Filter by

Availability
Price
$
$
More filters

Offset Down Link Casement Window Operators | EntryGard® Dual Arm Replacements | AmesburyTruth

Offset down link casement operators control the opening and closing of casement windows with precision, ensuring smooth sash movement and secure locking. This collection features genuine EntryGard® operators designed for compatibility with many popular window brands, offering reliable performance and easy replacement for worn or damaged mechanisms.
Showing 4 of 4 products
Filter Products

Filter Products

Showing 4 of 4 products

Availability
Clear
Price

The highest price is

$
$
More filters
Clear
Clear

Showing 1 -4 of 4 items

Offset down link casement operators are essential hardware components designed to open and close casement windows efficiently. Commonly known as EntryGard® operators, these dual-arm mechanisms feature a linkage arm with an offset-down orientation,meaning the connecting link angles downward relative to the operator base. This configuration is critical for specific window profiles and ensures the sash swings out smoothly, providing controlled ventilation and a tight seal when closed.

Key Features and Specifications

  • Offset down link design for precise window operation and compatibility with various frame types
  • Typical linkage arm length: 4-7/16", seen on part numbers such as 20810 and 20544
  • Manufactured by AmesburyTruth using high-pressure die-cast zinc with E-Gard coating for corrosion resistance
  • Hardened steel gears and drive worm for extended durability
  • Supports windows up to 32" wide and 60" high, with sash weights up to 60 pounds
  • Available in both left-hand and right-hand orientations

Use Cases and Compatibility

These EntryGard® offset down link operators are commonly found in residential and commercial casement windows. They are ideal replacements for original equipment in many window systems using AmesburyTruth hardware, including windows supplied by numerous leading manufacturers. Identifying the correct replacement typically involves checking the stamped part numbers on the linkage arm (such as 20810 or 20544) and measuring the link length (most frequently 4-7/16").

Handing is determined by the side of the sash lock: if the lock is on the left, use a left-hand operator; if on the right, a right-hand operator. For an example of a left-hand replacement, see this operator model. For a right-hand version, refer to a compatible right-hand operator.

Replacement and Installation Tips

Replacing an offset down link operator typically requires minimal tools: a screwdriver and, in some cases, new screws tailored to the window frame material. Always check the product images and specifications to confirm handing and link orientation before ordering. When removing your old operator, note the stamped numbers and measure the arm length to ensure a perfect match. If you see part numbers like 20810, 20544, 31538, or 30470 on your hardware, these EntryGard® operators are likely the correct fit. For a popular operator model with a 4-7/16" offset down link, see this listing.

Some installations may require a new cover or handle, which are typically sold separately. Be sure to review the screw requirements for your window frame and reference the manufacturer's technical notes for guidance. For unique clip under designs or custom applications, you may find this specific hinge set useful.

About AmesburyTruth and Genuine Parts

All offset down link casement operators in this collection are manufactured by AmesburyTruth, a recognized leader in window and door hardware engineering. TruthParts is an authorized retailer, ensuring you receive only new, genuine replacement parts backed by AmesburyTruth's standards for quality, fit, and finish. Choosing authentic EntryGard® operators guarantees long-lasting performance and helps maintain the integrity of your window system.

Frequently Asked Questions

  • How do I identify the correct handing? Handing is based on the side of the sash lock: left-hand if the lock is on the left, right-hand if on the right.
  • What part numbers are compatible? Common numbers on compatible arms include 20810, 20544, 31538, 31539, 30841, and 30842. Always verify the stamped number and arm length before ordering.
  • Do I need a new handle or cover? Handles and covers are sold separately. Any standard EntryGard® handle will fit these operators, but always check your window's requirements.
  • Are screws included? Screws are typically not included; refer to manufacturer recommendations for screw type and size.