YS Parts No.OEM Parts No.Fit for EngineSize and SpecificationCategory
YS18-390418-3904Sierra 18-3904 Piston Rings Replaces 0394930Sierra 18-3904 Piston Ring for Johnson and Evinrude Engines

Sierra replacement engine parts are designed to meet OEM specifications.

Standard 3.5 Bore
Fits:

85-300 HP 4 & 6 cyl


Interchangeable with:

GLM
24210
Johnson/Evinrude Outboard
394930
Mallory
9-54416
Wiseco
3500KD		EVINRUDE OUTBOARD OMC EAGLE & SEA DRIVE PISTONS
YS18-390518-3905Sierra 18-3905 Piston Rings Replaces 0396504Sierra 18-3905 Johnson/Evinrude Piston Rings

Sierra high-quality engine parts are designed to meet OEM specifications.

Bore Size: 3.530
Interchangeable with:

GLM
24300
Johnson/Evinrude Outboard
396504
Mallory
9-54418
9-54422
Wiseco
3530KD		EVINRUDE OUTBOARD OMC EAGLE & SEA DRIVE PISTONS
YS18-390618-3906Sierra 18-3906 Piston RingsSierra 18-3906 Piston Rings

Sierra high-quality marine parts are designed to meet OEM specifications. Fit Johnson/Evinrude Outboards and OMC Stern Drives.

Bore Size: 3.520
Interchangeable with:

Johnson/Evinrude Outboard
439001
396503
385662
Mallory
9-54417
OMC Stern Drive
396503
385662
439001
Wiseco
3520KD		EVINRUDE OUTBOARD OMC EAGLE & SEA DRIVE PISTONS
YS18-410118-4101Sierra 18-4101 Piston KitDESCRIPTION
Piston Kit - Special Order est. 10 Days
California Residents: warning sign WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov		EVINRUDE OUTBOARD OMC EAGLE & SEA DRIVE PISTONS
YS18-410218-4102Sierra 18-4102 Piston KitPiston Kit - Special Order est. 10 Days
California Residents: warning sign WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov		EVINRUDE OUTBOARD OMC EAGLE & SEA DRIVE PISTONS

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