What Precision International makes

Precision International is an aftermarket manufacturer and supplier of automatic transmission repair kits. The company says it offers more than 3,000 different kits and sources nearly 10,000 parts and components, covering both import and domestic automatic transmissions for professional rebuilders, distributors, and vehicle owners. Its catalog is organized around named transmission families, including ZF 8-speed units (8HP51, 8HP70), Nissan/Jatco JF011E CVTs, Aisin TF-series units, and General Motors, Honda, Acura, BMW, MINI, and Toyota applications. Kit types run from complete overhaul kits and master kits to gasket sets, seal kits, and the company's "Problem Solver" kits that target a unit's known failure points.

The product line is gasket- and seal-intensive, which its sourcing confirms: multi-layered composite gaskets, rubber and metal oil seals, O-rings, and transmission filters. Alongside the kits, Precision publishes technical support material for the trade, including parts catalogs, transfer case catalogs, a foreign kit guide, valve body and gasket identifier wall charts, vehicle application tables, and production-change bulletins that document coverage updates as transmissions reach end of production. The company positions itself on research and development, testing components and extending coverage windows on existing kits rather than only adding new part numbers.

Ownership and history

Dennis Marshall founded Precision International in 1975, starting with ten basic transmission kits of about twenty parts each. The company remains family-owned and independent, and reports growing to a line of more than 3,000 kits over five decades. It operates from a single 80,000-square-foot facility at 14 Todd Court Extension in Yaphank, New York, on Long Island, where it consolidates research and development, assembly, quality control, and shipping. The company reports a workforce of more than 150 people and a 99% on-time delivery rate.

Certifications and quality

Precision International states that it is an ISO 9001-certified company and that its quality control procedures are applied from the executive offices through the assembly lines and shipping department. The company describes its business creed as meeting or exceeding customer expectations and ties its quality program to a 99% on-time delivery rate. The ISO 9001 registration is presented as a company claim on its own site without a public certificate date, so the certification currency is reported here as claimed rather than dated. Precision also runs its own component testing and validation as part of the research and development function behind its coverage updates.

Known customers

Precision International sells primarily through the transmission-rebuilder and parts-distributor channel, so most end customers are not named. One relationship is documented through a recognized award program.

The company states it has been named a General Motors Supplier of the Year for five consecutive years. Beyond that program, Precision serves professional transmission rebuilders, automotive aftermarket distributors, and OEM channels rather than a public roster of named accounts.

Sourcing evidence

Precision International's US import record reads exactly like a transmission-kit assembler's should. US customs bills of lading show 1,214 sea shipments since January 2015, made up of gaskets, oil seals, O-rings, and transmission filters, the small sealing components that go into overhaul kits assembled in Yaphank. This is a tooling-and-components-in, finished-kits-out pattern, the signature of a domestic manufacturer rather than a reseller of finished units. The most recent shipment on record is September 23, 2026, and the cadence is remarkably steady, close to 100 shipments in every calendar month of the year across the trailing period.

Seven shown; the company also imports under additional names and addresses on the same record. By declared code, the mix leads with rubber seals and gaskets used in automotive goods (HS 4016.93), metal-and-material layered gaskets (HS 8484.10), and other plastic components (HS 3926.90). Origin countries are led by Taiwan, followed by India and China, a supply base concentrated in established seal and gasket manufacturers. Customs-derived estimates put cumulative ocean shipping spend near $197,000, with cost data covering only about 3% of shipments, so that figure is an order-of-magnitude indicator rather than an audited number.

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 Precision International make?

Precision International manufactures and supplies aftermarket automatic transmission repair kits. It offers more than 3,000 different kits and sources nearly 10,000 parts and components, covering import and domestic transmissions including ZF 8-speed, Jatco CVT, Aisin, GM, Honda, BMW, and Toyota applications, along with gasket sets, seal kits, and technical reference charts.

Who owns Precision International?

Precision International is a family-owned, independent company founded by Dennis Marshall in 1975. It is not part of a larger corporate group and has operated for about five decades from Long Island, New York.

Where is Precision International located?

Precision International operates from an 80,000-square-foot facility at 14 Todd Court Extension in Yaphank, New York, on Long Island. All research and development, assembly, quality control, and shipping run from that single site.

Who are Precision International's customers?

Precision International sells mainly to professional transmission rebuilders and automotive aftermarket distributors, so most customers are not publicly named. The company states it has been named a General Motors Supplier of the Year for five consecutive years, a documented recognition from a major OEM.

How many employees does Precision International have?

Precision International reports a workforce of more than 150 people at its Yaphank, New York facility. Databases that model headcount from online profiles show lower figures and tend to undercount manufacturing and assembly workforces.

What certifications does Precision International hold?

Precision International states that it is an ISO 9001-certified company and applies its quality procedures from the executive offices through assembly and shipping, supporting a reported 99% on-time delivery rate. The certification is presented as a company claim without a public certificate date.

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