Jason Window & Door Replacement Parts

Looking for replacement parts for Jason windows or doors? Browse Glideworks hardware listed for selected Jason systems, including sliding glass doors, sliding windows, screen doors and residential stacking doors.

Jason hardware varies by model and age. Use this guide as a starting point, then compare product details, dimensions and photos with your existing part before ordering. Brand alone does not guarantee a fit.

Jason sliding door rollers and carriages

• 3-1090 Sliding Glass Door Carriage – Listed for older Jason and BGC patio doors manufactured between 1982 and 2000.
• 3-1170 Sliding Door Carriage and Roller – Listed for older Jason and BGC sliding doors from 1982–2000.
• 3-1177 Adjustable Door Carriage and Roller – Listed for vintage Jason and BGC models from 1982–2000.
• 3-1174 Twin-Roller Sliding Door Carriage – Listed for Jason sliding doors manufactured from 2010 onwards.
• 3-1200 Aluminium Carriage with Stainless Steel Roller – Listed for Jason sliding doors. Compare the assembly with your original part.
• 3-1640 Left and Right Head Guides – Listed for Jason and Wunderlich sliding door frames.

Jason door locks and handles

• 4-8857 Sliding Door Lock – Listed for Jason and BGC MK2 sliding glass doors. Cylinder included.
• Jason Lever Lock Handles – Listed for residential stacking doors manufactured from 2008 onwards. Left- and right-handed options are determined when viewed from inside the home. Locking mechanism and barrel are sold separately.

Jason window rollers and carriages

• 3-5192 Sliding Window Carriage – Nylon grooved roller and brass pin, with three adjustable height settings.
• 3-5270 Older Jason Window Carriage – Listed for pre-1982 Jason windows. Supplied as a matched left- and right-handed pair.
• 3-5240 Old Jason Window and Door Carriage – Adjustable carriage with stainless steel grooved roller. Listed as a special order item; allow additional processing and delivery time.

Jason window handles and catches

• 4-6124 Left-Hand Lockable Window Handle – Compare the handle orientation and fixing points with your existing hardware.
• 4-6125 Right-Hand Lockable Window Handle – The right-handed option for compatible Jason window systems.
• 4-6120 Jason Window Catch – Check the catch shape and fixing positions before ordering.

Jason screen door and flydoor parts

• 3-3160 Screen Door Top Hanger and Roller – Listed for Jason sliding screen doors.
• 3-3340 Screen Door Bottom Guide – Adjustable guide listed for Jason and Wunderlich V2 systems.
• 3-3410 Screen Door Carriage and Roller – Listed for Jason sliding screen doors.
• 3-4180 Replacement Roller – Listed for Jason flyscreen doors. Roller diameter 27mm with a 5mm axle.
• 3-3333 Screen Door Insect Stops – Includes left and right insect stops for compatible Jason screen doors.
• 1-8080B Jason Fly Door Catch – Catch kit with backing plate and keeper plate.

How to check compatibility

Identify your door or window model where possible. Compare the original part's shape, dimensions and fixing points with the replacement product information. For rollers, check roller diameter, profile and carriage dimensions. For handles and locks, check handing, mounting positions and mechanism shape. Model years are a guide, not a guarantee of fit.

If you are unsure, contact Glideworks before ordering with clear photos of your existing part, measurements and any identifying marks on the door or window. For rollers and carriages, a photo of the removed assembly is especially helpful.

For related systems, see our BGC window and door parts guide. Shared brand references do not mean that parts are interchangeable across every model.

Jason is used here to identify the door and window systems referenced in our product listings. Parts are not represented as genuine Jason components unless expressly stated on the individual product page.