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Duralast Severe Duty Disc Brake Rotor 42251SD

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Duralast1092972
Part # 42251SD
SKU # 1092972
Total price is: 155 dollars and 99 cents.

Part #42251SD
SKU #1092972
Weight29.8lbs
Solid Or Vented Type RotorVented
Directional or Non-Directional Brake SurfaceNon-Directional
ABS Tone Ring IncludedNo
Grade TypeStandard Replacement
Mounting Bolt Hole Circle Diameter135.0mm
Discard Thickness32.0mm
MaterialIron Alloy
Stud/Lug Hole Quantity6
Mounting Bolt Hole Quantity6
Overall Height49.5mm
Center Hole Diameter90.0mm
Nominal Thickness34.0mm
Inside Diameter200.0mm
Surface TypeSmooth
Rust Resistant CoatingYes
Outside Diameter350.0mm

Duralast Severe Duty Brake Rotors are built to provide consistent stopping power for heavy vehicles and payloads. The advanced carbon formulation delivers tailored heat resistance for heavy stop-and-go commercial and fleet vehicles. For the best performance, pair with Duralast Severe Duty Brake Pads.
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    Advanced carbon formulation with specialized coating improves heat resistance
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    OE-equivalent vane and weight specs cool rotors and pads to reduce brake fade
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    Built for heavy vehicles and payloads making repeated stops
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    Pair with Duralast Severe Duty Brake Pads for best performance
Duralast Severe Duty TM Specially engineered for heavy trucks and hauling
Duralast rotors
Duralast Gold rotors
Duralast Severe Duty rotors
Original equipment (OE) comparison
Meets OE
Exceeds OE
Truck and Towing Specific
Warranty
2-year, full-replacement
3-year, full-replacement
90 day warranty
Stopping power*
OE-matched performance
OE-matched performance
Engineered for heavy trucks and hauling
Corrosion resistance
OE-matched
Full Z-Clad Zinc Coating
Fully coated for rust protection
Noise-free guarantee*
Yes
Yes
No
Price range
$
$$
$$
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*When paired with equivalent Duralast Pads.

KNOWLEDGE IS POWER

Car brakes work by leveraging three main principles of physics: leverage, hydraulics, and friction.
When changing your brake pads, be sure to inspect and replace your rotors and hardware if necessary to ensure optimal braking performance.
If your brakes squeal until you press the pedal down, it may be your wear indicator telling you to change your pads.

TRUSTWORTHY ADVICE

BRAKE LIGHT ON?
Find out why.
READ NOW BRAKE LIGHT ON?
DO YOU NEED NEW BRAKES?
Learn to recognize the symptoms of bad brakes.
READ NOW DO YOU NEED NEW BRAKES?
SAFER STOPS START HERE
Learn how to do the complete job.
READ NOW SAFER STOPS START HERE
Customer Reviews
5 Reviews
75% of reviewers recommend this product.
3 recommendations
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5 Reviews

  • Rotors

    Astrid
    3 months ago
    Verified Purchase

    Works well. AutoZone never fails.

    Helpful?

  • Severe Duty Break In Process Is Vital!

    Likes2stop
    8 months ago
    Verified Purchase
    Recommended

    These have been great and I am thankful for the staff to inform me of the break in process otherwise i could have lumpy brakes from the start. Kudos Auto Zone staff Happy Valley!!!

    Purchased for: 2019 F150 XLT EcoBoost

    Helpful?

  • Stay Away - No Availability

    AutozoneNoMore
    1 year ago
    Sweepstakes Entry

    Don’t buy these - they come from Memphis, TN if you’re lucky to have them arrive at all. They are out of stock and won’t tell you until a month later that they can’t fulfill. And they’ll end up fulfilling an odd number if anything so you end up with a paperweight.

    Purchased for: Ford F150

    Helpful?

  • Rotor

    Terry
    1 year ago
    Verified Purchase
    Recommended
    Sweepstakes Entry

    Excellent replacement for the OEM equipment. The threaded holes will be useful when these need to be replaced.

    Helpful?

  • Worth the money

    Brad
    1 year ago
    Verified Purchase
    Recommended
    Sweepstakes Entry

    These rotors aren’t the least expensive rotors that AutoZone offers but they are worth the extra money if you own a truck these days. With the stop and go traffic we see these days and the weight of the trucks these rotors are a great choice. So far mine are doing as expected and I suspect they will not warp like my factory rotors were doing.

    Purchased for: 2013 Ford F150 5.0L Coyote

    Helpful?