Mercury Marine 92-802837Q1 replacement parts
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Price: $7.95
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Part # 18-9400-2
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Mercury Marine 92-857389A1 Sierra 4-stroke Oil
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Part # 18-9400-4
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Oil-25W40 Fcw I/O-I/B 5Qt /Cs
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(4 count)
Price: $147.19
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Part # 18-9400-4
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(Discontinued)
Sierra Marine Diesel Oil
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Price: $47.34
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Part # 18-9410-4
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Price: $1,707.99
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Part # 18-9410-7
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Marine Sterndrive 25W40 Synthetic Blend Oil, 1 Quart - Sierra
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Part # 18-9440-2
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Marine Sterndrive 25W40 Synthetic Blend Oil, 5 Quart Container - Sierra
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Price: $39.92
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Part # 18-9440-4
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Synth Mercruiser Oil 5 Qt
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Price: $161.03
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Part # 18-9440-4
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Sae 30 Full Syn Oil 32Oz - 18-9410-2 - Sierra
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Price: $10.48
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Part # 18-9410-2
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Sierra
Description Customer Reviews Customer Questions & Answers Shipping
  • Has been formulated to provide excellent lubrication and corrosion protection.
  • Stern drive and inboard engines operate under high load and running stresses.
  • This product is developed for the marine environment and will out perform standard 4-cycle automotive engine oils.
  • Sierra's 25W-40 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.
    • Average Customer Review for Marine 25W40 Sterndrive Oil Quart - 18-9400-2 - Sierra
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    Based On 2 Reviews | Write Review
    Full StarFull StarFull StarFull StarFull Star
    Great product for a fair price.
    by Frank from Baden, Pennsylvania on October 01, 2015
    Using the product for many years without any issues.
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    drive oil
    by William from Tinley Park, Illinois on July 09, 2014
    it's good stuff
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    Average Customer Review for Sierra 18-9400-4 25W40 4-Stroke Sterndrive Oil- 5 Quarts
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    Based On 2 Reviews | Write Review
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    Awesome price for top rated oil
    by Sarah from Granby, Colorado on October 24, 2016
    Fast 2 day shipping and great price for oil!
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    Full StarFull StarFull StarFull StarFull Star
    Excellent product
    by Nick from Overland Park, Kansas on October 16, 2011
    Excellent product
    (0 of 2 people found this review helpful)
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    Average Customer Review for Marine Sterndrive 25W40 Synthetic Blend Oil, 5 Quart Container - 18-9440-4 - Sierra
    Full StarFull StarFull StarFull StarFull Star
    Based On 2 Reviews | Write Review
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    Sierra - synthetic blend 25w-40
    by Kirk from Bellingham, Washington on November 23, 2014
    meets the standards required from Mercruiser so that's what important to me. Oh and the price is much better too, thanx iboat.
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    Sierra - synthetic blend 25w-40
    by Kirk from Bellingham, Washington on November 23, 2014
    meets the standards required from Mercruiser so that's what's important to me. Oh and the price is much better too, thanx iboat.
    Was this review helpful?
    Q:
    Have used Quicksilver Gear Lube SAE 90 #92-858064Q01, does the Sierra SAE 30 #18-9410-2 provide same protection and quality?? Thanks, Roger Bell 8/08/15?
    A:
    The technicians at Sierra say that this oil will perform just as well, if not better than the Quicksilver gear lube. It provides excellent corrosion resistance, and lubrication. If you have any other questions, please contact the number at the top of the webpage.

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