O.S. Engines

Back Plate: 40-46 LA

Cover Plate: GGT10

Cover Plate: 105HZ

Cover Plate: 21XZ-B Ver2

Carb Reducer 5.5mm: #11H, #11HB, 12TZ

Carburetor Reducer 6.5mm: Speed 21 V-SpecII

Carburetor 61G: 91HZ-R Speed 3D 3C

Carburetor Complete #61N: FS72 Alpha

Carburetor 21J3-B: Speed B21 Adam Drake

Carburetor 61D: 65AX

Carburetor 40K: 46AXII

Crankpin Stop Screw: GT60

Cam Cover Screws: FS-70 Ultimate (2)

Cylinder Rebuild Kit: R21

Inner Head: T1201 Speed

Outer Head: T1202 Speed

Carburetor Rotor: #120AX

O.S. Inner Head with O-Ring Speed B2103 Type R & S

Outer Head O.S. Speed T1204

Cam Follower: FS-61, 48 Surpass

Rear Cover: Sirius 7

Back Plate: Sirius 7

Cover Plate: FS91-P

Carburetor 70R: FS155A-P