Manifold Riser Spacer Kit 

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:

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
18-1908Barr
  • MC-20-93320A3
Mallory
  • 9-40530
Mercruiser Stern Drive
  • 93320
Osco
  • 3320
2Manifold Riser Spacer N/A
18-4258Crusader
  • 113186
GLM
  • 21892
Mallory
  • 9-41205
Mercruiser Stern Drive
  • 22-33198
  • 22-33198A1
  • 22-41622
  • 22-46754
Osco
  • 1016012
2Pipe Plug N/A
18-4263Chrysler/Force/US Marine
  • 22-328021
  • 22-328022
  • F700633
  • FI5810151
GLM
  • 21893
Mercruiser Stern Drive
  • 22-32802
  • 22-328021
  • 22-328022
  • 22-841908
Mercury Marine
  • 22-30139
  • 22-32802
  • 22-328021
  • 22-328022
2Pipe Plug 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
2Exhaust Elbow Gasket N/A
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
2Exhaust Elbow Gasket N/A
18-0672Barr
  • 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
2Exhaust Elbow Gasket N/A
NSSMercruiser Stern Drive
  • 11-49838
8LockwasherNo ImageN/A
MSRP: $474.99
Your Price: $402.99
You Save: 15% off MSRP!

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