Parts Diagram | ## | Part # | Description | Qty | Notes |
| 1 | 420950770 | Cylinder head gasket | 1 | |
2 | 420613978 | Cylinder head assembly. includes 2 to 5 | 1 | |
3 | 420929650 | Drive pin 5 x 10 | 2 | |
4a | 420641323 | Plug screw M10 X 1 | 1 | |
4b | 420924720 | Hose nipple | 1 | |
5 | 420253929 | Valve guide | 12 | |
6 | 420254682 | Exhaust valve, 31 mm | 6 | |
7 | 420254293 | Intake valve, 38 mm | 6 | |
8 | 420630200 | Valve stem seal | 12 | |
9 | 420238180 | Valve spring | 12 | |
10 | 420838280 | Valve spring inside | 12 | |
11 | 420254283 | Valve spring retainer | 12 | |
12 | 420253645 | Valve cotter | 24 | |
13 | 420837854 | Cam shaft | 1 | |
14 | 420851693 | Cam shaft guide | 1 | |
15 | 420254307 | Timing gear, 38 teeth | 1 | |
16 | 420840031 | Screw M6 x 12 | 3 | |
17 | 420898042 | Cam shaft chain | 1 | |
18 | 420236541 | Chain tension guide | 1 | |
19 | 420236501 | Chain guide | 1 | |
20 | 420660037 | Cover | 1 | |
21 | 420627494 | Thrust washer | 1 | |
22 | 420856500 | Vent valve. includes 22 to 24 | 1 | |
23 | 420630125 | V-ring | 1 | |
24 | 420950870 | O-ring | 1 | |
25 | 420641238 | Flanged torx screw M6 x 25 | 2 | |
26 | 420254329 | Rocker arm, exhaust | 6 | |
27 | 420254316 | Rocker arm, inner | 3 | |
28 | 420854594 | Rocker arm, shaft | 1 | |
29 | 420641080 | Torx screw M8 x 72 | 6 | |
30 | 420641110 | Torx flanged screw M11 X 147 | 8 | |
31 | 420641238 | Flanged torx screw M6 x 25 | 2 | |
32 | 420851751 | Spark plug pipe | 3 | |
33 | 420950820 | Valve cover gasket | 1 | |
34 | 420811589 | Valve cover | 1 | |
35 | 420440560 | Torx screw M6 x 30.5 | 8 | |
36 | 420641488 | Torx screw M6 x 8 | 4 | |
37 | 420660167 | Valve cover | 1 | |
38 | 707000246 | Spark plug, NGK dcp-R8E | 3 | |
39 | 420664020 | Stick coil | 3 | |
40 | 278001016 | Temperature sensor | 1 | |
41 | 420664043 | Cam shaft position sensor. includes 41 to 42 | 1 | |
42 | 420631890 | O-ring | 1 | |
43 | 420641048 | Flanged torx screw M6 x 16 | 1 | |
44 | 420851618 | Transport bracket pto | 1 | |
45 | 420641048 | Flanged torx screw M6 x 16 | 2 | |
46 | xxx | Exhaust manifold | 1 | |
47 | 420641198 | Flanged torx screw M6 x 45 | 12 | |
48 | 420951380 | Transport bracket front | 1 | |
49 | 420641048 | Flanged torx screw M6 x 16 | 2 | |
50 | 420660090 | Rubber bracket | 1 | |
51 | 420460830 | Sealing cup | 3 | |