Page 47 - OMC_Catalog_Flipbook

Cobra

PROP SHAFT PARTS - ALL (1991-1993)

No. 86810 No. 22950 No. 11408 No. 22373 No. 27850 No. 16300
PROP SHAFT PROP SHAFT BEARING CARRIER SCREW TAB THRUST BEARING -
SEAL (2) BEARING OEM: 5004257 OEM: 350271 OEM: 333957 REVERSE GEAR
OEM: 334950 OEM: 434467 OEM: 382408
Comes with:
86810, 22950, 22870

No. 82400 No. 22870 No. 21642
O-RING - REVERSE GEAR THRUST WASHER -
BEARING BEARING REVERSE GEAR
CARRIER OEM: 382407 OEM: 314731
OEM: 305123

No. 21651 No. 22417
THRUST PROP SHAFT 1-1/4
WASHER (1991-93)
OEM: 336565 OEM: 5004765

FOR 1-1/4” DIA. PROP SHAFT
No. 22417

For the 1991 model year the OMC Cobra lower gear housing was redesigned
with a stronger propellor shaft and bearing carrier.

Propellor Shaft Changes
A shoulder machined into the propellor shaft contacts the reverse gear and prevents the shaft
from being pulled out of the gear housing when shifted into reverse. The 1991-1993 propellor
shaft utilizes a hardened steel thrust washer between the shoulder and the reverse gear. This
hardened thrust washer keeps the shoulder on the prop shaft from damaging the inside of the
gear when the boat is shifted into reverse. The shoulder on the 1991-1993 propellor shaft is
machined deeper to accomodate the hardened thrust washer.

Another improvement on the 1991-1993 propellor shaft is an increase in diameter from 1-3/16
inches to 1-1/4 inches. The diameter was increased at the needle bearing, the prop shaft seal
and the propellor thrust washer locations. The propellor splines remained the same.

Bearing Carrier
The 1991 - 1993 bearing carrier was redesigned with two hold-down tabs and two 5/16 inch bolts
holding the carrier to the gear housing. The older carrier installs with four 1/4 inch bolts, a retainer
plate and two internal retainer rings. The new carrier GLM #11408 also comes with a larger
needle bearing and prop shaft seals for the larger diameter prop shaft. It can only be installed
into 1991 and newer lower gear housings that have the notches for the hold down tabs.

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