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Your Price:
$275.99 Manifold
676-18-1957-2
Key Features:
- Will fit either Port or Starboard
- Ideally suited for freshwater applications
Use With:
- 18-0418: Exhaust Manifold Mounting Gasket
- 18-8532: Exhaust Manifold Mounting Kit
- 18-0672: Exhaust Elbow Gasket
- 18-0897: Exhaust Elbow Gasket
- 18-1908: Manifold Riser Spacer
- 18-1970-2: Riser Elbow
- 18-1974-1: Elbow
- 18-1976-2: Manifold Elbow
- 18-1985: Manifold Spacer
- 18-2849-1: Exhaust Elbow Gasket
- 18-8554: Exhaust Elbow Mounting Kit
- 18-8555: Exhaust Elbow Mounting Kit
Interchanges/Replaces
Barr
- MC-1-89011
GLM
- 51240
HGE
- 9011
Mallory
- 9-40506
Marine Power
- 0991-1000
Mercruiser Stern Drive
- 807078Q07
- 807078T08
Osco
- 9011
List of Containing Parts
| Sierra Item # | OE/Competitor # | Quantity | Description | Image | Comments |
|---|---|---|---|---|---|
| 18-0897 | Barr
| 1 | Exhaust Elbow Gasket |  | N/A |
| 18-0418 | Barr
| 1 | Exhaust Manifold Mounting Gasket |  | N/A |
| 18-4224 | GLM
| 1 | Drain Elbow Assembly |  | N/A |
Your Price:
$147.99 Manifold Riser Spacer
676-18-1908
Additional Details:
- Size: 3"
- For: Mercruiser GM V6 229 & 262cu.in (Models 185 & 205)
- For: Mercruiser GM Small block V8 305-350cu.in. (Models 200, 228, 230, 260 & 898)
- For: Mercruiser GM Big Block V8 454cu,in (Models 330, 340 & 7.4L)
Use With:
- 18-1952-1: Manifold
- 18-1953-2: Manifold
- 18-8554: Exhaust Elbow Mounting Kit
- 18-8555: Exhaust Elbow Mounting Kit
- 18-8556: Exhaust Elbow Mounting Kit
- 18-0672: Exhaust Elbow Gasket
- 18-0897: Exhaust Elbow Gasket
- 18-2849-1: Exhaust Elbow Gasket
- 18-1957-2: Manifold
- 18-1970-2: Riser Elbow
- 18-1976-2: Manifold Elbow
Interchanges/Replaces
Barr
- MC-20-93320A3
Mallory
- 9-40530
Mercruiser Stern Drive
- 93320
Osco
- 3320
Your Price:
$343.99 Elbow
676-18-1974-1
Key Features:
- Comes with 18-0897 gasket and brass plugs
Additional Details:
- Fits: V-6 & V-8 applications 0° (3" O.D. Riser)
Use With:
- 18-0672: Exhaust Elbow Gasket
- 18-0897: Exhaust Elbow Gasket
- 18-2849-1: Exhaust Elbow Gasket
- 18-8529: Exhaust Elbow Mounting Kit
- 18-1953-2: Manifold
- 18-8554: Exhaust Elbow Mounting Kit
- 18-1957-2: Manifold
Interchanges/Replaces
Barr
- MC-20-98502
GLM
- 51192
Mallory
- 9-40554
Mercruiser Stern Drive
- 98502A2
Osco
- 8502
List of Containing Parts
| Sierra Item # | OE/Competitor # | Quantity | Description | Image | Comments |
|---|---|---|---|---|---|
| 18-0897 | Barr
| 1 | Exhaust Elbow Gasket | | N/A |
Your Price:
$23.99 Exhaust Manifold Mounting Kit
676-18-8532
Additional Details:
- For: Mercruiser GM Big Block V-8 454 cu. in. (models 330, 340 & 7.4L)
Use With:
- 18-1957-2: Manifold
Interchanges/Replaces
GLM
- 33765
Mallory
- 9-40575
Osco
- 9011-MK
List of Containing Parts
| Sierra Item # | OE/Competitor # | Quantity | Description | Image | Comments |
|---|---|---|---|---|---|
| 18-0418 | Barr
| 1 | Exhaust Manifold Mounting Gasket | | N/A |
| NSS | Mercruiser Stern Drive
| 10 | Lockwasher | No Image | N/A |
Your Price:
$44.99 Exhaust Elbow Mounting Kit
676-18-8554
Additional Details:
- For: 229 & 262 ci V-6, 305 & 350 SB V-8, 454 Big Block V-8
Use With:
- 18-1906: Manifold Spacer
- 18-1908: Manifold Riser Spacer
- 18-1908K: Manifold Riser Spacer Kit
- 18-1951-1: Manifold
- 18-1952-1: Manifold
- 18-1953-2: Manifold
- 18-1971: Elbow
- 18-1978: Elbow
- 18-2849-1: Exhaust Elbow Gasket
- 18-1970-2: Riser Elbow
- 18-1957-2: Manifold
Interchanges/Replaces
GLM
- 53330
Mallory
- 9-40582
Osco
- 3320-MK
- 6371-MK-SP
List of Containing Parts
| Sierra Item # | OE/Competitor # | Quantity | Description | Image | Comments |
|---|---|---|---|---|---|
| 18-0897 | Barr
| 1 | Exhaust Elbow Gasket | | N/A |
| 18-2849-1 | Barr
| 1 | Exhaust Elbow Gasket |  | N/A |
Your Price:
$58.99 Exhaust Elbow Mounting Kit
676-18-8555
Additional Details:
- For: 229 & 262 ci V-6, 305 & 350 SB V-8, 454 Big Block V-8
Use With:
- 18-1908: Manifold Riser Spacer
- 18-1908K: Manifold Riser Spacer Kit
- 18-1952-1: Manifold
- 18-1953-2: Manifold
- 18-1957-2: Manifold
- 18-1976-2: Manifold Elbow
Interchanges/Replaces
GLM
- 53430
Mallory
- 9-40583
Osco
- 3320-MK-X
List of Containing Parts
| Sierra Item # | OE/Competitor # | Quantity | Description | Image | Comments |
|---|---|---|---|---|---|
| 18-0897 | Barr
| 1 | Exhaust Elbow Gasket | | N/A |
| 18-2849-1 | Barr
| 1 | Exhaust Elbow Gasket | | N/A |
Your Price:
$16.99 Exhaust Manifold Mounting Gasket
676-18-0418
Additional Details:
- Fits: MCM/MIE GM V-8 (454, 482, 496, 502 & 540 cid) engines
- Fits: Volvo 7.4L, GL, GI, GSI, and 8.2L, GL, GI, GSI
Use With:
Interchanges/Replaces
Barr
- CHVA470000
- MC47-27-46820
Crusader
- 96653
GLM
- 33760
Mallory
- 9-61400
Mercruiser Stern Drive
- 27-46820
OMC Inboard
- 909613
OMC Stern Drive
- 3852472
- 909613
Osco
- CW-GH
Volvo Penta
- 3852472
Your Price:
$5.99 Exhaust Elbow Gasket
676-18-0897
Additional Details:
- For: Standard cooling, restrictor gasket
- Fits: 1981-1997 GM V-6 & V-8 Engines with center rise outlet exhaust manifold
Use With:
- 18-1908: Manifold Riser Spacer
- 18-1974-1: Elbow
- 18-8556: Exhaust Elbow Mounting Kit
- 18-1952-1: Manifold
- 18-1953-2: Manifold
- 18-1958-1: Manifold
- 18-1962-1: Manifold
- 18-1985: Manifold Spacer
- 18-1976-2: Manifold Elbow
- 18-1957-2: Manifold
- 18-1970-2: Riser Elbow
Interchanges/Replaces
Barr
- MC 20 99208
- MC47-27-41813
GLM
- 30240
Mallory
- 9-61413
Mercruiser Stern Drive
- 27-41813
- 27-860233
- 27-863724
Osco
- 8503-GR
Your Price:
$9.99 Exhaust Elbow Gasket
676-18-0672
Additional Details:
- For: Closed cooling
- Fits: GM V-6 & V-8 with center rise outlet exhaust manifold
Use With:
- 18-1908: Manifold Riser Spacer
- 18-1974-1: Elbow
- 18-1952-1: Manifold
- 18-1953-2: Manifold
- 18-1976-2: Manifold Elbow
- 18-1957-2: Manifold
- 18-1970-2: Riser Elbow
Interchanges/Replaces
Barr
- MC 20 87918
- MC-47-27-41811
GLM
- 30220
Mallory
- 9-61422
Mercruiser Stern Drive
- 27-41811
- 27-860231
- 27-863725
- 27-8637251
Osco
- 8503-GB
Your Price:
$21.99 Exhaust Elbow Gasket (Priced Per Pkg of 2)
676-18-0672-9
Additional Details:
- For: Closed cooling
- Fits: GM V-6 & V-8 with center rise outlet exhaust manifold
Use With:
- 18-1970-2: Riser Elbow
- 18-1976-2: Manifold Elbow
- 18-1908: Manifold Riser Spacer
- 18-1974-1: Elbow
- 18-1952-1: Manifold
- 18-1953-2: Manifold
- 18-1957-2: Manifold
Interchanges/Replaces
Barr
- MC 20 87918
GLM
- 30220
Mercruiser Stern Drive
- 27-41811
- 27-860231
- 27-863725
- 27-8637251
Osco
- 8503-GB
Your Price:
$19.99 Exhaust Elbow Gasket (Priced Per Pkg Of 2)
676-18-2849-9-1
Additional Details:
- For: Standard cooling, full flow 4 slot gasket
- Fits: 1998-2001 Gm V-6 & V-8 with center rise outlet exhaust manifold
Use With:
- 18-1908: Manifold Riser Spacer
- 18-1952-1: Manifold
- 18-1953-2: Manifold
- 18-1958-1: Manifold
- 18-1962-1: Manifold
- 18-1974-1: Elbow
- 18-1976-2: Manifold Elbow
- 18-1985: Manifold Spacer
- 18-8554: Exhaust Elbow Mounting Kit
- 18-1957-2: Manifold
- 18-1970-2: Riser Elbow
Interchanges/Replaces
Barr
- MC 47 27 87105
GLM
- 32080
Mallory
- 9-61414
Mercruiser Stern Drive
- 27-818832
- 27-860232
- 27-863726
- 27-87105
- 27-871051
Osco
- 8503-GO
Your Price:
$402.99 Manifold Riser Spacer Kit
676-18-1908K
Key Features:
- Packaged as a set, complete with mounting hardware
- 3" Riser Kit
Additional Details:
- Fits: MCM V-6 carb & TBI eng. w/ 2 piece exhaust manifolds (s/n 0M614999 & below)
Use With:
- 18-1952-1: Manifold
- 18-8554: Exhaust Elbow Mounting Kit
- 18-8555: Exhaust Elbow Mounting Kit
- 18-1953-2: Manifold
- 18-1957-2: Manifold
Interchanges/Replaces
GLM
- 50310
Mercruiser Stern Drive
- 807476A6
- 93320A13
- 93320A2
- 93320A3
- 93320A5
- 93320A6
List of Containing Parts
| Sierra Item # | OE/Competitor # | Quantity | Description | Image | Comments |
|---|---|---|---|---|---|
| 18-1908 | Barr
| 2 | Manifold Riser Spacer |  | N/A |
| 18-4258 | Crusader
| 2 | Pipe Plug |  | N/A |
| 18-4263 | Chrysler/Force/US Marine
| 2 | Pipe Plug |  | N/A |
| 18-2849-1 | Barr
| 2 | Exhaust Elbow Gasket | | N/A |
| 18-0897 | Barr
| 2 | Exhaust Elbow Gasket | | N/A |
| 18-0672 | Barr
| 2 | Exhaust Elbow Gasket |  | N/A |
| NSS | Mercruiser Stern Drive
| 8 | Lockwasher | No Image | N/A |