Stanley Dura-Glide Bottom Guide Assembly | Forked Guide | Automatic Sliding Door Replacement Part

Restore proper alignment and smooth travel on compatible Stanley automatic sliding doors with the Stanley DURA Forked Guide – Complete Assembly, part number 515265, also referenced as 251C.

This bottom guide assembly helps control and stabilize the moving door panel during operation, keeping the panel properly aligned as it travels through the opening.

Designed for commercial automatic sliding-door applications, the complete forked guide is an ideal replacement for worn, bent, damaged, or missing bottom-guide hardware.

Key Features

• Stanley automatic sliding-door replacement component

• Part Number: 515265

• Cross-reference: 251C / 251-C

• Complete forked bottom guide assembly

• Designed for compatible Stanley Dura-Glide systems

• Helps maintain proper sliding-door alignment

• Supports smooth, controlled panel travel

• Helps reduce unwanted lateral door movement

• Commercial-duty construction

• Ideal for repair and preventive maintenance

• Direct replacement for compatible existing guide assemblies

• Suitable for high-traffic automatic-door openings

Bottom Forked Guide Function

The bottom guide helps control the lower portion of the moving sliding-door panel as the door opens and closes.

Proper guide operation helps maintain:

• Correct panel alignment

• Smooth sliding movement

• Consistent door clearances

• Reduced side-to-side panel movement

• Proper door tracking

• Reliable automatic-door operation

A worn or damaged guide can contribute to excessive panel movement, rubbing, noise, or poor door alignment.

Stanley Factory Description

Stanley factory replacement-parts documentation identifies 515265 as:

Guide Assembly – Bottom – 3000

The component is associated with compatible Stanley Dura-Glide automatic sliding-door systems.

Product Specifications

Brand: Stanley Access Technologies
Part Number: 515265
Cross Reference: 251C / 251-C
Product Type: Forked Guide Assembly
Factory Description: Guide Assembly – Bottom – 3000
Mounting Location: Bottom of Door Assembly
Application: Automatic Sliding Door
Series: Compatible Stanley Dura-Glide Systems
Function: Door Guiding & Alignment
Duty: Commercial
Use: Replacement / Repair / Preventive Maintenance

Common Applications

Used on compatible Stanley automatic sliding doors installed in:

• Hospitals

• Healthcare facilities

• Retail stores

• Grocery stores

• Airports

• Hotels

• Office buildings

• Schools and universities

• Government facilities

• Assisted living facilities

• Commercial entrances

• High-traffic public buildings

Replacement Applications

Consider replacing the existing forked guide when it is:

• Worn

• Bent

• Broken

• Loose

• Missing

• Damaged from door impact

• Allowing excessive panel movement

• Causing rubbing or misalignment

• Preventing smooth door travel

During service, inspect the surrounding door-panel hardware, threshold, pivots, and related guides for additional wear.

Compatibility Note

Stanley Dura-Glide automatic doors use different bottom-guide assemblies depending on the door series and panel configuration.

Before ordering, verify:

• Stanley part number 515265

• Existing guide style

• Door series

• Panel configuration

• Mounting location

• Related bottom hardware

Matching the existing part number is the most reliable method for confirming compatibility.

Installation Notes

After replacement, verify:

• Door-panel alignment

• Proper guide engagement

• Smooth opening and closing

• Correct panel clearance

• Proper breakout operation where applicable

• No binding or rubbing through the complete door cycle

Automatic-door repairs should be performed by personnel familiar with commercial automatic sliding-door systems.

What's Included

(1) Stanley DURA Forked Guide Complete Assembly – 515265 / 251C

Door panel, threshold, pivots, fasteners, detent assemblies, hangers, rollers, operator components, and other automatic-door hardware are sold separately unless specifically stated otherwise.