What This Filter Does
This is the primary engine air filter — the element that sits between the intake snorkel and the turbo inlet. It uses high-efficiency flame-retardant cellulose media in a pleated pack, sealed at the flange so all intake air is forced through the media instead of slipping around the edge. Multi-layer construction captures the fine grit that scores cylinder walls and chews turbo wheels.
Restriction is the thing to watch. A loaded element pulls harder on the turbo, hurts fuel economy, and eventually shows up as a soft top end or a restriction indicator popping. Media is rated to hold 99.5% of particles down to 5 microns while still flowing full CFM at wide-open throttle, so a clean element should not cost you boost.
Typical service interval in normal highway work runs around 30,000 miles, but that number moves. Yard trucks, gravel roads, and construction sites load an element far faster. Go by the restriction gauge on the housing, not the odometer, and replace the element rather than banging it out on a tire.
Why These Numbers Cross
P629641 and 03-36867-010 describe the same physical element: same outer diameter, same overall height, same sealing flange geometry, same media pack. The numbers differ because one is a filter manufacturer's catalog number and the other is a supplier line number carried in a different system. Different label, same part on the shelf.
You will also see the string written without dashes in some catalogs, which is why searches for the compact form land on the same element. Dashes and leading zeros get dropped by parts systems all the time. Compare the numbers digit by digit and ignore the punctuation when you are matching against a box in the stockroom.
A cross-reference is a starting point, not a fitment promise. Air filter housings change across model years and engine configurations on the same chassis. Confirm by VIN, or pull the old element and read the number printed on the endcap or the outer wrap before you order.
Checks Before You Order
Measure the old element if the printing is worn off. You want outer diameter, inner diameter, and overall height with the sealing gasket in place. Then check the housing lid clamps — a filter that is close but not exact will let the lid sit proud, and that gap is a straight path for dirt into the turbo.
Inspect the housing while it is open. Wipe the sealing land clean, look for cracks around the inlet tube, and check that the dust ejector valve at the bottom is still soft and not split. A torn ejector valve loads a new element fast and makes people think the filter failed.
P629641 Cross-Reference & Interchange Numbers
These manufacturer and aftermarket numbers commonly cross-reference to P629641. Use them to identify the part — then confirm the exact fit by VIN or the number stamped on your old unit before you order. An interchange is a starting point, not a fitment guarantee.
| Brand / Line | Cross-Reference Numbers |
|---|---|
| Aftermarket | 03-36867-010 |
Frequently asked questions
Is 03-36867-010 the same filter as P629641?
Yes, they reference the same air filter element — same dimensions, same media, same sealing flange. The two numbers come from different cataloging systems. Verify against the number printed on your old element or confirm by VIN before ordering, since housings vary by configuration.
How often should I change this air filter?
Around 30,000 miles is typical in normal highway service. Severe duty — dirt roads, quarries, yard work — cuts that down sharply. The restriction indicator on the intake housing is a better guide than mileage. Change it when the gauge says so.
Can I clean and reuse the element instead of replacing it?
No. This is cellulose media, not oiled cotton. Blowing it out with shop air drives dirt through the pleats and opens pinholes you cannot see. Once it is loaded or the gauge trips, replace it. A pinholed element feeds grit straight to the turbo.
Not sure it fits? We check before you pay.
Run your VIN and we’ll match parts to your exact truck, or call the counter — a person who knows trucks verifies fitment by OEM number before the order ships. No wrong-box returns.
More cross-reference guides
Need the part, not just the reading?
Every part below is a Premium Quality aftermarket Direct Replacement with published OEM cross-reference numbers, a 6+ month warranty and same-business-day shipping from Tacoma, WA. Not sure it fits? Run your VIN — or call and a person who knows trucks will verify fitment before you pay.