What The 83203 Replaces
The 83203 is a hydraulic damper built for heavy-duty truck suspension service, sold by World Truck Parts as a direct replacement unit. It controls axle movement between the frame and the suspension, keeping the tire loaded against the road instead of skipping. Without working damping, every road input turns into repeated axle hop that the springs alone cannot settle.
Techs usually arrive at this number one of two ways: they pull the old shock and read the stamping, or they get F03461S235 off a parts list and start searching. Either path lands on the same physical part. The 83203 is the aftermarket line number; F03461S235 is the cross-reference used for identification only.
Before ordering, measure. Extended length, collapsed length, and both mounting eye or stud types decide whether the unit hangs correctly. A shock that bottoms before the suspension does will tear its own mount out. One that tops out early does nothing on rebound. Confirm by VIN or by the number on the part you removed.
Why These Numbers Cross
83203 and F03461S235 describe the same shock envelope: same mounting configuration, same stroke, same damping duty for heavy-duty truck suspension. Cross-reference tables exist because the same physical damper gets catalogued under different systems — one number from the original supply chain, one from the aftermarket line. The hardware is what matters, not the label on the box.
F03461S235 is listed here strictly so you can identify the part. PartStop is not affiliated with, endorsed by, or authorised by any original equipment manufacturer, and no brand name on a cross list implies a relationship. The number is a search key, nothing more.
Treat the cross as a starting point, not a guarantee. Trucks get respec'd. Suspensions get swapped at rebuild. A tractor wearing an axle from another spec may need a different length than the build sheet says. Verify against the removed part or a VIN-based lookup before the wrenches come out.
How Shocks Fail
Look for oil film on the body first. A wet shock has lost seal integrity and is on borrowed time. Then grab the unit and check for slop at the mounts — collapsed bushings let the shock rattle instead of damp, and the noise gets blamed on everything but the shock. Bent shafts and dented bodies are immediate replacements.
Symptoms on the road: cupped or scalloped tire wear, floaty ride over rolling pavement, a rear end that keeps bouncing after a dip, and driver complaints about cab shake at highway speed. Cupping is the expensive one — worn dampers can scrap a set of tires long before the shocks get inspected.
83203 Cross-Reference & Interchange Numbers
These manufacturer and aftermarket numbers commonly cross-reference to 83203. 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 |
|---|---|
| OE/Cross-Ref | F03461S235 |
Frequently asked questions
Is 83203 the same shock as F03461S235?
They cross to the same part. 83203 is the aftermarket line number and F03461S235 is the cross-reference number used for identification. Both describe a heavy-duty truck shock with the same mounting setup and stroke. Confirm against the number on your old unit before ordering.
Do I have to replace shocks in pairs?
Standard shop practice is to replace them per axle end, both sides. A new shock on one side and a worn one on the other gives you uneven damping and can make the truck track oddly under braking. If one is leaking, the other has the same miles on it.
How do I confirm this fits my truck?
Cross-reference alone does not confirm fitment. Measure extended and collapsed length on the old shock and check both mount types — eye, stud, or pin. Then verify by VIN or by the part number stamped on the unit you pulled. Suspensions get changed at rebuild, so build sheets are not always current.
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
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