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Mercruiser 4.3 liter GM exhaust manifold set

Riser, manifold and hardware kit for 4.3L 262 GM/Chevy V6 motors

Last updated on 11/7/2023

  • Exhaust manifolds and risers for Mercruiser and Alpha One V6 models
  • Compatible with 2 piece 4.3L 262 and 229 CID, 175-205
  • Conversion kits from 1 piece to 2 piece available for V6 models
  • Manufactured by GLM Marine with a 3 year warranty
  • Mercruiser Exploded View Outdrive Drawings click here
  • Increased water cooling area over OEM manifold

Mercruiser GM V6 exhaust manifold 262

P/N 58221 Complete set with P/N 51110 3 inch riser

$799.95 US

$ 1,433.89 CDN

P/N 58222 Complete set with P/N 51140 4 inch riser

$799.95 US

$ 1,298.89 CDN

Mercruiser 4.3 liter GM exhaust manifold set Included
P/N 51220 Cast iron manifold assembly / 99746A17 x 2
P/N 51110 / 98504A3 or 51140 / 807988A2 Elbow – riser (3 inch or 4 inch) x 2
P/N 32170 Gasket / 27-99757 x 2 P/N 30240 Gasket / 27-863724 x 2
P/N 13991 90 degree hose fitting / 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

Photo

Description / OEM #

Price (USD)

Price (Canadian)

Mercruiser Alpha One lower unit parts

51220 GLM assembly

P/N 51220 Exhaust manifold assembly (1983 – 2001) 99746A17

Includes
P/N 13991 90 Degree hose fitting 22-862210A01
P/N 13992 Drain plug 22-806608A02
P/N 80140 O-ring 25-45253
P/N 32170 manifold gasket 27-99757

$218.95

$ 375.89

51140 Riser

P/N 51140 4 inch 7 degree riser assembly and hardware.

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 Elbow

P/N 51110 3 inch 15 degree elbow assembly with studs and gasket.

98504A3

$147.95

$ 314.89

32170 Mounting gasket, Mercruiser Manifold & Riser 3" Kit V6 GM 1985-2002

32170

P/N 32170 Mounting gasket

27-99757

$6.95

$ 11.89

30240 Riser Gasket, Mercruiser exhaust manifold V6 conversion kit 4.3 liter

32040

P/N 30240 Riser gasket
(for raw water)

27-863724

$4.95

$ 7.89

Mercruiser exhaust manifold V6 conversion kit 4.3 liter

22391 Threaded stud

P/N 22391 Steel stud, threaded on both ends (used for P/N 51110)

16-49645

Mercruiser exhaust manifold V6 conversion kit 4.3 liter

22381 Mounting screw

P/N 22381 Screw – steel, zinc plated. 8 units included in P/N 58222.

10-43749

$4.95

$6.89

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

13990 drain plug

Item 10
P/N 13990 Hose fitting with drain plug kit. Includes 90 degree hose fitting, drain plug and o-ring.

22-806926A1

$6.95

$ 11.89