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4040 Tailboard Block – 3″ Sheave for 3/8″ Wire Rope

Built for tough lifting and pulling jobs, the 4040 Tailboard Block is a compact, durable pulley designed to handle 3/8″ wire rope. It features a 3″ sheave and a 5:1 safety factor, offering reliable performance with a working load limit of 4,000 lbs and a break strength of 20,000 lbs. The bronze bushing ensures smooth operation and extended service life, even under demanding use.

Ideal for fixed rigging points or tight installation areas, this tailboard block simplifies cable or rope routing in field conditions. Its open-side design allows quick rope insertion, making it a go-to choice for professionals working in construction, mining, utilities, and agriculture.

Reliable Pulley Block for Rigging, Lifting & Tensioning

Whether you’re setting up tension lines, redirecting pulls, or securing loads, this tailboard block offers dependable function with minimal weight-just 2 lbs. Built to meet or exceed ASME B30.26 standards, it’s engineered for consistent safety and performance in critical applications.

Key Features

• Wire Rope Size: Accepts 3/8″ wire rope
• Sheave Diameter: 3″ for efficient load distribution
• Load Ratings: 4,000 lb working load limit; 20,000 lb break strength
• Safety Factor: 5:1 ratio ensures confidence under load
• Bronze Bushing: Reduces wear for longer service life
• Weight: Lightweight 2 lb design for easy handling
• Compliance: Meets or exceeds ASME B30.26 requirements
• Applications: Suited for rigging, mining, agriculture, and industrial cable routing

View Product Safety Warnings

California Residents: WARNING