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Your Price:
$372.99 Manifold
676-18-1958-1
Key Features:
- Supplied with mounting package
- Port Side
Additional Details:
- Fits: MCM/MIE Ford V-8 engines (1977 & older)
Use With:
- 18-1906: Manifold Spacer
- 18-1971: Elbow
- 18-1978: Elbow
- 18-4008: Block Off Plate
- 18-4009: Manifold End Plate
- 18-0897: Exhaust Elbow Gasket
- 18-2849-1: Exhaust Elbow Gasket
- 18-0183-1: Exhaust Manifold Gasket
- 18-2832-1: Manifold End Cap Gasket
Interchanges/Replaces
Barr
- MC-1-65604
GLM
- 51250
Mallory
- 9-40502
Mercruiser Stern Drive
- 54100A1
- 54100A5
- 65604A12
- 65604A4
Osco
- 5604
List of Containing Parts
| Sierra Item # | OE/Competitor # | Quantity | Description | Image | Comments |
|---|---|---|---|---|---|
| 18-4263 | Chrysler/Force/US Marine
| 1 | Pipe Plug |  | N/A |
| 18-0183-1 | Barr
| 1 | Exhaust Manifold Gasket |  | N/A |
| 18-2832-1 | Barr
| 2 | Manifold End Cap Gasket |  | N/A |
| 18-2833 | Barr
| 1 | Exhaust Elbow Gasket |  | N/A |
Your Price:
$362.99 Manifold
676-18-1902
Key Features:
- GM Small Block (V8) 305-350 cu.in. (1979-1989) (Starboard)
- V-8 Starboard Side
Use With:
- 18-2949: Exhaust Manifold Gasket
- 18-8502: Exhaust Manifold Mounting Kit
- 18-1921: Manifold Elbow
- 18-2902-1: Exhaust Manifold Gasket
- 18-2902-1-9: Exhaust Manifold Gasket (Priced Per Pkg of 2)
Interchanges/Replaces
Barr
- OMC-1-912441
GLM
- 51410
Mallory
- 9-40602
OMC Stern Drive
- 912441
Osco
- 2441
List of Containing Parts
| Sierra Item # | OE/Competitor # | Quantity | Description | Image | Comments |
|---|---|---|---|---|---|
| 18-0943-2 | Barr
| 1 | Exhaust Elbow Gasket |  | N/A |
| 18-2949 | Barr
| 1 | Exhaust Manifold Gasket |  | N/A |
| 18-710-20-2 | Mercruiser Stern Drive
| 1 | Hose Clamp-13/16 TO 1-3/4 |  | N/A |
| 18-0550 | GLM
| 1 | Plug Off Cap |  | N/A |
Your Price:
$982.99 Manifold
676-18-1960-1
Key Features:
- Supplied with Mounting Package
Additional Details:
- Fits: Most Mercruiser (GM) in-line 6 cyl. engines
Use With:
- 18-8531: Exhaust Manifold Mounting Kit
- 18-0353: Carburetor Mounting Gasket
- 18-1971: Elbow
- 18-1972: Elbow
- 18-1978: Elbow
- 18-4009: Manifold End Plate
- 18-2830-1: Exhaust Manifold Gasket
- 18-2832-1: Manifold End Cap Gasket
Interchanges/Replaces
Barr
- MC 1 58759
GLM
- 51224
HGE
- 8759
Mallory
- 9-40500
Mercruiser Stern Drive
- 52073A1
- 52969A1
- 58759A1
- 58759A10
- 58759A13
- 58759A14
Osco
- 8759
List of Containing Parts
| Sierra Item # | OE/Competitor # | Quantity | Description | Image | Comments |
|---|---|---|---|---|---|
| 18-4263 | Chrysler/Force/US Marine
| 1 | Pipe Plug | | N/A |
| 18-4256 | Mallory
| 1 | Pipe Plug |  | N/A |
| 18-2830-1 | Barr
| 1 | Exhaust Manifold Gasket |  | N/A |
| 18-2833 | Barr
| 1 | Exhaust Elbow Gasket | | N/A |
| 18-0928-1 | Barr
| 1 | Gasket, Manifold End Cap |  | N/A |
| 18-2832-1 | Barr
| 1 | Manifold End Cap Gasket | | N/A |
Your Price:
$326.99 Manifold
676-18-1932
Additional Details:
- Material: CAST IRON
- For: Port & Starboard
Use With:
- 18-2909: Exhaust Manifold Gasket
- 18-1936: Riser
- 18-2909-9: Exhaust Manifold Gasket (Priced Per Pkg of 2)
- 18-2971: Exhaust Manifold Gasket
Interchanges/Replaces
GLM
- 51640
HGE
- 6894
Volvo Penta
- 856894
List of Containing Parts
| Sierra Item # | OE/Competitor # | Quantity | Description | Image | Comments |
|---|---|---|---|---|---|
| 18-2971-1 | Barr
| 1 | Exhaust Manifold Gasket |  | N/A |
| 18-2909 | Barr
| 1 | Exhaust Manifold Gasket |  | N/A |
Your Price:
$602.99 Manifold
676-18-1955-1
Key Features:
- Supplied with mounting package
Additional Details:
- Fits: MCM 140 (1982 & older)
Use With:
- 18-4009: Manifold End Plate
- 18-8549: Hardware Kit [Manifold Bolts]
- 18-1971: Elbow
- 18-1972: Elbow
- 18-1975-1: Riser With Exhaust Tube
- 18-1978: Elbow
- 18-5021: End Plate
- 18-1204-1: Exhaust Manifold Mounting Gasket
- 18-2832-1: Manifold End Cap Gasket
Interchanges/Replaces
Barr
- MC 1 96705
GLM
- 51212
Mercruiser Stern Drive
- 52390A1
- 96705A1
Osco
- 6705
List of Containing Parts
| Sierra Item # | OE/Competitor # | Quantity | Description | Image | Comments |
|---|---|---|---|---|---|
| 18-4009 | Barr
| 1 | Manifold End Plate |  | N/A |
| 18-1990 | Barr
| 1 | Manifold Block Off Plate |  | N/A |
| 18-2833 | Barr
| 1 | Exhaust Elbow Gasket | | N/A |
| 18-2832-1 | Barr
| 1 | Manifold End Cap Gasket | | N/A |
| 18-1204-1 | Barr
| 1 | Exhaust Manifold Mounting Gasket |  | N/A |
| 18-0928-1 | Barr
| 1 | Gasket, Manifold End Cap | | N/A |
| 18-4257 | 1 | Pipe Plug |  | N/A | |
| 18-4263 | Chrysler/Force/US Marine
| 1 | Pipe Plug | | N/A |
Your Price:
$110.99 Elbow
676-18-1946
Additional Details:
- Fits: Chrysler Model 273, 318, 340 & 360 CID engines (1966-1986)
Use With:
- 18-1940: Manifold
- 18-2941: End Cap Gasket (Open)
- 18-4360: Exhaust Elbow Mounting Package
- 18-4361: Exhaust Elbow Mounting Package (Open)
- 18-8506: Exhaust Elbow Mounting Kit
- 18-2941-9: End Cap Gasket (Priced Per Pkg of 2)
- 18-0472-1: Exhaust Elbow Gasket
- 18-1945: Riser
Interchanges/Replaces
Barr
- CM-20-6672
Chrysler Inboard
- 3527794
Mallory
- 9-40313
Osco
- 794
Your Price:
$59.99 Elbow Fitting 90 Degree
676-18-8112
Additional Details:
- Degree: 90
- Size:: 1" NPT x 1 1/2" hose barb
- For: Crusader GM Small Block V8 305-350 cu.in. (Models 220, 270, CM305, CM350XL, CM350HT)
- For: Crusader GM Big Block V8 454 cu.in (Models; 454XL 502XL, CH350)
Use With:
- 18-1898: Manifold
- 18-1925: Manifold
- 18-1926: Manifold
- 18-1929: Manifold
- 18-1933: Manifold
- 18-1982: Manifold
- 18-1997-1: Manifold
- 18-1998-1: Manifold
Interchanges/Replaces
Crusader
- 97296
- 97854
GLM
- 13950
Mallory
- 9-40418
Osco
- 7854
Your Price:
$63.99 Manifold End Plate
676-18-4009
Use With:
- 18-1950-1: Manifold
- 18-1951-1: Manifold
- 18-1958-1: Manifold
- 18-1960-1: Manifold
- 18-1962-1: Manifold
- 18-8512: Exhaust Manifold Mounting Kit
- 18-1954-1: Manifold
- 18-1955-1: Manifold
- 18-1956-3: Manifold
- 18-2832-1: Manifold End Cap Gasket
Interchanges/Replaces
Barr
- 160252
GLM
- 51010
Mallory
- 9-40541
Mercruiser Stern Drive
- 52999
- 60252
- 60252A2
Osco
- 60252
Your Price:
$214.99 Riser w/ Exhaust Tube
676-18-1975-1
Additional Details:
- Fits: Late model Mercruiser 4 cylinder engines
- Fits: MCM 2.5L & 3.0L/LX (1982 & newer)
Use With:
- 18-1901: Manifold
- 18-1954-1: Manifold
- 18-1955-1: Manifold
- 18-2748: Exhaust Boot
- 18-2833: Exhaust Elbow Gasket
- 18-8551: Hardware Kit [Exhaust Elbow Bolts]
- 18-2819-1: Exhaust Elbow Gasket
- 18-1956-3: Manifold
Interchanges/Replaces
Barr
- MC-20-12076
GLM
- 51160
Mallory
- 9-40555
Marine Power
- 6000-33A
Mercruiser Stern Drive
- 12076A1
- 12076A2
- 95864A2
Osco
- 2076
List of Containing Parts
| Sierra Item # | OE/Competitor # | Quantity | Description | Image | Comments |
|---|---|---|---|---|---|
| 18-2748 | GLM
| 1 | Exhaust Boot |  | N/A |
| 18-2833 | Barr
| 1 | Exhaust Elbow Gasket | | N/A |
| 18-710-72-2 | Mercruiser Stern Drive
| 4 | Hose Clamp-4-1/16 TO 5 | | N/A |
| 18-8551 | GLM
| 1 | Hardware Kit [Exhaust Elbow Bolts] |  |
Your Price:
$177.99 Elbow
676-18-1978
Additional Details:
- Application: V-8 inboard applications only
Use With:
- 18-1950-1: Manifold
- 18-1951-1: Manifold
- 18-1954-1: Manifold
- 18-1955-1: Manifold
- 18-1958-1: Manifold
- 18-1960-1: Manifold
- 18-1962-1: Manifold
- 18-2833: Exhaust Elbow Gasket
- 18-4362: Exhaust Elbow Mounting Package
- 18-1906: Manifold Spacer
- 18-4008: Block Off Plate
- 18-8514: Exhaust Elbow Mounting Kit
- 18-8554: Exhaust Elbow Mounting Kit
- 18-1956-3: Manifold
Interchanges/Replaces
Barr
- MC-20-76771
GLM
- 51190
Mallory
- 9-40556
Mercruiser Stern Drive
- 53779A1
- 53779A2
- 60427A2
- 76771A2
- 76771A3
Osco
- 6771