Verified Nov 2026
Electronics & Software
·
Rhinelander, Wisconsin
·
Since 1977
Superior Diesel, Inc. is a value-added distributor of John Deere and Rehlko diesel engines and Funk Drivetrain components for off-highway equipment, headquartered in Rhinelander, Wisconsin. Founded in 1977, the company has an estimated 100-200 employees and an estimated revenue band of $10-50 million. It serves the automotive, electric-vehicle, construction, and industrial equipment sectors, supplying generators, water pumps, marine vessels, and forestry machinery. In February 2026, the company announced the acquisition of Diesel-Bec and New Way Diesel.
Superior Diesel, Inc. at a glance
Revenue
$10-50M
Est. band
Employees
100-200
Founded
1977
Headquarters
Rhinelander, Wisconsin
Import activity
7
Industries
Automotive
Electric Vehicles
Construction
Industrial Equipment
Sourcing and import activity
From US customs bill-of-lading records
US sea imports
7
Named foreign suppliers
5
Top origins
Italy · India · Peru · United Kingdom
Shared foreign counterparties do not establish that these companies buy from Superior Diesel, Inc..
What this tells a buyer
Superior Diesel expanded its Rehlko territory to take on the western region of its value-added distribution network, as announced in June 2026.
The company offers drivetrain, transmission, emissions, and assembly products, along with custom packaged power units and pump drives for industrial and marine applications.
The company is privately held, and its subsidiary Bell Power Systems operates facilities in Seville, Ohio, and Essex, Connecticut.
Source: US customs bill-of-lading records and public filings · Last verified Nov 05, 2026
Overview
Superior Diesel, Inc. is a value-added distributor of John Deere and Rehlko diesel engines and Funk Drivetrain components for off-highway equipment, headquartered in Rhinelander, Wisconsin. Founded in 1977, the company has an estimated 100-200 employees and an estimated revenue band of $10-50 million. It serves the automotive, electric-vehicle, construction, and industrial equipment sectors, supplying generators, water pumps, marine vessels, and forestry machinery. In February 2026, the company announced the acquisition of Diesel-Bec and New Way Diesel.
At a glance
Attribute | Detail |
|---|---|
Founded | 1977 |
Headquarters | Rhinelander, Wisconsin |
Employees | 100-200 |
Revenue | $10-50M (estimated) |
Primary capability | Electronics & Software |
What Superior Diesel, Inc. makes
The company offers drivetrain, transmission, emissions, and assembly products, along with custom packaged power units and pump drives for industrial and marine applications.
Products and capabilities described on the company's own site include Drivetrain, Transmission, Emissions, Assembly (source: sdiesel.com).
Trade and customs footprint
Superior Diesel expanded its Rehlko territory to take on the western region of its value-added distribution network, as announced in June 2026. US customs bill-of-lading records list 7 inbound shipments across 5 foreign suppliers, with top origins including Italy · India · Peru · United Kingdom.
Latest developments
2026-06-01 — Rehlko territory Announcement - Sdiesel.com (sdiesel.com)
2026-06-01 — Superior Diesel recently expanded their territory with Rehlko. Taking on the western territory in our diesel Value Add network is a significant milestone in the partnership between Rehlko and Superior Diesel! | Kyle Newman (linkedin.com)
2026-02-04 — Superior Diesel, Inc. Acquires Diesel-Bec and New Way Diesel - Sdiesel.com (sdiesel.com)
2026-02-04 — Sdiesel.com - News (sdiesel.com)
2026-02-04 — Sdiesel.com - SDI Value Proposition (sdiesel.com)
2026-01-05 — Powering the next generation of community leaders - The Business News (thebusinessnews.com)
Facilities
Superior Diesel, Inc. is headquartered in Rhinelander, Wisconsin. Public sources also reference these locations:
Rhinelander, Wisconsin — sdiesel.com
Company details
The company is privately held, and its subsidiary Bell Power Systems operates facilities in Seville, Ohio, and Essex, Connecticut. Superior Diesel, Inc. was founded in 1977, has an estimated 100-200 employees, and is headquartered in Rhinelander, Wisconsin.
Frequently asked questions
What does Superior Diesel, Inc. make?
Superior Diesel, Inc. is a value-added distributor of John Deere and Rehlko diesel engines and Funk Drivetrain components for off-highway equipment, headquartered in Rhinelander, Wisconsin. Founded in 1977, the company has an estimated 100-200 employees and an estimated revenue band of $10-50 million. It serves the automotive, electric-vehicle, construction, and industrial equipment sectors, supplying generators, water pumps, marine vessels, and forestry machinery. In February 2026, the company announced the acquisition of Diesel-Bec and New Way Diesel.
Where is Superior Diesel, Inc. headquartered?
Superior Diesel, Inc. is headquartered in Rhinelander, Wisconsin (3250 S Fox Ranch Rd, Rhinelander, Wisconsin, 54501).
When was Superior Diesel, Inc. founded?
Superior Diesel, Inc. was founded in 1977.
How big is Superior Diesel, Inc.?
Superior Diesel, Inc. has an estimated 100-200 employees, with revenue in the $10-50M range (estimated).
Does Superior Diesel, Inc. import from overseas suppliers?
US customs bill-of-lading records show 7 inbound shipments for Superior Diesel, Inc., with top origins including Italy · India · Peru · United Kingdom.
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Last verified Nov 2026. Is this your company? Request a correction.
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