Replacement for RB1-2978: Drop-In Alternatives We Stock
Looking for a replacement for the RB1-2978 (RB1-2978 - HP Power Cord Door for LaserJet 4L /4ML)? Pro Disk Network ships HP 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 RB1-2978
| SKU | RB1-2978 |
|---|---|
| Product | RB1-2978 - HP Power Cord Door for LaserJet 4L /4ML |
| Current price | $291.79 |
| Stock status | In Stock |
| Detail page | View RB1-2978 › |
Drop-in replacements for RB1-2978
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.
RM1-2978-000 - HP 250-Sheets Paper Input Tray-2 Assembly for LaserJet M5025 / M5035 Series Multifunction Printer
SKU: RM1-2978-000
Price: $112.32
RM1-2978 - HP 250-Sheets Paper Input Tray-2 Assembly for LaserJet M5025 / M5035 Series Multifunction Printer
SKU: RM1-2978
Price: $112.32
RM1-2978-000CN - HP 250-Sheets Paper Input Tray-2 Assembly for LaserJet M5025 / M5035 Series Multifunction Printer
SKU: RM1-2978-000CN
Price: $382.59
RM1-4878-000 - HP Rear Door CP2025dn / CP2025x / CM2320fxi with Inner Door RM1-4876
SKU: RM1-4878-000
Price: $107.96
RM1-4878-000CN - HP Rear Door CP2025dn / CP2025x / CM2320fxi with Inner Door RM1-4876
SKU: RM1-4878-000CN
Price: $107.96
0957-2109 - HP 12 Volts 1A AC Adapter Power Supply for LaserJet 4 LaserJet 4L LaserJet 4P
SKU: 0957-2109
Price: $480.21
RB2-6020 - HP Door Spring Support Assembly for LaserJet Enterprise M830 / M806 series
SKU: RB2-6020
Price: $68.54
RB2-6020-000 - HP Door Spring Support for LaserJet M806 / M830 Printer
SKU: RB2-6020-000
Price: $68.54
PF2282P352NI - HP ADF Door Cover Spring for LaserJet M4730 / M4345 / M4349 Series
SKU: PF2282P352NI
Price: $68.54
RB2-6020-000CN - HP Door Spring Support for LaserJet M806 / M830 Printer
SKU: RB2-6020-000CN
Price: $68.54
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.