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The LiftMaster G2778 is a one-piece 8 ft (2.4 m) belt drive rail assembly used to install various LiftMaster and Chamberlain belt drive garage door openers. It is the rail only: the opener head is sold separately. Rail length is chosen by door height, and a 8 ft rail is the standard choice for a 8 ft tall door.
Specifications at a Glance
Compatible Openers and Part Numbers
Listed compatible with: LiftMaster 87504-267, LiftMaster 84501. It is also used with other LiftMaster and Chamberlain belt drive openers; check your opener manual for the specific rail kit before ordering.
Also known as: LiftMaster MR2778BD, LiftMaster 2778PL, LiftMaster 2778BDC, LiftMaster 2778BD, LiftMaster MR2778BDC, LiftMaster 012381227785.
- Your opener is a LiftMaster or Chamberlain belt drive opener critical
- Your door is about 8 ft tall critical
- Your opener manual lists this rail kit or one of its part numbers critical
- You can collect from our Sacramento or Santa Clara store
Full Technical Specifications
| Brand and model | LiftMaster G2778 |
|---|---|
| Product type | Belt drive opener rail assembly |
| Length | 8 ft (2.4 m), one piece |
| Typical door height | 8 ft |
| Compatible openers (listed) | 87504-267, 84501 |
| Alternate part numbers | MR2778BD, 2778PL, 2778BDC, 2778BD, MR2778BDC, 012381227785 |
| Availability | Local pickup only |
| Category | Opener rails |
What’s Included
In the box
- LiftMaster G2778 one-piece 8 ft belt drive rail assembly
Sold separately
- Opener head, see garage door openers
- Mounting hardware specific to your garage
Compare LiftMaster Rails
| Model | Drive | Length | Listed compatible openers |
|---|---|---|---|
| G2777 | Belt | 7 ft | 87504-267, 84501 |
| G2778 this product | Belt | 8 ft | 87504-267, 84501 |
| G1707 | Chain | 7 ft | 84602, 8365W-267 |
| G1708 | Chain | 8 ft | 84602, 8365W-267, 2420L, 2220L, 81602 |
| G3707CH | Chain | 7 ft | 87802, 8587W |
| G3708CH | Chain | 8 ft | 87802, 8587W |
| G3710CH | Chain | 10 ft | 87802, 8587W |
Frequently Asked Questions
Which rail length do I need?
Match the rail to your door height: a 7 ft rail for a 7 ft door, 8 ft for 8 ft, 10 ft for 10 ft. This G2778 is 8 ft.
Can I use a chain rail on a belt drive opener?
No. Chain and belt drive rails are different. Use the rail type that matches your opener.
Is the opener included?
No, this is the rail only. See our garage door openers.
Can this item be shipped?
No. This item is too large to ship and is available for collection only from our Sacramento or Santa Clara store. Call ahead and we will have it ready for you.
Why Choose the LiftMaster G2778
A genuine LiftMaster one-piece rail goes up straight and stays aligned, which keeps the trolley running smoothly and the opener quiet. The G2778 is the 8 ft belt drive version.
Contact us with your opener model if you would like the rail confirmed before you visit.
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