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Engine Covers

Triumph Bonneville Speedmaster · Crankcase, Engine Covers, Lubrication System · 32 parts · 6 on the shelf in Brea

Exploded parts diagram — Engine Covers, Triumph Bonneville Speedmaster

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

Triumph lists this drawing for the Bonneville Speedmaster, VIN AC1201 to CM2411. Triumph builds more than one machine in this book and they do not all take the same parts. Tell us which one you ride →

Motorcycles this catalogue covers

Speedmaster 1200
2020–2026

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

Every part on this diagram

1
T1267018
Clutch Cover Assy, Brushed
Qty 1
$286.96
Available
2
T3600095
Dust Seal
Qty 1
$2.09
Available
3
T3800110
Roller Bearing, HK 1210
Qty 1
$6.16
Available
4
T3800156
Bearing, Needle Roller, 7 x 11 x 9
Qty 1
Low stock at Triumph
$30.77
Limited availability
5
T3800001
Bearing, Needle, 20 x 14 x 12
Qty 1
$7.96
Available
6
T3600088
Seal, Oil, 14 x 22 x 4.5
Qty 1
$5.92
In stock in Brea
7
T1269876
Gasket, Clutch Cover
Qty 1
$15.21
In stock in Brea
8
T1261987
Clutch Cover Badge, Bronze
Qty 1
$51.04
Available
9
T3051055
Screw, Cap/Hd, M5 x 10, Slv, Enc
Qty 4
$2.81
Available
10
T1268666
Plug, M12 x 1.75, Bright
Qty 1
Low stock at Triumph
$30.89
Limited availability
11
T3205072
Bolt, HHF, Lghtd, M6 x 40, Slv
Qty 19
$1.99
Available
12
T3205093
Bolt, HHF, Lghtd, M6 x 50, Slv
Qty 4
$6.24
Available
13
T3205082
Bolt, HHF, Lghtd, M6 x 35, Enc
Qty 2
$2.20
Available
14
T3000005
Dowel, Dia 6 x 16.5
Qty 6
$1.99
Available
15
T1267111
Pad, Sound Suppression Cover
Qty 1
$12.60
Available
16
T1267222
Plate, Sound Suppression Cover
Qty 1
$14.71
Available
17
T3331042
Screw, Pan/Hd, Tx, M6 x 12, Enc
Qty 6
$1.99
In stock in Brea
18
T1267100
Alternator Cover, Brushed
Qty 1
$200.66
Available
19
T1268765
Gasket, Alternator Cover
Qty 1
$12.71
In stock in Brea
20
T1261945
Cover, Bronze
Qty 1
$28.42
Available
21
T3951060
Badge, Flat, Type 1
Qty 1
$12.34
Available
22
T1308765
Bracket, Cable
Qty 1
Low stock at Triumph
$10.30
Limited availability
23
T3330649
Screw, Pan/Hd, Tx, M5 x 12, Slv
Qty 1
$5.25
Available
24
T1260543
Sprocket Cover, Brushed
Qty 1
$112.68
Available
25
T3200148
Bolt, RHHF, M6 x 30, Slv
Qty 4
$4.12
Available
26
T1260568
Washer, Cap, Nylon
Qty 1
$5.62
Available
27
T1261662
Grommet, Sprocket Cover
Qty 4
$3.24
Available
28
T3010901
Flanged Sleeve, 6.4 x 9 x 14.6
Qty 4
$5.94
In stock in Brea · last ones
29
T1260563
Mesh Insert
Qty 1
$40.57
Available
30
T3050341
Screw, Cap/Hd, M5 x 10, Slv
Qty 2
Low stock at Triumph
$3.51
Limited availability
31
T3600222
O ring
Qty 2
$10.69
In stock in Brea
32
T1260574
Cap, Sprocket Cover, Blasted
Qty 1
$5.62
Available

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 Oct 15, 2026.