Not based on the ratings alone. 89H and 91H share the same H speed symbol, but 91H has a higher load index. Whether a 91H tire can replace or be mixed with an 89H tire depends on your vehicle’s specified tire size, ratings, axle setup and drivetrain. Check the tire placard and owner’s manual before fitting or mixing them.
What 89H and 91H mean
The number is the tire’s load index; the letter is its speed symbol. Michelin lists load index 89 as a maximum rated load of 580 kg per tire and 91 as 615 kg per tire. Both carry an H speed symbol, which Michelin describes as a maximum speed rating of 210 km/h under specified conditions. That rating is not a guarantee that driving at that speed is safe in all conditions. Michelin’s guide to tire load and speed ratings
| Marking | Load index | Rated load per tire | Speed symbol |
|---|---|---|---|
| 89H | 89 | 580 kg | H |
| 91H | 91 | 615 kg | H |
These figures are Michelin’s published rating values; the page does not state a publication year. A higher load index does not by itself establish that the tire is suitable for your vehicle.
Can you replace an 89H with a 91H?
Possibly, but only if the complete tire specification and your vehicle’s requirements allow it. Michelin recommends replacement tires that match the vehicle manufacturer’s specified dimensions and load rating, and says required load and speed ratings should be met or exceeded. Compare the full tire size and construction—not just “89H” or “91H”—with the placard and owner’s manual. Michelin’s replacement guidance
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- Read the tire placard, commonly located on the driver’s door area, and consult the owner’s manual for the required tire size and ratings.
- Check the complete sidewall size and construction against the vehicle specification.
- Confirm the load index and speed symbol meet the vehicle maker’s requirements.
- For AWD or 4WD, check the manual for any matching-tire or circumference restrictions.
If the placard or manual is unclear, ask a tire professional to confirm fitment for your exact vehicle and tire size.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Can you mix 89H and 91H tires on the same car?
Michelin advises against mixing tires with different ratings and recommends consistent specifications. Its published guidance does not support treating 89H and 91H as automatically interchangeable just because they share the H symbol. If you are considering different ratings, get vehicle-specific guidance before installation.
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- MICHELIN DEFENDER2 TIRE—The MICHELIN Defender2 tire is our longest-lasting tire[1] – completely redesigned to offer increased tread life, this all-season tire also delivers stopping power so you can drive with confidence even in bad weather conditions
- ENGINEERED TO OUTLAST—The MICHELIN Defender2 tire can offer 2 years of additional treadlife compared to three leading competitive tires, outlasting them by up to 25,000 miles on a treadwear test[1]
- PEACE OF MIND—Bring peace of mind to your drive with the dependable MICHELIN Defender2 tire. This safe tire features Locking 3-D Sipes that provide hundreds of biting edges for extra grip to deliver better stopping distances than three leading competitive tires on wet and dry pavement[2]
- A BETTER FIT—The MICHELIN Defender2 tire is designed for vehicles such as the Toyota Camry, Chevrolet Equinox, Honda Accord, Toyota Sienna, Honda CR-V and more
- THE MICHELIN GUARANTEE—The MICHELIN Defender2 tire is backed by an 80,000-mile manufacturer's treadwear limited warranty[3] and a 6-year standard limited warranty[4]
Michelin’s placement instructions are not identical across its cited guidance: the Canada FAQ says tires matching in size, type and speed rating should be on the same axle, while its U.S. guidance says lower-speed-rated tires should go on the front axle when speed ratings differ. Neither placement statement should be treated as a universal rule. Follow your vehicle maker’s instructions and confirm the right arrangement for your vehicle. Michelin Canada’s tire-mixing FAQ Michelin USA’s tire-replacement guidance
If you are replacing only two tires
Michelin USA says that, when replacing only two tires, the new tires should match the existing tires in size and type and be installed on the rear axle. Check your vehicle’s instructions as well, especially for AWD or 4WD, where the owner’s manual may specify additional requirements.
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- Fit type: Vehicle Specific
- Load capacity: 1356 pounds
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- MICHELIN DEFENDER2 TIRE—The MICHELIN Defender2 tire is our longest-lasting tire – completely redesigned to offer increased tread life, this all-season tire also delivers stopping power so you can drive with confidence even in bad weather conditions
What to check before fitting or mixing them
- Complete size and construction: Compare the sidewall markings with the vehicle’s specified fitment.
- Load and speed ratings: Confirm they meet the placard or manual requirements.
- Axle pairing: Check the vehicle maker’s instructions before putting different tires on the same axle or across axles.
- Tire type and condition: Consider whether the tires match in type and have compatible tread condition.
- Drivetrain: Check AWD/4WD guidance for limits on tire circumference or matching.
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