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Boating > Engine Parts > Manifolds >

Boating>Engine Parts>Manifolds>

Boat engine parts. Alternators, manifolds, water pumps and more for your boat engine repair. Gander Mountain has the largest selection of boat engine parts available online. Our boat engine parts inventory also includes boat starters, outboard accessories and boat engine tune up kits. So, if it's a water pump, new starter or spark plugs for your boat engine, check out our selection first!

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Sierra Exhaust Manifold Gasket Set For Mercruiser Engine, Sierra Part #18-4349

Sierra Exhaust Manifold Gasket Set For Mercruiser Engine, Sierra ...

Key Features
  • Sierra Part #18-4349

  • Exhaust manifold gasket set

  • For Mercruiser engine

$17.99
$16.99
Sierra Exhaust Manifold Gasket For OMC Engine, Sierra Part #18-1228

Sierra Exhaust Manifold Gasket For OMC Engine, Sierra Part #18-...

Key Features
  • Sierra Part #18-1228

  • Exhaust manifold gasket

  • For OMC engine

$3.59
$2.96
Sierra Manifold End Cap Gasket, Sierra Part #18-2850-9

Sierra Manifold End Cap Gasket, Sierra Part #18-2850-9

Key Features
  • Sierra Part #18-2850-9

  • Manifold end cap gasket

$6.99
$5.99
Mercruiser V6 Manifold With Center Riser

Mercruiser V6 Manifold With Center Riser

Key Features
  • 4.3 Liter

  • Center Riser

  • Fits either side of the engine

  • Mercruiser Part # 99746A8

  • Sierra Part # 18-1952

$219.99
$209.96
Mercruiser Riser Gasket

Mercruiser Riser Gasket

Key Features
  • For Mercruiser V6 V8 Manifolds w/Center Risers

  • Mercruiser Part # 27-41813

  • Sierra Part #18-0897

$4.74
OMC V8 Riser Gasket

OMC V8 Riser Gasket

Key Features
  • Replacement manifolds with end riser

  • For use with 800 series, 5.0L and 5.7L engines

$3.99
Mercruiser Manifold for V8 Ford 302/351 w/End Riser, port side

Mercruiser Manifold for V8 Ford 302/351 w/End Riser, port side

Key Features
  • Mercruiser part # 65604A4

  • Sierra part # 18-1958

$399.99
Replacement OMC V8 Port Manifold

Replacement OMC V8 Port Manifold

Key Features
  • End riser for 800 series, 5.0L and 5.7L engines

  • OMC part # 912442

$159.99
Mercruiser Manifold for V8 Ford 302/351 w/End Riser, starboard side

Mercruiser Manifold for V8 Ford 302/351 w/End Riser, starboard ...

Key Features
  • Mercruiser part # 65603A4.

  • Sierra part # 18-1962-1.

$334.99
Replacement Mercruiser V8 Manifold, Sierra 18-1953-2

Replacement Mercruiser V8 Manifold, Sierra 18-1953-2

Key Features
  • For replacement of Mercruiser V8 Manifold

  • For manifolds with center riser

  • Fits either port or starboard side

  • Manifold gasket and elbow gasket included

  • Sierra Part No. 18-1953-2

$144.99
OMC 4-Cylinder Manifold Elbow Gasket

OMC 4-Cylinder Manifold Elbow Gasket

Key Features
  • Port and starboard

  • Fits most 140 hp 3.0L 181 CID

  • Direct replacement for OMC 984054

$5.54
Mercruiser 4-Cylinder Manifold Gasket

Mercruiser 4-Cylinder Manifold Gasket

Key Features
  • Fits most late model 2.5L 153 CID and 3.9L 181 CID

  • 5-bolt pattern with electric choke

  • Replacement for Mercruiser 99798A18 and 806867A8

$9.99
Replacement Riser Elbow for Mercruiser V8 and 4-Cyl. Manifolds

Replacement Riser Elbow for Mercruiser V8 and 4-Cyl. Manifolds

Key Features
  • For V8 Manifold w/End Risers

  • For V8 Manifold Ford 302/351 w/End Risers

  • For Mercruiser 4-Cylinder Manifolds

$99.99
Mercruiser 2.5 Liter Upper Exhaust Hose

Mercruiser 2.5 Liter Upper Exhaust Hose

Key Features
  • For V8 Manifold w/End Riser

  • For 4-Cylinder Manifold

  • Sierra Part #18-2762

  • Mercruiser Part # 70981A3

$29.99
Sierra Manifold For Barr Engine, Sierra Part #18-1997-1

Sierra Manifold For Barr Engine, Sierra Part #18-1997-1

Key Features
  • Sierra Part #18-1997-1

  • Manifold for Barr engine

$174.99
Sierra Manifold, Sierra Part #5506-2

Sierra Manifold, Sierra Part #5506-2

Key Features
  • Sierra Part #5506-2

  • Manifold

$244.99
Sierra Manifold End Plate For Chrysler Inboard Engine, Sierra Part #18-1911

Sierra Manifold End Plate For Chrysler Inboard Engine, Sierra ...

Key Features
  • Sierra Part #18-1911

  • Manifold end plate

  • For Chrysler inboard engine

$42.99
OMC 4-Cylinder Manifold End Plate Gasket(OEM# 907761)

OMC 4-Cylinder Manifold End Plate Gasket(OEM# 907761)

Key Features
  • Fits port and starboard

  • Fits most 140 hp 3.0L 181 CID

  • Direct replacement for OMC 984054

$4.99
Thermostat Kit With Gasket for Mercruiser, 18-3651

Thermostat Kit With Gasket for Mercruiser, 18-3651

Key Features
  • Mercruiser V8 Manifold

  • Mercruiser V8 Manifold Ford 302/351 w/End Risers

  • Mercruiser V6 V8 Manifolds w/Center Risers

$14.99
Replacement Manifold, Mercruiser V8 Manifold With End Riser, port side

Replacement Manifold, Mercruiser V8 Manifold With End Riser, port...

Key Features
  • Mercruiser V8 Manifolds with end riser

  • Mercruiser part #77234A2

$319.99
Replacement Manifold, Mercruiser V8 Manifold With End Riser, starboard side

Replacement Manifold, Mercruiser V8 Manifold With End Riser, ...

Key Features
  • Mercruiser V8 Manifold with end riser

  • Mercruiser part #77235A2

$289.99
Replacement Block-Off Plate for Mercruiser V8 Manifolds

Replacement Block-Off Plate for Mercruiser V8 Manifolds

Key Features
  • For Mercruiser V8 Manifold w/End Risers

  • For MerCruiser V-8 Ford 302/351 with End Risers

  • Mercruiser Part # 60207

  • Sierra part # 18-4008

$8.49
Riser Elbow 15, 3" hose; Mercruiser V6 V8 Manifolds With Center Risers

Riser Elbow 15°, 3" hose; Mercruiser V6 & V8 ...

Key Features
  • Mercruiser Part # 9504A3

  • For replacement of Mercruiser V6 and V8 Manifolds

$129.99
Replacement Manifold Gasket For Mercruiser. Replaces Mercruiser #27-33395.

Replacement Manifold Gasket For Mercruiser. Replaces Mercruiser #...

Key Features
  • For Use On Mercruiser and OMC Manifolds

  • Compatible with 140 hp engine

  • Compatible with 800 series, 5.0L and 5.7L engines

$11.99
OMC V8 Thermostat w/Gasket

OMC V8 Thermostat w/Gasket

Key Features
  • Direct replacement manifolds with end riser

  • For use with all models listed

$15.99
Mercruiser Gasket for V6 Manifold w/ Center Riser, each

Mercruiser Gasket for V6 Manifold w/ Center Riser, each

Key Features
  • For Mercruiser V6 Manifold w/Center Riser

  • Mercruiser Part # 27-99757

  • Sierra Part #18-2909

$6.64
Mericruiser Gasket Set for V8 Manifold Ford 302/351 with End Riser

Mericruiser Gasket Set for V8 Manifold Ford 302/351 with End ...

Key Features
  • Mercruiser part # 27-54566A1

  • Sierra part # 18-4399

$24.99
Sierra Manifold For Pleasurecraft Engine, Sierra Part #18-1996

Sierra Manifold For Pleasurecraft Engine, Sierra Part #18-1996

Key Features
  • Sierra Part #18-1996

  • Manifold

  • For Pleasurecraft engine

$259.99
Sierra Exhaust Manifold Gasket For Mercury Marine/OMC, Sierra Part #18-0956

Sierra Exhaust Manifold Gasket For Mercury Marine/OMC, Sierra ...

Key Features
  • Sierra Part #18-0956

  • Exhaust manifold gasket

  • For Mercury Marine/Chrysler Inboard/OMC engine

$10.89
Sierra Manifold For Mercury Marine Engine, Sierra Part #18-1954-1

Sierra Manifold For Mercury Marine Engine, Sierra Part #18-1954-1...

Key Features
  • Sierra Part #18-1954-1

  • Manifold

  • For Mercury Marine engine

$429.99
Sierra Intake Manifold For GM Engine, Sierra Part #18-7627

Sierra Intake Manifold For GM Engine, Sierra Part #18-7627

Key Features
  • Sierra Part #18-7627

  • Intake manifold

  • For GM engine

$489.99
Sierra Intake Manifold For GM Engine, Sierra Part #18-7628

Sierra Intake Manifold For GM Engine, Sierra Part #18-7628

Key Features
  • Sierra Part #18-7628

  • Intake manifold

  • For GM engine

$514.99

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