Sensor Knock - OMC I / O / Mercruiser / Volvo GM 7.4L & 8.2L OEM# 18-7703 | WSM 778-152

Sensor Knock OMC I/O / Mercruiser / Volvo GM 7.4L & 8.2L OEM# 18-7703

This WSM sensor knock is a quality aftermarket replacement part designed for OMC I/O/Mercruiser/Volvo GM 7.4L & 8.2L.

It replaces selected OEM reference numbers including 18-7703, 3854512, 805544T, 8M0077616 and is suitable for service, repair and rebuild work.

Key Features

• Quality aftermarket replacement part from WSM
• Engineered for dependable fit, function and service life
• Designed for marine and powersports repair and maintenance
• Compatible with 1 listed fitment
• Replaces selected OEM reference numbers listed below

Product Details

• Brand: WSM
• WSM Part Number: 778-152
• Product: Sensor Knock
• OEM Reference: 18-7703, 3854512, 805544T, 8M0077616
• Application: OMC I/O/Mercruiser/Volvo GM 7.4L & 8.2L

Product Fitment

This part is suitable for the following models:

• OMC I/O/Mercruiser/Volvo GM 7.4L & 8.2L

Why Buy WSM

WSM is a trusted manufacturer of aftermarket marine and powersports parts, known for dependable quality, strong fitment coverage and workshop-ready replacement components.

You May Also Need

Browse related parts for compatible models:

• Water Pump Impeller OMC Cobra OEM# 0777128 – 700-130
• Water Pump Service Kit OMC Cobra OEM# 18-3212 – 725-130
• Sea Water Pump OMC / Volvo OEM# 3860703 – 750-800
• Sea Water Pump OMC / Volvo W/Serptine Belt OEM# 21214599 – 750-825

Please use the fitment guide, OEM references and images to confirm this is the correct part before ordering.