What TamerX Diesel Products makes

TamerX Diesel Products is a diesel engine aftermarket parts supplier and manufacturer in Hemingway, South Carolina, focused on fuel and emissions components for heavy-duty and off-road diesel engines. The catalog covers both new and remanufactured parts across four core categories: EGR coolers and valves, turbochargers, diesel fuel injectors, and aftertreatment hardware such as diesel particulate filters (DPF), diesel oxidation catalysts (DOC), and SCR filters. It also carries high-pressure oil pumps, fuel and injection pumps, DEF quality sensors, back-pressure valves, and diesel specialty tools, and it markets a house injector line branded OEX Premium Fuel Injectors.

Fitments span the major diesel engine families in the North American truck market. Product listings name parts for Cummins, Caterpillar, Detroit Diesel, PACCAR, Mercedes MBE, Mack, Volvo, and Navistar International on the heavy-duty side, plus Dodge Ram Cummins, Ford Power Stroke, Chevrolet and GMC, Isuzu, Mitsubishi, John Deere, and Bobcat Doosan for lighter and off-road applications. The company describes a remanufacturing model built on core returns: many parts carry a core-return requirement, and the customer sends back the old unit to complete the exchange. New parts are added to the catalog weekly.

TamerX sells to truck fleets, repair shops, owner-operators, and distributors rather than to vehicle OEMs, which places it in the aftermarket tier of the diesel supply chain rather than in tier-1 or tier-2 OEM programs. The company states that its parts are engineered, manufactured, and tested in the United States, and that each component is tested to meet or exceed OEM specifications. Customs records show that it also imports some components, so the domestic-manufacturing message is a company claim that sits alongside a modest import footprint described below.

Ownership and history

TamerX was started in 2016 and incorporated as a limited liability company in May 2018, per its Better Business Bureau profile, which lists the business as started 1/1/2016 and around ten years in operation. It is independently and privately held. George Stuckey is listed as the owner and has described himself as an independent business owner at the company since January 2016. No parent company, private-equity backing, or outside funding appears on the public record, and an earlier corporate form, Tamerx Diesel Products, Inc., predates the current LLC.

The business operates from a single facility at 3830 Hemingway Highway in Hemingway, a small town in Williamsburg County in South Carolina's coastal plain. In September 2023, TamerX named Daryl Torgerson as its vice president of sales. Torgerson joined from BBB Industries, where he had been director of aftermarket sales, and brought more than forty years in the automotive aftermarket; a trade-press announcement at the time cited strong recent growth at the company. Headcount is small, in the range of roughly ten to fifty people, and grew modestly year over year according to the company's professional-network profile.

Certifications and quality

TamerX has been a Better Business Bureau accredited business since March 2023 and carries an A+ BBB rating. The company does not publish an ISO 9001 or IATF 16949 quality certificate; instead, it describes in-house testing of each component to meet or exceed OEM specifications and points to state-of-the-art remanufacturing processes. Its quality message rests on that testing, on a longer-than-industry-standard replacement warranty, and on a 100% satisfaction guarantee with a 30-day return window for credit or exchange.

Buyers should read the warranty terms carefully because they vary by product. TamerX provides a replacement warranty that covers the part and the cost of shipping the replacement, and explicitly not shop, labor, towing, or related costs; it is a replacement program rather than a money-back guarantee. For parts with a core-return condition, warranty coverage begins once TamerX receives the old core, a structure common in diesel remanufacturing.

Known customers

TamerX sells into the diesel aftermarket, so its buyers are fleets, independent repair shops, owner-operators, and parts distributors rather than named vehicle manufacturers. No specific customer relationships are documented in public filings or company announcements, which is normal for an aftermarket parts seller.

Sourcing evidence

TamerX is a light importer. US customs bill-of-lading records show 20 sea shipments over roughly five years, from February 2021 through July 2026, averaging about 0.72 TEU per month, with an estimated cumulative ocean-freight spend near $37,000 across the shipments that carry cost data. That is a small footprint, and it fits a company that finishes, remanufactures, and assembles parts domestically while importing selected components rather than importing finished goods at volume.

The named foreign suppliers on record:

Five suppliers shown of at least five recorded. The import mix leads with EGR coolers from a single Chinese supplier and steel tube stock from India, with a Swedish crankcase-separation supplier and a one-off turbocharger rounding it out. By HS chapter, the declared codes cluster in automotive parts (8708 for EGR coolers and related components), iron and steel tube (7304, 7312), and machinery (8414 for the turbocharger, 8421 for separation equipment). Because most listed parts are new or remanufactured for domestic sale, this component-in pattern is consistent with the company's stated US manufacturing and assembly, and it also shows real exposure to imported inputs and the tariff environment that surrounds Chinese automotive components, a common prompt for buyers weighing nearshoring of component supply.

Coverage caveats: these are US ocean-freight records only. Air, truck, and rail movements do not appear; some records name freight intermediaries rather than manufacturers; and product categories come from declared manifest codes, which are noisy. Absence of a record is not evidence of absence.

Frequently asked questions

What does TamerX Diesel Products make?

TamerX Diesel Products supplies new and remanufactured diesel engine aftermarket parts, concentrated in fuel and emissions systems. Its main categories are EGR coolers and valves, turbochargers, diesel fuel injectors, and aftertreatment hardware including DPFs, DOCs, and SCR filters, plus high-pressure oil pumps, fuel pumps, and diesel specialty tools. It fits parts for Cummins, Caterpillar, Detroit Diesel, PACCAR, Mercedes, Mack, Volvo, and other diesel engine makes.

Who owns TamerX Diesel Products?

TamerX Diesel Products is an independent, privately held limited liability company. George Stuckey is listed as the owner and has described himself as an independent business owner at the company since 2016. There is no parent company, private-equity backing, or outside funding on the public record.

Where is TamerX Diesel Products located?

TamerX Diesel Products is headquartered at 3830 Hemingway Highway in Hemingway, South Carolina 29554, in Williamsburg County. It operates from a single facility and serves customers across the United States and internationally through its online catalog.

When was TamerX Diesel Products founded?

TamerX was started in 2016 and incorporated as an LLC in May 2018, according to its Better Business Bureau profile, which lists roughly ten years in business. An earlier corporate form, Tamerx Diesel Products, Inc., predates the current LLC.

Who are TamerX Diesel Products' customers?

TamerX sells into the diesel aftermarket, so its customers are truck fleets, independent repair shops, owner-operators, and parts distributors rather than named vehicle manufacturers. No specific customer relationships are documented publicly, which is typical for an aftermarket parts seller.

Does TamerX Diesel Products offer a warranty?

Yes. TamerX provides a replacement warranty that it describes as longer than the industry standard, with terms that vary by product. The warranty covers the replacement part and its shipping, not labor or related costs, and it is a replacement program rather than a money-back guarantee. Many parts carry a core-return requirement, and coverage on those begins once TamerX receives the customer's old core.

Last verified September 28, 2026. Is this your company? Request a correction.