Kent
As for the gaskets, good old silicone can be used, no idea on the seal. Is it the rear main seal? or just a std round seal with a spring inside?
I'd be temped to contact perkins directly, or try a few dealers (perkins and bobcat) someone may have old stock around even if its discontinued. Often when parts are hard to find it keeps a really dedicated dealer to keep searching out the usual channels
Do you know the model of the engine?
Regards
Ken
bobcat.com historical specs put it as follows
LOADER SPECIFICATIONS
Model
843
First Year of Production
1983
Last Year of Production
1986
Engine Model
4.154/200
Engine Fuel
Diesel
Engine Cooling
Liquid
Displacement
153.9 cubic in
Horsepower
54 HP
Number of Cylinders
4
Operating Weight
6480 lbs
Rated Operating Capacity (SAE)
1700 lbs
Tipping Load
3420 lbs
Travel Speed - Low
-6.3 mph
Travel Speed - High
-6.3 mph
Pump Capacity
16.1 GPM
Hydraulic Pump Pressure
2125 psi
Length
131.4 in
Width
62.4 in
Height
80.4 in
Height to Bucket Hinge Pin
119.6 in
Dump Angle @ Maximum Height
37 deg
Ground Clearance
8.4 in
Angle of Departure
28 deg
Rollback Angle
25 deg
Wheelbase
38.6 in
Wheel Tread
n/a
Vehicle Steering
Dual Levers
Hydraulic (Lift and Tilt)
Dual Pedals
Cylinders: Lift - Bore
2.25 in
Cylinders: Lift - Rod
1.5 in
Cylinders: Lift - Stroke
33.5 in
Cylinders: Tilt - Bore
3.25 in
Cylinders: Tilt - Rod
1.5 in
Cylinders: Tilt - Stroke
17.95 in
Tire Size
8.25x15
Auxiliary Hydraulics
std
Operating Lights
std
Parking Brake
std
BICS System (Interlock)
n/a