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Specially designed to meet the unique requirements of modern 4-stroke recreational engines with or without catalyst systems. ZDDP anti-wear additive prevents phosphorus depletion to extend catalyst life and provide excellent anti-wear protection. Sierra Catalyst Compatible Oils provide leading wear protection and deposit control for engine longevity, corrosion protection from infrequent use and environmental contamination, enhanced detergent properties to prevent sludge formation, and reduced ending friction to maintain performance. Priced each, sold in case quantities only.
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57.69 |
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A special blend of synthetic base oil and balanced additive system that exceeds the FC-W requirements for marine engine oil. Recommended for gasoline and diesel inboard and sterndrive engines. Provides superior engine protection during startups, operation and storage. Reduces friction and wear for extended engine life with longer lubrication effectiveness than mineral oils. Reduces oil consumption and improves fuel economy. Sold in case quantities only, priced each.
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73.09 |
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Blended with premium grade synthetic and mineral based stock combined with superior designed additives formulated for the extreme rigors of the marine environment. Features superior corrosion protection, advanced lubrication for reduction of wear to internal engine components and minimized piston ring deposits. Extensively tested for outstanding performance. Sold in case quantities only. Priced each.
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83.69 |
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Specially designed to meet the unique requirements of modern 4-stroke recreational engines with or without catalyst systems. ZDDP anti-wear additive prevents phosphorus depletion to extend catalyst life and provide excellent anti-wear protection. Sierra Catalyst Compatible Oils provide leading wear protection and deposit control for engine longevity, corrosion protection from infrequent use and environmental contamination, enhanced detergent properties to prevent sludge formation, and reduced ending friction to maintain performance. Priced each, sold in case quantities only.
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74.39 |
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Premium quality motor oil formulated to meet or exceed warranty requirements for 4-stroke stern drive and inboard engines. This oil offers excellent detergency, anti-oxidants, antiwear and corrosion protection. Meets or exceeds quality performance API SJ, CF-4, CH-4. Recommended for use in Mercruiser, OMC and Volvo Penta. Sold in case quantities only, priced each.
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73.19 |
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Ultra-high performance engine oil with enhanced detergent package to suspend and prevent sludge. Reduces friction to maintain high performance and prevents thermal and oxidation break down under extreme temperatures. High shear stability maintains viscosity to prevent excessive thinning in high performance applications. Proprietary additive package with advanced ZDDP technology to prevent phosphorus depletion, extending catalyst life while maintaining anti-wear protections. Meets and or exceeds FC-W Catalyst and FC-W specifications as well as API SM category requirements. Replaces Honda, Indmar, Ilmor and PCM.
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69.99 |
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Ultra-high engine performance oil with enhanced detergent package to suspend and prevent sludge. Reduces friction to maintain high performance and prevents thermal and oxidation break down under extreme temperatures. High shear stability maintains viscosity to prevent excessive thinning in high performance applications. Proprietary additive package with advanced ZDDP technology to prevent phosphorus depletion, extending catalyst life while maintaining anti wear protections. Meets and or exceeds FC-W Catalyst and FC-W specifications as well as API SM category requirements. Replaces Yamalube, MerCruiser, Indmar, Mobile 1, Ilmor, Indmar, PCM and MasterCraft.
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93.39 |
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Specifically formulated for the heavy duty inboard marine market, including cruisers and towboats calling for a 15W-40. Suitable for fuels on any sulfur level. Not for use in gasoline engines equipped with catalytic converters. Meets API Service classification up to CK-4 and performance specifications for API service classification SM. Replaces Shell Rotella T4, Delo 400, MerCruiser, Indmar, Pleasurecraft, Crusader, Volvo Penta and MasterCraft. Priced each, sold in case quantities only.
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50.29 |
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Sierra Marine Engine Parts & Drive Parts
Sierra Marine is a trusted name in aftermarket replacement boat engine and drive parts. Sierra’s products are designed and engineered to exceed the high horsepower demands of today’s engines in the harshest marine environments. All Sierra products meet or exceed the original equipment part it replaces.
If you need help finding a part, we need, Make, Model, Year, Horsepower, and Serial number of your engine.
Warning: We can no longer ship engine parts International or to California Due to Prop 65.
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A special blend of synthetic base oil and balanced additive system that exceeds the FC-W requirements for marine engine oil. Recommended for gasoline and diesel inboard and sterndrive engines. Provides superior engine protection during startups, operation and storage. Reduces friction and wear for extended engine life with longer lubrication effectiveness than mineral oils. Reduces oil consumption and improves fuel economy. Sold in case quantities only, priced each.
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16.39 |
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Sierra TC-W3 is a high performance lubricant that has been designed to meet and exceed all (Domestic & Import) engine manufacturers warranties. Exceeds JASO, ISO, API and NMMA for advanced generation 2 cycle lubricants. Priced each, sold in case quantities only.
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14.19 |
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High performance lubricant designed to meet and exceed all Domestic and Import engine manufacturers' warranties. Exceeds JASO, ISO, API and NMMA for advanced generation 2 cycle lubricants. Protects engine against heat, friction and rust. Formulated specifically for BRP E-Tec and most other high performance 2-stroke marine engines. Priced each, sold in case quantities only.
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19.79 |
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Blended with premium grade synthetic and mineral based stock combined with superior designed additives formulated for the extreme rigors of the marine environment. Features superior corrosion protection, advanced lubrication for reduction of wear to internal engine components and minimized piston ring deposits. Extensively tested for outstanding performance. Sold in case quantities only. Priced each.
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17.89 |
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Highest quality full synthetic oil, NMMA certified for use in 4-stroke OB and stern drive applications. Sold in case quantities only. Priced each.
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20.79 |
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Synthetic marine formulation reduces operating friction for increased performance and protection of gears, bearings and other Gearcase components. Recommended for use in high performance and high load operating conditions in both outboard and I/O lower unit gear cases, 75HP and above, where a GL-5 class lubricant is required. 80W90
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18.59 |
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