L23895-001 / L25585-001 / NS85B00-17K18 - 5V 4-Pin Cooling Fan for HP Pavilion 15-CS 15-CW 15T-CS 15Z-CW

This internal cooling fan replaces L23895-001 and L25585-001 in compatible Pavilion 15-CS, 15-CW, 15T-CS and 15Z-CW notebooks equipped with the matching non-GTX discrete-graphics cooling system. It is a 5V radial blower with a four-wire, four-pin motherboard connector and is commonly identified by fan model NS85B00-17K18.

This listing includes one fan. Some compatible discrete-graphics configurations use two matching fans. Inspect both installed fans and compare the original label, housing, mounting points, cable routing and connector before ordering.

Technical Specifications

• Product Type: Internal notebook CPU / GPU cooling fan
• Fan Style: Radial / centrifugal blower
• Input Voltage: 5V DC
• Rated Current: 0.50A
• Nominal Power: 2.5W
• Connector: Four-pin wire-to-board connector
• Wiring: Four-wire
• Cooling Configuration: Non-GTX discrete graphics
• Documented Graphics Families: GeForce MX130, MX150, MX250 and select Radeon 535 configurations
• Chassis Reference: TPN-Q208
• Installation Type: Plug-in replacement; no soldering required
• Included: One cooling fan with attached cable and connector
• Not Included: Heatsink, mounting screws, thermal paste or thermal pads
• Drivers or Firmware Required: No

Interchangeable / Replacement Part Numbers

Confirmed fan references: L23895-001, L25585-001

Fan manufacturer and production references: NS85B00-17K18, 47G7BTP003, 47G7BTP003B

Chassis / regulatory reference: TPN-Q208

Normalized searchable forms: L23895001, L25585001, NS85B0017K18, 47G7BTP003B, TPNQ208

L23895-001 is the documented service-spare number for compatible non-GTX discrete-graphics configurations. L25585-001, NS85B00-17K18 and 47G7BTP003-series numbers may appear on the original production fan or parts records.

⚠️ Critical Graphics Configuration Notice

The Pavilion 15-CS and 15-CW chassis families were manufactured with several different cooling systems. Model-family compatibility alone does not guarantee the correct fan.

• L23895-001 / L25585-001: Matching non-GTX discrete-graphics fan
• L27902-001 / L25584-001 / NS85B00-17K24: Different UMA or integrated-graphics fan
• L35338-001: Different GTX cooling configuration
• L23897-001 / L23994-001: Related heatsink references, not interchangeable standalone fan numbers

Before ordering, compare the complete number on the original fan along with its housing shape, screw locations, cable length, wire colors and four-pin connector.

⭐➕ Need the UMA Integrated-Graphics Fan?

If the original fan is marked L27902-001, L25584-001 or NS85B00-17K24, use the separate UMA cooling-fan version:

L27902-001 L25584-001 UMA Cooling Fan

The UMA fan and the discrete-graphics fan on this page should not be substituted for one another.

⭐➕ Recommended Thermal Paste

Fresh thermal compound is required whenever the heatsink is removed or its original thermal interface is disturbed:

Shin-Etsu G751 High-Performance Thermal Grease

If the fan can be replaced without lifting the heatsink, thermal-paste replacement is normally unnecessary. Preserve any factory thermal pads unless suitable replacements are available.

✅ Confirmed Compatibility

Compatibility applies only to systems equipped with the matching non-GTX discrete-graphics cooling configuration and a fan matching L23895-001, L25585-001 or NS85B00-17K18.

Pavilion 15-CS Series

✔️ Pavilion 15-cs0000 through 15-cs0999 discrete-graphics configurations
✔️ Pavilion 15-cs1000 through 15-cs1999 discrete-graphics configurations
✔️ Pavilion 15-cs2000 through 15-cs2999 discrete-graphics configurations
✔️ Select Pavilion 15-cs3000-series discrete-graphics configurations
✔️ 15-cs0033TX, 15-cs0047TX, 15-cs0048TX, 15-cs0053CL, 15-cs0072WM, 15-cs0073CL
✔️ 15-cs1052TX, 15-cs1065CL, 15-cs2082TX
✔️ 15-cs3003CA, 15-cs3073CL, 15-cs3087TX, 15-cs3096NR, 15-cs3672CL, 15-cs3706NZ

Pavilion 15T-CS CTO Series

✔️ Pavilion 15t-cs000
✔️ Pavilion 15t-cs100
✔️ Pavilion 15t-cs200
✔️ Select Pavilion 15t-cs300 configurations

Pavilion 15-CW Series

✔️ Pavilion 15-cw0000 through 15-cw0999 discrete-graphics configurations
✔️ Pavilion 15-cw1000 through 15-cw1999 discrete-graphics configurations
✔️ 15-cw0000AX, 15-cw0001AX, 15-cw0007CA, 15-cw0008AX
✔️ 15-cw1000NS, 15-cw1001AX, 15-cw1006AX, 15-cw1009AX
✔️ 15-cw1063WM, 15-cw1068WM, 15-cw1095NR

Pavilion 15Z-CW CTO Series

✔️ Pavilion 15z-cw000 discrete-graphics configurations
✔️ Pavilion 15z-cw100 discrete-graphics configurations

The same notebook model family may have been manufactured with integrated graphics, non-GTX discrete graphics or GTX graphics. Always confirm the original fan number and physical design before ordering.

☑️ Key Features

☑️ Genuine OEM internal cooling fan
☑️ Direct replacement for L23895-001 and L25585-001
☑️ Common fan model NS85B00-17K18
☑️ 5V DC 0.50A electrical rating
☑️ Four-wire four-pin motherboard connection
☑️ Designed for matching non-GTX discrete-graphics configurations
☑️ System-controlled fan-speed operation
☑️ Plug-in installation with no soldering required
☑️ One fan included for individual replacement
☑️ No software driver or firmware installation required

⭐➕ Official Installation Resource

This official installation video demonstrates how to remove and replace the fans in Pavilion 15-cs0000, 15-cs1000, 15-cs2000 and 15-cs3000 notebook computers:

Watch the Official Pavilion 15-CS Fan Replacement Video

⚙️ Fit Notes

• Confirm the complete notebook model from the bottom label or system information.
• TPN-Q208 identifies the chassis family but is not sufficient by itself to select the correct fan.
• Match L23895-001, L25585-001, NS85B00-17K18 or the complete physical design of the original fan.
• Do not order this fan for UMA configurations using L27902-001, L25584-001 or NS85B00-17K24.
• Do not order this fan for GTX configurations requiring L35338-001.
• L23897-001 and L23994-001 are heatsink references and should not be treated as interchangeable fan numbers.
• This listing includes one fan. Inspect the notebook before ordering if its cooling system uses two fans.
• Disconnect the AC adapter and internal battery before beginning service.
• Remove the connector by its plug housing rather than pulling the wires.
• Clean accumulated dust from the vents and heatsink fins during installation.
• Hold the fan blades stationary when using compressed air to prevent overspeed damage.
• Apply fresh thermal compound if the heatsink is removed or disturbed.