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Right Hand 9-1/2" Truth Ellipse Single Arm Window Operator
- Regular price
- $29.95
Replace with #50.60.00.211.Additional components required with this replacement: Cover/Handle #55308 Stud/Snap-On Bracket #551094 A track is not required with the replacement operator. The bracke... -
Right Hand Truth 15.56 Casement Operator, 7-1/2" Arm, Nylon Roller
- Regular price
- $29.95
Truth® 15.56 Traditional 7-1/2 single arm casement operator, nylon roller, Right -
Left Hand Truth Dyad Casement Operator for Wood Windows, Link Offset Up
- Regular price
- $47.88
- Regular price
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- Sale price
- $47.88
- Unit price
- per
Truth® Dyad Casement Operator for Wood Windows – Link Offset Up, Left Hand This Truth EntryGard® Dyad Arm Casement Operator is designed specifically for wood windows that require a sill-mount confi... -
Truth Sentry II WLS Window & Skylight Electric Replacement Motor
- Regular price
- $349.29
- Regular price
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- Sale price
- $349.29
- Unit price
- per
Truth Sentry II WLS Window and Skylight Electric Motor (Operator Only) This replacement electric motor is designed for the Truth Sentry II WLS Window and Skylight Electric Operator System. It provi... -
Left Hand Truth Sill Mounted Encore Casement Window Operator
- Regular price
- $36.08
- Regular price
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- Sale price
- $36.08
- Unit price
- per
Truth® Sill Mounted Encore Casement Operator, Left Hand The Truth® Encore Single Arm Casement Window Operator is designed for use in wood or vinyl casement windows, offering reliable opening and cl... -
Right Hand Truth Ellipse Split Arm Dyad Operator, 7/16" Offset
- Regular price
- $21.79 - $23.63
Truth® split arm casement operator used by Hurd®, Caradco® and othersThe new style Ellipse has smoothed contoured edges for an updated look.Application: Sill mountedHanded: Yes Left or Right as sho... -
Right Hand 7-1/2" Single Arm Casement Operator, Front Mount – Truth 23 Series
- Regular price
- $41.85 - $59.95
Truth® 23 Series Single Arm Casement Operator, Front Mount, 7-1/2Application: Normally Commercial, used with aluminum, steel or vinyl casement windowsMounting: Front MountMounting Screw Holes: 3-7/... -
Left-Hand Truth 15.56 7-1/2" Single Arm Casement Operator with Nylon RollerTruth® 15.56 Traditional 7-1/2 single arm casement operator, nylon roller, Left
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Right Hand Truth® 11" Casement Operator, Face Mount
- Regular price
- $67.59 - $84.70
Truth® single arm face mount 11 inch casement operator.Mounting: Face Mount ScrewsMounting Screw Holes: 3-7/8 & 4-3/4Operator Arm: Powder coatedArm Length: 11 inch , from center of operator to ... -
Right Hand Truth EntryGard Dyad Casement Operator, Link Offset Up, Clip Up
- Regular price
- $32.71
- Regular price
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- Sale price
- $32.71
- Unit price
- per
Truth EntryGard® Dyad Arm Casement Operator, Right Hand, Link Offset Up, Clip Up This Dyad Operator is designed for wood casement windows that use a sill-mount EntryGard® system from Amesbury Truth... -
Right Hand Truth Traditional 9-1/2" Straight Arm Casement Operator with Stainless Steel Roller
- Regular price
- $87.48
Truth Traditional Style 9-1/2 single straight arm casement operator with Stainless Steel Roller ButtonThey style of housing has been discontinued and has been replaced with the Ellipse SeriesBrand:... -
Right Hand Truth Maxim 50.70 Series Reverse Dyad Casement Window Operator
- Regular price
- $22.49
Truth® 50.70 Maxim Reverse Dyad Arm Operators are designed for narrow casement windows from 12Inch to 24Inch up to 72Inch high with a maximum sash weight of 53 lbs.The Reverse Dyad Operator is also...
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Casement window operators are mechanical devices that allow users to open and close casement windows with a simple turn of a crank. These operators are critical components that translate the rotational motion of a handle into the linear movement needed to move the window sash. Over years of regular use, original operators can wear out, making windows hard to open, crank closed, or seal properly. Replacing a faulty operator restores effortless handling and helps maintain the window's energy efficiency and security.
Types of Casement Window Operators
There are several common types of operators designed for different window styles and installation needs. Single arm operators are typically used on narrow or lightweight sashes, while dual arm operators provide extra leverage for larger or heavier windows, distributing force for smoother movement. Split arm and dyad operators offer solutions for unique window geometries or mounting requirements. All are engineered for reliability and ease of installation.
Key Features and Specifications
- Precision gear mechanisms for smooth, consistent operation
- Choice of right- or left-hand models to match window configuration
- Multiple arm lengths and profiles for exact fit
- Durable finishes and corrosion-resistant construction
- Compatible with wood, vinyl, aluminum, and composite window frames
Compatible Brands and Replacement Solutions
Our collection specializes in genuine replacement parts from AmesburyTruth, a leading manufacturer trusted by window professionals and OEMs for decades. These casement window operators are compatible with a wide range of window brands, including Integrity by Marvin and Ashland, as well as older and modern Truth window systems. Whether you need to match an Entrygard dual arm model or require a Truth dual arm with a short link, you'll find precision-fit options for both standard and specialty windows.
As an authorized retailer of AmesburyTruth products, TruthParts guarantees that every operator we sell is a genuine, OEM-quality part,never an aftermarket substitute. This assures perfect compatibility, reliable function, and manufacturer-backed durability, whether you're performing a single repair or upgrading multiple windows across a property.
Installation Tips and Use Cases
Replacement is typically straightforward and can often be accomplished with basic hand tools. It is important to match the operator's handing, arm length, and mounting style to your window's requirements. Referencing any visible part numbers or comparing the original mechanism with photos and specifications will help ensure a correct match. For specialty needs, such as skylight operation or egress windows, options like Truth electric operator systems are also available.
Common use cases include restoring function to hard-to-operate windows, replacing stripped or broken gears in high-use areas, or upgrading to modern, corrosion-resistant hardware. These operators are a popular solution for both residential and commercial properties, ensuring windows operate smoothly and seal tightly every time.
Frequently Asked Questions
- How do I determine which operator I need?
Identify the operator type (single arm, dual arm, split arm, etc.), handing (left or right), and match arm lengths. Part numbers, if available, are often stamped on the underside of the operator arm. - Are these parts compatible with older window models?
Many AmesburyTruth operators are designed as direct replacements for older and current window systems. Compare your existing part with product specs or contact us for help matching legacy hardware. - Do you offer both manual and electric operators?
Yes, the collection includes both manual crank and electric operator systems, such as Truth Sentry II, for enhanced accessibility and automation. - Can I install these operators myself?
Most replacements can be performed with a screwdriver and basic DIY skills. Always review the installation instructions and check for proper fit before final mounting.





















