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    juliahight's Avatar
    juliahight Posts: 1, Reputation: 1
    New Member
     
    #1

    Feb 15, 2010, 10:10 AM
    Can I replace a Briggs & Stratton engine model 31F707 (17hp) with a 31C707 (17.5hp)?
    My B&S 31F707 17hp engine locked up and can't get it to turn, so looking to replace the engine with a B&S 31C707 17.5 hp since it is less than half the price of an exact replacement. Does anyone know if this will work? Or what I need to look for specifically to see if it will fit?
    crigby's Avatar
    crigby Posts: 4,343, Reputation: 107
    Outdoor Power Equipment Expert
     
    #2

    Feb 15, 2010, 02:27 PM

    Hi,
    The key point is crankshaft dimensions with fuel pump, charging and muffler considerations having some influence. Try the following:
    Briggs & Stratton Replacement Vertical Engines

    Briggs Engine Search by Small Engine Warehouse

    briggs_v

    17-21 HP Briggs & Stratton Vertical Shaft Engines - On sale with free shipping from Tulsa Engine Warehouse
    And all this info should say a definite "maybe" and probably is more true, but that Type number also comes into play as it tells the "rest of the story."
    Peace,
    Clarke

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