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Manifolds, Risers, Gaskets...
3.7L Exhaust System for Mercruiser Inboards
| Code / Price | Name / Description |
| GLM31710 $7.95 Quantity in Basket: none |
Manifold Gasket, Mercruiser 3.7L
Exhaust Manifold Gasket for a 3.7L (224 C.I.D.) Mercruiser. This item replaces Merc. # 27-68715. |
| GLM51130 $99.95 Sorry, GLM51130 is temporarily backordered. Please check back later. Quantity in Basket: none |
Exhaust Elbow 2-piece 3" 90°, Mercruiser Inline 4 & 6 Cylinder
Exhaust Elbow Assembly 3" 90 Degree Angle For a Mercruiser: MCM/MIE 470 244 CID 4 Cylinder. (1976-82); 120/140 GM 153/181 CID 4 Cylinder. (1982-95); 165/200 GM 250/292 CID Inline 6 Cylinder. (1969-81). This item replaces Merc. OEM: 76325A2. GLM Cast Iron Manifolds and Risers come with a 3-year warranty (PDF)! 
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| GLM51180 $189.95 Sorry, GLM51180 is temporarily backordered. Please check back later. Quantity in Basket: none |
Exhaust Elbow with Reservoir for Aluminum Manifold, Mercruiser 3.7L
Riser for a Mercruiser. It is used on a 3.7L 4-cylinder with an Aluminum Manifold. It comes with the Mercruiser 22-13234A1 Pressure Cap Fitting Kit and uses OSC8561-G riser gasket. GLM Aluminum Manifolds and Risers come with a 3-year warranty (PDF)! |
| GLM53110 $7.29 Quantity in Basket: none |
Riser Mounting Kit, Mercruiser, GLM51130 Riser
Mounting Kit for GLM51130 Riser on Mercruiser |
| MAL9-61407 $4.00 Quantity in Basket: none |
Riser Gasket, Mercruiser
Gasket, Exhaust Elbow Replaces: Mercruiser 27-99777 2 For: 120 1983-newer, 140/3.0L, 470,165 (6cyl), GM V-8 1982-older, Ford V-8 (6351-G Style) |
| MER816219A5 $899.00 Quantity in Basket: none |
Manifold, Exhaust, Aluminum, Mercruiser 3.7L
Aluminum Manifold for a Mercruiser 3.7L (224 c.i.d.). It uses riser OSC8561. If you are replacing a cast iron manifold of the same style with this aluminum one, you must also replace the riser. |
| OSC0879 $189.00 Quantity in Basket: none |
Exhaust Elbow with Reservoir for Cast Iron Manifold, Mercruiser 3.7L
Riser for a Mercruiser. It is used on a 3.7L 4-cylinder with a Cast Iron Manifold. It comes with the pressure cap and uses OSC0879-G riser gasket Osco Manifolds and Risers come with a 3-year warranty (PDF)!
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| OSC0879-G $7.00 Quantity in Basket: none |
Riser Gasket -Mercruiser (GLM32460)
Exhaust Riser Gasket for a 3.7L Mercruiser. It fits OSC0879 riser 3.7L with cast iron manifold (same as GLM32460)
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| OSC6325 $128.00 Quantity in Basket: none |
Exhaust Riser, Mercruiser Inline 4-6 Cyl. with Cast Iron Manifold
Riser for a Mercruiser application. It has a 3.0" exhaust outlet and a 90° down angle. It fits inline 4 cylinder 181 cid 3.0L and inline 6 cylinder, and uses mounting kit OSC6325-MK. This item replaces Merc. oem # 76325. Osco Manifolds and Risers come with a 3-year warranty (PDF)!
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| OSC6351-G $4.00 Quantity in Basket: none |
Riser Gasket, Mercruiser
Riser Gasket for a Mercruiser application. It is used with riser OSC6351 and riser OSC6771. (same as GLM31520)
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| OSC8561 $189.00 Quantity in Basket: none |
Exhaust Elbow with Reservoir for Mercruiser 3.7L with Aluminum Manifold
Elbow/Reservoir used on a Mercruiser application. It is used on a 3.7L with an aluminum manifold. This riser comes with the reservoir cap, and uses OSC8561-G riser gasket, or mounting kit OSC8561-MKL. This item replaces Merc. oem # 98561. Osco Manifolds and Risers come with a 3-year warranty (PDF)!
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| OSC8561-G $10.95 Quantity in Basket: none |
Riser Gasket Mercruiser 3.7L (GLM32470)
Riser / Elbow gasket for a 3.7L with an aluminum manifold. It is used with Riser OSC8561 with aluminum manifold. (same as GLM32470)
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