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Cooper Discoverer AT3 4S 275/60R20 115T BSW Tire

Truck/SUV - All Terrain
All Terrain

65K Mile Warranty

Rims Not Included

easy test score

8.7 Excellent

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Out of Stock

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About the Manufacturer:

Founded in 1914 in the United States, Cooper Tires has built a century-long legacy as a cornerstone of the global replacement tire market. Now operating as a subsidiary of the Goodyear Tire & Rubber Company, the brand combines historic American engineering with cutting-edge global resources to deliver exceptional value and durability.

While Cooper boasts a rich motorsport heritage, most notably as the former long-time title partner of the Road to Indy development program, its primary focus today is strictly on consumer-driven innovation and advanced R&D.

Why Drivers Choose Cooper:

American Heritage & Expertise: Over 100 years of tire manufacturing experience, specializing in premium, high-quality aftermarket replacements.

Versatile Engineering: A comprehensive global lineup offering advanced safety, longevity, and rugged all-terrain capability.

Broad Vehicle Coverage: Reliable, budget-friendly performance engineered specifically for passenger cars, CUVs, SUVs, light trucks, and commercial vehicles.

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(877) 709-4442

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Specifications

Specs

Value

Description

Sidewall

BSW

Describes the sidewall appearance. Examples: BSW= Black Side Wall, WSW = White Side Wall, OWL = Outlined White Letters.

Load Index

115

The load index (LI) is a 2- or 3-digit number that correlates to the maximum amount of weight the tire can carry. For example, a tire with a load index of 87 indicates that the tire can carry a maximum load of 1,201 lbs. In this particularly example, 4 tires (each with a load index of 87) can carry a maximum of 4,804 lbs. Refer to your vehicle owner's manual for the recommended minimum load index.

Speed Rating
Tires speed rating

Speed rating (SR) indicates the maximum speed the tire can achieve. Higher speed ratings are typically associated with better handling capabilities. Refer to your vehicle owner's manual for the recommended minimum speed rating.

Load Range/Ply Rating

Not Available

Ply rating, more commonly referred to as load range, represents the strength and durability of the tire. Higher ratings may indicate your tires can handle heavier loads.

UTQG

620AB

To help consumers evaluate their tires, the U.S. National Highway Traffic Safety Administration (NHTSA) created the Uniform Tire Quality Grading System (UTQG). The UTQG rates tires are rated on their tread-wear, traction performance, and temperature resistance. The grade for each of these can be found on the sidewall of your tire (except for winter tires and certain light truck tires).

Max Single Load(lbs)

2679

The maximum load this tire will support. Remember to multiply this number by the number of tires installed on your vehicle to get the maximum carrying capacity. This number is directly related to the Load Index.

Max Single Air Pressure(PSI)

The maximum air pressure this tire will support. This does not represent the amount of air pressure your tires should have at all times. Consult with your owner's manual to determine the best air pressure you should use for your vehicle.

Tread Depth

13.0

The amount of tread on the tire. Once the tire is worn to 2/32nds, it is considered fully used and should be replaced at that time. Most tires will have tire indicators in the grooves of the tire to help you determine when the tires are worn down to 2/32nds.

Tread Design

Nondirectional

The pattern of the grooves, lugs, voids, and sipes on a tire's surface. This design affects the tire's traction, handling, and noise characteristics. Common types include symmetrical (uniform pattern across the tire), asymmetrical (different patterns on the inside and outside for varied road conditions), and directional (designed to rotate in one direction for improved wet traction and hydroplaning resistance).

Rim Width Range

7.5-9.5

The approved wheel rim width range this tire will support.

Measured Rim Width

8.0

The recommended wheel width as recommended by the tire manufacturer to get the best wear us performance for this tire.

Section Width

10.9

The measurement from sidewall to sidewall.

Tread Width

Not Available

The measurement from one side of the tread to the other side of the tread.

Overall Diameter

33.0

The height of the tire when fully inflated.

Manufacturer Part Number

171050002

Manufacturer part number (sku)

Financing

You can pre-qualify to finance your tires, or you can simply choose Affirm at check-out. Fill out your information and choose the monthly payment that works best for you!

Select 3, 6 or 12 monthly payments, with rates from 10% - 36% APR. 18 months financing available for orders over $1000.00

Checking your eligibility won't affect your credit. You will receive an immediate answer from Affirm.

Affirm has no hidden fees or costs and is completely secure.
Quick and easy, real tire financing, real fast! You can apply in advance and know you can shop for tires when you are ready.

To learn more visit Buy With Affirm or read their convenient Affirm FAQ's. All credit decisions are made by Affirm.

To contact Affirm regarding your account, please call 1-855-423-3729.

No hidden fees

Affirm has no hidden fees or costs and is completely secure

Flexible

You choose the payment schedule that works for you

Quick and easy

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Pay over time

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Learn more about Affirm tire financing options

No Credit? No problem!

Lease your tires with Katapult!

With a small down payment, and easy payments you can lease your tires. Payments are coordinated with your payday. Read more here about how Katapult works.

No credit required

Simple initial payment

No late fees ever

Payoff early is desired

Learn more about Katapult lease-to-own tire financing

Size Details

Size	Load Index/ Speed index	UTQG	Overall Diameter	Section Width	Rim Width Min	Rim Width Max	Rim Width Meas	Tread Depth (in)	Max Single Air Pressure (PSI)	Max Single Load (lbs)	Max Dual Air Pressure (PSI)	Max Dual Load (lbs)	MFG #
215/65R17	99T	620AB	28.1	8.7	6.0	7.5	6.0	12.0	44	1709	-	-	171030010
215/70R16	100T	620AB	27.72	8.7	5.5	7.0	6.5	13.5	44	1764	-	-	171036010
215/70R16	100T	620AB	27.7	8.7	5.5	7.0	6.5	13.5	44	1764	-	-	171036002
225/65R17	102H	620AB	28.6	9.3	6.0	8.0	6.5	12.5	44	1874	-	-	171034002
225/70R15	100T	620AB	27.7	9.0	6.0	7.5	6.5	13.5	44	1764	-	-	171015010
225/70R16	103T	620AB	28.66	9.0	6.0	7.5	6.5	13.5	44	1929	-	-	171210010
225/75R16	104T	620AB	29.13	8.6	6.0	7.5	6.0	13.5	44	1984	80	2778	171149010
225/75R16	104T	620AB	29.1	8.6	6.0	7.5	6.0	13.5	44	1984	-	-	171037002
235/60R17	102T	620AB	28.3	9.6	6.5	8.5	7.0	12.5	44	1874	80	3417	171038010
235/60R17	102T	620AB	28.3	9.6	6.5	8.5	7.0	12.5	44	1874	-	-	171038002
235/65R17	108T	620AB	29.21	9.5	6.5	8.5	7.0	13.0	50	2205	65	3527	171165002
235/65R17	108H	620AB	29.2	9.5	6.5	8.5	7.0	13.0	50	2205	-	-	171029002
235/70R16	106T	620AB	28.8	9.4	6.0	8.0	7.0	13.5	44	2094	-	-	171052002
235/70R17	109T	620AB	30.0	9.5	6.0	8.0	7.0	13.5	50	2271	-	-	171024010
235/75R15	109T	620AB	28.7	9.3	6.0	8.0	6.5	14.0	50	2271	-	-	171017010
235/75R16	108T	620AB	29.7	9.3	6.0	8.0	6.5	14.0	44	2205	-	-	171021010
235/75R17	109T	620AB	30.8	9.3	6.0	8.0	6.5	14.0	44	2271	-	-	171026010
245/65R17	111T	620AB	29.53	9.5	7.0	8.5	7.0	13.0	50	2403	-	-	171039010
245/65R17	111T	620AB	29.5	9.5	7.0	8.5	7.0	13.0	50	2403	-	-	171039002
245/70R16	111T	620AB	29.4	9.8	6.5	8.0	7.0	14.0	50	2403	-	-	171019010
245/70R16	107T	620AB	29.4	9.8	6.5	8.0	7.0	14.0	44	2149	-	-	171040002
245/70R17	110T	620AB	30.47	9.7	6.5	8.0	7.0	13.5	44	2337	80	2756	171128010
245/70R17	110T	620AB	30.5	9.7	6.5	8.0	7.0	13.5	44	2337	-	-	171041002
245/75R16	111T	620AB	30.31	9.6	6.5	8.0	7.0	14.0	44	2403	-	-	171156010
245/75R16	111T	620AB	30.3	9.6	6.5	8.0	7.0	14.0	44	2403	-	-	171042002
255/50R20	109H	620AB	30.0	10.4	7.0	9.0	8.0	12.0	50	2271	-	-	171033002
255/65R17	110T	620AB	30.2	10.2	7.0	9.0	7.5	13.0	44	2337	-	-	171023010
255/70R15	108T	620AB	29.1	10.3	6.5	8.5	7.5	14.0	44	2205	-	-	171260010
255/70R16	111T	620AB	30.0	10.2	6.5	8.5	7.5	14.0	44	2403	-	-	171020010
255/70R17	112T	620AB	31.2	10.2	6.5	8.5	7.5	14.0	44	2469	-	-	171025010
255/70R18	113T	620AB	32.1	10.2	6.5	8.5	7.5	14.0	44	2535	-	-	171043002
255/75R17	115T	620AB	32.0	10.0	6.5	8.5	7.0	14.0	44	2679	-	-	171027010
265/50R20	111T	620AB	30.5	10.6	7.5	9.5	8.5	12.0	50	2403	-	-	171068010
265/50R20	111T	620AB	30.5	10.6	7.5	9.5	8.5	13.0	50	2403	-	-	171047002
265/60R18	110T	620AB	30.55	10.7	7.5	9.5	8.0	12.5	44	2337	-	-	171167010
265/60R18	110T	620AB	30.5	10.7	7.5	9.5	8.0	13.0	44	2337	-	-	171048002
265/65R17	112T	620AB	30.6	10.6	7.5	9.5	8.0	13.0	44	2469	80	2910	171166010
265/65R17	112T	620AB	30.5	10.6	7.5	9.5	8.0	13.0	44	2469	-	-	171049002
265/65R18	114T	620AB	31.5	10.7	7.5	9.5	8.0	13.0	44	2601	-	-	171013010
265/70R15	112T	620AB	29.6	10.9	7.0	9.0	8.0	14.0	44	2469	-	-	171016010
265/70R16	112T	620AB	30.3	10.8	7.0	9.0	8.0	14.0	44	2469	-	-	171011010
265/70R16	112T	620AB	-	-	-	-	-	14.0	44	2469	-	-	171138058
265/70R17	115T	620AB	31.4	10.7	7.0	9.0	8.0	14.0	44	2679	-	-	171012010
265/70R17	115T	620AB	-	-	-	-	-	14.0	44	2679	-	-	171290002
265/70R18	116T	620AB	32.64	10.7	7.0	9.0	8.0	14.0	44	2756	-	-	171143010
265/70R18	116T	620AB	32.6	10.7	7.0	9.0	8.0	14.0	44	2756	-	-	171044002
265/75R15	112T	620AB	30.5	10.5	7.0	9.0	7.5	14.0	44	2469	-	-	171018010
265/75R16	116T	620AB	31.6	10.5	7.0	9.0	7.5	14.0	44	2756	-	-	171028010
275/45R22	112H	620AB	31.6	10.9	8.5	10.5	9.0	12.0	50	2469	-	-	171032002
275/55R20	117T	620AB	31.93	10.9	7.5	9.5	8.5	12.5	50	2833	-	-	171106010
275/55R20	117T	620AB	31.9	10.9	7.5	9.5	8.5	13.0	50	2833	-	-	171014002
275/60R20	115T	620AB	33.0	10.9	7.5	9.5	8.0	13.0	44	2679	-	-	171050002
275/65R18	116T	620AB	32.1	11.0	7.5	9.5	8.0	13.0	44	2756	-	-	171051002
285/45R22	114H	620AB	32.0	11.3	9.0	10.5	9.5	12.0	50	2601	-	-	171031002
P285/70R17	117T	620AB	32.76	11.5	7.5	9.5	8.5	14.0	44	2833	80	3417	171045010
P285/70R17	117T	620AB	32.7	11.5	7.5	9.5	8.5	14.0	44	2833	-	-	171045002