WD181KFGX: Western Digital 18TB 7200RPM SATA 6Gb/s 3.5-in Hard Drive
MPN: WD181KFGX|By: Western Digital

Starting from
$775
Indicative. Final pricing is confirmed with your quote.
In Stockships worldwide
Key specs
- Capacity
- 18TB
- Interface Standard
- 6Gb/s
- Drive Interface
- SATA
- Rotational Speed
- 7200RPM
- Condition:
- New (authorized channel)
- Warranty:
- Full manufacturer warranty
Prefer your own inbox? Email us about this part
Bulk order? Request volume pricing
Authorized & warrantied
Sourced through authorized distribution, with the full manufacturer warranty.
Compatibility checked
Validated against your server platform before dispatch.
Delivery & lead time
Confirmed with your quote, including expedited freight where available.
Business & public sector
POs, net terms and volume pricing for qualified organizations, government and edu.
Product overview
Part number WD181KFGX identifies this Western Digital 18TB 7200RPM SATA 6Gb/s 3.5-in hard Drive. Rebuild time scales with capacity, so a large drive in a parity group is a longer window of exposure. This one spins at 7200RPM. Tell us the RAID level and group size and we will say plainly whether the geometry still makes sense.
Send the quantity you need and we will come back within 48 business hours with availability confirmed, not estimated.
Specifications
General
- Manufacturer part number
- WD181KFGX
- Product Type
- Server Hard Drives
- Manufacturer
- Western Digital
Technical specifications
- Capacity
- 18TB
- Rotational Speed
- 7200RPM
Interfaces & connectivity
- Drive Interface
- SATA
- Interface Standard
- 6Gb/s
Published specifications for WD181KFGX. Anything not listed here we will confirm against the manufacturer's documentation before quoting, because we would rather answer the question than let you assume.
Where the Western Digital WD181KFGX is deployed
- Like-for-like replacement of WD181KFGX in an existing system
- Rebuilding a parity group after a drive failure
- Holding a firmware-matched cold spare per chassis family
Who this part is for
- Procurement replacing drives out of a maintenance contract
- Teams standardising a mixed drive estate onto one firmware family
- Backup and archive teams growing bulk capacity in an existing shelf
What you get ordering this from us
Ordered by part number
Quoted and supplied against WD181KFGX specifically, so what arrives is what your build sheet asks for.
Volume pricing
The listed price is per unit; tiered pricing applies at quantity and purchase orders are accepted.
Firmware family matched
A mechanically identical drive with the wrong firmware is rejected by the controller; we check the family, not just the capacity.
Questions buyers ask about this part
Is WD181KFGX genuine and is the warranty intact?
Yes. It ships new in Western Digital packaging, which is what keeps the warranty and the firmware entitlement valid. Anything we cannot supply that way we tell you about before you order.
Will WD181KFGX work in my server?
Send the server model or the shelf it is going into. Vendor-keyed firmware is the usual reason an identical-looking drive is rejected, so we check that alongside interface and form factor.
Do you accept purchase orders and quote at volume?
Yes, POs from qualified organisations, net terms on approval, and banded pricing once the quantity is worth banding. Send the number and we will price it properly.
Compare other Server Hard Drives we stock
| Model | Brand | Key spec | Availability | From |
|---|---|---|---|---|
| Seagate Exos X18 12TB 7200RPM SAS 12Gb/s 512e 3.5-inch Enterprise Hard Drive | Seagate | Capacity: 12TB | In Stock | $280 |
| Toshiba MG09 16TB 7200RPM SATA 6Gb/s 512e 3.5-inch Enterprise Hard Drive | Toshiba | Capacity: 16TB | In Stock | $335 |
| Hitachi HGST Ultrastar He10 8TB 7200 RPM 12Gb/s SAS 512e 3.5"-inch Enterprise Hard Drive | Hitachi | Capacity: 8TB | In Stock | $190 |
| Dell 4TB 7200RPM 12Gb/s SAS 512e 3.5-inch Hot-Plug Nearline PowerEdge Hard Drive | Dell Technologies | Capacity: 4TB | In Stock | $155 |
| HPE 4TB 7200RPM 12Gb/s SAS 512e 3.5-inch LFF Smart Carrier Midline ProLiant Hard Drive | HPE | Capacity: 4TB | In Stock | $155 |
| HP 2TB 7200RPM 6Gb/s SAS 512n 3.5-inch LFF Smart Carrier Midline ProLiant Gen8 Hard Drive | HP | Capacity: 2TB | In Stock | $80 |
Browse all Server Hard Drives or everything we stock from Western Digital.
Specifying a system, not just the part?
Bulk capacity usually sits behind the flash tier that feeds a training cluster rather than under it.
