| Also known as | WW90180A |
| Diagram | Fig. 4 — INLET MANIFOLD · ref 5 |
| Listed in parts books | Not catalogued by year yet |
INSUL BLOCK PHN 24MM .250
Insulating block for an Amal PHN 24mm carburetor, .250 spec.
This is the insulating block for an Amal PHN 24mm carburetor, listed at .250 in the catalog. An insulating block sits between the carburetor and the intake stub or manifold, and its job is to keep engine heat from soaking into the carb body and affecting fuel and float behavior. Beyond the PHN 24mm designation and the .250 spec, our record doesn't say more about it.
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We don't have fitment details on file for this one beyond the carburetor type it's built for, so if you're matching it up to a specific bike or carb setup, give us a call and we'll help confirm before you order.
The part also shows up under the alternate number WW90180A, which is worth knowing if that's what's printed in your parts book or on an old box in the shed.
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