Replacement for ST18000NM000J: Drop-In Alternatives We Stock
Looking for a replacement for the ST18000NM000J (ST18000NM000J - Seagate 18TB Exos X18 7.2K SATA 6Gb/s 256MB Hard Drive)? Pro Disk Network ships Seagate 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 ST18000NM000J
| SKU | ST18000NM000J |
|---|---|
| Product | ST18000NM000J - Seagate 18TB Exos X18 7.2K SATA 6Gb/s 256MB Hard Drive |
| Current price | $633.68 |
| Stock status | In Stock |
| Detail page | View ST18000NM000J › |
Drop-in replacements for ST18000NM000J
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.
Seagate ST18000NM002J Exos X18 18TB 7200RPM 6Gb/s SATA 256MB Cache 512e 3.5-Inch Hard Drive (OEM)
SKU: ST18000NM002J
Price: $791.58
Seagate ST18000NM005J Exos X18 18TB 7200RPM 12Gb/s SAS 256MB Cache 512e/4kn 3.5-Inch Hard Drive
SKU: ST18000NM005J
Price: $494.74
Seagate ST18000NM000D Exos x20 18TB 7200RPM 12Gb/s SAS 256MB Cache 512e 3.5-Inch Hard Drive
SKU: ST18000NM000D
Price: $797.89
Seagate ST18000NM006J Exos X18 Series 18TB 7200RPM SAS 12Gb/s 256MB Cache 3.5-Inch Hard Drive for PowerVault Storage System
SKU: ST18000NM006J
Price: $921.05
Seagate ST18000NM0272 Exos 2X18 Series 18TB 7200RPM SAS 12Gb/s 3.5-Inch Hard Drive
SKU: ST18000NM0272
Price: $608.42
Seagate ST18000NM007D Exos x20 18TB 7200RPM 12Gb/s SAS 512e 3.5-Inch Hard Drive (OEM)
SKU: ST18000NM007D
Price: $1,050.53
ST18000NE000 - Seagate IronWolf Pro 18TB 7200RPM SATA 6Gb/s 256MB Cache 3.5-inch Hard Drive
SKU: ST18000NE000
Price: $608.42
ST1000NM000A - Seagate Exos 7E8 1TB 7200RPM SATA 6Gb/s 256MB Enterprise 3.5-inch Hard Drive
SKU: ST1000NM000A
Price: $113.68
ST4000NM000A - Seagate Exos 7E8 4TB 7200RPM SATA 6Gb/s 256MB Cache 512n 3.5-inch Hard Drive
SKU: ST4000NM000A
Price: $170.53
ST2000NM001A - Seagate Exos 7E8 2TB 7200RPM SATA 6Gb/s 256MB Cache 3.5-inch Hard Drive
SKU: ST2000NM001A
Price: $194.74
ST4000NM002A - Seagate Exos 7E8 4TB 7200RPM SATA 6Gb/s 256MB Cache 3.5-inch Hard Drive
SKU: ST4000NM002A
Price: $202.11
Seagate ST3000NM000A Exos 7E8 Series 3TB 7200RPM SATA 6Gb/s 256MB Cache (512n) 3.5-Inch Hard Drive
SKU: ST3000NM000A
Price: $208.42
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.