Fitment lookup

How to read a fitment table

Every product page in this catalog carries a table with truck make, model, model-year range, and the engine named for that row. A match means we have listed that combination for the part. It does not mean every axle, transmission, or mid-year production change on that truck uses the same stamp. Always compare the number on the old part with the product page before you pay.

Year ranges are inclusive of the start and end years shown. If your truck falls inside the range but the engine is different from the row, treat the row as a near miss and ask. Engines are swapped more often than people expect on used highway tractors, and a Cascadia with an X15 is not the same parts list as a Cascadia with a DD15 even in the same model year.

Interchange numbers on the product page are alternate stamps and common cross references. They help when the old filter or cartridge carries a private-label number. They are not a license to ignore the housing size, thread, or chemistry match.

VIN, engine serial, and what to send us

When the lookup returns nothing useful, or when two parts look equally likely, email the seventeen-character VIN, the engine serial plate if you can reach it, the mileage or engine hours, and a sharp photo of the old part stamp. Include the make, model, and model year in the same message. That package lets the parts desk confirm a row or tell you we do not list a match.

Do not send payment card numbers by email. Do not expect a phone call; we answer by email at support@aonetruckauto.com. If you already have a quote number, put it in the subject line so the reply stays with your order.

Model-year changes that trip people up

Freightliner Cascadia cooling and filter packages changed across early, mid, and late production. A filter that fits a 2012 Cascadia with an ISX may not be the same can as a 2019 Cascadia with an X15, even when both trucks look similar in a yard photo. Read the engine column, not only the model name.

Peterbilt 579 and Kenworth T680 trucks that share PACCAR MX-13 or Cummins X15 power still differ in bracket, hose, and sensor layouts. Use the fitment row for the make you own. Volvo VNL D13 trucks saw several emissions and cooling updates during the model run; Mack Pinnacle and Anthem MP8 rows are shorter in this catalog, so confirm the stamp rather than assuming a Freightliner filter will interchange.

Air springs and shocks are selected by bag number or shock length and mounting, not by paint color. Lighting sockets and lamps follow lamp function and connector family. Brake chambers and slack adjusters follow chamber type, arm length, and spline count. The lookup can narrow the list; the stamp finishes the choice.

Per-make notes for this catalog

Freightliner. Most of our listed rows start here because Cascadia dominates U.S. highway fleets. Columbia and Century Class rows cover older power units still in vocational and regional service. Expect filter and brake coverage to be denser than cab trim.

Peterbilt. 579 aerodynamic tractors, long-hood 389 trucks, and earlier 386/379 units appear in lighting, air spring, and filter tables. Long-hood trucks often keep older dryer and filter families longer than aero models of the same year.

Kenworth. T680 highway, W900 traditional, and T660 earlier aero rows are named. Vocational T880 applications may share some filters with T680 when the engine matches; ask when the model is not listed.

Volvo and Mack. Coverage is thinner than for Freightliner and the PACCAR brands. VNL and Pinnacle/Anthem rows exist where we stock a confirmed part. If your unit is not named, send the VIN rather than forcing a Cascadia row onto a Volvo engine.

Using the lookup form on this page

Choose a make first so the model list fills with names that appear in our tables. Add a model year when you know it. A keyword such as dryer, chamber, or LF9009 further narrows the cards. Empty results mean no published row matches those filters; that is not the same as saying the truck cannot use any part we sell. Email the VIN and we will say yes, no, or not listed.

After you open a product page, read the full fitment table and the shipping note. Heavy kits may ship freight. Liquids ship ground. PayPal on the product page covers the part price for the quantity you select; freight and tax, when due, are confirmed by email before we book a carrier.

After you find a candidate part

Open the product page and read every fitment row, not only the first one. Confirm the engine column, the year range, and any notes about housing or chemistry. Compare the stamped number on the old part with the part number and interchange list. If the old stamp is a private-label number, try that string in search; many crosses are indexed.

Add the part to the cart only after the stamp matches. PayPal will charge the listed USD part price for the quantity you select. Shipping is still quoted by email. If you are ordering several filters for one PM visit, keep them in one cart so freight can be quoted together.

Owner-operators working away from the shop can photograph the filter head, dryer casting, or chamber tag and send it with the VIN. That beats guessing from a model badge on the door. Fleet buyers should include the unit number and the work-order ID in the email subject so replies file cleanly.

Keep a short note of the part numbers that repeatedly fit your units. That personal list, plus this lookup, cuts repeat emails for the same tractor. When a mid-year change lands in your fleet, update the note instead of relying on memory from last season's order.

How to use the fitment lookup

Choose your truck make, then your model and model year. The lookup compares your choices with the fitment rows on every product page and shows the parts whose rows match. You can also add a part number or keyword to narrow the list, which is helpful when you already know you need a brake chamber or a filter.

Fitment rows in this catalog are written at the level of make, model, engine, and model-year range. They are a guide and not a guarantee. Mid-year production changes, replacement engines, and axle or transmission options can all change which part is correct, so always compare the part number on the old part with the product page before you order.

If your truck does not appear, or if you are not sure about the engine, send the VIN and a photo of the old part to support@aonetruckauto.com. We reply by email and tell you whether we list a match.

What the catalog covers today

The table below summarizes the models and model years named in our fitment rows for each truck make. A model that is not in the table may still be compatible with some parts, so ask before you rule it out.

Freightliner

Peterbilt

Kenworth

Volvo

Mack

Cummins (industrial / power gen)