Sierra 18-4388 MerCruiser Intake Manifold Gasket Set
- Brand:
- Sierra
- Part no:
- 18-4388
Where to buy
View on Amazonpaid link
Sierra 18-4388 is a gasket set for MerCruiser GM 262 CID engines rated at 175, 185 and 205 HP, 4.3L. The kit goes beyond the intake manifold gasket, adding an oil pan gasket and a one-piece rear main seal among other items. It includes exhaust manifold gaskets in packs of 2 and valve stem seals in a pack of 8. Sierra cross-references it to MerCruiser 27-11977A88 and 27-11977A92.
Our take
The 18-4388 is a full kit, not a single gasket: it carries an oil pan gasket, valve stem seals in a pack of 8, exhaust manifold gaskets and a one-piece rear main seal. That breadth means one kit number covers several joints, but the fit is tied to GM 262 CID engines at 175, 185 and 205 HP.