Solar Turbines Incorporated, San Diego, CA. EIN 95-3621514. Annual reports 2009–2025. Also filed as RDS Manufacturing Inc.
Solar Turbines Incorporated has 2 active retirement plans on file. The largest is the Solar Turbines Incorporated Non-Contributory Retirement Plan, with 2,594 participants and $292 million in assets in 2025. Alight has been its administrator since 2009.
Caterpillar Inc. 100 Ne Adams ST. AB4400 Peoria, IL 61629 (309) 675-1000As filed for 2025
In effect since
July 31, 1981
Plans merged into this one: Progress Rail Locomotive Inc. Pension Plan for Hourly-Rate Legacy Employees (2025); Individual Retirement Plan for Hourly Employees of Progress Rail Locomotive Inc. (2025).
Year by year, 2009 to 2025
Plan year
Participants
Net assets
Recordkeeper
2025
2,594
$292 million
Alight
2024
2,315
$274 million
Alight
2023
2,370
$288 million
Alight
2022
2,407
$277 million
Alight
2021
2,470
$374 million
Alight
2020
2,425
$376 million
Alight
2019
2,467
$335 million
Alight
2018
2,498
$285 million
Alight
2017
2,525
$313 million
Alight
2016
2,526
$207 million
Alight
2015
2,562
$194 million
Alight
2014
2,570
$208 million
Alight
2013
2,540
$201 million
Alight
2012
2,561
$167 million
Alight
2011
2,503
$145 million
Alight
2010
2,356
$152 million
Alight
2009
2,354
$118 million
Alight
Solar Savings and Investment Plan
401(k) with ESOPActive
Active. The plan filed its annual report for the 2025 plan year.
Caterpillar Inc. 100 Ne Adams ST AB4400 Peoria, IL 61629 (309) 675-1000As filed for 2025
In effect since
January 1, 1985
Plans merged into this one: Caterpillar Rail Division Retirement Savings Plan for Collectively Bargained Employees (2025).
Earlier plan names: Solar Turbines Incorporated Savings and Investment Plan.
Year by year, 2009 to 2025
Plan year
Participants
Net assets
Recordkeeper
2025
2,519
$549 million
Alight
2024
2,057
$423 million
Alight
2023
2,047
$375 million
Alight
2022
1,706
$318 million
Alight
2021
1,693
$340 million
not listed
2020
1,754
$314 million
not listed
2019
1,827
$284 million
Alight
2018
1,527
$237 million
Alight
2017
1,482
$264 million
Alight
2016
1,746
$197 million
Alight
2015
1,559
$169 million
Alight
2014
1,651
$192 million
Alight
2013
1,883
$185 million
Alight
2012
1,913
$170 million
Alight
2011
1,881
$160 million
Alight
2010
1,748
$157 million
Alight
2009
1,749
$109 million
Alight
RDS Manufacturing, Inc. 401(k) Retirement Savings Plan
401(k)Merged
Merged. In 2016 its assets moved to the Caterpillar 401(k) Savings Plan, sponsored by Caterpillar Inc. (EIN 37-0602744, plan 035). Accounts moved with them, so that plan is the one to contact.
Earlier plan names: RDS Manufacturing Inc 401(k) Retirement Savings Plan.
Year by year, 2009 to 2016
Plan year
Participants
Net assets
Recordkeeper
2016
0
$0
Principal
2015
119
$5.4 million
Principal
2014
124
$5.3 million
Principal
2013
120
$4.7 million
not listed
2012
111
$3.7 million
not listed
2011
105
$3.3 million
not listed
2010
105
$3.1 million
not listed
2009
115
$2.8 million
not listed
Solar Turbines Incorporated Retirement Plan
Cash balance pensionMerged
Merged. In 2014 its assets moved to the Caterpillar Inc. Retirement Income Plan, sponsored by Caterpillar Inc. (EIN 37-0602744, plan 002). Accounts moved with them, so that plan is the one to contact.
Caterpillar Inc. 100 Ne Adams Street Peoria, IL 61629 (309) 675-1000As filed for 2014
In effect since
July 31, 1981
Year by year, 2009 to 2014
Plan year
Participants
Net assets
Recordkeeper
2014
0
$0
Alight
2013
1,421
$305 million
Alight
2012
1,432
$284 million
Alight
2011
1,444
$239 million
Alight
2010
1,466
$264 million
not listed
2009
1,503
$242 million
not listed
If you had money in one of these plans
Call Alight (alight.com), which runs the Solar Savings and Investment Plan. With your Social Security number and the plan name, it can tell you whether you still have a balance and, if not, where it went.
Or call the plan administrator listed on the plan below ((309) 675-1000). That number was filed for 2025; ask for the benefits or retirement plan office.
If your plan was merged, your account moved with it. Follow the link on the plan to the plan it went into, and contact that one.
Still stuck? The Department of Labor's benefits advisers help for free: askebsa.dol.gov or 1-866-444-3272. Never pay anyone to find your own money.
What these numbers are
They come from the Form 5500 annual reports each plan files with the Department of Labor, as the plan filed them. A plan year is usually a calendar year.
Participants counts everyone in the plan at year end: current employees, former employees who still have a balance or a pension coming, and retirees or beneficiaries being paid.
The recordkeeper is the service provider whose Schedule C entry says it keeps the plan's records. Small plans do not file Schedule C, so some plans show none.
We cannot see anyone's account. Only the plan or its recordkeeper can tell you your balance.