Parts for Triumph, BSA & Norton·Worldwide shipping·Call the Shop: (657) 231-9003
Le Hangar 23
Shop/Category/Fig. 11 — ENGINE FITTINGS AND EXHAUST SYSTEM/Silencer mute
Silencer mute
View clickable diagram
Details
Also known asE4155
DiagramFig. 11 — ENGINE FITTINGS AND EXHAUST SYSTEM · ref 34
Subsystemexhaust
Listed in parts books1964–1967

Silencer mute

A silencer mute insert for the exhaust system, listed under part number 70-4155 (also known as E4155).

PN · 70-4155

This is a silencer mute, a small insert that fits into the exhaust silencer to cut down noise output. It shows up in the catalog under the ENGINE FITTINGS AND EXHAUST SYSTEM figure, and the older part number for this same piece is E4155.

Read more

Our records don't tie this one to a specific model, so we can't say which bikes it was fitted to beyond the exhaust system heading it appears under. If you're trying to match it to a particular silencer or exhaust setup, bring in your parts book or give us a call and we'll sort out fitment before you order.

The grounding notes we have on hand for this number don't add anything about material or size, so we're not going to guess. Call the shop if you need more detail before ordering.

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
Clip, silencer to exhaust pipe
PN 70-2271 · Goes with this
BackorderView
Left silencer (muffler)
PN 70-4157 · Goes with this
BackorderView
Bolt (1 1/4 in. U.H.)
PN 82-3430 · 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.