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Cylinder Head & Valve Drive

Triumph Scrambler 400 · Cylinder Head, Valves, Pistons, Liners, Camshaft & Balancers · 71 parts

Exploded parts diagram — Cylinder Head & Valve Drive, Triumph Scrambler 400

Open this diagram in the interactive viewer → Click any callout on the drawing to jump to the part.

Motorcycles this catalogue covers

Scrambler 400 X

Scrambler 400 XC

Our parts team checks fitment against your motorcycle before any order ships.

Every part on this diagram

1

Cylinder Head with Holder Cam

Qty 1

Low stock at Triumph

$531.20

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3

Guide, Chain, Top

Qty 1

Triumph has stock

$5.38

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4

Bolt, Flanged, M6 x 1

Qty 2

Triumph has stock

$0.53

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5

Bolt, Flanged, M6 x 1

Qty 6

Triumph has stock

$0.32

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6

Bolt, Socket, Step, M10 x 1.25

Qty 4

Low stock at Triumph

$8.12

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7

Qty 4

Low stock at Triumph

$0.62

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8

Bolt, Socket, Step, M6 x 1

Qty 2

Low stock at Triumph

$3.98

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9

Qty 2

Low stock at Triumph

$0.43

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10

Screw, Socket, Step, M6 x 1

Qty 1

Triumph has stock

$8.12

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11

Qty 1

No date from Triumph yet

$3.54

On backorder Ask the parts desk

12

Qty 1

No date from Triumph yet

$33.65

On backorder Ask the parts desk

13

Cover, Thermostat

Qty 1

Triumph has stock

$8.96

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14

Bolt, Flanged, M6 x 1

Qty 2

Triumph has stock

$0.32

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15

Nozzle Jet, Oil

Qty 4

No date from Triumph yet

$2.73

On backorder Ask the parts desk

16

Gasket, Cylinder Head

Qty 1

Triumph has stock

$49.32

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17

Pin Dowel Dia 14

Qty 4

Triumph has stock

$0.96

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18

Breather Outlet

Qty 1

Triumph has stock

$3.78

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19

Bolt, Flanged, M6 x 1

Qty 1

Triumph has stock

$0.20

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20

Qty 1

Triumph has stock

$0.32

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21

Qty 2

Triumph has stock

$17.48

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22

Qty 2

Triumph has stock

$30.40

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23

Seat, Spring, Valve

Qty 4

Triumph has stock

$3.45

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24

Seat, Valve, Stem

Qty 4

Triumph’s Aug 14, 2026 date has passed, we’ll confirm

$3.88

On backorder Ask the parts desk

25

Qty 4

Triumph has stock

$14.14

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26

Retainer, Spring Valve

Qty 4

Triumph has stock

$1.79

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27

Kit, Shim, 2.0mm

Qty 1

Triumph has stock

$4.18

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27

Kit, Shim, 2.04mm

Qty 1

Triumph has stock

$4.26

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27

Kit, Shim, 2.08mm

Qty 1

Triumph has stock

$4.26

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27

Kit, Shim, 2.12mm

Qty 1

Triumph has stock

$4.26

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27

Kit, Shim, 2.16mm

Qty 1

Triumph has stock

$4.26

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27

Kit, Shim, 2.20mm

Qty 1

Triumph has stock

$4.26

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27

Kit, Shim, 2.24mm

Qty 1

Triumph has stock

$4.26

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27

Kit, Shim, 2.28mm

Qty 1

Triumph has stock

$4.26

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27

Kit, Shim, 2.30mm

Qty 1

Triumph has stock

$4.26

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27

Kit, Shim, 2.32mm

Qty 1

Triumph has stock

$4.26

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27

Kit, Shim, 2.34mm

Qty 1

Triumph has stock

$4.26

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27

Kit, Shim, 2.36mm

Qty 1

Triumph has stock

$4.26

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27

Kit, Shim, 2.38mm

Qty 1

Triumph has stock

$4.26

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27

Kit, Shim, 2.40mm

Qty 1

Triumph has stock

$4.26

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27

Kit, Shim, 2.42mm

Qty 1

Triumph has stock

$4.26

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27

Kit, Shim, 2.44mm

Qty 1

Triumph has stock

$4.26

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27

Kit, Shim, 2.46mm

Qty 1

Triumph has stock

$4.26

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27

Kit, Shim, 2.48mm

Qty 1

Triumph has stock

$4.26

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27

Kit, Shim, 2.50mm

Qty 1

Triumph has stock

$4.26

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27

Kit, Shim, 2.52mm

Qty 1

Triumph has stock

$4.26

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27

Kit, Shim, 2.54mm

Qty 1

Triumph has stock

$4.26

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27

Kit, Shim, 2.56mm

Qty 1

Triumph has stock

$4.26

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27

Kit, Shim, 2.58mm

Qty 1

Triumph has stock

$4.26

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27

Kit, Shim, 2.60mm

Qty 1

Triumph has stock

$4.26

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27

Kit, Shim, 2.62mm

Qty 1

Triumph has stock

$4.26

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27

Kit, Shim, 2.64mm

Qty 1

Triumph has stock

$4.26

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27

Kit, Shim, 2.68mm

Qty 1

Low stock at Triumph

$4.26

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27

Kit, Shim, 2.72mm

Qty 1

Triumph has stock

$4.26

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27

Kit, Shim, 2.76mm

Qty 1

Triumph has stock

$4.26

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27

Kit, Shim, 2.80mm

Qty 1

Triumph has stock

$4.26

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27

Kit, Shim, 2.84mm

Qty 1

Triumph has stock

$4.26

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27

Kit, Shim, 2.88mm

Qty 1

Triumph has stock

$4.26

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27

Kit, Shim, 2.92mm

Qty 1

Triumph has stock

$4.26

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27

Kit, Shim, 2.96mm

Qty 1

Triumph has stock

$4.26

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27

Kit, Shim, 3.00mm

Qty 1

Triumph has stock

$4.26

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27

Kit, Shim, 3.04mm

Qty 1

Triumph has stock

$4.26

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28

Qty 1

Triumph’s Aug 14, 2026 date has passed, we’ll confirm

$34.77

On backorder Ask the parts desk

29

Rocker Arm Decompression

Qty 1

Triumph’s Aug 14, 2026 date has passed, we’ll confirm

$43.01

On backorder Ask the parts desk

30

Qty 3

Triumph has stock

$49.18

Order-in Ask the parts desk

31

Shaft, Rocker Arm

Qty 2

Triumph has stock

$2.52

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32

Qty 2

Triumph has stock

$1.57

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33

Qty 2

Triumph has stock

$0.29

Order-in Ask the parts desk

34

Screw, CSK, Cross, M6 x 1

Qty 3

Triumph has stock

$0.41

Order-in Ask the parts desk

35

Bolt Stud, M8 x 1.25

Qty 2

Triumph has stock

$0.78

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36

Qty 4

Triumph has stock

$0.32

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37

O Ring, Intake Pipe

Qty 1

Not Illustrated. Fits to groove in item 28

Triumph has stock

$3.04

Order-in Ask the parts desk

Diagram and part data from Triumph’s own parts catalogue. Prices and availability are a dated snapshot, not a reservation. Fitment is Triumph’s data — send us the last six of your VIN if you want it checked before you order.

Southern California Motorcycles, 515 W Lambert Rd, Brea, CA 92821 · 714-256-6700

Triumph supply checked Aug 5, 2026 · Brea shelf Aug 18, 2026.