Replacement for 42T4573: Drop-In Alternatives We Stock
Looking for a replacement for the 42T4573 (42T4573 - Lenovo 33 (4 CELL)Battery for ThinkPad T61 R61 R61I R400 T)? Pro Disk Network ships IBM 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 42T4573
| SKU | 42T4573 |
|---|---|
| Product | 42T4573 - Lenovo 33 (4 CELL)Battery for ThinkPad T61 R61 R61I R400 T |
| Current price | $199.51 |
| Stock status | In Stock |
| Detail page | View 42T4573 › |
Drop-in replacements for 42T4573
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.
02K7033 - IBM Lenovo 6-Cell Li-Ion Battery for ThinkPad T30 2366 (14.1-inch SXGA)
SKU: 02K7033
Price: $136.22
42T4532 - IBM Lenovo 9-Cell High Capacity Battery 33++ for ThinkPad T400 R400 T60/61 R60/R61
SKU: 42T4532
Price: $179.67
43R2499 - IBM 9-Cell High Capacity Battery 33++ for ThinkPad T400 R400 T60/61 R60/R61
SKU: 43R2499
Price: $185.84
42W4633 - IBM Lenovo Laptop Docking Station Type 2504 for ThinkPad T60 T61 R60 R61 Z60 Z61
SKU: 42W4633
Price: $125.51
04W3734 - IBM Lenovo i5-3320M Laptop System Board (Motherboard) for ThinkPad T420S
SKU: 04W3734
Price: $127.50
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.