All Kenworth — Aftermarket Parts

What "OEM-Grade" Actually Means

OEM-grade isn't a marketing word. It means a part is engineered to the same dimensional and performance specification as the one the truck rolled off the factory line with. Same micron rating. Same flow geometry. Same housing thread. Same gasket compound. The aftermarket world is full of filters that pass the visual test and fail the spec sheet, and a fleet manager who buys the wrong one finds out at the worst possible moment, on the side of a highway, three hundred miles from the yard. Steinberg sources from manufacturers that publish full spec documentation, and we reject lots that drift outside tolerance. The cross-reference number is the easy part. The spec match is the hard part.

Where These Parts Ship From

The Steinberg warehouse sits in Hodgkins, Illinois, twenty miles southwest of downtown Chicago, ten minutes from I-294, fifteen from I-55, less than an hour from O'Hare and the Union Pacific intermodal terminal. Orders placed before 2:00 PM Central Time ship the same business day via UPS, FedEx, or USPS, depending on weight and destination. Net-30 terms are available to qualified fleet accounts. For pricing on bulk orders or recurring fleet schedules, contact us directly.