Free shipping on qualifying gear orders $99+ • Easy returns
Contact 0 $0.00

Cylinder Head & Valves

Triumph Rocket III · Cylinder Head, Valves, Pistons & Liners · 75 parts · 1 on the shelf in Brea

Exploded parts diagram — Cylinder Head & Valves, Triumph Rocket III

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

Motorcycles this catalogue covers

Rocket III
2005–2018

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

Every part on this diagram

1
T1150945
Cylinder Head Assy, 3 Cyl, Black
Qty 1
Triumph has stock
$485.43
Order-in Ask the parts desk
2
T3000101
Dowel, Hollow, 8 x 14
Qty 2
Triumph has stock
$3.61
Order-in Ask the parts desk
3
T3331299
Screw, Pan/HD, Tx, M6 x 40, Slv
Qty 16
Triumph has stock
$3.42
Order-in Ask the parts desk
4
T3450005
Plug, NPSI 3/8 Dryseal
Qty 3
If your engine number is 727921 or lower
Triumph has stock
$6.16
Order-in Ask the parts desk
4
T3450000
Plug, PTF-SAE Short, 3/8-18, Enc
Qty 3
If your engine number is 727922 or higher
Triumph has stock
$6.16
Order-in Ask the parts desk
5
T3100015
Stud, Shld, M8 x 36.5, Slv, Enc
Qty 6
Low stock at Triumph
$2.53
Order-in Ask the parts desk
6
T2108037
Spigot
Qty 1
Low stock at Triumph
$25.25
Order-in Ask the parts desk
7
T1151200
Restrictor, Oil, Dia 1.00
Qty 1
Triumph has stock
$11.46
Order-in Ask the parts desk
8
T1151100
Bolt, Cyl Head, M12, Torx 55
Qty 8
Triumph has stock
$11.37
Order-in Ask the parts desk
9
T3331111
Screw, Pan/Hd, Tx, M6 x 55, Slv
Qty 2
Triumph’s Aug 7, 2026 date has passed, we’ll confirm
$6.24
On backorder Ask the parts desk
10
T3332578
Screw, Pan/HD, Shld, M6 x 65, Slv
Qty 1
Triumph has stock
$5.45
Order-in Ask the parts desk
11
T1260309
Seal, Cam Cover, Screw, Twin Lip
Qty 1
$5.39
In stock in Brea Ask the parts desk
12
T1150189
Gasket, 3 Cyl Head
Qty 1
Triumph has stock
$107.14
Order-in Ask the parts desk
13
T3550146
Washer, 6.4 x 12 x 1, Copper
Qty 1
Triumph has stock
$1.30
Order-in Ask the parts desk
14
T3205062
Bolt, HHF, Lghtd, M6 x 12, Slv
Qty 1
Low stock at Triumph
$3.88
Order-in Ask the parts desk
15
T1130455
Valve, Inlet, 37.9
Qty 6
Triumph has stock
$66.90
Order-in Ask the parts desk
16
T1130465
Valve, Exhaust, 32.3
Qty 6
Triumph has stock
$66.90
Order-in Ask the parts desk
17
T3555019
Washer, 12.5 x 27 x 1
Qty 12
Triumph has stock
$1.30
Order-in Ask the parts desk
18
T1131201
Spring Valve, Symmetrical
Qty 12
Triumph has stock
$36.35
Order-in Ask the parts desk
19
T1130053
Retainer, Spring, Valve
Qty 12
Triumph has stock
$1.30
Order-in Ask the parts desk
20
T1135500
Collet, Valve, 5.5mm
Qty 24
Low stock at Triumph
$1.08
Order-in Ask the parts desk
21
T1130065
Bucket, Tappet
Qty 12
Triumph has stock
$14.71
Order-in Ask the parts desk
22
T3600004
Oil Seal
Qty 12
Triumph has stock
$14.45
Order-in Ask the parts desk
23
T1130200
Shim Tappet, 2.000mm
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130202
Shim Tappet, 2.025mm
Qty -1
Triumph has stock
$7.57
Order-in Ask the parts desk
23
T1130205
Shim, Tappet, 2.050
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130207
Shim Tappet, 2.075mm
Qty -1
Triumph has stock
$7.57
Order-in Ask the parts desk
23
T1130210
Shim, Tappet, 2.100
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130212
Shim Tappet, 2.125mm
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130215
Shim, Tappet, 2.150
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130217
Shim Tappet, 2.175mm
Qty -1
Triumph has stock
$7.57
Order-in Ask the parts desk
23
T1130220
Shim, Tappet, 2.200
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130222
Shim Tappet, 2.225mm
Qty -1
Triumph has stock
$7.57
Order-in Ask the parts desk
23
T1130225
Shim, Tappet, 2.250
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130227
Shim Tappet, 2.275mm
Qty -1
Triumph has stock
$4.76
Order-in Ask the parts desk
23
T1130230
Shim, Tappet, 2.300
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130232
Shim Tappet, 2.325mm
Qty -1
Triumph has stock
$9.27
Order-in Ask the parts desk
23
T1130235
Shim, Tappet, 2.350
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130237
Shim Tappet, 2.375mm
Qty -1
Triumph has stock
$7.57
Order-in Ask the parts desk
23
T1130240
Shim, Tappet, 2.400
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130242
Shim Tappet, 2.425mm
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130245
Shim, Tappet, 2.450
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130247
Shim Tappet, 2.475mm
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130250
Shim, Tappet, 2.500
Qty -1
Low stock at Triumph
$9.43
Order-in Ask the parts desk
23
T1130252
Shim Tappet, 2.525mm
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130255
Shim, Tappet, 2.550
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130257
Shim Tappet, 2.575mm
Qty -1
Triumph has stock
$7.57
Order-in Ask the parts desk
23
T1130260
Shim, Tappet, 2.600
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130262
Shim Tappet, 2.625mm
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130265
Shim, Tappet, 2.650
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130267
Shim Tappet, 2.675mm
Qty -1
Triumph has stock
$7.57
Order-in Ask the parts desk
23
T1130270
Shim, Tappet, 2.700
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130272
Shim Tappet, 2.725mm
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130275
Shim, Tappet, 2.750
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130277
Shim Tappet, 2.775mm
Qty -1
Triumph has stock
$7.57
Order-in Ask the parts desk
23
T1130280
Shim, Tappet, 2.800
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130282
Shim Tappet, 2.825mm
Qty -1
Triumph has stock
$7.57
Order-in Ask the parts desk
23
T1130285
Shim, Tappet, 2.850
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130287
Shim Tappet, 2.875mm
Qty -1
Triumph has stock
$7.57
Order-in Ask the parts desk
23
T1130290
Shim, Tappet, 2.900
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130292
Shim Tappet, 2.925mm
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130295
Shim, Tappet, 2.950
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130297
Shim Tappet, 2.975mm
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130300
Shim Tappet, 3.000mm
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130302
Shim Tappet, 3.025mm
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130305
Shim, Tappet, 3.050
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130307
Shim Tappet, 3.075mm
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130310
Shim, Tappet, 3.100
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130312
Shim Tappet, 3.125mm
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130315
Shim, Tappet, 3.150
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130317
Shim Tappet, 3.175mm
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
23
T1130320
Shim, Tappet, 3.200
Qty -1
Triumph has stock
$9.43
Order-in Ask the parts desk
24
T3990093
Gasket Kit, Full
Qty 1
Triumph has stock
$661.57
Order-in Ask the parts desk
25
T3990094
Gasket Kit, Cyl Head
Qty 1
Triumph has stock
$516.55
Order-in Ask the parts desk
26
T1152151
Cap, Chromed, Cyl HD bolt
Qty 1
Triumph has stock
$2.93
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.