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Block Riser Extension Exhaust Spacer 3 Inch for Mercruiser Center Rise 83-03

  • Part #: OSC3320

$79.95

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  • Additional fees for this product
    Eastern States Risers/Elbows/Spacers Shipping
    States this fee will apply to.
    AL, CT, DC, DE, FL, GA, IL, IN, KY, LA, MA, MD, ME, MI, MS, NC, NH, NJ, NY, OH, PA, RI, SC, TN, VA, VT, WI, WV, ,
    $12.00
    Western States Risers/Elbows/Spacers Shipping
    States this fee will apply to.
    AR, AZ, CA, CO, IA, ID, KS, MN, MO, MT, ND, NE, NM, NV, OK, OR, SD, TX, UT, WA, WY, ,
    $18.00

3" spacer used on Mercruiser applications. It goes between the manifold and the riser elbow. This item is used on all V6 and V8 Mercruisers with center riser manifolds from 1983 and up. It will fit Osco # 9745, Osco # 7114B & Osco # 9011 manifolds. It uses Osco # 8503-GR / Osco # 8503-GB / Osco # 8503-GO gaskets
Replaces: Mercury Quicksilver # 93322; Barr # MC-20-93320A3; GLM # 50300; Sierra # 18-1908; Mallory # 9-40530
NOTE: This item WILL NOT FIT Dry Joint Exhaust Systems.
Click here if you have a Dry Joint Exhaust
Genuine  Osco  Parts





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