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Add to CartSierra replacement O-ring for Mercury and Mercruiser engines.
Interchangeable with:
California Residents: 
WARNING
Cancer and Reproductive Harm -
P65Warnings.ca.gov
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Sierra 18-7440-1-9 O-Ring (Pkg Of 2) Sierra replacement O-ring. I.D.: 0.799" or 20.3mm Width: 0.103" or 2.6mm Package of 2 Interchangeable with: GLM 81170 Johnson/Evinrude...
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Sierra 18-7156-9 O-Ring (Pkg Of 5) Sierra replacement O-ring for Mercury, Mercruiser, Johnson/Evinrude, and OMC engines. Supersedes 18-7156 I.D.: 1.185" or 30.1mm Width: 0.100" or 2...
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Sierra 18-7134-9 O-Ring (Pkg Of 5) Sierra replacement O-ring. I.D.: 0.500" or 12.7mm Width: 0.100" or 2.5mm Package of 5 Interchangeable with: Chrysler/Force/US...
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Sierra 18-7411-9 O-Ring (Pkg Of 5) Sierra replacement O-ring for Mercury, Mercruiser, Johnson, and Evinrude engines. I.D.: 1.250" or 3.2mm Width: 0.100" or 2.5mm Package of 5 Interchangeable...
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Sierra 18-7198-9 O-Ring (Pkg Of 5) Sierra replacement O-ring for Mercruiser, Chrysler, Mercury, Honda, and OMC engines. I.D.: 1.430" or 36.3mm Width: 0.100" or 2.54mm Package of...
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Sierra 18-7432-9 Yamaha O-Ring (Pkg Of 5) Sierra replacement O-ring for Yamaha Outboards. Package of 5 Interchangeable with: Yamaha Outboard 93210-32738-00
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Sierra 18-7108-9 O-Ring (Pkg Of 5) Sierra replacement O-ring for Johnson/Evinrude/OMC engines. I.D.: 2.550" or 64.8mm Width: 0.100" or 2.5mm Package of 5 Interchangeable...
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Sierra 18-7401-9 O-Ring (Pkg Of 5) Sierra replacement O-ring for OMC Stern Drives. I.D.: 2.485" or 63mm Width: 0.100" or 2.5mm Package of 5 Interchangeable...
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