Oxygen Sensors Direct Purchaser Antitrust Settlement

Settlement Structure: Claims Made

Active: Closed

Closed Settlement Statement:

According to court documents, the claim submission deadline has passed. Please contact the claims administrator if you have any questions.

Case Summary:

This settlement is part of a very large case alleging that auto parts manufacturers engaged in collusion and price fixing for various components and parts used in making vehicles. This particular settlement resolves class actions against various Denso and NGK companies (including Denso Corporation and NGK Spark Plug Co., Ltd.) alleging that they engaged in collusion and price-fixing, causing direct purchasers to pay more for oxygen sensors than they otherwise would have.

Generally speaking, oxygen sensors are located before and after the catalytic converter in the exhaust system of a vehicle to measure the amount of oxygen in the exhaust, so that the ratio of air to fuel injected can be adjusted.

Docket Number:

12-MD-02311; also 2:15-cv-03101-SFC-RSW and 2:15-cv-12918-SFC-RSW

Company: Denso Corporation

Filing Deadline: September 30, 2022

Class Period: January 1, 2000 to February 4, 2019

Objection Deadline: August 8, 2022

Exclusion Deadline: August 8, 2022

Final Approval Hearing: September 15, 2022

Proof of Purchase:

If records are available, you must base your purchase information on them. If not, you may base your purchase information on estimates. You may at a later time be required to provide some or all of the documentation to support your claim.


You may be eligible if you are an individual or entity who bought oxygen sensors in the US directly from one or more of the defendants (or their controlled subsidiaries, affiliates, or joint ventures) between January 1, 2000 and February 4, 2019.

The defendants include Denso Corporation; Denso International America, Inc.; Denso Products & Services Americas, Inc.; Hitachi, Ltd.; NGK Spark Plug Co., Ltd.; NGK Spark Plugs (USA) Holding, Inc.; NGK Spark Plugs (USA), Inc.; NTK Technologies, Inc.; Robert Bosch GmbH; Robert Bosch LLC; and their respective subsidiaries, affiliates, and joint ventures.

Typical Settlement Amount:

The net settlement fund will be distributed pro rata to class members, based on their direct purchases of oxygen sensors.

Total Settlement Amount: NGK $600,000; DENSO $100,000

Class Representative Proposed Incentive Fee:


Law Firms:
Freed Kanner London & Millen LLC
Kohn Swift & Graf
Preti Flaherty Beliveau & Pachios LLP

Claim Form: Oxygen Sensors Direct Purchaser Antitrust Settlement Claim Form


Settlement Website: Oxygen Sensors Direct Purchaser Antitrust Settlement Website

Claims Administrator:
Epiq Class Action & Claims Solutions, Inc.

Claims Administrator Contact Information:

Oxygen Sensors Direct Purchaser Antitrust Litigation
P.O. Box 4234
Portland, OR 97208-4234

Tags: Antitrust, Collusion and Price Fixing