This page lists 12 suspension parts for the 2021 International LT, across 1 part type, covering both the 12.4L L6 DIESEL Turbocharged and the 14.9L L6 DIESEL Turbocharged. Every part shows its brand, manufacturer part number and fitment notes.
On the 2021 International LT, the suspension system controls ride, tire contact and alignment through shocks, struts, control arms, bushings and links. Every listed part is Shock / Strut.
The 2021 International LT was sold with both the 12.4L L6 DIESEL Turbocharged and the 14.9L L6 DIESEL Turbocharged. All 12 parts on this page fit every engine.
3 brands supply suspension parts for the 2021 International LT, led by GABRIEL (4 parts), MONROE (4 parts) and FCS (4 parts). Quality grades include Heavy Duty and Original Ride Quality.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2021 International LT. 3 parts have it, including GABRIEL 83062 (Shock / Strut) and MONROE 65158 (Shock / Strut). Each part number opens a page with every vehicle that part fits.
Shock / Strut
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GABRIEL Popular Fits: all 2021 LT engines | 83062 | 🇺🇸 US 🇨🇦 CA | Cab Shock | View on Amazon |
| MONROE Popular Fits: all 2021 LT engines | 65158 | 🇺🇸 US 🇨🇦 CA | Magnum | View on Amazon |
| MONROE Popular Fits: all 2021 LT engines | 65492 | 🇺🇸 US 🇨🇦 CA | Magnum | View on Amazon |
| GABRIEL Fits: all 2021 LT engines | 83907 | 🇺🇸 US 🇨🇦 CA | Cab Shock | View on Amazon |
| GABRIEL Fits: all 2021 LT engines | 85994 | 🇺🇸 US 🇨🇦 CA | 85000 Series | View on Amazon |
| GABRIEL Fits: all 2021 LT engines | 85642 | 🇺🇸 US 🇨🇦 CA | 85000 Series | View on Amazon |
| MONROE Fits: all 2021 LT engines | 65542 | 🇺🇸 US 🇨🇦 CA | Magnum | View on Amazon |
| MONROE Fits: all 2021 LT engines | 65549 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Magnum | View on Amazon |
Original Ride Quality
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FCS Fits: all 2021 LT engines | F344347 | 🇺🇸 US 🇨🇦 CA | Cabwith Daycab | View on Amazon |
| FCS Fits: all 2021 LT engines | F347504 | 🇺🇸 US 🇨🇦 CA | RearRear Air springs | View on Amazon |
| FCS Fits: all 2021 LT engines | F347346 | 🇺🇸 US 🇨🇦 CA | Rearwith OEM# 6127666C1 | View on Amazon |
| FCS Fits: all 2021 LT engines | F347428 | 🇺🇸 US 🇨🇦 CA | Rearwith 12,000-13,200 lbs Mono Leaf Spring for OE# 4050443C2 | 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 LT, from GABRIEL, MONROE and FCS. GABRIEL 83062 carries the "Popular" badge. All of them fit every engine offered in the 2021 LT.
The Heavy Duty section lists 8 options from GABRIEL and MONROE — rated for severe service. GABRIEL 83062 is listed in this group.
In the Original Ride Quality grade, FCS supplies 4 parts: grouped under the catalog's "Original Ride Quality" designation — the notes column spells out what sets them apart. A representative part number is FCS F344347.
Buying Suspension Parts for a 2021 International LT
On this vehicle, the suspension system controls ride, tire contact and alignment through shocks, struts, control arms, bushings and links.
- You do not need to pick an engine: every suspension part on this page fits both the 12.4L L6 DIESEL Turbocharged and the 14.9L L6 DIESEL Turbocharged.
- 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 .
Frequently Asked Questions
How many suspension parts fit the 2021 International LT?
Our catalog currently lists 12 suspension parts for the 2021 International LT across 1 subcategory 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 LT engines?
No. On this page every suspension part fits both the 12.4L L6 DIESEL Turbocharged and the 14.9L L6 DIESEL Turbocharged. You do not need to pick an engine to choose the right row — use the notes for position and trim.
What are the signs of suspension problems on a 2021 International LT?
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 LT 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 LT?
Every part on this page already fits both the 12.4L L6 DIESEL Turbocharged and the 14.9L L6 DIESEL Turbocharged. 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 LT
Suspension Parts for Other International LT 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.