This page lists 5 automatic transmission parts for the 2021 International RH, across 1 part type, covering the 12.4L L6 DIESEL Turbocharged engine. Every part shows its brand, manufacturer part number and fitment notes.
On the 2021 International RH, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts. Every listed part is a Filter.
Every part on this page is matched to the 12.4L L6 DIESEL Turbocharged — the only engine offered in the 2021 International RH.
The most listed brands for 2021 International RH automatic transmission parts are VARIOUS MFR (2 parts), WIX (1 part) and HASTINGS / BALDWIN (1 part), plus 1 more brand. Quality grades include Standard Replacement and Economy.
1 part on this 2021 International RH page carries a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — WIX 57701 (Filter). Click any part number to see every vehicle that part fits.
Filter
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VARIOUS MFR | PG241 | 🇺🇸 US 🇨🇦 CA | Spin-On | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WIX Popular | 57701 | 🇺🇸 US | Spin-On Filter | View on Amazon |
| HASTINGS / BALDWIN | B2 | 🇺🇸 US 🇨🇦 CA | Spin-On | View on Amazon |
| VARIOUS MFR | PG241EX | 🇺🇸 US 🇨🇦 CA | Extended LifeSpin-On | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MANN | WD8009 | 🇺🇸 US | View on Amazon |
This table covers the replacement filters for this application — the table heading and notes say which circuit. Typical signs include restricted flow — long cranking, weak airflow, or dirty fluid after a short interval. Seat the new filter so it cannot bypass, and use the grade the notes call for.
5 Filter parts for the 2021 International RH come from 4 brands — VARIOUS MFR, WIX, HASTINGS / BALDWIN and 1 other brand. The "Popular" part is WIX 57701.
The Economy section lists 1 option from VARIOUS MFR — the catalog's value-priced group. VARIOUS MFR PG241 is listed in this group.
In the Standard Replacement grade, WIX, HASTINGS / BALDWIN and VARIOUS MFR supply 3 parts: built to original-equipment specification. A representative part number is WIX 57701.
1 further part sits outside the graded sections, with the same engine-level match.
Listed part numbers: WIX 57701, VARIOUS MFR PG241 and HASTINGS / BALDWIN B2, plus the other parts above.
Buying Automatic Transmission Parts for a 2021 International RH
On this vehicle, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts.
- Confirm you have the 12.4L L6 DIESEL Turbocharged engine — every part on this page is matched to it.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the filter and pan gasket with every fluid service, and flush the cooler lines when replacing a failed unit.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Filter .
Frequently Asked Questions
How many automatic transmission parts fit the 2021 International RH?
Our catalog currently lists 5 automatic transmission parts for the 2021 International RH across 1 subcategory and 4 brands, covering the 12.4L L6 DIESEL Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of automatic transmission problems on a 2021 International RH?
Common symptoms include delayed or harsh engagement, slipping under load, fluid that smells burnt, or shuddering at light throttle around 40 mph. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace the filter and pan gasket with every fluid service, and flush the cooler lines when replacing a failed unit.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2021 International RH was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2021 International RH?
Every part on this page is matched to the 12.4L L6 DIESEL Turbocharged engine. Then use exactly the fluid specification in the notes — automatic transmissions are the least forgiving component on the vehicle about fluid choice. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2021 International RH
Automatic Transmission Parts for Other International RH Years
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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.