Indmar 8.1L Knock SensorProduct Description: Indmar S551291 8. 1L Replacement Knock Sensor. Indmar S551291 8. 1L Replacement Knock Sensor Use Only For the 8. 1L Engine. Product Specs: Use Only For the 8. 1L Engine. Other Engines Should Use Part # S556015 Sold Individually

It is suggested to replace mounting bolts since they are a speciality stretch bolt

Replacement Positive Crank Ventilation Valve or PCV Valve for most Indmar

Fits on all LT1 Mastercraft Corvette engines

even in cramped locations

6-7/8" Closed Length

“the mighty repair kit

Recommend Replacing Impeller Annually or every 100 hours

Number on the back of ECM Delhi 12597744

The lightweight housing also reduces the loaded weight on the shaft and seal

Machined Hole for Fluid flow through bolt

Commonly found on older Ford 302 & 351 Engines

dependable sealing