OMC Parts Drawing *Cobra *Mercruiser *Alpha SEI Outdrives

GM-Chevy 305 / 350 V8 complete manifold set, risers, gaskets

Last updated on 11/11/2023

  • Exhaust manifolds, risers and parts for V8 small block models
  • Compatible with Mercruiser and Alpha One
  • Chevy or GM engine with 5.0 liter 305 cubic inch and 5.7 liter 350 cubic inch V8 motors
  • Serial numbers 6899058 to 0M300000
  • Conversion kits from older ‘log style’ to newer center rise assembly available
  • Manufactured by GLM Marine with increased water cooling area
  • Mercruiser Exploded View Outdrive Drawings click here
  • Full 3 year manufacturer warranty

Mercruiser parts V8 exhaust manifold

Exhaust manifold applications
P/N 58231
Complete set with P/N 51110 3 inch riser

Parts included with kit:

P/N 51230 Cast iron manifold assembly
OEM number 860246Q11 x 2 units
P/N 51110 Elbow-riser 3 inch x 2 OEM 98504A3
P/N 31100 Gasket / 27-33395 x 2
P/N 30240 Gasket / 27-863724 x 2
P/N 13991 90 degree hose fitting x 2
P/N 13992 Drain plug / 22-806608A02 x 2
P/N 80140 O-ring for plug / 25-45253 x 2
P/N 22391 Stud / 16-49545 x 8
P/N 21248 Locknut / 11-46335 x 8
P/N 30240 Gasket / 27-863724 x 2

$598.95 USD

$ 1,438.89 CND

P/N 58232
Complete set with P/N 51140 4 inch riser

 

 

Parts included with kit:
P/N 51230 Cast iron manifold assembly
OEM 860246Q11 x 2 units
P/N 51140 Elbow-riser 4 inch x 2 units
OEM 807988A2
P/N 31100 Gasket / 27-33395 x 2
P/N 30240 Gasket / 27-863724 x 2
P/N 13991 90 degree hose fitting
OEM number 22-806926 x 2
P/N 13992 Drain plug / 22-806608A02 x 2
P/N 80140 O-ring for plug / 25-45253 x 2
P/N 22391 Stud / 16-49545 x 8
P/N 21248 Locknut / 11-46335 x 8
P/N 30240 Gasket / 27-863724 x 2

$599.95 USD

$ 1,289.89 CND

Photo

Description / OEM #

Price
(USD)

Price (Canadian)

51230 GLM

P/N 51230 Exhaust manifold assembly years 1983 and up with serial numbers 6899058 to 0M300000.

OEM 860246Q11

$190.95

$ 363.89

51140 Mercruiser riser

P/N 51140 4 inch 7 degree elbow / riser

807988A2

$143.95

$ 268.89

51110 3 inch 15 degree elbow, Mercruiser V8 GLM, Mercruiser exhaust riser 15 degree 3" V6-V8 1981-2002

51110 Riser 3 inch 15 degree

P/N 51110 3 inch 15 degree elbow / riser

98504A3

$147.95

$ 314.89

31100 Exhaust manifold gasket

P/N 31100 Manifold gasket

27-33395

$5.95

$ 17.89

30240, Mercruiser V8 GLM

30240 Elbow gasket OEM 27-863724

P/N 30240
Riser gasket for raw water with OEM number 27-863724

$4.95

$ 7.89

21892 Plug

P/N 21892 Plug (steel)

22-41622

$4.95

$6.89

Mercruiser V8 GLM, mounting screw

22381 Mounting screw

P/N 22381 Screw – steel, zinc plated. 8 units included in P/N 58232. OEM 10-43749

$4.95

$ 6.89

Mercruiser drain plug, Mercruiser exhaust manifold V6 conversion kit 4.3 liter

13990 Drain plug

P/N 13990 Hose fitting with drain plug kit.

22-806926A1

Includes
P/N 13991 Hose fitting 22-806926
P/N 13992 Drain plug 22-806608A02
P/N 80140 O-ring 25-45253

$6.95

$ 11.89