OEM Position Lever Thumb Stud (Part #541403). Specifically engineered for the Singer 20U series, this authentic component is vital for the smooth and accurate operation of your machine's position lever assembly.

By choosing a part, you ensure that the threading, dimensions, and material strength perfectly match the original engineering standards. This guarantees a secure fit and prevents the mechanical "play" often found with generic alternatives.

Key Features & Benefits
Authentic OEM Part: A Singer component designed for a 100% perfect fit and long-term reliability.

Precision Threading: Manufactured to exact tolerances to ensure it seats perfectly within the lever assembly, preventing loosening during high-speed operation.

Ergonomic Grip: Features the original factory knurling/texture for effortless manual adjustments, even during long sewing sessions.

Hardened Construction: Built from high-grade industrial steel to resist wear, stripping, and corrosion on the production floor.

Orders are typically processed within 1–3 business days.

We ship from our Georgia, USA warehouse. If an item is temporarily unavailable in the U.S., we source it through our global supplier network and will notify you of the estimated lead time.

Free shipping is available on U.S. orders over $99.

Once your order ships, you will receive a tracking number by email.

For urgent orders or shipping questions, please contact us before placing your order.

We stand behind the quality of the products we sell.

• Genuine OEM parts are covered by the manufacturer's warranty where applicable.

• Aftermarket and generic parts are covered against manufacturing defects.

• If you receive a damaged, defective, or incorrect item, please contact us within 30 days of delivery.

• Warranty does not cover damage caused by improper installation, misuse, normal wear, or modifications.

If you have any questions, our support team is happy to help before or after your purchase.