Crankcase & Fittings
Triumph Bonneville · Crankcase, Engine Covers, Lubrication System · 39 parts · 2 on the shelf in Brea
Open this diagram in the interactive viewer → Click any callout on the drawing to jump to the part.
Motorcycles this catalogue covers
Our parts team checks fitment against your motorcycle before any order ships.
Every part on this diagram
1
T1160125
Crankcase Assy, Silver
Qty 1
If your engine number is 372712 or lower
No date from Triumph yet
1
T1161012
Crankcase Assy, Silver
Qty 1
If your engine number is 372713 or higher
No date from Triumph yet
1
T1160126
Crankcase Assy, Black
Qty 1
If your engine number is 372712 or lower
No date from Triumph yet
1
T1160118
Crankcase Assy, Black
Qty 1
If the last 6 of your VIN are 437942 or lower and your engine number is 372713 or higher
No date from Triumph yet
1
T1160143
Crankcase Assy, Black
Qty 1
If the last 6 of your VIN are 437943 or higher
No date from Triumph yet
3
3
3
3
6
6
T3450000
Plug, PTF-SAE Short, 3/8-18, Enc
Qty 4
If your engine number is 731975 or higher
Triumph has stock
12
16
19
19
20
20
21
T1161038
Hose, Breather Drain Extension
Qty 1
If the last 6 of your VIN are 437492 or lower
No date from Triumph yet
21
T1160136
Hose, Breather Drain Extension
Qty 1
If the last 6 of your VIN are 437493 or higher
Triumph has stock
22
23
24
25
26
26
T3051063
Screw, Cap/Hd, M6 x 16, Enc, Raw
Qty 1
If the last 6 of your VIN are 437493 or higher
Triumph has stock
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.