Alternative to ST318416W: Better-Value Equivalents in Stock
Comparing the ST318416W (ST318416W - Seagate BarraCuda 18XL 18.4GB Wide Ultra SCSI 7200RPM 2MB Cache 3.5-inch Hard Drive) against alternatives? Pro Disk Network stocks 12 similar Seagate parts that offer comparable performance at different price points. Each option below is in-stock, US-warehoused, and tested-and-certified before ship. Bulk pricing is available on quantities of 5+; B2B procurement can use Net 30 with PO.
About the ST318416W
| SKU | ST318416W |
|---|---|
| Product | ST318416W - Seagate BarraCuda 18XL 18.4GB Wide Ultra SCSI 7200RPM 2MB Cache 3.5-inch Hard Drive |
| Current price | $221.74 |
| Stock status | In Stock |
| Detail page | View ST318416W › |
Alternatives to ST318416W
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.
9J6003-040 - Seagate BarraCuda 4XL 4.55GB 7200RPM Wide Ultra SCSI 80-Pin 512KB Cache (CE) 3.5-inch Hard Drive
SKU: 9J6003-040
Price: $82.42
9J4003-032 - Seagate BarraCuda 9LP 4.55GB 7200RPM Wide Ultra SCSI 80-Pin 512KB Cache (CE) 3.5-inch Hard Drive
SKU: 9J4003-032
Price: $82.42
9J6003-058 - Seagate BarraCuda 4XL 4.55GB 7200RPM Wide Ultra SCSI 80-Pin 1MB Cache 3.5-inch Hard Drive
SKU: 9J6003-058
Price: $103.62
9C6004-049 - Seagate BarraCuda 4LP 4.35GB 7200RPM Wide Ultra SCSI 80-Pin 512KB Cache 3.5-inch Hard Drive
SKU: 9C6004-049
Price: $105.57
9J4008-037 - Seagate BarraCuda 9GB 7200RPM Wide Ultra SCSI 80-Pin 512KB Cache 3.5-inch Hard Drive
SKU: 9J4008-037
Price: $105.57
9C6004-079 - Seagate BarraCuda 4LP 4.35GB 7200RPM Wide Ultra SCSI 80-Pin 512KB Cache 3.5-inch Hard Drive
SKU: 9C6004-079
Price: $111.05
9C6004-080 - Seagate BarraCuda 4LP 4.35GB 7200RPM Wide Ultra SCSI 80-Pin 512KB Cache 3.5-inch Hard Drive
SKU: 9C6004-080
Price: $111.05
9C6004-040 - Seagate BarraCuda 4LP 4.35GB 7200RPM Wide Ultra SCSI 80-Pin 512KB Cache 3.5-inch Hard Drive
SKU: 9C6004-040
Price: $122.66
9J6003-032 - Seagate BarraCuda 4XL 4.55GB 7200RPM Wide Ultra SCSI 80-Pin 512KB Cache (CE) 3.5-inch Hard Drive
SKU: 9J6003-032
Price: $127.14
9C6004-065 - Seagate BarraCuda 4LP 4.35GB 7200RPM Wide Ultra SCSI 80-Pin 512KB Cache 3.5-inch Hard Drive
SKU: 9C6004-065
Price: $129.58
9C6011-037 - Seagate BarraCuda 4LP 2.1GB 7200RPM Wide Ultra SCSI 68-Pin 512KB Cache 3.5-inch Hard Drive
SKU: 9C6011-037
Price: $129.58
How we pick alternatives
Every recommendation above was selected using these criteria:
- Spec parity — capacity, speed, port count, and form factor matched within a 10% tolerance
- Price spread — alternatives shown across the price range, so you can pick on budget
- Brand mix — both OEM-equivalent and trusted aftermarket, all certified
- Reliability data — preferred parts have failure rates below 1% in our 18-month return tracking
- In stock today — shipping today, not 4-6 weeks from now
Want a side-by-side spec comparison?
We can prepare a written comparison covering throughput, power draw, form factor and validated compatibility. Email sales@prodisknetwork.com or call +1 (407) 205-8454 — most quotes ship within 4 business hours.