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Boat lower unit
Boat lower unit: buying guides, advice and tutorials
Welcome to our Boat Lower Unit resource center. Find buying guides, advice and tutorials to better understand the role of the lower unit, sterndrive leg, transmission, propeller, gear oil, seals, anodes, impeller, propeller shaft and maintenance operations linked to the lower part of the engine. Each article offers clear explanations, step-by-step guidance and DAM Marine part references.
Our best boat lower unit guides
Propeller shaft lower unit: terminology, types & diagnosis (short/long)
Synonyms, shaft types, short/long references and checks to know whether it is bent or damaged. A practical guide to avoid propeller failures.
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Sterndrive universal joint: wear signs and repair tips
Sterndrive universal joint: signs of wear, average repair cost and when to replace both sides. Tips to avoid breakage and vibrations.
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Propeller shaft lower unit: terminology, types & diagnosis (short/long)
Synonyms, shaft types, short/long references and checks to know whether it is bent or damaged. A practical guide to avoid propeller failures.
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Sterndrive universal joint: wear signs and repair tips
Sterndrive universal joint: signs of wear, average repair cost and when to replace both sides. Tips to avoid breakage and vibrations.
Read the articleI can’t find a solution to my problem
Can’t find an answer about your boat lower unit? Email us at contact@dam-marine.com or call us on 04.94.27.63.62. Explain your situation: boat or engine type, symptoms, part references, lower unit model or issue encountered. We will look for the best solution with you.