Manifold Exhaust Marine Port for OMC GM V8 Top Rear Riser 912442

  • Part #: GLM51420

$223.95

  • Additional fees for this product
    Eastern States Manifold Shipping
    States this fee will apply to.
    AL, CT, DC, DE, FL, GA, IL, IN, KY, MA, MD, ME, MI, MS, NC, NH, NJ, NY, OH, PA, RI, SC, TN, VA, VT, WI, WV, ,
    $18.00
    Western States Manifold Shipping
    States this fee will apply to.
    AR, AZ, CA, CO, IA, ID, KS, LA, MN, MO, MT, ND, NE, NM, NV, OK, OR, SD, TX, UT, WA, WY, HI, ,
    $40.00

Port Side Log Style Manifold for an OMC. It will fit a small block GM from 1978 to about 1988. If you have an OMC GM egine with the riser on the top rear then this is the correct manifold for your application

Replaces OMC #s: 910144, 909279, 912442; Barr # OMC-1-912442; GLM # 51420; Sierra # 18-1903; Mallory # 9-40601 OEM: 912442
GLM Cast Iron Manifolds and Risers come with a 3-year limited warranty (PDF)!


SIE18-1903
Brand Model Year HP Serial # Notes
OMC Stern Drive 502AMLGDP 1988
OMC Stern Drive 502APRGDP 1988
OMC Stern Drive 504AMARY 1987
OMC Stern Drive 504AMFTC 1987
OMC Stern Drive 504AMLGDP 1988
OMC Stern Drive 504APARY 1987
OMC Stern Drive 504APFTC 1987
OMC Stern Drive 504APRGDP 1988
OMC Stern Drive 574AMFTC 1987
OMC Stern Drive 574AMLGDP 1988
OMC Stern Drive 574APARY 1987
OMC Stern Drive 574APFTC 1987
OMC Stern Drive 574APRGDP 1988
OMC Stern Drive 574APSRC 1987
OMC Stern Drive 574BMLGDP 1988
OMC Stern Drive 574BPRGDP 1988


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