Bosch CP4 Pump

As of 2026-06-24, the Bosch CP4 Pump is open. You can check whether you qualify with the free 1-minute eligibility self-check below.

Last verified: 2026-06-24

Am I eligible for the Bosch CP4 Pump?

Siskinds LLP has commenced a proposed class action against General Motors LLC and General Motors of Canada Company (“GM”). The action alleges that certain GM diesel vehicles are equipped with a defective Bosch CP4 fuel injection pump. The alleged defects make the CP4 pump prone to sudden and catastr

How do I join the Bosch CP4 Pump?

1. Run the free 1-minute eligibility self-check.
2. If you qualify, register your claim on the platform.
3. Class members typically pay nothing unless money is recovered.

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This is a free eligibility self-check, not a law firm, not legal advice, and not a lawyer referral service. Using it does not create a lawyer-client relationship.