Sierra Intake Manifold Gasket Set 18-4388, Replaces 27-11977A88 & 27-11977A92, for GM 4.3L 262 CID 175/185/205 HP MerCruiser Engines

Sierra Intake Manifold Gasket Set 18-4388, Replaces 27-11977A88 & 27-11977A92, for GM 4.3L 262 CID 175/185/205 HP MerCruiser Engines

$396.05
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Sierra Intake Manifold Gasket Set 18-4388, Replaces 27-11977A88 & 27-11977A92, for GM 4.3L 262 CID 175/185/205 HP MerCruiser Engines
  • Sierra Intake Manifold Gasket Set 18-4388, Replaces 27-11977A88 & 27-11977A92, for GM 4.3L 262 CID 175/185/205 HP MerCruiser Engines
  • Sierra Intake Manifold Gasket Set 18-4388, Replaces 27-11977A88 & 27-11977A92, for GM 4.3L 262 CID 175/185/205 HP MerCruiser Engines
Sierra Intake Manifold Gasket Set 18-4388, Replaces 27-11977A88 & 27-11977A92, for GM 4.3L 262 CID 175/185/205 HP MerCruiser Engines

Sierra Intake Manifold Gasket Set 18-4388, Replaces 27-11977A88 & 27-11977A92, for GM 4.3L 262 CID 175/185/205 HP MerCruiser Engines

$396.05

The Sierra 18-4388 Intake Manifold Gasket Set is a complete gasket kit designed to seal the intake manifold on GM 262 CID (4.3L) marine engines rated 175, 185, and 205 HP. This set includes the 18-3879 head gasket, giving installers the matched components needed for a full intake and head resealing job in a single package rather than sourcing gaskets separately.

The gasket set cross-references directly to Mercury Marine part numbers 27-11977A88 and 27-11977A92, making it a straightforward replacement for engines originally fitted with those OEM gaskets. It is built for GM 262 CID / 4.3L MerCruiser stern drive engines and is compatible with engines from 1985-1993. As with all Sierra engine gaskets, it is manufactured to seal reliably against fuel, oil, and coolant exposure in a marine engine compartment.

Specifications

  • Brand: Sierra
  • Manufacturer Part Number: 18-4388
  • Included Components: Intake Manifold Gasket Set, 18-3879 Head Gasket
  • Color: White
  • Weight: 2.42 pounds
  • UPC: 030999563514

Fitment

  • GM 262 CID Engine, 175, 185 & 205 HP, 4.3L
  • MerCruiser Stern Drive, 1985-1993

Replaces (OEM)

  • 27-11977A88
  • 27-11977A92

Frequently Asked Questions

What does the Sierra 18-4388 intake manifold gasket set fit? It fits GM 262 CID (4.3L) engines rated 175, 185, and 205 HP, specifically MerCruiser stern drive engines built between 1985 and 1993.

What OEM part numbers does 18-4388 replace? The 18-4388 gasket set cross-references to Mercury Marine intake manifold gasket sets 27-11977A88 and 27-11977A92.

Does this set include a head gasket? Yes, Sierra 18-4388 includes the 18-3879 head gasket along with the intake manifold gaskets, so both are covered in one purchase.

Is the Sierra 18-4388 a direct replacement for the Mercury Marine gasket set? Yes, it is built to the same fitment and cross-references directly to Mercury Marine 27-11977A88 and 27-11977A92 for GM 262 CID / 4.3L engines.

How much does the 18-4388 gasket set weigh? The Sierra 18-4388 intake manifold gasket set weighs 2.42 pounds.

What color is the 18-4388 gasket material? The gasket set is white in color.

Will 18-4388 work on a 250 CID inline 6-cylinder engine? No, that application uses a different Sierra part number; 18-4388 is specific to GM 262 CID (4.3L) engines rated 175, 185, and 205 HP.

What is the UPC for the Sierra 18-4388 gasket set? The UPC for Sierra 18-4388 is 030999563514.

Can I use 18-4388 on a non-MerCruiser GM 4.3L engine? Sierra 18-4388 is specified for GM 262 CID / 4.3L MerCruiser stern drive engines rated 175, 185, and 205 HP; fitment outside that application is not confirmed.

Does the 18-4388 kit include installation hardware or bolts? The included components are the intake manifold gasket set and the 18-3879 head gasket only; no additional hardware is listed.

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