YS Parts No.OEM Parts No.Fit for EngineSize and SpecificationCategory
YS18-387918-3879Sierra 18-3879 Head Gasket Replaces 27-879150140Sierra 18-3879 Head Gasket

Sierra replacement head gasket for Mercruiser Stern Drives, OMC Stern Drives, and Volvo Penta engines.

Fits: GM 262 (4.3L) CID Engines
Interchangeable with:

Crusader
33408
GLM
36100
Johnson/Evinrude Outboard
912227
0914930
3854299
Mallory
9-63707
Mercruiser Stern Drive
27-816460
27-11986
27-879150140
27-42744
OMC Stern Drive
912227
3854299
914930
910833
Volvo Penta
912227
914930
3854299		MERCRUISER HEAD GASKETS
YS18-387818-3878Sierra 18-3878 Head Gasket Replaces 27-13709Sierra 18-3878 Head Gasket for OMC, Mercruiser, and Chrysler

Sierra replacement engine parts are designed to meet OEM specifications. Sierra 18-3878 Head Gasket fits MCM 3.7L engines (1976-1989).

For 460 Ford
Interchangeable with:

Chrysler Inboard
4417375
GLM
36120
Mallory
9-63702
9-63711
Mercruiser Stern Drive
27-13709T
27-13709
27-92166
27-79986
27-74264
27-921661
OMC Stern Drive
912766		MERCRUISER HEAD GASKETS
YS18-387718-3877Sierra 18-3877 Head GasketSierra 18-3877 Head Gasket for 7.4L Mercruiser, OMC, Volvo

Sierra high-quality engine parts are designed to meet OEM specifications. For Mercruiser and OMC Stern Drives.

Fits MCM/MIE GM V-8 (427, 454 & 482 cid) engines (1977-1992)
Interchangeable with:

Chris-Craft
16.50-00259
Crusader
30266
GLM
36110
Mallory
9-63701
Mercruiser Stern Drive
27-8M0049045
27-13687
27-13218
27-19315
27-49104
27-61224
27-97529
OMC Stern Drive
914849		MERCRUISER HEAD GASKETS
YS18-388118-3881Sierra 18-3881 Head GasketSierra 18-3881 Head Gasket for 4.1L GM 6 cyl Engines

Sierra high-quality engine parts are designed to meet OEM specifications. Fits Mercruiser and OMC Stern Drives.

For GM 250 (4.1L) CID (6 cyl) engines
Interchangeable with:

GLM
36140
Mallory
9-63705
Mercruiser Stern Drive
27-72622
27-47453
27-39164
24-34274
OMC Stern Drive
908237
California Residents:		MERCRUISER HEAD GASKETS

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