You're viewing new Cooper Discoverer AT3 LT Tire | 265/70R17 | Manufacturer Part No 90000032595.
Cooper Discoverer AT3 LT
The Cooper Discoverer AT3 LT is an all-terrain, all-season radial designed for drivers who split time between pavement, gravel, and jobsite surfaces. It is commonly selected for pickups and work vehicles that need dependable traction in mixed-service conditions without giving up everyday drivability. Use this page to review core specs, understand the tread design approach, and confirm whether your vehicle’s size and wheel requirements match the available fitments.
Cooper Discoverer AT3 LT Features and Specs
Cooper Discoverer AT3 LT is built as an all-terrain, all-season radial tire intended for mixed on-road and off-road use. As a radial design, it is engineered for stable, predictable road manners while supporting the kind of surface changes common in vocational driving, including pavement transitions to gravel, packed dirt, and uneven jobsite access roads.
Key specs that matter most when selecting this model are the exact size designation, overall diameter, section width, and the sidewall-marked load and speed information for that specific fitment. Because those details can vary by size, it is best to confirm the exact sidewall markings and vehicle placard requirements before purchase.
Tread Design and All-Terrain Traction
The Discoverer AT3 LT uses an all-terrain tread concept that balances road contact with void space to help the tire clear loose material. This style of tread is typically chosen to maintain consistent grip on pavement while improving bite on gravel and dirt compared with a highway-terrain pattern.
For mixed-service use, the practical advantage is predictable traction as conditions change throughout a route, such as paved roads, construction entrances, and maintained trails. Like most all-terrain tires, it can be noisier than a highway-focused tire, and it may feel firmer depending on vehicle setup and inflation practices. Matching the tire’s intended use to your actual driving surfaces is the best way to set expectations.
Application Guidance for Mixed-Service Use
Cooper Discoverer AT3 LT is often selected for vehicles that do daily road miles but regularly encounter rougher surfaces, including gravel roads, rural routes, and jobsite access. In mixed-service driving, the tire’s role is to provide dependable handling on pavement while offering added traction and durability when conditions become loose, uneven, or dirty.
This model is generally a fit for drivers who want one tire to cover commuting, hauling, and weekend off-pavement travel without moving to a dedicated mud-terrain pattern. If your vehicle spends most of its time on smooth highways, a highway-terrain design may provide a quieter ride and more road-focused feel. If deep mud is frequent, a more aggressive off-road pattern may be a better match.
Cooper Discoverer AT3 LT Sizes and Wheel Fitment
Use the tire size already on your vehicle or listed on the door placard as the starting point, then confirm wheel diameter and any clearance constraints. The validated sizes for Cooper Discoverer AT3 LT on this page are:
215/85R16, 225/75R16, 225/75R17, 235/80R17, 235/85R16, 245/70R16, 245/70R17, 245/75R16, 245/75R17, 265/60R18, 265/65R17, 265/65R18, 265/70R16, 265/70R17, 265/75R16, 275/65R18, 275/70R17, 31x10.50-15, 31x10.50R15, LT215/85R16, LT225/75R16, LT225/75R17, LT235/80R17, LT235/85R16, LT245/70R16, LT245/70R17, LT245/75R16, LT245/75R17, LT265/60R18, LT265/65R17, LT265/65R18, LT265/70R16, LT265/70R17, LT265/75R16, LT275/65R18, LT275/70R17.
Cooper Discoverer AT3 LT Comparisons
When shoppers compare Cooper Discoverer AT3 LT vs BFG KO2, the decision usually comes down to tread pattern preference, ride feel, and which sizes and load specifications best match the vehicle. Both are positioned as all-terrain options, so checking availability in your exact size and confirming sidewall-marked load information is often the most practical way to narrow the choice.
Cooper Discoverer AT3 LT vs AT3 4S is typically a question of intended use mix, with some drivers prioritizing road comfort and others prioritizing tougher mixed-surface service. Cooper Discoverer AT3 LT vs AT3 XLT comparisons often focus on how aggressive you want the tire to feel in off-pavement conditions. In any comparison, use your actual route conditions as the deciding factor.
Price and Buying Considerations
Cooper Discoverer AT3 LT price can vary by size, load specification, and retailer availability, so the most accurate approach is to start with your exact fitment and then compare like-for-like. When you review listings, confirm the full size designation, the sidewall load information, and that all four tires match if your vehicle requires identical fitments.
Before purchase, consider how often you encounter gravel, dirt, or jobsite conditions, because that is where an all-terrain tread provides value compared with a road-focused tire. Also plan for a full set plus a matching spare if your vehicle setup requires it. If you are changing sizes from stock, verify wheel width compatibility and clearance to avoid rubbing or speedometer variance.
Recommendations and practical tips
Cooper Discoverer AT3 LT is typically chosen by pickup and work-vehicle drivers who need one all-terrain tire for mixed-service use. It suits drivers who spend meaningful time on paved roads but regularly deal with gravel, dirt access roads, and changing surface conditions. It is also a practical option for owners who want an all-season tread approach that remains usable year-round, provided the tire’s specifications match the vehicle’s requirements.
When we recommend it:
- When your routes include pavement plus frequent gravel or dirt-road travel
- When you want an all-terrain tread that still behaves predictably for everyday driving
- When your vehicle needs one tire to cover commuting, hauling, and occasional off-pavement use
- When your exact size and sidewall load information match the vehicle placard requirements
When to consider other options:
- When the vehicle is used almost entirely on smooth highways and you prioritize maximum road comfort
- When deep mud or highly technical off-road use is frequent and you need a more aggressive tread pattern
- When the required size or load specification is not available in your preferred fitment
Expert tips:
- Match the complete size designation exactly before comparing options, including letter prefixes when present
- Confirm wheel diameter and wheel width suitability if you are not staying with the factory size
- Check the sidewall for load information and inflate according to the vehicle manufacturer guidance
- If you rotate tires, keep rotations consistent to help maintain even wear across all positions
Usage and care tips:
- Maintain correct inflation, underinflation can increase heat and irregular wear
- Rotate on a regular schedule that matches your vehicle and driving conditions
- Inspect tread and sidewalls after jobsite or off-pavement use for cuts, punctures, or embedded debris
- Keep alignment in spec, especially if you notice pull, vibration, or uneven shoulder wear
Guidance for choosing the right fit
We recommend the Cooper Discoverer AT3 LT for drivers and work vehicles that regularly transition between pavement, gravel, and jobsite surfaces, and want one all-terrain, all-season radial to cover those mixed conditions. It is a practical option when you need everyday drivability on-road while still being prepared for maintained dirt roads and uneven access routes. The key to a confident purchase is matching the exact size designation and confirming the sidewall load information aligns with your vehicle placard.
Best fit scenarios:
- You split time between paved roads and frequent gravel or dirt-road travel
- Your pickup or work vehicle sees mixed-service routes, including jobsite access roads
- You want an all-terrain tread approach without moving to a dedicated mud-terrain pattern
- You need a tire that supports commuting, hauling, and occasional off-pavement use in one setup
When to pause and check fitment:
- You are changing from the factory size, confirm wheel diameter, clearance, and overall dimensions first
- You are choosing between similar size formats, for example LT215/85R16 vs 215/85R16, match the full designation your vehicle requires
- You are considering 31x10.50-15 vs 31x10.50R15, confirm your current markings and verify wheel diameter and dimensions
- You are unsure about load and inflation requirements, verify the sidewall load information and follow the vehicle placard guidance
Why customers trust NeoTires:
- NeoTires tire experts can help confirm size, wheel diameter, and fitment details before you buy
- Support is available by live chat, phone, or text for quick fitment questions
- We help double-check matching fitments across all four tires, plus a spare when needed
- Fleet and multi-tire orders are supported with coordinated delivery planning
- Clear, practical guidance focused on your routes and requirements, not hype
Confirm your size and fitment
Send us your current tire size and vehicle details, and we will help you confirm the correct Discoverer AT3 LT fitment and designation.
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