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MANIFOLD Fits 454 cu.in. GM big block V8 engines Mercruiser #89011
Mercruiser Manifold Fits 454 cu.in. GM big block V8 engines Mercruiser #89011
Manifold. Fits 454 cu.in. GM big block V8 engines. Fits both sides of engine. Replaces Mercruiser # 89011. Use mounting kit 9011-MK.
 
Base SKU:OSC9011
In Stock:No
Price: $0.00 
 
Quantity:   

Osco RISER4" exhaust outlet, 7º down angle. For late model inboard/outboard and inboards.
Mercruiser Osco RISER 4", 7º down angle.
Riser, 4" exhaust outlet, 7º down angle. For late model inboard/outboard and inboards. Replaces Mercruiser # 44354, 807914 and 807988. Use mounting kit 4354-MK.
 
Base SKU:OSC4354
In Stock:Yes
Price: $135.51 
 
Quantity:   

Osco RISER MERCRUISER #98503
Osco RISER 3" MERCRUISER #98503
Riser, 3" exhaust outlet, 15º down angle. For early model inboard/outboards. Replaces Mercruiser #’s 98503 and 98504. Use mounting kit 8503A-MK.
 
Base SKU:OSC8503A
In Stock:Yes
Price: $135.48 
 
Quantity:   

Mercruiser 3" SPACER OEM #MC93320A3 sold each
Mercruiser 3" SPACER OEM #MC93320A3
Spacer, 3" center riser. Fits 9745, 7114B2 manifold. Replaces Mercruiser # 93320. Sold each. Use mounting kit 3320-MK with 8503A riser or use 3320-MK-X with 4354 riser.
 
Base SKU:OSC3320
In Stock:Yes
Price: $83.56 
 
Quantity:   

OSCO MERCRUISER 6" SPACER OEM #MC93322A3
OSCO MERCRUISER 6" SPACER OEM #MC93322A3
Spacer, 6" center riser. Fits 9745 manifold. Replaces Mercruiser # 93322. Sold each. Use mounting kit 3322-MK to mount spacer to manifold. Riser #’s 8503A or 4354 will require their own mounting kit.
 
Base SKU:OSC3322
In Stock:Yes
Price: $85.79 
 
Quantity:   

Mounting Kit, manifold. Fits 9011 manifold. Includes CW-GH gasket and mounting hardware.
Mounting Kit, manifold. Fits 9011 manifold. Includes CW-GH gasket and mounting hardware.
Mounting Kit, manifold. Fits Osco manifold. Includes CW-GH gasket and mounting hardware.
 
Base SKU:osc9011-mk
In Stock:No
Price: $0.00 
 
Quantity:   

Mounting Kit, riser. Fits 4354 Mercruiser riser
Mounting Kit, riser. Fits 4354 Mercruiser riser
Mounting Kit, riser. Fits 4354 riser. Includes 8503-GR gasket and mounting hardware.
 
Base SKU:OSC4354-MK
In Stock:No
Price: $0.00 
 
Quantity:   

Mounting Kit, riser. Fits 8503A riser. Includes 8503-GR gasket and mounting hardware.
Mounting Kit, riser. Fits 8503A riser.
Mounting Kit, riser. Fits 8503A riser. Includes 8503-GR gasket and mounting hardware.
 
Base SKU:OSC8503A-MK
In Stock:Yes
Price: $10.29 
 
Quantity:   

MOUNTING KIT FOR 3320 SPACER TO 4354 RISER
MOUNTING KIT FOR 3320 SPACER TO 4354 RISER
Mounting Kit, spacer. Fits 3320 spacer with 4354 riser. Includes 8503-GO and 8503-GR gaskets and mounting hardware to bolt 4354 riser and 3320 spacer to 9745 manifold.
 
Base SKU:OSC3320-MK-X
In Stock:Yes
Price: $32.55 
 
Quantity:   

MOUNTING KIT FOR 3320 SPACER
MOUNTING KIT FOR 3320 SPACER
Mounting Kit, spacer. Fits 3320 spacer with 8503A riser. Includes 8503-GO and 8503-GR gaskets and mounting hardware to bolt 8503A riser and 3320 spacer to 9745 manifold
 
Base SKU:OSC3320-MK
In Stock:Yes
Price: $26.83 
 
Quantity:   

Gasket, blocked. Fits center riser Mercruiser
Gasket, blocked. 27-41811
Gasket, blocked. Fits center riser Mercruiser. For fresh water/closed cooling, gasket separates anti-freeze and raw water (no stainless plate required). Replaces Mercruiser # 27-41811.
 
Base SKU:OSC8503-GB
In Stock:No
Price: $0.00 
 
Quantity:   

Gasket, open. Fits center riser Mercruiser.
Gasket, open. Fits center riser Mercruiser.
Gasket, open. Fits center riser Mercruiser. Common use is at base of spacer block along with 8503-GR at riser. Allows spacer to fill with water. Replaces Mercruiser # 27-87105.
 
Base SKU:OSC8503-GO
In Stock:Yes
Price: $5.28 
 
Quantity:   

Gasket, restrictor. Fits center riser Mercruiser Replaces Mercruiser # 27-41813.
Gasket, restrictor. Mercruiser # 27-41813.
Gasket, restrictor. Fits center riser Mercruiser. Common use is on all raw water cooled motors.Restricts flow, creating water back pressure to keep manifold and/or spacer full. Replaces Mercruiser # 27-41813.
 
Base SKU:OSC8503-GR
In Stock:Yes
Price: $5.28 
 
Quantity:   

FITTING 3/4"PIPE X1"THREAD 90D
FITTING 3/4"PIPE X1"THREAD 90D
Water Fitting, 90º elbow. 3/4" MPT x 1" hose barb. Replaces Mercruiser # 22-36305. Fits Chrysler , Mercruiser Manifolds and Risers
 
Base SKU:OSCF68C9
In Stock:No
Price: $0.00 
 
Quantity:   

WATER FITTING 3/4" STRAIGHT
WATER FITTING 3/4" STRAIGHT
Water Fitting, straight. 3/4" MPT x 1" hose barb. Replaces Mercruiser # 22-45084. Replaces Crusader # 97911 Fits Chrysler Mercruiser Crusader manifolds and risers
 
Base SKU:OSCF68CS
In Stock:No
Price: $0.00 
 
Quantity:   


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