Lenovo 4F17A12358 SR635 1U FAN Module

Lenovo 4F17A12358 SR635 1U Fan Module

Overview

The Lenovo 4F17A12358 is a 1U rack fan module designed as a direct replacement or spare cooling component for the Lenovo SR635 server platform. At 0.50 lb and measuring 7.50 x 5.25 x 2.50 in, the 4F17A12358 slots into the standard 1U chassis bay — keeping thermal management intact without requiring a full service intervention or extended downtime. In rack-dense environments where server uptime is non-negotiable, having a verified spare on hand means a failed fan unit gets swapped in minutes rather than waiting on an emergency procurement cycle.

Compatibility

The 4F17A12358 is designed for the Lenovo ThinkSystem SR635 1U rack server. Verify your SR635 chassis revision and existing fan bay count against Lenovo's hardware maintenance guide before ordering — the SR635 line has seen configuration variants across processor generations, and confirming the correct fan module part number for your specific build avoids a mismatch. If you are sourcing cooling components for a broader server infrastructure refresh, cross-reference the 4F17A12358 against your SR635 service manual to confirm slot compatibility.

Installation Notes

The 1U form factor dictates tool-less hot-swap installation on supported SR635 configurations — confirm whether your chassis revision supports hot-swap fan replacement before attempting in a live environment. Handle the module by its housing rather than the impeller assembly to avoid pre-installation damage. UNSPSC code 40101604 classifies this as an industrial fan and blower component, consistent with rack server cooling hardware standards.