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

Ignition Switch/Seat Lock

If the last 6 of your VIN are 56491 or lower

Triumph Thunderbird & Thunderbird Sport · Electrical System · 11 parts · 2 on the shelf in Brea

Exploded parts diagram — Ignition Switch/Seat Lock, Triumph Thunderbird & Thunderbird Sport

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

Motorcycles this catalogue covers

Thunderbird & Thunderbird Sport
1999

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

Every part on this diagram

1
T2500435
Lock set
Qty 1
Includes 2 keys
No longer supplied by Triumph
No longer available
Not on our shelf Ask the parts desk
2
T3330327
Bolt, Shear, M6 x 22, Enc
Qty 2
$4.85
In stock in Brea Ask the parts desk
3
3550018-T0301
Spring Washer
Qty 2
No longer supplied by Triumph
No longer available
Not on our shelf Ask the parts desk
4
T3330184
Screw, C'sunk Tx, M6 x 25, Slv
Qty 2
Triumph has stock
$1.18
Order-in Ask the parts desk
5
T3331041
Screw, Pan/Hd, Tx, M6 x 25, Enc
Qty 2
If the last 6 of your VIN are 23071 or lower
$0.98
In stock in Brea Ask the parts desk
5
3330415-T0301
Screw
Qty 2
If the last 6 of your VIN are 23072 or higher
Triumph has stock
$1.05
Order-in Ask the parts desk
6
T2505000
Actuating lever
Qty 1
No longer supplied by Triumph
No longer available
Not on our shelf Ask the parts desk
7
2500038-T0301
Switch/Lock Assy Ign
Qty 1
Includes 2 keys
Triumph has stock
$218.28
Order-in Ask the parts desk
8
2500034-T0301
Key, Uncut
Qty 1
Supplied as single - Key blank to be cut by dealer
Low stock at Triumph
$20.24
Order-in Ask the parts desk
8
T2500076
Key, Cut
Qty 1
Supplied as pair - Customer must supply key number with order
No date from Triumph yet
$73.17
On backorder Ask the parts desk
9
T2500101
Seat lock
Qty 1
Includes 2 keys
No longer supplied by Triumph
$73.78
Not on our shelf 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.