We reserve the right to make changes in design or add improvements without incur-
ring the obligation to make such changes in equipment previously manufactured.

PARTS-SERVICE

GRAM

SUBJECT: Perkins 4.263, 3.152, 4.203 Crankshaft Thrust Bearings

There has been much confusion as to which thrust bearings are to be used and their location. In some
cases, two P/N 266458 have been used resulting to failure due to spinning. Be sure to install the P/N
161292 with the anti-rotation tang on the bottom.

A-A-66 R02

DATE: September 23, 1975

MODEL: S125-150A,
P60-80A, H110-150F,
KE S&H60,
S30-50CH30-60H

ENGINE

S125, P60, H110F

161291

4.236

161292

Interchangeability:

Upper

Lower

Upper

P/N

Engine
Size

Lower

P/N

S60-80B, M30-60H,

266458

4.203

159828

H60-90C, KE

S30-50C

266458

3.152

159828

Not affected.

Parts Stock:

Not affected.

Effective Serial Number:

Not affected.