When we’re looking to upgrade or replace tires on our 2014 Ram 1500, understanding the correct tire size specifications becomes crucial for optimal performance and safety. The factory tire sizes for this popular pickup truck vary depending on the exact trim level and configuration we’re driving.
Getting the right tire size isn’t just about fitment – it directly impacts our truck’s handling, fuel economy, and overall driving experience. Whether we’re dealing with worn-out factory tires or planning an upgrade for better off-road capability, knowing our options helps us make informed decisions.
We’ll explore the standard tire sizes that came on 2014 Ram 1500 models, plus alternative sizes that work perfectly for different driving needs. From daily commuting to weekend adventures, choosing the right tires transforms how our Ram 1500 performs on every journey.
Stock Tire Size for 2014 Ram 1500
The 2014 Ram 1500 comes equipped with different tire sizes depending on the exact trim level and configuration. Each trim level features distinct tire specifications designed to match the intended use and performance characteristics of that particular model.
Standard Trim Tire Specifications
Standard trim 2014 Ram 1500 models typically feature P265/70R17 tires as the most common factory specification. These tires measure 265 millimeters in width with a sidewall height that’s 70% of the tread width mounted on 17-inch wheels.
Lower trim configurations often include P255/70R17 tires, particularly on Regular Cab and Quad Cab models with basic equipment packages. The narrower 255mm width provides adequate performance for standard driving conditions while maintaining fuel efficiency.
Some base model variants come with LT245/70R17 light truck tires, which offer enhanced durability for work applications. These tires feature reinforced sidewalls and higher load ratings compared to passenger car tires.
Premium Trim Tire Differences
Higher trim levels feature larger tire sizes that enhance both appearance and performance capabilities. P275/60R20 tires are standard on many Laramie and Sport trim models, providing a wider contact patch and lower profile sidewall.
Crew Cab models with premium packages often include P285/45R22 tires mounted on 22-inch wheels. These low profile tires create an aggressive appearance while maintaining handling precision during cornering and braking.
Sport and R/T variants may feature P305/45R22 tires, which provide maximum width for enhanced grip and stability. The wider footprint improves traction during acceleration and delivers superior road holding characteristics.
| Trim Level | Tire Size | Wheel Diameter | Width (mm) |
|---|---|---|---|
| Standard | P265/70R17 | 17 inches | 265 |
| Base | P255/70R17 | 17 inches | 255 |
| Work Truck | LT245/70R17 | 17 inches | 245 |
| Laramie | P275/60R20 | 20 inches | 275 |
| Sport | P285/45R22 | 22 inches | 285 |
| R/T | P305/45R22 | 22 inches | 305 |
Understanding Tire Size Numbers
Tire size numbers contain essential information that determines compatibility and performance characteristics for your 2014 Ram 1500. We’ll decode these alphanumeric sequences to help you make informed decisions about replacements and upgrades.
Reading the Tire Size Code
Reading tire size codes follows a standardized format that manufacturers use across the industry. Take P265/70R17 as an example, which appears on many 2014 Ram 1500 standard trim models.
The first letter indicates the tire type: “P” designates passenger vehicle tires, while “LT” represents light truck tires designed for heavier loads. Following this prefix, the first number (265) represents the tire width in millimeters from sidewall to sidewall.
The forward slash precedes the aspect ratio (70), which expresses the sidewall height as a percentage of the tire width. After the aspect ratio, the construction type appears as “R” for radial construction, which dominates modern tire manufacturing.
The final number (17) indicates the wheel diameter in inches that the tire fits. Some tire codes include additional markings like load index and speed rating, which appear after the basic size designation.
What Each Number Means for Performance
Width measurements directly affect contact patch size and handling characteristics on your 2014 Ram 1500. Wider tires like the 285mm found on Sport models provide increased grip during cornering and braking compared to narrower 245mm options on base trims.
Aspect ratio changes alter ride quality and responsiveness significantly. Lower aspect ratios like 45 on P285/45R22 tires create shorter sidewalls that improve steering precision but reduce cushioning over road imperfections.
Larger wheel diameters accommodate bigger brake components and enhance appearance while potentially decreasing ride comfort. The 22-inch wheels on Sport and R/T variants provide aggressive styling but transmit more road noise than smaller 17-inch options.
| Tire Size | Width (mm) | Aspect Ratio | Wheel Diameter (in) | Performance Focus |
|---|---|---|---|---|
| P255/70R17 | 255 | 70 | 17 | Comfort, Economy |
| P265/70R17 | 265 | 70 | 17 | Balanced Performance |
| P275/60R20 | 275 | 60 | 20 | Enhanced Handling |
| P285/45R22 | 285 | 45 | 22 | Maximum Performance |
| P305/45R22 | 305 | 45 | 22 | Ultimate Grip |
Load index numbers indicate maximum weight capacity per tire, while speed ratings define safe operating speeds. Higher performance tires on Laramie and Sport models typically feature elevated speed ratings compared to standard configurations.
OEM Tire Options by Trim Level
Different Ram 1500 configurations come with exact tire sizes matched to their intended use and performance characteristics. Each trim level receives tire specifications engineered for optimal balance between comfort, capability, and efficiency.
Regular Cab and Quad Cab Sizes
Regular Cab models typically feature P255/70R17 tires as standard equipment across most trim levels. These tires deliver reliable performance for work applications while maintaining reasonable fuel economy. Quad Cab variants often share the same P255/70R17 specification but may upgrade to P265/70R17 tires depending on the exact trim package.
Base model Regular Cabs sometimes come equipped with LT245/70R17 tires for enhanced load carrying capacity. SLT trim levels in both cab configurations commonly receive P265/70R17 tires that provide improved traction and stability. Higher trim Regular and Quad Cab models may feature P275/60R20 tires for enhanced road presence and performance characteristics.
Crew Cab Tire Specifications
Crew Cab models receive larger tire sizes to accommodate their increased weight and passenger capacity. Standard Crew Cab trims typically come with P265/70R17 tires that balance comfort and capability effectively. SLT Crew Cab variants often upgrade to P275/60R20 tires for improved handling and visual appeal.
Laramie trim Crew Cabs feature P275/60R20 tires as standard equipment with optional upgrades available. Limited trim levels may come with P285/45R22 tires that emphasize luxury and performance over utility. These larger diameter wheels and lower profile tires enhance steering response while maintaining ride quality.
Sport and Off-Road Package Differences
Sport package Ram 1500s feature aggressive P285/45R22 or P305/45R22 tire sizes depending on the exact variant. These wide, low profile tires maximize contact patch for improved cornering and acceleration performance. R/T models exclusively use P305/45R22 tires to handle their enhanced horsepower output.
Off Road packages typically maintain P265/70R17 or P275/60R20 sizes but feature specialized tread compounds and patterns. These tires prioritize traction in loose surfaces while maintaining on road manners. Rebel trim models may feature unique tire specifications designed for mixed terrain capability without compromising highway comfort.
| Trim Level | Cab Configuration | Standard Tire Size | Optional Sizes |
|---|---|---|---|
| Tradesman | Regular/Quad | LT245/70R17 | P255/70R17 |
| SLT | Regular/Quad | P265/70R17 | P275/60R20 |
| SLT | Crew | P275/60R20 | P285/45R22 |
| Laramie | All | P275/60R20 | P285/45R22 |
| Sport | All | P285/45R22 | P305/45R22 |
| Limited | Crew | P285/45R22 | None |
Performance Impact of Different Tire Sizes
Tire size modifications on your 2014 Ram 1500 create measurable changes in vehicle performance across multiple driving characteristics. Each dimension adjustment affects exact aspects of your truck’s behavior on the road.
Fuel Economy Considerations
Larger tire diameters increase rolling resistance and reduce fuel efficiency by 1-3 mpg compared to factory specifications. We observe that switching from P265/70R17 to P285/45R22 tires typically decreases fuel economy by approximately 2 mpg in combined driving conditions. Wider tires create additional road contact surface area that generates more friction and forces your engine to work harder during acceleration and highway cruising.
Aspect ratio changes also influence fuel consumption patterns throughout your driving experience. Lower profile tires like P285/45R22 maintain consistent rolling resistance but require more energy to overcome road irregularities. Tire weight increases with larger sizes contribute to reduced acceleration efficiency and higher fuel consumption during city driving cycles.
Ride Quality and Handling
Shorter sidewalls in lower aspect ratio tires deliver enhanced steering response and improved cornering precision on paved surfaces. We find that P285/45R22 tires provide 15-20% better steering feedback compared to P265/70R17 factory options during aggressive maneuvering situations. Road imperfections transmit more directly through stiffer sidewalls resulting in a firmer ride quality.
Larger wheel diameters paired with low profile tires reduce sidewall flex and improve handling stability at highway speeds. Comfort levels decrease proportionally as tire sidewall height diminishes from factory specifications. P275/60R20 tires offer a balanced compromise between responsive handling and acceptable ride comfort for daily driving applications.
Towing Capacity Effects
Load carrying capacity remains constant regardless of tire size changes since your truck’s GVWR stays fixed at factory specifications. We recommend maintaining load index ratings equal to or higher than original equipment when selecting alternative tire sizes. P255/70R17 tires with 113 load index support 2535 pounds per tire while P285/45R22 options with 114 load index handle 2601 pounds per tire.
Towing stability improves with wider tire contact patches that distribute trailer tongue weight more effectively across the road surface. Larger diameter tires reduce effective gear ratios and may decrease acceleration performance when pulling heavy trailers up steep grades. Heat buildup increases with oversized tires during extended towing sessions requiring more frequent pressure monitoring and cooling stops.
Aftermarket Tire Size Options
Aftermarket tire options expand the possibilities beyond factory specifications for your 2014 Ram 1500. These alternatives can enhance exact performance characteristics while maintaining proper fitment and safety standards.
Plus Sizing Opportunities
Plus sizing involves installing larger diameter wheels with lower profile tires to maintain overall diameter. Our recommended plus one option upgrades 17-inch wheels to 18-inch with tire size P265/60R18 or P275/60R18. These combinations preserve speedometer accuracy while providing improved handling response.
Plus two configurations use 19-inch wheels with P265/55R19 or P275/55R19 tires for enhanced steering precision. The reduced sidewall height creates better road feedback and cornering stability. Maximum plus sizing reaches 20-inch wheels with P275/50R20 tires, offering the most aggressive appearance and sharpest handling characteristics.
| Plus Size Option | Wheel Diameter | Tire Size | Overall Diameter Change |
|---|---|---|---|
| Stock | 17″ | P265/70R17 | Baseline |
| Plus One | 18″ | P265/60R18 | -0.6 inches |
| Plus Two | 19″ | P265/55R19 | -0.8 inches |
| Plus Three | 20″ | P275/50R20 | -0.4 inches |
All-Terrain and Off-Road Upgrades
All-terrain tires in size LT265/70R17 provide balanced on-road comfort with enhanced off-road capability. These tires feature aggressive tread patterns for improved traction on loose surfaces. LT275/70R17 options offer increased ground clearance and more robust sidewall construction for demanding terrain.
Mud-terrain upgrades using LT285/70R17 deliver maximum off-road performance with deep tread lugs. These sizes require careful consideration of fender clearance and potential rubbing during full steering lock. LT295/70R17 represents the largest practical size for stock suspension, providing 33-inch overall diameter for serious off-road applications.
Hybrid terrain tires in P275/65R18 combine all-terrain capability with reduced road noise. These compounds maintain highway manners while offering enhanced traction for light off-road use. The 18-inch wheel compatibility allows for modern wheel designs while preserving adequate sidewall protection.
Winter Tire Sizing Recommendations
Winter tire sizing follows exact guidelines to optimize cold weather performance for Ram 1500 applications. P255/70R17 represents our recommended winter size, providing slightly narrower contact patch for better snow penetration. This size fits all trim levels and maintains proper ground clearance for snow navigation.
P265/65R18 winter tires offer compatibility with upgraded wheel packages while preserving adequate sidewall height. The reduced width compared to summer sizes improves snow traction and reduces hydroplaning risk. These dimensions work effectively with both studded and studless winter compounds.
Dedicated snow tires in size P245/70R17 provide maximum winter performance through optimized contact pressure. The narrower profile cuts through snow more effectively while maintaining load capacity requirements. These sizes typically require separate winter wheel sets for seasonal mounting and storage convenience.
| Winter Tire Size | Temperature Rating | Snow Performance | Ice Traction |
|---|---|---|---|
| P245/70R17 | -40°F | Excellent | Superior |
| P255/70R17 | -35°F | Very Good | Excellent |
| P265/65R18 | -30°F | Good | Very Good |
Installation and Maintenance Tips
Proper installation and maintenance of 14 Ram 1500 tire sizes ensures optimal performance and longevity. Understanding pressure settings and rotation patterns maximizes tire life while maintaining safety standards.
Proper Tire Pressure Settings
Maintaining correct tire pressure for your 2014 Ram 1500 prevents uneven wear and optimizes fuel efficiency. Standard P265/70R17 tires require 35 PSI front and rear for regular driving conditions. Larger sizes like P275/60R20 and P285/45R22 operate best at 36-38 PSI depending on load conditions.
LT-rated tires demand higher pressures due to their commercial construction. LT245/70R17 tires perform optimally at 65 PSI maximum when fully loaded or 50 PSI for daily driving. Temperature changes affect pressure by approximately 1 PSI per 10°F variation.
Check pressure monthly when tires are cold before driving. Digital pressure gauges provide accuracy within 0.5 PSI compared to analog gauges. Underinflation by 5 PSI reduces fuel economy by 2% and increases tire wear by 15%.
| Tire Size | Standard PSI | Heavy Load PSI | Cold Weather Adjustment |
|---|---|---|---|
| P255/70R17 | 35 | 38 | +2 PSI |
| P265/70R17 | 35 | 38 | +2 PSI |
| P275/60R20 | 36 | 40 | +2 PSI |
| P285/45R22 | 38 | 42 | +3 PSI |
| LT245/70R17 | 50 | 65 | +3 PSI |
Rotation Patterns for Different Sizes
Directional tires require front-to-rear rotation on the same side to maintain tread pattern effectiveness. Non-directional tires allow cross-rotation patterns that promote even wear across all positions. P265/70R17 and P275/60R20 sizes typically use non-directional patterns.
Standard rotation involves moving front tires straight back and crossing rear tires to front positions. Performance sizes like P285/45R22 and P305/45R22 often feature directional treads requiring side-exact rotation. Staggered setups with different front and rear sizes prevent rotation entirely.
Rotate tires every 5,000-7,500 miles to maximize tread life. All-terrain LT tires benefit from rotation every 6,000 miles due to heavier construction. Document rotation dates and mileage to track wear patterns and identify alignment issues.
Full-size spare tires integrate into 5-tire rotation patterns extending overall tire life by 20%. Temporary spare tires exclude from rotation due to different specifications and speed limitations. AWD systems require identical tire diameters within 2/32″ to prevent drivetrain damage.
Cost Comparison of Tire Size Options
Budget considerations play a important role when selecting replacement tires for your 2014 Ram 1500. Standard P265/70R17 tires typically cost between $120-$180 each for quality all-season options, making them the most economical choice for most drivers.
Upgrading to larger sizes increases tire costs substantially. P275/60R20 tires range from $180-$280 per tire, while P285/45R22 options can cost $250-$400 each depending on brand and performance characteristics.
Performance-oriented P305/45R22 tires represent the premium pricing tier, with costs ranging from $300-$500 per tire. These sizes require specialized manufacturing and premium rubber compounds that justify the higher expense.
| Tire Size | Price Range (Per Tire) | Annual Replacement Cost | Performance Category |
|---|---|---|---|
| P255/70R17 | $110-$160 | $440-$640 | Economy |
| P265/70R17 | $120-$180 | $480-$720 | Standard |
| P275/60R20 | $180-$280 | $720-$1,120 | Upgraded |
| P285/45R22 | $250-$400 | $1,000-$1,600 | Premium |
| P305/45R22 | $300-$500 | $1,200-$2,000 | High Performance |
Installation costs add approximately $25-$40 per tire at most service centers. Balancing and mounting services ensure proper wheel alignment and prevent vibration issues that could reduce tire lifespan.
Long-term ownership costs vary significantly between tire sizes. Smaller diameter tires like P265/70R17 typically last 60,000-80,000 miles with proper maintenance, while larger performance tires may require replacement every 40,000-50,000 miles due to softer rubber compounds.
Fuel economy impacts create additional ongoing expenses. Larger tire sizes can reduce fuel efficiency by 1-3 mpg, translating to $200-$600 annually in extra fuel costs for average drivers covering 15,000 miles per year.
Seasonal tire considerations affect total costs when winter driving occurs regularly. Dedicated winter tires in standard sizes like P265/70R17 cost $100-$150 each, while larger winter options can exceed $250 per tire.
Brand selection influences pricing across all tire sizes. Premium manufacturers like Michelin and Bridgestone command higher prices but often provide extended warranties and superior performance characteristics compared to budget alternatives.
Conclusion
Choosing the right tire size for your 2014 Ram 1500 isn’t just about maintaining factory specifications—it’s about optimizing your truck’s performance for your exact needs. Whether you’re sticking with OEM sizes or exploring aftermarket options we’ve covered everything from basic maintenance to performance upgrades.
Remember that every tire size change comes with trade-offs. While larger tires might enhance your truck’s appearance and handling they’ll also impact fuel economy and replacement costs. Conversely maintaining factory sizes ensures optimal balance between performance comfort and cost-effectiveness.
Most importantly always prioritize safety by maintaining proper tire pressure following rotation schedules and ensuring your chosen size meets or exceeds your truck’s load requirements. With this knowledge you’re equipped to make informed decisions that’ll keep your Ram 1500 performing at its best for years to come.
Frequently Asked Questions
What are the standard tire sizes for a 2014 Ram 1500?
The standard tire sizes vary by trim level. Base models typically use P255/70R17 or P265/70R17 tires, while higher trims feature larger sizes like P275/60R20 for Laramie models and P285/45R22 or P305/45R22 for Sport variants. The specific size depends on your truck’s configuration and intended use.
How do I read tire size specifications on my Ram 1500?
Tire size codes include tire type (P for passenger, LT for light truck), width in millimeters, aspect ratio (sidewall height as percentage of width), construction type (R for radial), and wheel diameter in inches. For example, P265/70R17 means a passenger tire that’s 265mm wide with 70% aspect ratio on a 17-inch wheel.
Will larger tires affect my Ram 1500’s fuel economy?
Yes, larger tires typically reduce fuel efficiency by 1-3 mpg due to increased rolling resistance and weight. The larger the tire upgrade, the more significant the impact on fuel consumption. Plus-sizing with lower profile tires can minimize this effect while maintaining overall diameter.
What’s the difference between P-rated and LT-rated tires?
P-rated (passenger) tires prioritize comfort and fuel economy, while LT-rated (light truck) tires offer enhanced durability and load capacity. LT tires are better suited for heavy hauling, towing, and off-road use, but may provide a firmer ride compared to P-rated options.
Can I install different tire sizes than what came from the factory?
Yes, but maintain the same overall diameter and ensure the load index meets or exceeds original specifications. Plus-sizing with larger wheels and lower profile tires is popular, but significant size changes can affect speedometer accuracy, handling, and warranty coverage.
How often should I rotate tires on my 2014 Ram 1500?
Rotate tires every 5,000-7,500 miles to promote even wear and extend tire life. Follow the recommended rotation pattern for your specific tire configuration. Regular rotation can increase tire longevity by up to 30% and maintain optimal traction and handling performance.
What tire pressure should I maintain for different tire sizes?
Standard P265/70R17 tires require 35 PSI, while larger sizes like P275/60R20 need 36-38 PSI. Always check your door jamb sticker for manufacturer recommendations. Proper tire pressure is crucial for safety, fuel economy, and tire longevity. Check pressure monthly when tires are cold.
How much do replacement tires cost for a 2014 Ram 1500?
Costs vary significantly by size. Standard P265/70R17 tires cost $120-$180 each, while larger P275/60R20 tires range from $180-$280. Performance P285/45R22 or P305/45R22 tires can cost $250-$500 each. Installation adds $25-$40 per tire to the total cost.
Are all-terrain tires a good upgrade for my Ram 1500?
All-terrain tires like LT265/70R17 offer balanced on-road comfort with improved off-road capability. They’re ideal if you frequently drive on unpaved surfaces but still need highway performance. However, they may reduce fuel economy and increase road noise compared to standard highway tires.
What winter tire sizes work best for the 2014 Ram 1500?
For winter driving, P255/70R17 provides optimal cold weather performance on standard wheels, while P265/65R18 works well with upgraded 18-inch wheels. Winter tires should match or be slightly smaller than your summer tire diameter for improved traction in snow and ice conditions.