15 Suspension parts are listed for the 2021 International HX, in 2 part types, covering both the 12.4L L6 DIESEL Turbocharged and the 14.9L L6 DIESEL Turbocharged. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2021 International HX, the suspension system controls ride, tire contact and alignment through shocks, struts, control arms, bushings and links. All 15 listed parts are Shock / Strut (12 parts) and Leaf Spring (3 parts).
The 2021 International HX was sold with both the 12.4L L6 DIESEL Turbocharged and the 14.9L L6 DIESEL Turbocharged. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
3 brands supply suspension parts for the 2021 International HX, led by MONROE (7 parts), GABRIEL (5 parts) and HUSKY SPRING (3 parts). Quality grades include Daily Driver and Heavy Duty.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2021 International HX. 3 parts have it, including GABRIEL 85976 (Shock / Strut) and GABRIEL 85072 (Shock / Strut). Each part number opens a page with every vehicle that part fits.
Leaf Spring
Daily Driver
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HUSKY SPRING Fits: 12.4L L6 DIESEL Turbocharged | 55956 | 🇺🇸 US 🇨🇦 CA | Free Arch (inches): 3.625Front End Attachment Type (A): with Threaded Pin | View on Amazon |
| HUSKY SPRING Fits: 12.4L L6 DIESEL Turbocharged | 55966 | 🇺🇸 US 🇨🇦 CA | Front End Attachment Type (A): with Threaded PinLeaf Thicknesses From Top Down (inches or MM): 9 Leaves@558 | View on Amazon |
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HUSKY SPRING Fits: 12.4L L6 DIESEL Turbocharged | 55966HD | 🇺🇸 US 🇨🇦 CA | Heavy Duty | View on Amazon |
This table covers the leaf springs that locate and support the axle.
HUSKY SPRING supplies the 3 Leaf Spring parts for the 2021 International HX.
The Daily Driver section lists 2 options from HUSKY SPRING — grouped for everyday commuting duty. HUSKY SPRING 55956 is listed in this group.
The Heavy Duty section lists 1 option from HUSKY SPRING — rated for severe service. HUSKY SPRING 55966HD is listed in this group.
Listed part numbers: HUSKY SPRING 55956, HUSKY SPRING 55966 and HUSKY SPRING 55966HD.
Shock / Strut
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GABRIEL Popular Fits: 12.4L L6 DIESEL Turbocharged | 85976 | 🇺🇸 US 🇨🇦 CA | 85000 Series | View on Amazon |
| GABRIEL Popular Fits: 12.4L L6 DIESEL Turbocharged | 85072 | 🇺🇸 US 🇨🇦 CA | 85000 Series | View on Amazon |
| MONROE Popular Fits: 12.4L L6 DIESEL Turbocharged | 65484 | 🇺🇸 US 🇨🇦 CA | MagnumGas- 65 | View on Amazon |
| GABRIEL Fits: 12.4L L6 DIESEL Turbocharged | 83143 | 🇺🇸 US 🇨🇦 CA | 83000 Series | View on Amazon |
| GABRIEL Fits: 12.4L L6 DIESEL Turbocharged | 83142 | 🇺🇸 US 🇨🇦 CA | 83000 Series | View on Amazon |
| GABRIEL Fits: 12.4L L6 DIESEL Turbocharged | 85965 | 🇺🇸 US 🇨🇦 CA | 85000 Series | View on Amazon |
| MONROE Fits: 12.4L L6 DIESEL Turbocharged | 66465 | 🇺🇸 US 🇨🇦 CA | Magnum | View on Amazon |
| MONROE Fits: 12.4L L6 DIESEL Turbocharged | 65536 | 🇺🇸 US 🇨🇦 CA | Magnum | View on Amazon |
| MONROE Fits: 12.4L L6 DIESEL Turbocharged | 65507 | 🇺🇸 US 🇨🇦 CA | Magnum | View on Amazon |
| MONROE Fits: 12.4L L6 DIESEL Turbocharged | 65538 | 🇺🇸 US 🇨🇦 CA | Magnum | View on Amazon |
| MONROE Fits: 12.4L L6 DIESEL Turbocharged | 65508 | 🇺🇸 US 🇨🇦 CA | Magnum | View on Amazon |
| MONROE Fits: 12.4L L6 DIESEL Turbocharged | 66464 | 🇺🇸 US 🇨🇦 CA | Magnum | View on Amazon |
This table covers the shocks and struts that damp wheel motion. Typical signs include a nose that keeps bouncing, cupped tires, or fluid weeping down the body. Replace shocks or struts in axle pairs and renew the mounts if they are torn or collapsed.
12 Shock / Strut parts are listed for the 2021 International HX, from MONROE and GABRIEL. GABRIEL 85976 carries the "Popular" badge.
Buying Suspension Parts for a 2021 International HX
On this vehicle, the suspension system controls ride, tire contact and alignment through shocks, struts, control arms, bushings and links.
- Match the engine first. Every suspension part here is engine-specific; each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace shocks and struts in axle pairs, renew the sway-bar links with the struts, and get an alignment after any control-arm or tie-rod work.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Shock / Strut and Leaf Spring .
Frequently Asked Questions
How many suspension parts fit the 2021 International HX?
Our catalog currently lists 15 suspension parts for the 2021 International HX across 2 subcategories and 3 brands, covering both the 12.4L L6 DIESEL Turbocharged and the 14.9L L6 DIESEL Turbocharged. Each part is matched to the engine(s) it fits.
Do suspension parts differ between 2021 International HX engines?
Yes. Every suspension part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of suspension problems on a 2021 International HX?
Common symptoms include clunks over speed bumps, wandering steering, cupped tire wear, or a nose that keeps bouncing after a dip. 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 shocks and struts in axle pairs, renew the sway-bar links with the struts, and get an alignment after any control-arm or tie-rod work.
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 HX 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 HX?
First match the engine — each row shows which engine(s) the part fits. Then worn bushings often mimic bad shocks — inspect before buying, and remember loaded vs unloaded strut assemblies differ in labor by hours. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2021 International HX
Suspension Parts for Other International HX Years
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