BS5005HS-U4Q + BS5005HS-U3J - CPU + GPU Cooling Fan Kit for MSI Stealth GS66 WS66 11UG 11UE 11UH MS-16V4 11th Gen 12th Gen

Restore proper airflow and cooling performance with this dual-fan replacement kit for the MSI Stealth GS66 / WS66 platform. This set includes both the CPU fan and GPU fan and is intended for the MS-16V4 chassis used on 11th Gen and 12th Gen CPU versions only. Fans use a 4-pin power connection.

Technical Specifications

• Fan kit part numbers: BS5005HS-U4Q (CPU) + BS5005HS-U3J (GPU)
• Type: Laptop internal cooling fan set (CPU + GPU)
• Power connection: 4-pin (each fan)
• System chassis/platform: MS-16V4 (Stealth GS66 / WS66)
• CPU generation fitment: 11th Gen + 12th Gen versions only
• Kit contents: 2 fans (CPU fan + GPU fan)

Interchangeable / Replacement Part Numbers

• BS5005HS-U4Q (CPU fan)
• BS5005HS-U4J (alternate marking seen on some CPU fans)
• BS5005HS-U3J (GPU fan)
• BS5005HS-U4Q + BS5005HS-U3J (full kit)
• BS5005HS-U3I (CPU fan used on some MS-16Q4 GS65/GS65VR configurations — not the same as BS5005HS-U4Q)

✅ Confirmed Compatibility

Please note that the following list is not exhaustive. Compatibility depends on your system's specific configuration. It's essential to verify compatibility with your system or enclosure manufacturer prior to installation.

• ✔️ MSI Stealth GS66: 11UG, 11UE, 11UH, MS-16V4
• ✔️ MSI Stealth WS66: 11UG, 11UE, 11UH, MS-16V4
• ✔️ MSI Stealth GS65: GS65 Series, GS65VR Series, MS-16Q4 (BS5005HS-U3J fan fitment referenced for MS-16Q4)

☑️ Key Features

☑️ Complete CPU + GPU fan replacement kit (both fans included)
☑️ 4-pin power connection
☑️ Designed for MSI Stealth GS66 / WS66 MS-16V4 (11th/12th Gen versions)
☑️ Helps resolve overheating, loud/grinding fans, weak airflow, and fan errors

⚙️ Fit Notes

• MS-16V4 only (11th Gen + 12th Gen CPU versions). This kit is not intended for earlier GS66/WS66 variants that use different fan layouts/part numbers.
• Not fit for MS-16Q2. If you’re working on a GS65/GS65VR platform, confirm the chassis code before ordering.
• If you’re already inside the unit, it’s a good time to refresh thermal compound as needed — use Shin-Etsu G751 for best results.