Replacement for WD181KRYZ: Drop-In Alternatives We Stock
Looking for a replacement for the WD181KRYZ (WD181KRYZ - Western Digital Gold 18TB 7200RPM SATA 6GB/s 256MB Cache 3.5-inch Hard Drive)? Pro Disk Network ships Western Digital drop-in replacements and equivalent modern parts from US inventory. Every alternate below is in-stock today with same-day shipping for orders placed before 2pm ET. If your unit is still under warranty, contact our engineering team — we offer cross-shipping for B2B customers on Net 30 terms.
About the WD181KRYZ
| SKU | WD181KRYZ |
|---|---|
| Product | WD181KRYZ - Western Digital Gold 18TB 7200RPM SATA 6GB/s 256MB Cache 3.5-inch Hard Drive |
| Current price | $673.68 |
| Stock status | In Stock |
| Detail page | View WD181KRYZ › |
Drop-in replacements for WD181KRYZ
Each part below is currently in our US warehouse, ships same-day for orders before 2pm ET, and includes our 90-day warranty. SKUs link to the full product page with photos, datasheets and B2B quote form.
Western WUH721818ALE601 Western Digital WUH721818ALE601 Ultrastar DC HC550 18TB 7200RPM 6Gb/s SATA 512e Self-Encrypting Drives (SED) 3.5-Inch Hard Drive
SKU: WUH721818ALE601
Price: $597.89
Western 0F38452 Western Digital 0F38452 Ultrastar DC HC550 18TB 7200RPM 6Gb/s SATA 512e Self-Encrypting Drives (SED) 3.5-Inch Hard Drive
SKU: 0F38452
Price: $738.95
Western WD8005FRYZ Western Digital WD8005FRYZ Gold Enterprise 8TB 7200RPM SATA 6Gb/s 256MB Cache 3.5-Inch Enterprise Class Hard Drive
SKU: WD8005FRYZ
Price: $921.05
0F38459 - Western Digital Ultrastar DC HC550 18TB 7200RPM SATA 6Gb/s SE 512MB Cache 3.5-inch Hard Drive
SKU: 0F38459
Price: $608.42
WUH721818ALE6L4 - Western Digital Ultrastar DC HC550 18TB 7200RPM SATA 6Gb/s SE 512MB Cache 3.5-inch Hard Drive
SKU: WUH721818ALE6L4
Price: $684.21
WD180PURZ - Western Digital Purple Surveillance 18TB SATA 6Gb/s 7200RPM 512MB Cache 3.5-inch Hard Drive
SKU: WD180PURZ
Price: $971.38
WD181PURP - Western Digital Purple Pro 18TB SATA 6Gb/s 7200RPM 512MB Cache 3.5-inch Surveillance Hard drive
SKU: WD181PURP
Price: $1,131.58
0F38458 - Western Digital Ultrastar DC HC550 18TB 7200RPM SATA 6Gb/s SED 512MB Cache 3.5-inch Hard Drive
SKU: 0F38458
Price: $1,137.09
WD4003FRYZ - Western Digital Gold Enterprise Class 4TB 7200RPM SATA 6Gb/s 256MB Cache 3.5-inch Internal Hard Drive
SKU: WD4003FRYZ
Price: $233.68
WD101KRYZ - Western Digital Gold 10TB 7200RPM SATA 6Gb/s 256MB Cache 3.5-inch Hard Drive
SKU: WD101KRYZ
Price: $326.32
WD8003FRYZ - Western Digital Gold 8TB 7200RPM SATA 6Gb/s 256MB Cache 3.5-inch Hard Drive
SKU: WD8003FRYZ
Price: $342.18
How we pick replacements
Every recommendation above was selected using these criteria:
- Drop-in compatibility — same form factor (2.5"/3.5", PCIe slot, SFP port, etc.), so it fits the original chassis without modification
- Equivalent or better performance — matched on RPM/IOPS/speed/throughput, never downgraded
- Same-brand-preferred — we list the OEM-equivalent first when available, then trusted aftermarket
- Warranty coverage — 90-day Pro Disk warranty on every part, with 1-year option for B2B
- In stock today — never recommend a part that is on backorder
Need help confirming compatibility?
Our engineers validate every replacement against your specific server, switch, or chassis model before shipment. Email sales@prodisknetwork.com with your platform model (e.g., Dell PowerEdge R740, HP DL380 Gen10, Cisco Catalyst 9300) and we will confirm the exact part number that drops into your hardware.