401(k) · DOL Form 5500 · 2024

Tenneco Automotive Operating Company LLC 401(k) Plan

Data updated 2026-07-24

$1.8B
Total assets: 13,299
Participants: 99th
Percentile by assets: $136,787
Avg per participant

Official DOL plan name: Tenneco 401(k) Investment Plan · Sponsored by Tenneco Automotive Operating Company LLC · Michigan · Manufacturing

$1.8B in assets, 13,299 participants

Tenneco Automotive Operating Company LLC's Tenneco 401(k) Investment Plan reported $1.8B in total assets and 13,299 participants in its 2024 DOL Form 5500 filing, ranking in the 99th percentile by assets among filed plans. Figures are as reported by the plan sponsor to the Department of Labor, not audited or endorsed by PlainRetire.

99th percentile by assets (of 116,472 plans)

Coverage in Michigan

Tenneco 401(k) Investment Plan covers 13,299 participants in Michigan, 21x the typical Michigan plan (state average ~632 per filing). Assets: $1.8B.

$1.8B
total plan assets (2024 EOY): 13,299
covered participants: 99th
percentile by assets (of 116,472 plans): $136,787
avg assets per participant

Tenneco 401(k) Investment Plan reported net income fell from $141M in the plan year 2023 filing to $18M in the plan year 2024 filing.
Tenneco 401(k) Investment Plan reported participants fell from 14,522 in the plan year 2023 filing to 13,299 in the plan year 2024 filing.
Tenneco 401(k) Investment Plan end-of-year assets rose from $1.8B in the plan year 2023 filing to $1.8B in the plan year 2024 filing.

See the national 2023→2024 release diff →

State

Michigan

Industry

Manufacturing

Participants vs Michigan filers

In Michigan, the average filing covers about 632 participants across 3,963 plans. Tenneco 401(k) Investment Plan reports 13,299 participants - 21x that state average ($1.8B EOY assets).

Michigan filing particulars

Total Assets (Beginning of Year)	$1.8B
Net Assets (End of Year)	$1.8B
Net Income	$18M
Employer EIN	741933558
Plan Effective Date	2002-11-25
Filing Status	FILING RECEIVED

Sponsor Plan History (Tenneco Automotive Operating Company LLC)

Total plan assets by year, all Tenneco Automotive Operating Company LLC plans on file

Year	Plans	Participants	Total Assets
2022	2	8,439	$1.7B
2023	1	14,522	$1.8B
2024	1	13,299	$1.8B

Nearby 401(k) Plans in Michigan

Peer 401(k) plans, same state, same plan type, ranked by total assets.

Tenneco 401(k) Investment Plan vs. nearby 401(k) plans in Michigan, assets vs. participants

General Motors Retirement Savings Plan for Salaried Employees in the United States $23.1B · 43,053
Ford Motor Co. Savings and Stock Investment Plan for Salaried Employees $17.3B · 31,790
The Dow Chemical Company Employees' Savings Plan $10.8B · 17,128
The General Motors Personal Savings Plan for Hourly-Rate Employees in the United States $9.6B · 42,513
Ford Motor Co. Tax-Efficient Savings Plan for Hourly Employees $8.3B · 60,497

Compare Tenneco 401(k) Investment Plan side-by-side with 3 peers →

Similar-Sized 401(k) Plans Nationally

401(k) plans in other states closest to Tenneco 401(k) Investment Plan by total assets, not by location.

Carmax, Inc. Retirement Savings Plan (VA) $1.8B · 29,683
Brunswick Rewards Plan (IL) $1.8B · 10,284
Asml US Employees' Savings and Retirement Plan (AZ) $1.8B · 8,351
Saint-Gobain Corporation 401(k) Plan for Salaried Employees (PA) $1.8B · 6,560

Frequently Asked Questions

How did Tenneco 401(k) Investment Plan assets move in 2024? ▼

Tenneco 401(k) Investment Plan held essentially flat - up 1.0% during 2024, from $1.8B to $1.8B. Reported net income was $18M.

How have Tenneco Automotive Operating Company LLC plan assets changed over time? ▼

Across 3 plan years on file (2022-2024), Tenneco Automotive Operating Company LLC's sponsor-wide assets grew 9.5%, from $1.7B to $1.8B.

Where does Tenneco 401(k) Investment Plan rank by assets among Form 5500 filers? ▼

Tenneco 401(k) Investment Plan ranks in the 99th percentile by end-of-year assets among 116,472 plans that reported assets for plan year 2024 (among the largest 1% of all filed plans).

Which 401(k) plans are similar in size to Tenneco 401(k) Investment Plan? ▼

Among 401(k) plans in other states, the closest by assets is Carmax, Inc. Retirement Savings Plan in VA ($1.8B, 29,683 participants).

Next read for Tenneco 401(k) Investment Plan

Filing takeaways

Ways to act on Tenneco 401(k) Investment Plan's numbers.

By total assets, Tenneco 401(k) Investment Plan ranks among the largest 1% of all filed plans. See the largest plans
Compare it side-by-side against 3 similar 401(k) plans in Michigan. Compare plans
Tenneco Automotive Operating Company LLC's sponsor-wide assets have grown 9.5% since 2022 across 3 plan years on file. More Manufacturing plans

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2024.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 741933558.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from U.S. Department of Labor Form 5500 filings (EBSA). See our methodology for details.