Manifolds & Accessories - Mercury

4” Exhaust Outlet Mercruiser 44354
Your Price:
$168.99

4" Exhaust Outlet Mercruiser 44354

676-18-1976-1

4” Exhaust Outlet Riser 7 degree down angle
Replaces: Mercruiser 44354, 807914, 807988
Use mounting kit 9-40578 (For late I/O and inboards)
Our Inboard & Sterndrive Cooling Systems are built of the best marine grade material. We designed each part to stand up to the harsh marine environment, and made to specifically fit to the application you need.


Elbow
Your Price:
$227.99

Elbow

676-18-1973

Additional Details:

  • Fits: Most early Model 120hp Mercruiser applications

Use With:

Interchanges/Replaces

Barr

  • MC-20-55538

Mallory

  • 9-40553

Mercruiser Stern Drive

  • 39920
  • 39920A1
  • 55538A2

Osco

  • 5538

Elbow
Your Price:
$286.99

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:

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
18-0897Barr
  • MC 20 99208
  • MC47-27-41813
GLM
  • 30240
Mallory
  • 9-61413
Mercruiser Stern Drive
  • 27-41813
  • 27-860233
  • 27-863724
Osco
  • 8503-GR
1Exhaust Elbow Gasket N/A

Elbow
Your Price:
$301.99

Elbow

676-18-1978

Additional Details:

  • Application: V-8 inboard applications only

Use With:

Interchanges/Replaces

Barr

  • MC-20-76771

GLM

  • 51190

Mallory

  • 9-40556

Mercruiser Stern Drive

  • 53779A1
  • 53779A2
  • 60427A2
  • 76771A2
  • 76771A3

Osco

  • 6771

Elbow
Your Price:
$183.99

Elbow

676-18-1971

Additional Details:

  • Fits: MCM 140 (1966-1982), 470 (1976-1977), 165 & 200 in-line 6 cyl.
  • Fits: MCM Ford V-8 engines & MCM GM V-8 (305 & 350 cid) engines (1982 & older)

Use With:

Interchanges/Replaces

Barr

  • MC 20 76351
  • MC-20-60426

GLM

  • 51120

HGE

  • 6351

Mallory

  • 9-40558

Marine Power

  • 0993-001

Mercruiser Stern Drive

  • 49964A1
  • 49964A2
  • 60426A1
  • 76351A04
  • 76351A1
  • 76351A2

Osco

  • 6351

End Cap to Manifold Gasket
Your Price:
$0.99

End Cap to Manifold Gasket

676-18-1210

Additional Details:

  • Fits: MCM 120 & 160

Interchanges/Replaces

Barr

  • MC472739923

GLM

  • 31420

Mallory

  • 9-61409

Mercruiser Stern Drive

  • 27-39923

Osco

  • 52076

End Plate Gasket 9-40570
Your Price:
$3.99

End Plate Gasket 9-40570

676-18-2832

End Plate Gasket
Included in 9-40570 mounting kit
Our Inboard & Sterndrive Cooling Systems are built of the best marine grade material. We designed each part to stand up to the harsh marine environment, and made to specifically fit to the application you need.


Exhaust Boot
Your Price:
$35.99

Exhaust Boot

676-18-2748

Additional Details:

  • Upper Tube: 4" or 101.6mm
  • Fits: MCM 120, 140 & GM V-6 & V-8 engines

Use With:

Interchanges/Replaces

GLM

  • 89120

Mallory

  • 9-72805

Mercruiser Stern Drive

  • 32-44348
  • 32-44348001
  • 32-44348T

Exhaust Elbow Gasket
Your Price:
$10.99

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:

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

Exhaust Elbow Gasket
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:

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

Exhaust Elbow Gasket
Your Price:
$3.99

Exhaust Elbow Gasket

676-18-0954

Additional Details:

  • Fits: MIE 470

Interchanges/Replaces

Barr

  • MC47-27-92720

GLM

  • 32630

Mallory

  • 9-61415

Mercruiser Stern Drive

  • 27-92720

Exhaust Elbow Gasket
Your Price:
$3.99

Exhaust Elbow Gasket

676-18-2833

Additional Details:

  • Fits: MCM 120 (1993 & newer), 140/3.0L, 470, 165 in-line 6 cyl., GM V-8 small block (1982 & older)
  • Fits: Ford V-8 engines

Use With:

Interchanges/Replaces

Barr

  • MC472799777

GLM

  • 31520

Mallory

  • 9-61407

Mercruiser Stern Drive

  • 27-52076
  • 27-99777
  • 27-997771
  • 27-997772
  • 27-99777B2

Osco

  • 52076

Exhaust Elbow Gasket Mercruiser 27-97542
Your Price:
$14.99

Exhaust Elbow Gasket Mercruiser 27-97542

676-18-0113

Exhaust Elbow Gasket
Replaces: Mercruiser 27-97542
For: 3.7L w/cast iron manifolds 1983-89
Our outdrive mounting gaskets are more tear resistant than the OEM and other aftermarket competitors and feature our exclusive “anti-stick” coating for easy removal the next time they need replaced.


Exhaust Elbow Gasket Mercury 27-18272
Your Price:
$9.99

Exhaust Elbow Gasket Mercury 27-18272

676-18-0881

Exhaust Elbow Gasket
Replaces: Mercury Marine 27-18272
For: 3.7L w/aluminum manifolds 1985-89
Our outdrive mounting gaskets are more tear resistant than the OEM and other aftermarket competitors and feature our exclusive “anti-stick” coating for easy removal the next time they need replaced.


Exhaust Elbow Mounting Kit
Your Price:
$21.99

Exhaust Elbow Mounting Kit

676-18-8505

Additional Details:

  • For: Mercruiser GM V-6 229 & 262 cu. in. (models 185 & 205)
  • For: GM Small Block V-8 305-350 cu. in. (models 200, 228, 230, 260 & 898)
  • For: GM Big Block V-8 454 cu. in. (models 330, 340 & 7.4L)

Use With:

Interchanges/Replaces

Mallory

  • 9-40578

Osco

  • 4354-MK

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-0897Barr
  • MC 20 99208
  • MC47-27-41813
GLM
  • 30240
Mallory
  • 9-61413
Mercruiser Stern Drive
  • 27-41813
  • 27-860233
  • 27-863724
Osco
  • 8503-GR
1Exhaust Elbow Gasket N/A

Exhaust Elbow Mounting Kit
Your Price:
$35.99

Exhaust Elbow Mounting Kit

676-18-8514

Additional Details:

  • Caution: Not for fresh water/closed cooling systems
  • For: Mercruiser Ford Small Block V-8 302-351 cu. in. (models 215, 225, 233, 255 & 888)
  • For: GM Small Block V-8 305-351 cu. in. (models 198, 228 & 898)

Use With:

Interchanges/Replaces

Mallory

  • 9-40579

Osco

  • 6371-MK-SP

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-4008Barr
  • MC-20-60207
GLM
  • 50006
Mallory
  • 9-40540
Mercruiser Stern Drive
  • 60207
Osco
  • 60207
1Block Off Plate N/A
18-2833Barr
  • MC472799777
GLM
  • 31520
Mallory
  • 9-61407
Mercruiser Stern Drive
  • 27-52076
  • 27-99777
  • 27-997771
  • 27-997772
  • 27-99777B2
Osco
  • 52076
1Exhaust Elbow Gasket N/A
NSSMercruiser Stern Drive
  • 11-49838
4NutNo ImageN/A
NSSMercruiser Stern Drive
  • 13-35048
4LockwasherNo ImageN/A
NSSMercruiser Stern Drive
  • 16-49545
4StudNo ImageN/A

Exhaust Elbow Mounting Kit
Your Price:
$12.99

Exhaust Elbow Mounting Kit

676-18-8529

Additional Details:

  • For: Mercruiser GM V-6 229 & 262 cu. in. (models 185 & 205)
  • For: GM Small Block V-8 305-350 cu. in. (models 200, 228, 230, 260 & 898)
  • For: GM Big Block V-8 454 cu. in. (models 330, 340 & 7.4L)

Use With:

Interchanges/Replaces

GLM

  • 53300

Mallory

  • 9-40580

Osco

  • 8503A-MK

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-0897Barr
  • MC 20 99208
  • MC47-27-41813
GLM
  • 30240
Mallory
  • 9-61413
Mercruiser Stern Drive
  • 27-41813
  • 27-860233
  • 27-863724
Osco
  • 8503-GR
1Exhaust Elbow Gasket N/A
NSSMercruiser Stern Drive
  • 11-49838
4NutNo ImageN/A
NSSMercruiser Stern Drive
  • 13-35048
4LockwasherNo ImageN/A
NSSMercruiser Stern Drive
  • 16-49545
4StudNo ImageN/A

Exhaust Elbow Mounting Kit
Your Price:
$19.99

Exhaust Elbow Mounting Kit

676-18-8530

Additional Details:

  • For: Mercruiser 4 cyl. 224 cu. in. 3.7L (models 165, 170, 180 & 190)

Use With:

Interchanges/Replaces

Mallory

  • 9-40581

Osco

  • 8561-MK

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-0881-1GLM
  • 32470
Mallory
  • 9-61412
Mercruiser Stern Drive
  • 27-18272
  • 27-97863
Osco
  • 8561-G
1Exhaust Elbow Gasket N/A
NSSMercruiser Stern Drive
  • 10-52143
4ScrewNo ImageN/A

Exhaust Elbow Mounting Kit
Your Price:
$47.99

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:

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
18-0897Barr
  • MC 20 99208
  • MC47-27-41813
GLM
  • 30240
Mallory
  • 9-61413
Mercruiser Stern Drive
  • 27-41813
  • 27-860233
  • 27-863724
Osco
  • 8503-GR
1Exhaust Elbow Gasket N/A
18-2849-1Barr
  • 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
1Exhaust Elbow Gasket N/A

Exhaust Elbow Mounting Kit
Your Price:
$53.99

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:

Interchanges/Replaces

GLM

  • 53430

Mallory

  • 9-40583

Osco

  • 3320-MK-X

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-0897Barr
  • MC 20 99208
  • MC47-27-41813
GLM
  • 30240
Mallory
  • 9-61413
Mercruiser Stern Drive
  • 27-41813
  • 27-860233
  • 27-863724
Osco
  • 8503-GR
1Exhaust Elbow Gasket N/A
18-2849-1Barr
  • 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
1Exhaust Elbow Gasket N/A