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Black rectangular laptop cooling fan with cable connector

Fans

Fans case fan for Lenovo ThinkPad S420 E420S KSB05105HA AJ92

SKU CH-HVMA-MVWTJ

Replacement cooling fan compatible with Lenovo ThinkPad S420 and E420S models

  • Compatible with Lenovo ThinkPad S420 and E420S models
  • Replacement fan matches part numbers KSB05105HA and AJ92
  • New condition ensures reliable cooling performance
  • Designed for ThinkPad and IBM laptop chassis

Replacement fan for ThinkPad S420 and E420S

This cooling fan fits Lenovo ThinkPad S420 and E420S laptops. It matches part numbers KSB05105HA and AJ92. The component is supplied new and ready for installation. It is intended for owners of these specific models who need to replace a worn or noisy cooler.

Direct-fit design simplifies the swap

The fan aligns with the original mounting points and connector so no adapter is required. Disassembly of the keyboard deck or palm rest is usually necessary to reach the heatsink assembly. Take care not to strain the fragile ribbon cables during removal. Builders who need a dual-fan setup or a different voltage cannot use this single-unit part.

How it compares

Measured against everything we stock in PC Cooling Fans, at today’s prices. Recalculated every night.

Price $17.99
Cheaper than about 57% of the 8,339 comparable items (median $19.99).

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Specifications

No published specifications for this item yet.

Questions about this item

How do I confirm the KSB05105HA AJ92 fan is spinning correctly after installing it in my ThinkPad S420 E420S?

Power on the laptop and listen for steady airflow from the side vent; the BIOS hardware monitor should report a stable RPM reading for the system fan.

What comes with the KSB05105HA AJ92 replacement fan and is any extra hardware needed for the ThinkPad S420 E420S?

The package contains the cooling fan assembly with its original connector; no additional screws or cables are required for installation.

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