Straight-Arm Casement Window Operators | 9-1/2" & 13-1/2" | Traditional, Ellipse, Weathershield Hardware

Straight-arm casement operators are essential components for side-hinged windows that require stable, easy-to-operate opening and closing. This collection includes both 9-1/2 inch and 13-1/2 inch straight-arm models, covering the most common sizes and configurations found in residential and light commercial windows. Each operator is engineered to restore smooth, secure window function,ideal for replacements or upgrades where reliability and compatibility matter most.

Key Features and Specifications

• Available in 9-1/2" and 13-1/2" straight-arm lengths
• Styles include Traditional, Ellipse, and Weathershield-specific designs
• Handed options for left or right side installations
• Rugged construction with metal or stainless steel rollers for long-term durability
• Multiple finishes to match window hardware
• Compatible with many wood, vinyl, aluminum, and composite window frames

Compatible Applications and Use Cases

These operators are widely used as direct replacements for worn, damaged, or discontinued casement window hardware, especially on windows originally outfitted with AmesburyTruth mechanisms. The Traditional 9-1/2 inch and Ellipse 13-1/2 inch variants fit many standard window profiles. Weathershield-specific models, such as this operator, are precision-engineered for Weathershield-branded windows.

Homeowners, property managers, and installers choose these parts for reliable repairs that restore full window function. The operator arms are designed for straightforward alignment with existing hardware, making installation and replacement fast and uncomplicated.

Installation and Replacement Tips

Before ordering, confirm whether your window requires a left-hand or right-hand operator, and measure the arm length to ensure proper sizing. Most models are direct replacements and can reuse existing mounting holes from the original part. For best results, check for matching mounting hole patterns and roller types. Stainless steel roller options are ideal for high-humidity or coastal environments, as seen in this right-hand version.

About AmesburyTruth Hardware

All straight-arm casement operators in this collection are manufactured by AmesburyTruth, a leading name in window and door hardware known for precision engineering and consistent quality. As an authorized reseller, TruthParts guarantees every item is an authentic, factory-original replacement part,ensuring peace of mind and long-term performance. AmesburyTruth products are trusted in both new construction and retrofit projects across North America.

Frequently Asked Questions

• Q: How do I determine if I need a left-hand or right-hand operator?
  A: Stand inside and face the window. If the hinge is on your left when the window opens outward, you need a left-hand operator; if it's on your right, choose a right-hand model.
• Q: Are these operators compatible with older window models?
  A: Yes, many models such as the discontinued old style right hand version fit older or discontinued windows when the arm length and mounting pattern matches.
• Q: Can I install these without professional help?
  A: Most operators are designed for straightforward installation using basic hand tools, though attention to arm length, hand orientation, and mounting hole alignment is important for a smooth replacement.