Introduction: The ceramic fuel pump plunger tappet (aspect 4088593) improves diesel motor reliability and gas shipping performance, making certain compatibility with Cummins ISC eight.3 and Paccar PX8 types.
As the https://www.shilindiesel.com/blogs-detail/a-closer-look-at-fuel-injection-pump-plunger-tappet-features-and-benefits