About Us

STEMCO has been supplying a diverse line of high performance systems and components to the commercial vehicle industry since 1951. Our mission is to engineer advanced commercial vehicle solutions and create exceptional customer experiences in our passion of Making The Roadways Safer®. STEMCO is consistently recognized as a world-class manufacturer of innovative and exciting commercial vehicle solutions. The values of safety, excellence and respect drive everything that STEMCO and parent company Enpro (NYSE: NPO) do.

Trust, training, support, and focused innovation are just a few of our value drivers at STEMCO. Increasing fleet safety, performance expectations, and ROI are our specialties.

Broad Range of Products

  • Wheel End Components
    • Reliable and durable seals, bearings, hubcaps, axle fasteners and mileage counters
  • Steering Products
    • Long lasting, easy-to-install suspension products including king pin kits, and tie rod assemblies.

Making the Roadways Safer

Our unique, on-site and hands-on training for commercial fleets and repair shops is second-to-none and gives our customers the knowledge they need to reduce operating costs and improve roadway safety. Our technician certification training for wheel-end and steering products gives STEMCO the ability to work in tandem with end users to ensure optimal performance for any fleet.
STEMCO Global Quality Policy

A Global Brand

Along with corporate offices in Longview, Texas, STEMCO operates manufacturing facilities in Texas, Michigan, and China. Our centralized distribution centers in the US, Canada, Australia and China ensure we’re Making the Roadways Safer® in countries all around the world.

STEMCO is a division Enpro Inc. (NYSE: NPO), a leader in sealing products, metal polymer bearings, compressor systems and other engineered products for use in critical applications by industries worldwide.

STEMCO High Performance Products

  • Wheel End oil bath and grease seals
  • Hub Caps
  • Bearings
  • Axle Fasteners
  • Mechanical and electronic mileage counting devices
  • King Pin Kits
  • Adjustable Tie Rods
  • STEMCO APE™ alignment and wheel balancing equipment
  • PPS and PPS+ Long Life Wheel End Systems
  • Wheel end certification training for: wheel end and steering

STEMCO Markets:

  • Truck and trailer original equipment manufacturers
  • Fleets, repair facilities and owner operators
  • Independent distributors and original equipment service facilities
  • Vocational markets (transit bus, school bus, refuse, off-road, construction, etc.)

STEMCO Brands:

  • STEMCO®
  • Grit Guard®
  • Guardian® HP
  • Voyager®
  • Discover XR®
  • Defender™
  • Pro-Torq®
  • Zip-Torq®
  • Auto-Torq®
  • Sentinel®
  • DataTrac® and DataTrac® Pro
  • DataTrac SVT™
  • STEMCO Kaiser™
  • QwikKit®
  • Plus Kit™
  • APE™
  • Econo Kit™
  • QwikeXtract®
  • QWIKTIE®