|
New
Part No.
|
Old
Part No.
|
Description
|
Model
|
Model
No.
|
|
|
|
Snap
Ring |
DF |
4825
|
|
|
|
Crankcase |
Aero |
4800
|
|
|
|
Crankcase |
DF |
4825
|
|
|
|
Crankcase |
Pro
OB
Semipro OB |
7500
7510
|
|
|
|
Head
(Gold) |
Aero |
4800
|
|
|
|
Finned
Head |
DF |
4825
|
|
|
|
Head
Button/combustion chamber |
Semipro
OB |
7510
|
|
|
|
Cooling
jacket |
Semipro
OB |
7510
|
|
|
|
Air
Cooled Head |
Pro
OB |
7500
|
|
|
|
Wrist
Pin |
Aero
DF
Pro OB
Semipro OB |
4800
4825
7500
7510
|
|
|
|
Connecting
Rod |
Aero
DF
Semipro OB |
4800
4825
7510
|
|
|
|
Connecting
Rod |
Pro
OB |
7500
|
|
|
|
Crankshaft |
Aero |
4800
|
|
|
|
Crankshaft |
DF
Inboard |
4825
7525
|
|
|
|
Crankshaft |
Pro
OB
Semipro OB |
7500
7510
|
|
|
|
Ball
Bearing - PTO Top or Bottom |
Pro
OB
Semipro OB |
7500
7510
|
|
|
|
Ball
Bearing - Front - High RPM |
Aero
DF
Inboard
Pro OB
Semipro OB |
4800
4825
7525
7500
7510
|
|
|
|
Bearing
(Rear) |
Aero
Pro OB
Semipro OB |
4800
7500
7510
|
|
|
|
Ball
Bearing - High R.P.M. (rear) |
DF
Inboard |
4825
7525
|
|
|
|
Drive
Collet |
Aero
DF
Pro OB
Semipro OB |
4800
4825
7500
7510
|
|
|
|
Prop
Driver |
Aero |
4800
|
|
|
|
Prop
Drive |
DF |
4825
|
|
|
|
Flywheel |
Semipro
OB |
7510
|
|
|
|
Flywheel
(Red) |
Pro
OB |
7500
|
|
|
|
Back
Plate Assembly w/ Ball Bearings |
Pro
OB |
7500
|
|
|
|
Back
Cover w/O-ring |
Aero |
4800
|
|
|
|
Back
Plate Only (PTO) |
Pro
OB
Semipro OB |
7500
7510
|
|
|
|
Back
Plate w/Drum Rotor |
DF |
4825
|
|
|
|
Prop
Stud Kit 1/4" - 28 Thread, Washer & Nut |
Aero |
4800
|
|
|
|
Prop
Washer, Stud (2 inch) & Nut |
DF |
|
|
|
|
Prop
Stud |
DF |
4825
|
|
|
|
Screw
set |
Aero
DF |
4800
4825
|
|
|
|
Engine
screw set |
Semipro |
7510
|
|
|
|
Muffler
Screws |
Aero |
4800
|
|
|
|
Lower
Outboard |
OB |
-
|
|
|
|
Adapter
screws |
- |
-
|
|
|
|
Socket
Head Screw (Flywheel) |
Pro
OB
Semipro OB |
7500
7510
|
|
|
|
Wrist
Pin Clip - 2 ea. |
Aero
DF
Pro OB
Semipro OB |
4800
4825
7500
7510
|
|
|
|
O-ring
set, water cooled head |
- |
-
|
|
|
|
Back
Plate O-ring - 2 ea. |
Aero |
4800
|
|
|
|
Mixture
disk O-ring set |
-
|
-
|
|
|
|
O-ring
for Exhaust Adapter |
DF |
4825
|
|
|
|
Gasket
- Carburetor Seal (2ea) |
DF
Pro OB
Semipro OB |
4825
7500
7510
|
|
|
|
Carburetor
O-ring (2ea) |
Aero |
4800
|
|
|
|
Draw
Bar |
Aero
DF
Pro OB
Semipro OB
|
4800
4825
7500
7510
|
|
|
|
Head
Shim |
Aero |
4800
|
|
|
|
Head
Shim |
Pro
OB
Semipro OB
Inboard
DF |
7500
7510
7525
4825
|
|
|
|
Muffler
Gasket |
Pro
OB |
7500
|
|
|
|
Muffler |
Aero |
4800
|
|
|
|
Muffler
Rear Cap Aluminum |
Aero |
4800
|
|
|
|
Muffler
baffle cap, stud kit |
-
|
-
|
|
|
|
Exhaust
Extension Pipe |
DF |
4825
|
|
|
|
Bisson
Pitts Muffler |
Aero |
4800
|
|
|
|
Pipe
Adapter - 0° |
DF |
4825
|
|
|
|
Exhaust
Adapter (w/o O-ring, uses 9023 O-ring) |
Semipro
OB |
7510
|
|
|
|
Muffler |
Pro
OB |
7500
|
|
|
|
Exhaust
Adapter |
Pro
OB |
7500
|
|
|
|
Piston
and Sleeve |
Aero |
4800
|
|
|
|
Piston
& Sleeve |
DF |
4825
|
|
|
|
Piston
& Sleeve Assembly |
Pro
OB
Semipro OB |
7500
7510
|
|
|
|
Fitting
- Inlet |
Semipro
OB |
7510
|
|
|
|
Lower
End Assembly - Complete |
Semipro
OB |
7510
|
|
|
|
Lower
End Assembly - Complete |
Pro
OB |
7500
|
|
|
|
Lower
End Halves - Matched (Set Only) |
Semipro
OB |
7510
|
|
|
|
Lower
End Halves - Matched (Set Only) |
Pro
OB |
7500
|
|
|
|
Flex
Shaft |
Pro
OB
Semipro OB |
7500
7510
|
|
|
|
Water
Intake Tube Assembly |
Semipro
OB |
7510
|
|
|
|
Hinge
Pin - Stainless |
Pro
OB
Semipro OB |
7500
7510
|
|
|
|
Prop
Nut - #10-32 Thread (2 per bag) |
Pro
OB
Semipro OB |
7500
7510
|
|
|
|
Fitting
- Outlet |
Semipro
OB |
7510
|
|
|
|
Steering
Arm |
Pro
OB
Semipro OB |
7500
7510
|
|
|
|
Tubing
- Teflon - Flex Shaft Guide |
Pro
OB
Semipro OB |
7500
7510
|
|
|
|
Prop
Shaft Assembly |
Pro
OB
Semipro OB |
7500
7510
|
|
|
|
PTO
Shaft |
Pro
OB
Semipro OB |
7500
7510
|
|
|
|
Prop
Drive Dog |
Pro
OB
Semipro OB |
7500
7510
|
|
|
|
Hinge
w/ Bushing |
Pro
OB
Semipro OB |
7500
7510
|
|
|
|
Maintenance
Kit - (Lower End Only) Screws (5), Flex Shaft, Teflon Tube &
Lube |
Pro
OB
Semipro OB |
7500
7510
|
|
|
|
K&B
Carburetor |
Aero |
4800
|
|
|
|
Carburetor
Maintenance Kit |
DF
Pro OB |
4825
7500
|
|
|
|
Carburetor
Complete |
Semipro
OB |
7510
|
|
|
|
.453 Carburetor
Complete
|
Pro
OB
DF |
7500
4825
|
|
|
|
Carburetor
Body w/Carburetor Barrel |
Aero |
4800
|
|
|
|
Carburetor
Body |
DF
Pro OB |
4825
7500
|
|
|
|
Carburetor
Body |
Semipro
OB |
7510
|
|
|
|
Carburetor
Barrel |
DF
Pro OB |
4825
7500
|
|
|
|
Carburetor
Barrel |
Semipro
OB |
7510
|
|
|
|
Snap
Ring |
Pro
OB
Semipro OB |
7500
7510
|
|
|
|
Fitting,
Pressure |
Aero |
4800
|
|
|
|
Fuel
Fitting – Inlet |
Pro
OB
DF |
7500
4825
|
|
|
|
Carburetor
Control Arm |
-
|
-
|
|
|
|
Low
Speed Idle Disk w/ O-ring |
Aero |
4800
|
|
|
|
Low
Speed Disk |
DF
Pro OB
Semipro OB |
4825
7500
7510
|
|
|
|
Needle
Valve Bracket |
Aero |
4800
|
|
|
|
Throttle
Cable Bracket |
Pro
OB
Semipro OB |
7500
7510
|
|
|
|
Needle
Valve Kit |
Aero |
4800
|
|
|
|
Carburetor
Maintenance Kit |
Aero |
4800
|
|
|
|
Maintenance
Kit (all screws & O-ring) |
DF |
4825
|
|
|
|
Flex
Shaft Lube |
Pro
OB
Semipro OB |
|
|
|
|
Mixture
Control needle Valve |
Pro
OB
Semipro OB |
7500
7510
|
|
|
|
Carburetor
Maintenance Kit |
Semipro
OB |
7510
|
|
|
|
Remote
Needle Valve Assembly |
Aero
DF
Pro OB
Semipro OB |
4800
4825
7500
7510
|
