








GK150BKGD Headstock Sealed Bass Tuners Machine Heads
SKU:GK150BKGD-4r
PRODUCT DESCRIPTION
Upgrade your bass tuning hardware with Guyker GK150BKGD Black Gold 1:17 sealed bass tuners. Designed for bass machine head replacement and hardware upgrade projects, these sealed bass tuners feature a black and gold finish with multiple packaging options for different bass headstock layouts.
Key Features
- Sealed bass tuner design: Designed for bass tuning machine replacement and hardware upgrade projects.
- 1:17 gear ratio: Provides smooth tuning adjustment for bass setup and performance use.
- Black Gold finish: Adds a bold black-and-gold hardware accent to your bass headstock.
- Multiple packaging options: Available in 4R, 4L, 2R+2L, 1R, and 1L configurations for different bass headstock layouts.
- Screw-in hex head bushing: Designed with a screw-in hex head bushing structure for secure installation.
- Fitment reminder: Please confirm your peg hole size, tuner layout, string post requirements, and mounting specifications before ordering.
- Important note: This product does not fit a Fender Squire Precision Bass.
Product Details
| SKU / Model | GK150BKGD |
| Product Type | Bass Tuners |
| Tuner Type | Sealed Bass Tuners / Bass Machine Heads |
| Gear Ratio | 1:17 |
| Peg Hole Requirement | 13.7 mm |
| String Post Overall Height | 23.8 mm |
| String Post Diameter | 8.7 mm |
| Max String Gauge | 1.8 mm |
| String Thru Hole Center Height | 31.3 mm |
| Bushing Type | Screw-in Hex Head |
| Weight | 52 g per pc / 208 g per set |
| Color / Finish | Black & Gold |
| Packaging Options | 4R, 4L, 2R+2L, 1R, 1L |
Compatibility Notes
Important: Please confirm your bass peg hole size, tuner layout, string post requirements, bushing type, headstock side, and mounting specifications before ordering. Bass tuner fitment may vary by headstock design and mounting hole pattern.
Fitment warning: This product does not fit a Fender Squire Precision Bass.
Installation Note
Before installation: Professional installation is recommended. Always compare the new sealed bass tuners with your original machine heads before drilling, tightening, or mounting.
VIDEO
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.

GK150BKGD Headstock Sealed Bass Tuners Machine Heads
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
-
Shipping Information
Use this text to answer questions in as much detail as possible for your customers.
-
Customer Support
Use this text to answer questions in as much detail as possible for your customers.
-
FAQ’s
Use this text to answer questions in as much detail as possible for your customers.
-
Contact Us
Use this text to answer questions in as much detail as possible for your customers.

4 interest-free payments.