| Listed in parts books | Not catalogued by year yet |
EXHAUST HEADER PIPE
Exhaust header pipe, PN 70-3427, for the left side on pre-unit Triumph applications.
This is an exhaust header pipe, part number 70-3427, the section of pipe that runs from the cylinder head down to where the muffler picks up. It's the piece that carries hot gas away from the exhaust port and routes it out along the bottom of the motor.
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Our records on this one are thin - it doesn't show up with a run of catalog listings or figure references we can lean on for more detail. What we can tell you is that it's a Triumph exhaust header pipe, and other catalog listings tie it to the left-hand side of a pre-unit application.
Given how sparse our own documentation is here, give the shop a call before you order so we can confirm it matches what's coming off your bike.
Sorry if we got something wrong here. If you think this information isn't correct, .