Husqvarna X-CUT SP33G Chain 18″

Part Number: 581643172

The Husqvarna X-CUT SP33G Chain 18″ is a high-performance chainsaw chain developed and manufactured entirely in-house by Husqvarna. Designed to meet the demands of both professionals and demanding homeowners, this 18-inch chain combines cutting efficiency, durability, and safety in one reliable package.

This chain features a .325″ pitch, a 1.3 mm (.050″) gauge, and comes with 72 drive links, making it ideal for a wide range of mid-size Husqvarna chainsaws, including models like the 445, 450, 545, and 550 XP. Its semi-chisel cutter profile offers a great balance of cutting speed and edge retention, performing well even in tough or dirty conditions where full-chisel chains may dull quickly.

The X-CUT SP33G also includes Husqvarna’s Pixel technology, which creates a narrow kerf that reduces chain drag and allows faster, more efficient cutting with lower power consumption—perfect for modern, high-efficiency chainsaws. It is factory pre-stretched, which means fewer tension adjustments during break-in and extended use.

Safety is also a strong focus with this chain. The design includes low-kickback bumper drive links, which reduce the risk of dangerous kickback during operation, without compromising cutting performance. This makes it a smart choice for both professional and casual users seeking safety alongside reliability.

Whether you’re cutting firewood, pruning, or working in forestry, the SP33G chain delivers consistent, smooth cuts, reduced vibration, and long-lasting sharpness. When paired with Husqvarna’s X-Force guide bars, it forms a lightweight, high-efficiency cutting system that minimizes fatigue while maximizing output.

The Husqvarna X-CUT SP33G 18″ chain is a durable, safe, and high-performance option ideal for users who want precision cutting and reduced maintenance.

Technical Specifications

• Product Name: Husqvarna X-CUT SP33G Chain
• Part Number: 581643172
• Bar Length: 45cm/18″
• Pitch: .325″
• Gauge: 1.3 mm (.050″)
• Drive Links: 72 DL
• Cutter Type: Semi-chisel
• Kerf Type: Pixel
• Design: Low kickback with bumper drive links
• Chain Type: Pre-stretched for reduced break-in tensioning
• Intended Use: All-round cutting—firewood, forestry, land maintenance
• Recommended Bar Type: Husqvarna X-Force or other .325″, 1.3 mm bars
• Compatibility: Suitable for Husqvarna chainsaws such as 445, 450, 545, 550 XP, and similar models

Compatible Husqvarna Chainsaw Models:

• 445 MKII
• 445e
• 450 MK II
• 450e
• 545
• 545 Mark II
• 550 XP
• 550 XP Mark II
• 340
• 345
• 346 XP
• 350
• 353
• 542i XP (battery model)
• 540i XP (with appropriate bar setup)

Before purchasing, it’s always a good idea to check your chainsaw’s guide bar or count the number of drive links on your current chain to ensure compatibility.

Perfect for Various Applications

This chainsaw chain is an excellent choice for professionals and homeowners who need a reliable, high-performance cutting tool. It is well-suited for:

• Forestry Work: Designed to handle heavy-duty cutting tasks with maximum efficiency.
• Landscaping and Tree Maintenance: Ideal for trimming, pruning, and felling small to medium-sized trees.
• Firewood Cutting: Delivers fast and clean cuts, making it easy to prepare firewood efficiently.

Maintenance Tips for Long-Lasting Performance

To keep your X-Cut SP33G chain performing at its best, follow these maintenance tips:

• Regularly check chain tension and adjust as needed to prevent excessive wear.
• Lubricate the chain properly to reduce friction and increase lifespan.
• Sharpen the cutters periodically using the appropriate file size to maintain optimal cutting efficiency.
• Inspect for any wear or damage and replace the chain when necessary to ensure safety and performance.