

Diesel Engine Parts
Intake Valve Seat Insert
Cylinder head intake valve seat insert, 42.6 mm outer diameter, for Caterpillar C9 and C9.3 diesel engines.
SK-00084 255- 8666/5648811 Caterpillar
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Description
Intake Valve Seat Insert
Sea Keepers Item CodeSK-00084
Part Number255- 8666/5648811
ManufacturerCaterpillar
ModelCompatible Caterpillar C9 and C9.3 engines
Parent EquipmentCaterpillar C9 and C9.3 diesel engines, including C9.3 marine and generator set engines and SR4B generators (Ship & Submarine ERP tag; exact vessel engine not given in ERP)
SpecificationsGenuine Caterpillar part number 255-8666, Insert-Valve Seat (intake). It is pressed into the cylinder head to form the seat on which the intake valve closes; Cat gives 42.6 mm outside and 36.5 mm inside diameter. Superseded by 564-8811, which the Cat Parts Store names Intake Valve Seat Insert and which is used 12 per head in C9.3 cylinder head assembly 491-1831. Matching exhaust insert: 262-2959 / 564-8812 (SK-00085). Confirm engine model and serial number compatibility against the manufacturer's parts catalogue before ordering.
Product Master CategoryEngine Core Components (Diesel & Petrol)
Product Master SubcategoryDiesel Engines & Components
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