Prechamber screw collar?
 

I recently purchased (and installed) a new gold rack dampener bolt - officially called a Adjustment Bolt at Rear of Injection Pump.

The bolt came with a Prechamber Screw Collar. Its the same gold color. Its round with threads on the outside. Its diameter is much larger than the bolt.

Are the two related for installation?

I didn't see any place obvious on the IP for it. It sounds like an engine part, but why would I get one?

Thanks

JWJ

The two are unrelated. The screw collar fits above the prechambers.

I'll be kind and refrain from commenting on the reason why you got one.................