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Big Bore Performance Kit 1700cc

Triumph Thunderbird 1600 & 1700 · SILENCERS & PERFORMANCE KITS · 27 parts · 4 on the shelf in Brea

Exploded parts diagram — Big Bore Performance Kit 1700cc, Triumph Thunderbird 1600 & 1700

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

Motorcycles this catalogue covers

Thunderbird 1600 & 1700
Choose your year

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

Every part on this diagram

1
A9618043
Big Bore Performance Kit 1700cc
Qty 1
No longer supplied by Triumph
No longer available
Not on our shelf Ask the parts desk
2
T1120522
Piston, 107.1, Grade A/B
Qty 2
Triumph has stock
$260.52
Order-in Ask the parts desk
3
T1120045
Gudgeon Pin
Qty 2
Triumph has stock
$44.90
Order-in Ask the parts desk
4
T1120024
Piston Ring, 1st Compression BB
Qty 2
Triumph has stock
$119.69
Order-in Ask the parts desk
5
T1120025
Piston Ring, 2nd Compression BB
Qty 2
Triumph has stock
$119.69
Order-in Ask the parts desk
6
T1120026
Piston Ring, Oil, Assy, BB
Qty 2
Triumph has stock
$22.85
Order-in Ask the parts desk
7
T1145214
Assy, Camshaft, Ex, Decompressor, BB
Qty 1
Low stock at Triumph
$404.89
Order-in Ask the parts desk
8
T1143117
Camshaft Assy, Inlet, BB
Qty 1
Triumph has stock
$510.48
Order-in Ask the parts desk
9
T1152261
Gasket, Cyl Hd, 107.1mm, 1700
Qty 1
Triumph has stock
$76.14
Order-in Ask the parts desk
10
T1169088
Liner, Cylinder, 107.1, Aluminium
Qty 2
Triumph has stock
$253.49
Order-in Ask the parts desk
11
T1171210
Spring, Clutch, Aftermarket
Qty 5
Triumph’s Aug 21, 2026 date has passed, we’ll confirm
$5.92
On backorder Ask the parts desk
12
A9730518
Cover, Embellisher, Type 2
Qty 1
No longer supplied by Triumph
$27.00
Not on our shelf Ask the parts desk
13
T1230069
Gasket, Sump
Qty 1
Triumph has stock
$26.93
Order-in Ask the parts desk
14
T1260660
Gasket, Clutch Cover
Qty 1
Triumph has stock
$13.92
Order-in Ask the parts desk
15
T1260661
Gasket, Alternator Cover
Qty 1
Triumph has stock
$13.95
Order-in Ask the parts desk
16
T1113102
Bolt, Con Rod
Qty 4
Triumph has stock
$12.51
Order-in Ask the parts desk
17
T1151105
Bolt, M12 x 110, T55
Qty 8
Triumph has stock
$8.43
Order-in Ask the parts desk
18
T3550314
Washer, M12, Hardened
Qty 8
Triumph has stock
$3.32
Order-in Ask the parts desk
19
T3558989
Washer, Sealing, 14.4 x 23 x 3
Qty 1
$1.86
In stock in Brea Ask the parts desk
20
T1218001
Oil Filter, OES
Qty 1
$16.63
In stock in Brea Ask the parts desk
21
T1260246
Seal, Cam Cover
Qty 1
Triumph has stock
$39.24
Order-in Ask the parts desk
22
T1120016
Circlip, Piston
Qty 2
Triumph has stock
$3.08
Order-in Ask the parts desk
23
T1110016
Nut, Con Rod
Qty 4
Triumph has stock
$8.97
Order-in Ask the parts desk
24
T1260309
Seal, Cam Cover, Screw, Twin Lip
Qty 8
Not Illustrated
$5.39
In stock in Brea Ask the parts desk
25
T3350234
Locknut, Flgd, M12 x 1.25
Qty 3
Not Illustrated
Triumph has stock
$5.62
Order-in Ask the parts desk
26
T3350250
Locknut, Flanged, M10
Qty 1
Not Illustrated
$3.85
In stock in Brea Ask the parts desk
27
T2200326
Exhaust Pipe Sealing Ring
Qty 2
Not Illustrated
Low stock at Triumph
$6.87
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.