The 9033 Steel Bobbin is a precision-manufactured sewing component designed for a wide range of Pfaff industrial and artisan machines, including the legendary Pfaff 138 zigzag and the high-speed Pfaff 463 lockstitch series. Produced by Seki (Japan), these bobbins are engineered to the highest global standards for rotational balance and durability.

Unlike standard budget bobbins, the Seki-manufactured 9033 features a reinforced steel core and perfectly parallel flanges to ensure consistent thread tension from the beginning to the end of the bobbin.

Key Features & Performance
Seki Japanese Precision: Manufactured in Japan, these bobbins offer superior concentricity. This means they rotate perfectly on the bobbin winder and inside the hook, reducing machine vibration at high speeds.

Hardened Steel Construction: Crafted from high-tensile steel with a corrosion-resistant finish. These bobbins will not warp or "crush" under the high pressure of tightly wound synthetic threads.

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.