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Outdrive - OMC

Gen III Oval Riser Gasket
Your Price:
$18.99

Gen III Oval Riser Gasket

520-SM408

Gen III Oval Riser Gasket (Sold Each)

If you find yourself in need of maintenance accessories - we've got them! Gaskets, Clamps, Manifolds, Sealers.  We've got it all!


Gen III Oval Riser Gasket Open Center
Your Price:
$18.99

Gen III Oval Riser Gasket Open Center

520-01-8300004-00

Gen III Oval Riser Gasket Open Center (Sold Each)

If you find yourself in need of maintenance accessories - we've got them! Gaskets, Clamps, Manifolds, Sealers.  We've got it all!


Gen III Tailpipe Gasket
Your Price:
$13.99

Gen III Tailpipe Gasket

520-SM407

Gen III Tailpipe Gasket (Sold Each)

If you find yourself in need of maintenance accessories - we've got them! Gaskets, Clamps, Manifolds, Sealers.  We've got it all!


Hardin Manifold to Riser Gasket
Your Price:
$9.99

Hardin Manifold to Riser Gasket - Mercury 27-848147

420-906321

Hardin Manifold to Riser Gasket, Replaces Mercury OEM# 27-848147

Fits: BBC, SBC and Ford manifolds as well. For Gil Replacement, Mercury HP500 and Cyclone Manifold applications.

Original quality Hardin gaskets are the finest anywhere Their graphite impregnated core assures long life. Depending on application up to 2 or 4 may be required on a single engine. When using a turbolator (See related parts) 4 are required.


Manifold to Riser Gasket 5'' O.D
Your Price:
$4.99

Manifold to Riser Gasket 5" O.D

500-718

  • For Log Manifolds 
  • 5" Outside Diameter 
  • 3" Inside Diameter 
  • 2-15/16" Bolt Hole to Bolt Hole (Adjacent)
  • 4-1/8" Bolt Hole to Bolt Hole (Across)
  • Sold Each

GLM High Quality Elbow Gasket 27-860233
Your Price:
$4.99

Mercury 3 and 4" Riser Gasket - Restricted Flow 27-860233

700-30240

Mercury 3" and 4" Restricted Flow Riser/Elbow Gasket replaces MerCruiser part # 27-860233

Exhaust Elbow Gaskets have side leakage-proof treatment and sticking proof treatment.

  • Temperature Limit: 1112 F
  • Thickness: 1/16 Inch
  • Density of Sheet:1.309 / cm3
  • Compressibility: 15-35%
  • Recovery: 20% Min.
  • Bolt Holes measure 3-7/16" center to center lengthwise and 3-1/16 center to center width wise. 
  • Restricted water flow.

GLM High Quality Elbow Gasket 27-860233
Your Price:
$5.99

Mercury 3 and 4" Riser Gasket 27-863726

700-32080

Mercury 3" and 4" Open Riser/Elbow Gasket replaces MerCruiser part # 27-863726

Exhaust Riser/Elbow Gaskets have side leakage-proof treatment and sticking proof treatment.

  • Fits 1983-2002 V6 and V8, 3" or 4" riser.
  • Temperature Limit: 1112 F
  • Thickness: 1/16 Inch
  • Density of Sheet:1.309 / cm3
  • Compressibility: 15-35%
  • Recovery: 20% Min.
  • Bolt Holes measure 3-7/16" center to center lengthwise and 3-1/16 center to center width wise. 
  • Open gasket for standard cooling riser.

GLM High Quality Elbow Gasket 27-860231
Your Price:
$8.99

Mercury 3" and 4" Blocked Flow Riser/Elbow Gasket 27-860231

700-30220

Mercury 3" and 4" Blocked Flow Riser/Elbow Gasket replaces MerCruiser part # 27-860231

Exhaust Elbow Gaskets have side leakage-proof treatment and sticking proof treatment.

  • Temperature Limit: 1112 F
  • Thickness: 1/16 Inch
  • Density of Sheet:1.309 / cm3
  • Compressibility: 15-35%
  • Recovery: 20% Min.
  • Bolt Holes measure 3-7/16" center to center lengthwise and 3-1/16 center to center width wise. 
  • Blocks water flow for Closed Cooling applications

Outdrive Gasket OMC 508105
Your Price:
$3.99

Normally Ships in 7-10 Days. Rush proccessing is available on Mallory items: See here.

Outdrive Gasket OMC 508105

676-18-2613

Outdrive Gasket Set
Replaces: OMC 508105, Johnson / Evinrude 802172A1
For: Cobra drives
Our outdrive mounting gaskets are more tear resistant than the OEM and other aftermarket competitors and feature our exclusive “anti-stick” coating for easy removal the next time they need replaced.


Outdrive Gasket OMC 915840
Your Price:
$4.99

Normally Ships in 7-10 Days. Rush proccessing is available on Mallory items: See here.

Outdrive Gasket OMC 915840

676-18-2918

Outdrive Gasket
Replaces: OMC 915840
Cobra units
Our outdrive mounting gaskets are more tear resistant than the OEM and other aftermarket competitors and feature our exclusive “anti-stick” coating for easy removal the next time they need replaced.


Replacement Powerflow Manifold to Riser Gasket Early Style Round Hole
Your Price:
$10.99

Replacement Powerflow Manifold to Riser Gasket Early Style Round Hole

421-RGK

Replacement Powerflow Manifold to Riser Gasket Early Style Round Hole

These are all the popular IMCO riser gaskets Don't be caught without spares This is a common wear item.


Replacement Powerflow Manifold to Riser Gasket Early Style Round Hole
Your Price:
$10.99

Replacement Powerflow Plus Tailpipe Gaskets (Sold as Each)

421-11-1006

Replacement Powerflow Plus Tailpipe Gaskets (Sold as Each)

These are all the popular IMCO riser gaskets Don't be caught without spares This is a common wear item.


Seaward Series Replacement Riser Gasket
Your Price:
$11.99

Seaward Series Replacement Riser Gasket

620-38006

Replacement riser gasket for Hardin Seaward manifolds and risers. 4-1/2" x 3" Bolt pattern.