Parts for Triumph, BSA & Norton·Worldwide shipping·Call the Shop: (657) 231-9003
Le Hangar 23
Shop/Category/Fig. 9 — GEARBOX OUTER COVER/Plunger quadrant
Plunger quadrant
View clickable diagram
Details
DiagramFig. 9 — GEARBOX OUTER COVER · ref 9
Subsystemgearbox
Listed in parts books1972–1973

Plunger quadrant

A plunger quadrant from the gearbox selector mechanism, appearing in T150V 5-speed gearbox parts-book figures.

PN · T4374/408
Superseded by 57-4910.

T4374/408 is a plunger quadrant, part of the gear selector mechanism inside the gearbox outer cover. It shows up in the catalog under the GEARBOX OUTER COVER figure as well as the GEARBOX SHAFTS AND GEARS figure for the 5-speed T150V setup. The quadrant works with the plunger to help hold the selector mechanism in position as you move between gears.

Read more

This is an internal gearbox piece, not something you'd see or handle unless you have the outer cover off and are into the selector assembly. The catalog ties it specifically to the 5-speed T150V gearbox arrangement.

We don't have more detail on this one beyond what the parts books show. If you're rebuilding a selector mechanism and need to confirm this is the right quadrant for your box, give us a call and we'll go over it with you before you order.

Not listed anywhere

We've never carried this one. Tell us what you're after and we'll go looking — you'll get a price and photos before you commit to anything.

Sign in to request it
We need somewhere to send the price and the photographs.
Pin your bike to check this part fits.

Sorry if we got something wrong here. If you think this information isn't correct, .

Related parts
Gearchange quadrant plunger
PN 57-4403 · Goes with this
BackorderView
SPRING,GEAR QUADRANT PLUNGER
PN 57-0405 · Goes with this
BackorderView
Quadrant return spring
PN 57-0404 · Goes with this
BackorderView
Any questions about this part?

Ed is at the counter. Tell him what you're working on or what doesn't fit, and he'll take it from there with this part already on the bench.