
























Guyker GK-D-434SP Locking Tuners Dopamine Color No-Screw 1:18 for Guitar
SKU:GK-D-434SP-red-gold-red-6R
PRODUCT DESCRIPTION
Upgrade your guitar with Guyker GK-D-434SP locking guitar tuners designed with a no-screw mounting structure, smooth 1:18 tuning control, and bold Dopamine color options. This tuner set is available in 6R, 6L, and 3R+3L layouts for compatible guitar replacement, upgrade, and custom build projects where the peg hole size, mounting structure, and dimensions match the size chart.
Key Features
- Locking tuner design: Helps make restringing faster and supports a more secure string hold during regular playing.
- No-screw mounting structure: Offers a cleaner installation style for compatible headstocks with matching mounting pin placement.
- 1:18 gear ratio: Provides smooth and precise tuning adjustment for setup work, recording, and everyday playing.
- Durable mixed-material construction: Built with sealed die-cast zinc alloy housing and buttons, iron worm gears, and brass shafts and gears.
- Multiple layout options: Available in 6R, 6L, and 3R+3L options depending on the selected variant.
- Fitment reminder: Please verify your peg hole size, headstock layout, mounting structure, post diameter, string thru hole height, and mounting pin position before ordering.
Technical Specifications
| SKU / Model | GK-D-434SP |
| Product Type | Locking Guitar Tuners / Guitar Machine Heads |
| Suitable For | Guitars with matching 10 mm hole size, mounting structure, and tuner layout |
| Layout Options | 6R, 6L, 3R+3L |
| Gear Ratio | 1:18 |
| Peg Hole Requirement | 10 mm |
| String Post Diameter | 6 mm |
| String Post Overall Height | 26.2 mm |
| String Thru Hole Center Height | 22.7 mm |
| Max. String Gauge | 1.8 mm |
| Mounting Pin to Post Center | 11.7 mm |
| Bushing Type | Screw-in hex head |
| Weight per pc / per set | 35 g / 216 g |
| Material | Sealed die-cast zinc alloy housing and buttons, iron worm gears, brass shafts and gears |
| No-Screw Mounting | Yes; mounting pin structure must match the guitar headstock |
| Finish / Color Options | Chrome, Gold, Red + Gold + Red Button, Blue + Gold + Blue Button, Black + Gold + Gold Button, Purple+Gold, Blue + Purple + Blue Button, Black, Customize, Chrome+Pearl Button, Gold+Pearl Button |
| Package Includes | 6 x locking guitar tuners, 6 x threaded bushings, 6 x ferrules, 6 x mounting screws |
Compatibility Notes
Important: This tuner set is suitable for guitars with matching 10 mm peg hole size, mounting structure, and layout. Please select the correct 6R, 6L, or 3R+3L version for your instrument. It is not suitable for guitars that do not match the required installation structure. Always compare the size chart with your original tuners before ordering, especially the post diameter, string thru hole height, bushing size, and mounting pin position.
Package Includes
- Package quantity follows the selected layout option.
- 6R option: 6 x right-side locking guitar tuners with matching bushings, ferrules, and mounting hardware
- 6L option: 6 x left-side locking guitar tuners with matching bushings, ferrules, and mounting hardware
- 3R+3L option: 3 x right-side locking guitar tuners and 3 x left-side locking guitar tuners with matching bushings, ferrules, and mounting hardware
Installation Note
Before installation: Do not force the tuner posts or bushings into incompatible headstock holes. Confirm that the no-screw mounting pin position and tuner layout match your headstock before installation.
Video Show
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Size Reference
Important: Please refer to the size chart below and compare all dimensions with your original part before ordering.

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FAQS
Do you class a reverse headstock guitar as a left hand guitar?
How do I determine the right size/fit for a specific accessory?
Can you provide more details about the materials used in your products?
At Guyker, we prioritize the use of high-quality materials to ensure the durability and performance of our products. While the specific materials used may vary depending on the accessory, we commonly utilize materials such as:
■ Metals: We often use materials like stainless steel, aluminum, and brass for hardware, bridges, and other metal components.
■ Plastics: Certain accessories may incorporate durable and impact-resistant plastics such as ABS or polycarbonate for knobs, pickguards, and other components.
■ Woods: Some accessories, like guitar knobs or picks, may be made from various types of wood, including rosewood, ebony, or maple.
For more detailed information about the materials used in a specific product, we recommend reviewing the product descriptions or reaching out to our customer support team at [support@guyker.com] for further clarification.
Do you offer international shipping?
Yes, we offer international shipping to customers worldwide. When placing your order, please ensure that you provide accurate international shipping information, including your complete address and contact details.
Please note that international shipping may be subject to customs duties, taxes, and additional fees imposed by the destination country. These charges are the responsibility of the recipient and may vary depending on the country's customs policies.
What is your process for returning or exchanging a product?
To initiate a return or exchange, please follow these steps:
■ Contact our customer support team at [support@guyker.com] or visit our website's Returns/Exchanges page.
■ Provide your order details and the reason for the return or exchange.
■ Our customer support team will guide you through the process and provide you with a return/exchange authorization if applicable.
■ Follow the instructions provided, including packaging the product securely and attaching the necessary labels or documentation.
■ Ship the product back to us using a traceable and insured shipping method.
■ Once we receive the returned product and verify its condition, we will process the return or exchange accordingly.
Can I return or exchange a product if it's been used?
In most cases, products that have been used or show signs of wear may not be eligible for return or exchange unless there is a defect or error on our part. We recommend reviewing our specific return/exchange policy or contacting our customer support team at [support@guyker.com] to determine the eligibility of your particular product.
Do I need to cover the return shipping costs?
The responsibility for return shipping costs may vary depending on the reason for the return or exchange. In some cases, such as if the product is defective or if we made an error, we will provide a prepaid shipping label or reimburse your return shipping costs. However, if the return or exchange is due to a change of mind or a non-defective product, you may be responsible for the return shipping costs. We recommend reviewing our return/exchange policy or contacting our customer support team at [support@guyker.com] for specific details regarding return shipping costs.

Guyker GK-D-434SP Locking Tuners Dopamine Color No-Screw 1:18 for Guitar
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