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Home > Sterndrive Parts (Inboard Outboard) > Mercruiser Sterndrives > Exhaust System for Mercruiser > Risers, Elbows & acces. for Mercruiser


Risers, Elbows & acces. for Mercruiser



Spacer, 3" Exhaust
Part Number: BAR20-0097
Weight: 7.4
Price: $79.95
Quantity in Basket: none
This is a 3 inch high spacer that is used on "Barr Style" center riser manifolds. It goes between the riser and the manifold, and is capable of being stacked if more than 3 inches is needed.
 
 



Spacer, Exhaust, 2" Barr
Part Number: BAR20-0099
Weight: 5.14
Price: $48.95
Quantity in Basket: none
2" High Spacer for all Barr Style Manifolds
Fits:
GLM56110
GLM56140
GLM56230
GLM56240
GLM56250
OSC2018
OSC992
OSC99204
OSC994
OSCCW994
OSCFL994
 
 



Block Kit, Riser, 6" Spacer, Mercruiser V6 & V8
Part Number: BARMC-20-93322A3
Weight: 23.02
Price: $140.95
Quantity in Basket: none
Direct replacement 6" riser blocks (pair) with fastener and gasket, package
6" Spacer Block Kit fits Mercruisers with Center rise manifolds (OSC9011 and OSC7114B)
Ordinarily for 83 and up (some exceptions apply)
 
 



Riser, Exhaust, Mercruiser V8 Log Style
Part Number: BARMC20-72963
Weight: 29
Price: $175.00
Quantity in Basket: none
This riser was used on some mercruiser inboard applications with the log style manifolds. It fit models 225, 250, 255, 270, and 280, all with Chevrolet small block and big block engines. It fits and BARMC1-47737 manifolds, uses GLM31480 gaskets
 
 



Riser, Exhaust, Mercruiser V8 Log Style
Part Number: BARMC20-76668
Weight: 30
Price: $189.95
Quantity in Basket: none
Exhaust Riser for Mercruiser Sterndrive V8 Models 225, 250, 255, 270 and 280 with Log Style exhaust manifolds, fits and BARMC1-47737 manifolds, uses GLM31480 gaskets
 
 



Riser Kit, Riser Extension Kit, Mercruiser, 3 Inch
Part Number: GLM50310
Weight: 18
Price: $139.00
Quantity in Basket: none
Riser Kit for Mercruiser with 3" exhaust
Cast Iron with gaskets and mounting hardware (as pictured)
OEM: 93320A5
 
 



Exhaust Spacer Kit 6", Mercruiser Center Rise
Part Number: GLM50610
Weight: 27.02
Price: $199.00
Quantity in Basket: none
This is a 6" Spacer Kit used with Mercruiser Center riser Manifolds (GLM51240 and GLM51230) from 1983-present on V-6 & V-8 applications. The kit comes complete with all hardware and gaskets.
 
 



Elbow Tube, Mercruiser V6, V8, 4" Exhaust
Part Number: GLM50750
Weight: 2.44
Price: $139.95
Quantity in Basket: none
This is a 4" Exhaust Tube made of Aluminum,
Goes between upper and lower exhaust bellows on 4 inch Mercruiser V6/V8 exhaust systems.
Fits Mercruiser Model 175-205 V6, GM 229/262 CID (1983-2005)
Mercruiser Model 200-320, V8 Small Block GM 305/350/377 CID (1983 and newer)
Mercruiser Models 330-370 V8 Big Block GM 454/502 CID (1981 and newer)
Replaces OEM: 14478T01
GLM Cast Iron Manifolds and Risers come with a 3-year warranty (PDF)!
 
 



Exhaust Riser 3", Mercruiser Style V6, V8
Part Number: GLM51110
Weight: 19
Price: $80.00
Quantity in Basket: none
This is an Exhaust Riser (Elbow) used on Mercruiser V-6 & V-8 with 3" center riser manifolds from 1983-1986. It has a 3.0" outlet and a 15° down angle. This item replaces Merc. #98504A3.
GLM Cast Iron Manifolds and Risers come with a 3-year warranty (PDF)!
 
 



Exhaust Elbow 3" 90°, Mercruiser Inline 4 & 6 Cylinder
Part Number: GLM51120
Weight: 20.5
Price: $89.00
Quantity in Basket: none
This is an Exhaust Elbow Assembly 3" 90 Degree Angle For Mercruiser 140 GM 181 CID 4 Cylinder. (1968-82); MCM/MIE 470 244 CID 4 Cylinder. (1976-82); 165/200 GM 250/292 CID Inline 6 Cylinder. (1969-81); 215-888 Ford 302/351 CID V8 (1977 & before); 198-898 GM 305/350 CID V8 (S.B) (1977-82). This item replaces MERC. OEM: 76351A2.
GLM Cast Iron Manifolds and Risers come with a 3-year warranty (PDF)!
 
 



Exhaust Elbow 2-piece 3" 90°, Mercruiser Inline 4 & 6 Cylinder
Part Number: GLM51130
Weight: 18.5
Price: $99.00
Quantity in Basket: none
This is an 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)!
 
 



Exhaust Riser 4", Mercruiser Style V6, V8
Part Number: GLM51140
Weight: 25
Price: $99.00
Quantity in Basket: none
This is a cast iron Exhaust Riser For Mercruisers. It comes with the Riser and the mounting bolts. It is used on all Mercruiser Center riser applications (V6 & V8) with a 4" riser. Generally any from 1986 & up. Note: 1986 was a Transition Year, and some applications had 3" risers.
GLM Cast Iron Manifolds and Risers come with a 3-year warranty (PDF)!
 
 



Exhaust Riser, Mercruiser 2 Bolt GM 4 Cylinder
Part Number: GLM51160
Weight: 20
Price: $109.00
Quantity in Basket: none
This is an Exhaust Riser, 2-Bolt. It Fits 1982-1985 Mercruiser Model 120/140 GM 153/181 4 Cyl. 1990 and newer Mercruiser Model 3.0LX/3.0L GM 181 4 Cyl.
GLM Cast Iron Manifolds and Risers come with a 3-year warranty (PDF)!
 
 



Exhaust Elbow with Reservoir for Aluminum Manifold, Mercruiser 3.7L
Part Number: GLM51180
Weight: 33.74
Price: $159.00
Quantity in Basket: none
This is a 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)!
 
 



Exhaust Riser, Small Block 3", Barr, 992
Part Number: GLM56110
Weight: 23.28
Price: $75.00
Quantity in Basket: none
Exhaust Elbow (Riser) 3" 10° Fits Barr/Indmar Ford Small Block V8 5.0/5.8L 302/351 CID; Barr/Indmar/Marine Power GM Small Block V8 5.0/5.7L 305/350 CID; Barr/Indmar/Marine Power GM Big Block V8 7.4/8.2L 454/502 CID
OEMs: 20-0082 (Barr); 0992-000 (Marine Power)
GLM Cast Iron Manifolds and Risers come with a 3-year warranty (PDF)!
 
 



Exhaust Riser, Barr 4" (99204 Style)
Part Number: GLM56140
Weight: 22.04
Price: $85.00
Quantity in Basket: none
This is an Exhaust Elbow 4" 10° Fits Barr/Indmar Ford Small Block V8 5.0/5.8L 302/351 CID; Barr/Indmar/Marine Power GM Small Block V8 5.0/5.7L 305/350 CID; Barr/Indmar/Marine Power GM Big Block V8 7.4/8.2L 454/502 CID
OEMs: 20-0100 (Barr); 0992-593 (Indmar)
GLM Cast Iron Manifolds and Risers come with a 3-year warranty (PDF)!
 
 



Elbow, Exhaust Port, Mercruiser
Part Number: MER11086T
Weight: 3.4
Price: $139.00
Quantity in Basket: none
This is an Exhaust Pipe, Port Riser to Y that will fit most Mercruiser Small block GM V8 engines from 1983 to 2001. This is a genuine Mercruiser Part.
 
 



Exhaust Elbow Extension, 4"-Starboard, Mercruiser V6, V8
Part Number: MER14343T
Weight: 2.38
Price: $139.00
Quantity in Basket: none
Starboard Exhaust Elbow for V6 and V8 with 4" Exhaust
 
 



Elbow, Exhaust, Mercruiser V6
Part Number: MER14478T01
Weight: 2.62
Price: $179.00
Quantity in Basket: none
Exhaust Elbow for Mercruiser GM 4.3L V6 applications
 
 



Riser Blackext Install Kit, Mercruiser V8 with riser spacer
Part Number: MER14801A1
Weight: 9
Price: $299.00
Quantity in Basket: none
This is a Riser Blackext Install Kit for use in V8 with 3" or 6" Spacer Blocks - QuickSilver EOM Mercury/Mercruiser Part: 14801A 1
Sold in pairs only. Replaces: 14801A 1
 
 



Riser Blackext Install Kit, Mercruiser V6 with riser spacer
Part Number: MER14865A1
Weight: 8.1
Price: $299.00
Quantity in Basket: none
This is a Riser Blackext Install Kit for use in V6 with 3" or 6" Spacer Blocks - QuickSilver EOM Mercury/Mercruiser Part: 14865A 1
Sold in pairs only. Replaces: 710-14865A 1
 
 



O-Ring Exhaust Seal, Mercruiser Transom
Part Number: MER41802
Weight: 0.02
Price: $5.95
Quantity in Basket: none
This is a an O-Ring Exhaust Seal used on Mercruiser Sterndrives. It goes from the exhaust Y pipe to the Exhaust outlet at the transom. This is a Genuine Mercruiser part.
 
 



Exhaust Pipe, Lower , Mercruiser 3.0L 88-Up
Part Number: MER42422A1
Weight: 1.65
Price: $139.95
Quantity in Basket: none
Lower exhaust pipe for Mercruiser 3.0L Engines, (1988 -up)
Fits between Riser and lower exhaust pipe on Drive
4" diameter X 3" diameter
 
 



Riser, Exhaust, Mercruiser V8 Log Style
Part Number: MER72963A9
Weight: 29
Price: $199.00
Quantity in Basket: none
Exhaust Riser for Mercruiser inboard V8 Models 225, 250, 255, 270 and 280 with Log Style exhaust manifolds, fits and BARMC1-47737 manifolds, uses GLM31480 gaskets
 
 



Y-Pipe, Mercruiser
Part Number: MER807130A4
Weight: 14.6
Price: $459.00
Quantity in Basket: none
Exhaust Bullhorn Kit
Required kit for the MHP 500 Carburetor and 500 Bulldog engines. Used in conjunction with Exhaust Elbow Kit (MER849196A 1)
 
 



Intermediate Exhaust Pipe, Mercruiser 5.7L, 6.2L
Part Number: MER807153T
Weight: 1.52
Price: $169.95
Quantity in Basket: none
Elbow 4" to 3" Exhaust Pipe
Fits Mercruiser 5.7L, 6.2L engines
 
 



Exhaust Block-off Plate, Mercruiser
Part Number: MER861776A2
Weight: 0.75
Price: $34.95
Quantity in Basket: none
Plate-Block Off Fits Alpha/Bravo V6 and V8 GM Mercruiser
 
 



Exhaust Elbow with Reservoir for Cast Iron Manifold, Mercruiser 3.7L
Part Number: OSC0879
Weight: 31
Price: $189.00
Quantity in Basket: none
This is a 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)!
 
 



Exhaust Spacer, 3", Mercruiser Log
Part Number: OSC1851
Weight: 7
Price: $59.95
Quantity in Basket: none
This is a 3" Spacer used on Mercruisers with Log Style Manifolds. It goes between the Manifold & the Riser. It fits OSC7234B, OSC7235B, OSC5603 & OSC5604 manifolds, uses OSC6351-G gaskets
 
 



Exhaust Riser Mercruiser 2 Bolt 4 Cylinder. GM
Part Number: OSC2076
Weight: 22
Price: $129.00
Quantity in Basket: none
Riser for Mercruiser 4 cyl. MR & Alpha 1 with 2-bolt risers, uses OSC6351-G gaskets
Osco Manifolds and Risers come with a 3-year warranty (PDF)!
 
 



Exhaust Spacer, 3", Mercruiser C, R
Part Number: OSC3320
Weight: 8
Price: $59.95
Quantity in Basket: none
This is a 3" spacer used on Mercruiser applications. It goes between the manifold and the riser elbow. This item is used on all V6 and V8 Mercruisers with center riser manifolds from 1983 and up. It will fit OSC9745, OSC7114B & OSC9011 manifolds. It uses OSC8503-GR / OSC8503-GB / OSC8503-GO gaskets
 
 



Exhaust Spacer, 6", Mercruiser C, R
Part Number: OSC3322
Weight: 12
Price: $59.95
Quantity in Basket: none
This is a 6" spacer used on Mercruiser applications. It goes between the manifold and the riser elbow. This item is used on all V6 and V8 Mercruisers with center riser manifolds from 1983 and up. It will fit OSC9745, OSC7114B & OSC9011 manifolds. It uses OSC8503-GR / OSC8503-GB / OSC8503-GO gaskets. This item replaces Merc. #93322.
 
 



Exhaust Riser, 4" Mercruiser
Part Number: OSC4354
Weight: 25
Price: $119.00
Quantity in Basket: none
This is a 4" Riser for a Mercruiser. It will fit all V-6 & V 8 GM Engines with a Center Riser Exhaust from 1983 & Up. This riser fits OSC9745, OSC7114B & OSC9011 manifolds. It uses OSC8503-GR / OSC8503-GB / OSC8503-GO gaskets . This riser replaces Merc. #44354, 807914, & 807988.
Osco Manifolds and Risers come with a 3-year warranty (PDF)!
 
 



Manifold End Plate, Rear, Mercruiser
Part Number: OSC54870
Weight: 2
Price: $16.95
Quantity in Basket: none
This is an End Plate for an Exhaust Manifold on a Mercruiser. It is a Plain End Plate and does not have a Hose Bib. It is used on some GM inline 6 engines, plus small block Ford & GM V-8 engines. The gasket for it is OSC48043. It will fit the following manifolds: OSC7234B, OSC7235B, OSC5603, OSC5604 manifolds & many 4 cyl. Applications without water fittings.
 
 



Exhaust Riser, Mercruiser 120 Models prior to 83
Part Number: OSC5538
Weight: 24
Price: $99.00
Quantity in Basket: none
This is an Exhaust Riser for a Mercruiser. It will fit the early model 120 prior to 1983, and the 160 inline 6. It will fit the following manifolds: OSCME153-LS & OSCME153-LR manifolds. It uses OSC5538-G gaskets. This item replaces Merc. #39920, 55538.
Osco Manifolds and Risers come with a 3-year warranty (PDF)!
 
 



Manifold End Plate, Mercruiser
Part Number: OSC60252
Weight: 2.25
Price: $19.95
Quantity in Basket: none
This is an End Plate for Mercruiser V8 Log Style manifolds. This plate has a Hose Bib, and uses mounting kit OSC60252-MK. End Plate fits OSC7234B, OSC7235B, OSC5603, OSC5604 manifolds & many 4 cyl. Applications with water fittings. This item replaces Merc. oem #60252.
 
 



Exhaust Riser, Mercruiser 3.7L with Cast Iron Manifold
Part Number: OSC6325
Weight: 22
Price: $128.00
Quantity in Basket: none
This is a Riser for a Mercruiser application. It has a 3.0" exhaust outlet and a 90° down angle. It fits 4 cylinder 2.5L & 3.0L, and uses mounting kit OSC6325-MK. This item replaces Merc. oem #76325.
Osco Manifolds and Risers come with a 3-year warranty (PDF)!
 
 



Exhaust Riser, Mercruiser I-O Rear Riser
Part Number: OSC6351
Weight: 25
Price: $99.00
Quantity in Basket: none
Riser for Mercruiser I/O with rear riser, fits OSC7234B & OSC7235B manifolds, uses OSC6351-G gaskets
Osco Manifolds and Risers come with a 3-year warranty (PDF)!
 
 



Exhaust Riser, Mercruiser V8 Log Style
Part Number: OSC6771
Weight: 27
Price: $129.00
Quantity in Basket: none
This is a Exhaust Riser for Mercruisers. It was used on both Ford & GM V8 engines with log style manifolds prior to 1983. It was also used on some inline GM 6 cylinders. This Riser was used on straight inboards. The riser mounting kit is OSC6371-MK.
Osco Manifolds and Risers come with a 3-year warranty (PDF)!
 
 



Exhaust Riser, 0° 3" Mercruiser V8, V6
Part Number: OSC8502
Weight: 22
Price: $99.00
Quantity in Basket: none
This is a Riser for a Mercruiser. It has a 3.0" outlet with 0° degree down angle and is used on Center Riser applications for V6 & V8 engines. This riser is generally used with inboard applications. This Riser uses OSC8503-GR/ OSC8503-GB / OSC8503-GO Gaskets
Osco Manifolds and Risers come with a 3-year warranty (PDF)!
 
 



Exhaust Riser, Mercruiser 98504A3
Part Number: OSC8503A
Weight: 22
Price: $95.00
Quantity in Basket: none
This is a 3.0" Riser for a Center Riser Manifold on a Mercruiser Sterndrive. It has a 3.0" outlet and a 15° down angle. This was used from 1883 thru 1986 on V6 & V8 engines. It will fit OSC9745, OSC7114B, & OSC9745 manifolds. This Riser uses OSC8503-GR/ OSC8503-GB / OSC8503-GO Gaskets
Osco Manifolds and Risers come with a 3-year warranty (PDF)!
 
 



Exhaust Elbow with Reservoir for Mercruiser 3.7L with Aluminum Manifold
Part Number: OSC8561
Weight: 34
Price: $189.00
Quantity in Basket: none
This is an 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)!
 
 



Riser, Barr Style (Mercruiser, Volvo) GM 305 5.0L, 350 5.7L V8
Part Number: OSC992
Weight: 21
Price: $85.00
Quantity in Basket: none
This is a Barr Style Riser for Barr Style Manifolds. This riser has a 3.0" outlet at a 10° down angle. It will fit GM small block manifold OSC994, Ford Barr style manifold OSCFL994, and GM big block manifold #CW994. The mounting kit is OSC992MK for raw water cooling (no heat exchanger), and OSC992MK-FW for fresh water cooling (with heat exchanger).
Osco Manifolds and Risers come with a 3-year warranty (PDF)!
 
 



Riser, Barr Style 4" Mercruiser
Part Number: OSC99204
Weight: 23
Price: $99.00
Quantity in Basket: none
This is a Barr Style Riser for Barr Style Manifolds. This riser has a 4.0" outlet at a 10° down angle. It will fit GM small block manifold OSC994, , Ford Barr style manifold OSCFL994, and GM big block manifold OSCCW994. The mounting kit is OSC992MK for raw water cooling (no heat exchanger), and OSC992MK-FW for fresh water cooling (with heat exchanger).
Osco Manifolds and Risers come with a 3-year warranty (PDF)!
 
 



Spacer, 3" Exhaust
Part Number: OSC994-S3
Weight: 7.58
Price: $79.95
Quantity in Basket: none
3" Spacer Block (complete with 3/4" NPT pipe plug) capable of stacking
Fits the following manifolds: OSC994; OSCCW994; OSCFL994 Fits the following Risers: OSC992; OSC99204; OSC2018

Fits Mercruiser: V8 Models 188, 215, 225, 233, 255, 302, 351 and 888 All Years Center Riser Generic
V8 Models 325, 330, 340 and 350 Inboard and Stern-Drive Units Center Riser Generic
V8 Models 190, 198, 225, 250, 270, 228, 898, 260, 255 and 280 Inboard and Stern-Drive Units Center Riser Generic
Fits Crusader: V8 - 427 and 454 CID All Models Inboard Center Riser Generic
Fits Chris Craft V8 - 454 CID Center Riser Generic
Fits Indmar: V8 - 427 and 454 CID All Models Inboard Center Riser Direct Replacement
 
 



Riser, Exhaust, Mercruiser, 10° Down Angle
Part Number: OSCCRR-1
Weight: 20
Price: $95.00
Quantity in Basket: none
This is a 3.0" Riser for an Osco generic manifold. It has a 3.0" outlet with a 10° down angle. It will fit on Ford small block manifold OSCFLCR818, GM small block OSCCVCR818, and GM big block OSCCWCR818. The mounting kit is OSCCRR-MK for Raw water cooling (without heat exchanger), and OSCCRR-MK-FW with Fresh water cooling (with heat exchanger).
Osco Manifolds and Risers come with a 3-year warranty (PDF)!
 
 



Riser, Exhaust, Mercruiser, 30° Down Angle
Part Number: OSCCRR-3
Weight: 20
Price: $95.00
Quantity in Basket: none
Riser, 3" exhaust outlet, 30º down angle for Mercruiser. fits OSCCVCR818 & OSCFLCR818 manifolds (6-bolt with 3" outlet), uses OSCCRR-G gaskets
Osco Manifolds and Risers come with a 3-year warranty (PDF)!
 
 



Rear End Plate for Manifold, Mercruiser
Part Number: OSCMWF
Weight: 1.14
Price: $13.95
Quantity in Basket: none
Rear End Plate fits