New fuel accumulator for your Mk1 CIS car. This is often an overlooked part, but if your accumulator goes bad you can start having all sorts of problems, most regularly hard starting from hot conditions do to vapor locked lines.
The CIS fuel system is a great set up for naturally aspirated motors, and when everything is up to spec, it is dead reliable and excellent for performance. The problem is when vacuum leaks and faulty fueling parts are not replaced it will quickly have problems, leading to hard starts, inconsistent performance and unreliable running. Keep your early car original, and reliable, with quality new fuel parts. Genuine Bosch part.
Factory part number: 431133441C
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