V6 Mercruiser manifold & riser 1985-2002

4.3 Liter V6 Chevy manifold and 4 inch riser kit
for 185, 205, 262 models

Updated May 9 2026

Includes center rise manifold, matching elbow, gaskets and bolts for riser.
Mercruiser outdrive drawings
Riser is 4 inch outlet length at 7 degrees
For 185, 205, 262 models
3 year warranty from GLM Marine

V6 Mercruiser manifold

51220-51140 Exhaust manifold set V6 Chevy

P/N 51220 – 51140

Manifold assembly kit – Replaces Mercury 99746 A17 and 807988 A2. Includes installation hardware and gaskets.

$361.95 US

$ 375.89 CDN

Parts

P/N 51220 manifold OEM 99746 A17
P/N 51140 Cast iron elbow / 807988 A2
P/N 22381 Steel screws / 10 – 43749 x 4
P/N 30240 Riser gasket / 27 – 863724
P/N 32170 Gasket / 27 – 99757
P/N 21892 Plug / 22 – 41622

Customers who purchased P/N 51220 - 51140 also looked at:

Photo

Description / OEM #

Price (USD)

Price (Canadian)

58222

P/N 58222

V6 manifold kit for port and starboard. Comes with gaskets and drain plugs.

For 4.3L GM/Chevy motors, center rise style.

$799.95

$ 1,298.89

32170 Gasket

P/N 32170

Exhaust gasket for P/N 51220.

27 – 99757

$6.95

$ 11.89

51140 elbow

P/N 51140

Replacement 4″ 7 degree elbow assembly without spacer. Includes mounting hardware and gasket.

807988 A2

$143.95

$ 268.89

58992 Conversion kit

P/N 58992

Complete conversion kit from 1 piece exhaust assembly to 2 piece center rise style.

Included
P/N 51220 Exhaust manifold assembly
99746 A17 x 2
P/N 51140
Elbow 807988 A2
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 – 806608 A02 x 2
P/N 80140 O-ring for plug 25 – 45253 x 2
P/N 22391 Stud
16 – 49545 x 8
P/N 21248 Flange nut
11 – 46335 x 8
P/N 89120 Upper bellow 32 – 44348T x 2
P/N 89130 Lower bellow 32 – 1435801 x 2
P/N 01100 Hose clamp 54 – 81504372 x 12
P/N 50750 Exhaust tube 14478T 01 x 2

$999.95

$ 1,842.89

15201 Chevy V6 and V8 Engine water pump

P/N 15201

Engine water re circulating pump for GM 262 CID 4.3L small block motor.

850399 -1