Large Spool Cap – Part #413051603 | Pfaff & Husqvarna Viking OEM

Ensure smooth, consistent thread delivery with this genuine large spool cap (Part #413051603), designed for both Pfaff and Husqvarna Viking sewing and embroidery machines.

This large spool cap stabilizes bigger thread spools on horizontal spool pins, preventing wobble, tangling, and uneven thread feed. It plays a critical role in maintaining proper thread tension and stitch consistency, especially when sewing at higher speeds or using large cones and specialty threads.

Key Features:

• ✔️ Genuine OEM Pfaff & Husqvarna Viking part
• ✔️ Large size (45mm) – ideal for larger thread spools
• ✔️ Prevents thread jumping, tangling, and uneven feed
• ✔️ Improves stitch quality and tension consistency
• ✔️ Designed for horizontal spool pin systems
• ✔️ Quick and easy, tool-free installation

Compatibility

Guaranteed to Fit Pfaff Sewing Machine Models:

Creative 2.0, Creative 3.0, Creative 4.0, Creative 4.5, Creative Performance, Creative Sensation, Creative Sensation Pro, Creative Vision 5.5
Expression 150, Expression 2.0, Expression 3.0, Expression 3.2, Expression 3.5, Expression 4.0, Expression 4.2, Expression 710
Performance 5.0
Quilt Expression 720

Guaranteed to Fit Husqvarna Viking Sewing Machine Models:

100Q H Class
Designer Diamond, Diamond Deluxe, Diamond Royale
Designer Ruby, Ruby Deluxe, Ruby Royale
Eden Rose 250C
Opal 650, 670
Sapphire 830, 835, 855, 875, 930, 960Q
Designer Topaz 20, 25, 30, 40, 50
Tribute 140C

Specifications

• Part Number: 413051603
• Size: Large
• Diameter: ~45 mm
• Function: Stabilizes thread spool for smooth thread flow
• Fitment: Horizontal spool pins

Why This Part Matters

Using the correct spool cap size is essential for proper thread control. A missing or incorrect cap can lead to:

• Thread slipping or jumping off the spool
• Uneven tension and poor stitch quality
• Thread snags, breaks, or tangling
• Inconsistent performance at higher sewing speeds

This large spool cap ensures maximum spool stability and professional-level stitching results.

FAQ

Q: When should I use a large spool cap?
A: Use a large spool cap when working with larger diameter thread spools to maintain stability and proper thread feed.

Q: Is this an OEM part?
A: Yes — this is a genuine Pfaff / Husqvarna Viking OEM part (413051603).

Q: Will this improve stitch quality?
A: Absolutely. Proper spool stabilization directly improves thread tension consistency and stitch formation.