How do we know which model number to buy?

The tire size should be on the side of your tire, or maybe on a sticker inside the door jamb. Once you know that you can use the dropdown menu here http://www.peerlesschain.com/tire-chain-finder/traction/tirechains to find the right model. They are very low-profile, and don't need much clearance at all. I've had mine about 5 years now - only need them a few times per winter here in Oklahoma - but they are fantastic.

I have a 2017 toyota sienna tire size 235/55r18. per the chart i need z571 but i have read reviews that this is not the correct size for my car? help?

I would say got to the web site and put in your tire size. I would get the one the manufacture recommends. I work Emergency services and have used these for more years than I can remember. I have a set in each of my personal vehicle. An I am NOT a paid spokes person. Just a fireman with an honest opinion.

Does anyone experience severe vibration when using these in anything but deep snow? I never exceeded 30 mph.

These chains will soon be destroyed by driving on bare pavement, and I am sure that there as 'vibration' as they wear-out. One of the inherent problems with any type of tire-chain is 'cleared roadways'. If vehicles with 'chains' ruled; the road would never be scraped and salted 'clean'. These 'Cable Chains' are easy enough to install and remove that if you 'really' need to 'Go'; put them on for the snowy street . . remove them for the cleared highway, and repeat as often as needed.

Does these work for 235/50-19?

Yes, it should work. The sizing chart says so, plus I have experience with 235/55-18 size tires (Bridgestone Dueler Alenza specifically) which are a tiny bit loose with the Z-571s. 235/50-19 is a little larger, so I would think the fit would be better.

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Z-563 Z-Chain Extreme Performance Cable Tire Traction Chain - Set of 2

Product ID: 15102189

Details

Brand
SCC
Global Trade Identification Number
Item Weight
5 pounds
Material
Metal
Vehicle Service Type
all of the

⏱️Fast, no-move installation & removal

⚙️Manganese alloy cross members for max durability

🛡️Compatible with ABS, AWD & traction control

820.83 DT

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Description

❄️ Grip the winter like a pro—never get left behind!

UNMATCHED DURABILITY - Manganese alloy cross members deliver superior traction and long-lasting performance that outlasts conventional chains.
CLEARANCE READY DESIGN - Meets SAE Class 'S' clearance for vehicles with limited wheel well space—no compromises on fit or safety.
EFFORTLESS INSTALLATION - Install or remove quickly without moving your vehicle—perfect for on-the-go professionals who value time and safety.
TECH SAVVY COMPATIBILITY - Seamlessly works with anti-lock brakes, traction control, and AWD systems, ensuring your vehicle’s electronics stay fully functional.
TRUSTED BY FIRST RESPONDERS - The go-to traction solution for police, fire, and ambulance fleets across North America for over a decade—join the elite who never get stuck.

The Z-563 Z-Chain Extreme Performance Cable Tire Traction Chain set offers professional-grade winter traction with manganese alloy cross members for enhanced durability. Designed for fast, secure installation without moving your vehicle, it’s fully compatible with modern vehicle safety systems like ABS and AWD. Meeting SAE Class 'S' clearance, it fits vehicles with limited wheel well space, making it a trusted choice for emergency fleets and winter warriors alike.

Specifications

ASIN	B000OAVLJ0
Automotive Fit Type	Universal Fit
Best Sellers Rank	#44,362 in Automotive ( See Top 100 in Automotive ) #10 in Passenger Car Snow Chains
Brand Name	SCC
Compatible with Vehicle Type	all of the above
Customer Reviews	4.3 4.3 out of 5 stars (1,751)
Global Trade Identification Number	00044182005569
Included Components	Tire chain
Item Type Name	Tire chain
Item Weight	5 pounds
Manufacturer	Security Chain
Manufacturer Part Number	Z563
Manufacturer Warranty Description	Traction product warranty: All SCC winter traction products are warranted free from defect in workmanship and material for one year from the date of delivery to user. Defective product may be returned to the manufacture, freight prepaid, within 10 days of alled defective date. Inspection will be done to determine the cause of failure. Chain determined to be defective will be repaired or replaced. …
Material Type	Metal
Model Number	Z-563
Number of Items	1
UPC	044182005569
Unit Count	2 Count

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820.83 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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Received my product in pristine condition. Great service overall.

1 month ago

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