What The Gasket Does
The EGR valve sits in the hottest, dirtiest part of the emissions loop. It meters exhaust gas back into the intake to drop combustion temperature and cut NOx. The gasket at that flange has to seal raw exhaust under pressure pulses while cycling between ambient and full exhaust temperature every time the truck works.
That duty cycle is what kills it. The material takes a compression set, loses spring-back, and starts weeping at the flange edge. You get a soot trail from the joint, a tick or hiss under load, and often a rough idle as metered gas escapes instead of reaching the intake. Fuel economy drifts down before anything sets a code.
This is a direct replacement gasket for that joint. Pre-cut and trimmed, so the port openings and bolt holes match the flange as-is. No field trimming, no shaving to clear a stud. Material is selected to hold up to exhaust-side operating temperature without shrinking or swelling.
Why These Numbers Cross
You will see this gasket listed two ways. 3683537 is the headline number and the one stamped or printed on most parts packaging you will be handed at a dealer counter. M-3683537 is the Mahle/Clevite catalog number for the same gasket, carrying their prefix on the front of the same base digits.
That shared base number is the tell. When a supplier builds to an existing flange print, they generally keep the original digits and add a house prefix so their catalog sorts correctly. Same bolt-hole pattern, same port size, same nominal thickness. The prefix identifies who packaged it, not a different design.
Other manufacturers' numbers are listed here for identification only. We are not affiliated with, endorsed by, or authorised by any OEM. Use the cross-reference as a starting point, then confirm against the number on the old gasket or the flange casting before you order.
Before You Order
Pull the old gasket and look at it. Note the number of bolt holes, their spacing, the shape of the exhaust port, and whether there is a separate coolant passage cutout. Photograph it flat on the bench next to a tape measure. That picture settles more fitment questions than any catalog lookup.
Cross-reference gets you close, not confirmed. On a 2012-2023 International or Navistar chassis, verify by VIN or by the number on the part you removed. Build variations within the same year range are common on emissions hardware, and a gasket that looks close but sits a few millimeters off will leak at the first heat cycle.
3683537 Cross-Reference & Interchange Numbers
These manufacturer and aftermarket numbers commonly cross-reference to 3683537. 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 |
|---|---|
| Mahle/Clevite | M-3683537 |
Frequently asked questions
How do I know the EGR gasket is leaking and not the valve itself?
Look for a dry soot trail radiating out from the flange joint, not from the valve body. A gasket leak usually shows as a fine black fan around the mating surface and a tick or hiss that changes with load. A failed valve typically sets a position or flow code instead. Clean the area, run the truck, and see where the soot comes back.
Is M-3683537 the same gasket as 3683537?
They share the same base number and cross to the same gasket. M-3683537 is the Mahle/Clevite catalog listing; 3683537 is the base reference number. We list other manufacturers' numbers for identification only. Confirm against the number on your old gasket or by VIN before ordering.
Do I need to replace anything else while the EGR valve is off?
Inspect the flange faces on both sides for pitting, warp, or hard carbon buildup before the new gasket goes on. Scrape the surfaces clean and check them with a straightedge. Also check the condition of the hold-down bolts, since exhaust-side hardware often seizes and stretches. Torque to the sequence and value in the service manual for your chassis.
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.