Ignitions and Electrical› Ignition Components

STANDARD IGN

KNOCK SENSOR

$172.88

SKU: S092 KS449

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Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Standard Ignition KS449 is an ignition knock (detonation) sensor designed for Mercedes-Benz vehicles. It features a direct mounting type for secure attachment and a rectangular female connector with 4 terminals. This sensor helps maintain optimal engine performance by detecting and reporting engine knock or detonation.

With a male blade terminal type for reliable electrical connection, the KS449 ensures accurate knock detection. Its purpose includes optimizing ignition timing, preventing engine damage from knocking, and supporting the ECU for fuel efficiency and emissions compliance. Installation requires direct mounting and proper connector engagement, with no mounting hardware included.

Fitment

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Specifications

BrandSTANDARD IGN
Part NumberS092 KS449

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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