATIO ELECTRIC LOCKING 4+3 MINI CONTEMPORARY - BLACK

Product Specifications

Colour
Black
Domain
Amazon UK
Listed Since
05 July 2021

Barcode

No barcode data available

Similar Products You Might Like

GraphTech Ratio Electric Locking 6 In-Line Classic 2 Pin Black
96% match

GraphTech Ratio Electric Locking 6 In-Line Classic 2 Pin Black

GRAPH TECH GUITAR LABS

£154.99 09 Feb 2026
GraphTech Ratio Electric Locking 3+3 Contemporary 2 Pin Black
95% match

GraphTech Ratio Electric Locking 3+3 Contemporary 2 Pin Black

GRAPH TECH GUITAR LABS

£141.53 10 Feb 2026
Graphtech PRN-4624-N0 Ratio Electric Guitar Machine Heads
95% match

Graphtech PRN-4624-N0 Ratio Electric Guitar Machine Heads

GRAPH TECH GUITAR LABS

£178.29 20 Feb 2026
GraphTech Ratio Electric Locking 3+3 Contemporary 2 Pin Chrome
95% match

GraphTech Ratio Electric Locking 3+3 Contemporary 2 Pin Chrome

GRAPH TECH GUITAR LABS

£142.87 10 Feb 2026
PRN-2341-C0 : Ratio Tuned Machine Heads - Electric 3+3 Vintage Chrome 2 Pin
95% match

PRN-2341-C0 : Ratio Tuned Machine Heads - Electric 3+3 Vintage Chrome 2 Pin

Ratio

£75.77 15 Feb 2026
Ortega OTMLOCK6L-CR Locking Guitar Machine Heads Set 6 in Line Chrome
95% match

Ortega OTMLOCK6L-CR Locking Guitar Machine Heads Set 6 in Line Chrome

Ortega Guitars

£45.90 10 Feb 2026
Graph Tech Ratio 3x2 5-String Bass Tuners, Y-Key - BLACK, PRB-5320-B0
94% match

Graph Tech Ratio 3x2 5-String Bass Tuners, Y-Key - BLACK, PRB-5320-B0

GRAPH TECH GUITAR LABS

£120.91 18 Feb 2026
DIE HARD DHPMS55
94% match

DIE HARD DHPMS55

PROEL

£59.71 23 Jan 2026
Grover 205E Mini Mechanical Head Ebony
94% match

Grover 205E Mini Mechanical Head Ebony

Grover

£50.86 14 Feb 2026
BG France L40
94% match

BG France L40

BG

£134.00 20 Apr 2026
DIMARZIO 200516 DP 151BK PAF PRO HUMBUCKER
94% match

DIMARZIO 200516 DP 151BK PAF PRO HUMBUCKER

DiMarzio

£94.99 22 Feb 2026
LAKA MAPLE SERIES ELECTRO UKULELE & BAG - SOPRANO
94% match

LAKA MAPLE SERIES ELECTRO UKULELE & BAG - SOPRANO

VINTAGE

£100.93 18 Feb 2026
Guild Black Chrome Finish Capo - Ebony Inked w/V Block Fingerboard Marker
94% match

Guild Black Chrome Finish Capo - Ebony Inked w/V Block Fingerboard Marker

Thalia

£76.50 15 Feb 2026
Gibraltar Rack System Road Series Mini T-Foot SC-GRSQCMTLA
94% match

Gibraltar Rack System Road Series Mini T-Foot SC-GRSQCMTLA

Gibraltar

£84.99 08 Feb 2026
Grover Vintage Locking Keystone Machineheads - 3+3 Gold
94% match

Grover Vintage Locking Keystone Machineheads - 3+3 Gold

Grover

£116.86 26 Feb 2026
Grover V98G Vertical Mechanics Head
94% match

Grover V98G Vertical Mechanics Head

Grover

£61.39 10 Dec 2025
Gibraltar Rack System Road Series Mini T-Foot SC-GRSMTLA
94% match

Gibraltar Rack System Road Series Mini T-Foot SC-GRSMTLA

Gibraltar

£53.00 08 Feb 2026
Grover Super Rotomatics Machineheads ~ 3+3 ~ Chrome
94% match

Grover Super Rotomatics Machineheads ~ 3+3 ~ Chrome

Grover

Out of Stock 07 Feb 2026
Graphtech Ratio Electric 6 Inline R/H Classic 2 Pin - Gold
94% match

Graphtech Ratio Electric 6 Inline R/H Classic 2 Pin - Gold

GRAPH TECH GUITAR LABS

£134.86 14 Feb 2026
Adam Hall 19" Parts 87610-19" Rack Door 27 cm height
94% match

Adam Hall 19" Parts 87610-19" Rack Door 27 cm height

Adam Hall

£64.36 18 Feb 2026
Quik Lok A/516 BK EU
94% match

Quik Lok A/516 BK EU

Quik-Lok

£69.29 16 Feb 2026
Guild Black Chrome Finish Capo - Koa w/G Shield
94% match

Guild Black Chrome Finish Capo - Koa w/G Shield

Thalia

£76.41 26 Mar 2026
Proel Foabsr6U 19'' Rack Equipment Case
94% match

Proel Foabsr6U 19'' Rack Equipment Case

PROEL

£150.41 12 Feb 2026
Gibraltar Rack System Chrome Series Curved Rack Pack GCS375 chrome, front rack, two curved side extensions
94% match

Gibraltar Rack System Chrome Series Curved Rack Pack GCS375 chrome, front rack, two curved side extensions

Gibraltar

£449.00 14 Feb 2026