Ford F-250 and F-350 Super Duty Motor Mount Symptoms and Replacement Cost

The Short Answer

Replacing motor mounts on a Ford F-250 Super Duty costs $970–$1,325 on average — parts and labor combined — and the job gets more involved if you're running the 6.7L Power Stroke diesel.

Those numbers make more sense once you understand what's actually under the hood of a Super Duty — a heavy, high-torque powertrain that stresses mounts harder than almost any other truck in its class.

Ford F-250 Super Duty mount layout: what's actually under the hood

The F-250 Super Duty runs multiple mount types depending on engine and drivetrain configuration. Here's what the Westar catalog covers for this platform and what each position does.

On the Super Duty, the engine mounts carry a heavier load than on most trucks because of the sheer weight of the 6.7L diesel and the torque it produces at low RPM. One mount failing while others are marginal is a common scenario on high-mileage work trucks.

Which Ford F-250 Super Duty years and engines fail most

Westar's catalog runs from 1999 to 2022 for the F-250 Super Duty, with 52 distinct mount SKUs across that span. The deepest coverage — the most individual mount part numbers — falls in the 1999–2004 range, which maps directly to the first-generation Super Duty body style and its engine variants (the 7.3L Power Stroke diesel, 5.4L Triton V8, and 6.8L Triton V10).

From a real-world failure standpoint:

• 1999–2004 trucks with the 7.3L Power Stroke are the most commonly reported mount-failure candidates. These trucks are 20+ years old now, heavily worked, and the 7.3L's torque characteristics put real stress on rubber over time.
• 2005–2010 trucks with the 6.4L Power Stroke are worth inspecting carefully, especially if the engine has ever overheated — extreme heat degrades mount rubber faster than anything else.
• 2011–2019 trucks with the 6.7L Power Stroke tend to hold up better when maintained, but high-mileage examples that tow regularly show mount wear earlier than lighter-use trucks.
• 6.2L gas V8 trucks across the same era generally see slower mount wear than their diesel counterparts, but that's not a pass — a 150,000-mile gas Super Duty still needs an inspection.

I'd be cautious about anyone claiming specific TSB numbers around F-250 mount failures without a citation — that's an area where invented details circulate online. What I'm confident about: first-gen trucks (1999–2004) and hard-working diesel examples show up disproportionately in mount-related service conversations.

Symptoms your F-250 Super Duty motor mount is failing

These aren't generic truck symptoms. Here's specifically how bad mounts feel on this platform.

1. A hard thud through the cab floor and steering column when you put it in drive or reverse. This is the most F-250-specific symptom — the powertrain is heavy enough that a failed mount produces an unmistakable jolt rather than a subtle clunk.

2. The whole cab shakes at idle. When the 6.7L diesel's low-RPM vibration stops being absorbed by the mounts, it transmits directly into the frame and cab. You'll feel it in your seat, the steering wheel, and the center console. It can be dramatic on a diesel that's already lumpy at idle.

3. A clunk or bang when the transmission shifts under load. If you're towing or hauling and feel a mechanical bang during upshifts, that's often a mount allowing more drivetrain movement than it should. It's also hard on the transmission over time.

4. The engine visibly rocks sideways when you blip the throttle in park. Stand outside and have someone rev it — on a Super Duty with a failed mount, you can sometimes see the engine move. That's not normal.

5. Unusual stress on the exhaust, coolant hoses, or intercooler piping. When the engine moves more than designed, it tugs on everything connected to it. Cracked hoses or exhaust flex points can be a secondary sign that a mount has been gone for a while.

Before you blame the mounts — check these recalls first

NHTSA recalls 22S09 and 22S74 cover driveshaft issues that produce vibration symptoms nearly identical to bad motor mounts. Before spending over $1,000 on a mount job, look up your VIN through NHTSA's recall database. If either recall applies to your truck, Ford handles the repair at no cost. That's not a minor footnote — it's potentially the entire repair bill.

Why F-250 Super Duty mount replacement costs more than average

Engine weight and torque. The 6.7L Power Stroke is a heavy, high-torque diesel. Properly supporting the engine to swap mounts requires the right equipment — improvising this creates safety risk and can damage other components.

Access difficulty on the diesel. On the 6.7L, getting clean access to the mounts often means removing surrounding components first. That's extra labor time that doesn't exist on a simpler gas application.

You need the right mount for your exact configuration. Mount part numbers on the Super Duty are specific to both engine and side. A mount built for the 6.2L gas V8 won't correctly fit a 6.7L diesel application, and left/right are not interchangeable. Getting this wrong means a return trip, more downtime, and sometimes a second labor charge.

If one is gone, the others are probably close. Replacing all mounts while the labor is already open is almost always the smarter move. You're paying for access either way.

6.2L gas vs. 6.7L Power Stroke: which costs more to fix?

The 6.7L Power Stroke diesel costs more to work on, almost every time. The engine is heavier, access is tighter, and the process is more involved. Most diesel F-250 owners take this job to a shop.

The 6.2L gas V8 is more DIY-friendly by comparison — still not a quick driveway job, but within reach for someone with solid mechanical ability, the right jack stands, and an engine support bar.

OEM vs. aftermarket motor mounts for the Super Duty

OEM Motorcraft mounts are a sensible default for a working truck that tows regularly. For quality aftermarket, the key is buying from a brand that specializes in mounts rather than one that sells them as a sideline product.

Westar manufactures exclusively engine and transmission mounts — it's their entire catalog. For the F-250 Super Duty alone, they cover 1999–2022 with 52 distinct SKUs across engine mounts, automatic transmission mounts, and complete kits. That specialist depth matters on a platform with as many engine and configuration variants as the Super Duty. For the exact kit that fits your engine, year, and side, use the part finder below — mount applications on this truck vary enough that verifying fit before ordering is non-negotiable.

How to bring the cost down

• Buy a complete kit. Bundled kits are generally more cost-effective than individual mounts and eliminate the risk of missing a position.
• Get multiple labor quotes. Dealer rates run highest. A reputable independent shop with diesel experience can often do the same work at a lower hourly rate.
• DIY the gas engine if you're capable. The 6.2L is a realistic DIY project for experienced home mechanics. The 6.7L diesel is a different conversation.
• Act before the mount fully collapses. A worn mount is cheaper to swap than one that's collapsed and started damaging surrounding hoses, wiring, and exhaust components.

Bottom line

Motor mount replacement on an F-250 Super Duty is a real expense — $970 to over $1,300 depending on the truck and shop, and higher on the F-350. The symptoms are hard to miss once they show up, and ignoring them on a truck you use for hauling or towing tends to make things worse and more expensive. Check recalls 22S09 and 22S74 on your VIN before you schedule anything. If mounts are confirmed as the issue, a complete kit from a specialist brand gets all worn positions out in one shot.

My honest take: on a truck this capable, this is not the place to shop for the cheapest possible part. A failed mount mid-haul with a loaded trailer is the kind of situation that costs far more than the repair you postponed.

Sources

• RepairPal: Ford F-250 Super Duty motor mount replacement cost data
• NHTSA recall database: recalls 22S09 and 22S74
• Westar catalog: F-250 Super Duty mount coverage, 1999–2022