Photo may vary slightly — verify by part number before ordering.Daikin Applied GC11997 — Shaft 1.25 Inch OD X 79.50 Inch L
In stock and ordered before 1pm ET, Mon–Fri? It ships the same day from our US warehouse.
Not sure it's the right part? Send the model and serial — help@totalhvacparts.com or 302-219-4994.
Need more than 2? Ask about factory lead time — we'll give you a real date, not a guess.
Min. order: 1 unit · Weight: 22.0 lb
Overview
Daikin Applied (McQuay) GC11997 — Shaft 1.25 Inch OD X 79.50 Inch L. A coupling or shaft transmits rotation between a motor and the driven load. Sold under the McQuay, Daikin McQuay and AAF-McQuay names.
Confirm fit by the part number on your original part or the unit's parts list. Not sure? Contact us with your model and serial number.
Ships via UPS or FedEx Ground, or by truck freight for oversized items. Free standard shipping to U.S. addresses. See our Return and Refund Policy for return eligibility. Genuine Daikin Applied OEM part — not an aftermarket substitute.
What is Daikin Applied (McQuay) GC11997?
It is a genuine Daikin Applied OEM coupling or shaft, listed by Daikin Applied as “Shaft 1.25 Inch OD X 79.50 Inch L”. Listed specifications: Shaft OD x Length 1.25 x 79.50 in.
What are the signs a coupling or shaft has failed?
A worn coupling may slip, vibrate, make noise, or show cracks or wear.
Is GC11997 the same as the McQuay part number?
GC11997 is the Daikin Applied part number for this item. The McQuay, Daikin McQuay and AAF-McQuay names refer to the same manufacturer line, so search or order by this number. If your old part shows a different number, send it to us and we will check it against this listing.
How is GC11997 shipped, and can it be returned?
Ships via UPS or FedEx Ground, or by truck freight for oversized items. Free standard shipping to U.S. addresses. See our Return and Refund Policy for return eligibility.
Specifications
Values in italic are not yet confirmed from OEM documentation. Ask us to verify before ordering.
After You Order
Order number and confirmation by email the moment you check out.
Pulled from our shelf — the same live count you saw on this page. In-stock orders placed before 1pm ET, Mon–Fri, leave the same business day.
Tracking number lands in your inbox the moment it leaves the building.
Check the part number on the label against your order before installing. Wrong or damaged? Tell us — we'll sort it out.
Ask the Parts Desk
Not sure this fits? Need more than what's in stock? Send the model and serial from the unit's data plate — a real person reads it and confirms before you order.
Common Questions
Is the stock number on this page real?
Yes — it's the live count from our own shelf, not an availability estimate. If it says 2, that's how many are physically here. When it hits zero, this page says so.
Is this a genuine Daikin Applied part, or aftermarket?
Genuine Daikin Applied OEM equipment sourced through Daikin Applied's authorized parts program — not an aftermarket substitute.
How do I confirm this fits my unit?
Match part number GC11997 to your unit's parts diagram. If unsure, send us your model and serial number and we'll verify before you order.
I see this listed under a different name on other sites. Is it the same part?
Yes — manufacturers and distributors sometimes use different brand names or legacy labels for the same part number. Part number GC11997 is identical across all name variations.
What's the warranty on this part?
Daikin Applied parts carry a 30-day manufacturer warranty from the date of delivery, covering defects in material or workmanship. This is separate from our 30-day return window — a warranty claim applies even after a part has been installed, provided it was installed and used per the manufacturer's instructions. Contact us with your order number and a description of the issue to start a claim.
How fast does this ship?
In-stock items ship the same business day on orders placed before 1pm ET, Monday–Friday. Standard ground delivers to most of the continental US in 2–5 business days. Ships via UPS/FedEx Ground, or truck freight for oversized items. Free standard shipping (US).
Does everything ship UPS or FedEx Ground?
Most orders ship UPS or FedEx Ground. A small number of large or heavy parts across the catalog ship by truck freight instead, and we reach out to arrange a delivery window before those orders leave the warehouse. Oversized items that ship by truck freight are also covered by free standard shipping on orders of $50 or more.
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