Skip to main content
HalloweenPetLawn & GardenTruck & AutomotiveSporting GoodsHorseFarm & RanchClothingLivestockPet & Animal PharmacyToolsPoultryFencing & GatesHome ImprovementOutdoor LivingHeating & CoolingHome Decor & FurnitureOutdoor Power EquipmentTrailers & TowingBoots & ShoesWild Birds & WildlifeToysGift CardsServices Propane RefillTrailer RentalGarden CenterFeed CenterSame Day DeliveryPetVet ClinicPet WashGrooming at PetsenseDog Training at PetsenseTractor Supply RxPet InsuranceWag!

"Savings and Offers"

Weekly AdSaleClearance

"More Options"

Weekly AdWhat's NewTractor Supply AppEarn Rewards with Neighbor's ClubHometown HeroesLife Out Here BlogTSC Exclusive BrandsTop BrandsClearance ItemsBattery FinderOutdoor Power Equipment Parts FinderHitch Finder

Spend $49.99 to unlock Free Delivery on most orders

|
Learn More
Order statusTSC Credit CardsWhat’s newPetsenseWeekly Ad
​

Sign In / Enroll

Get rewarded!

​
Menu

Search

Home

Sign In

Cart
5.0
(2)
5.0 out of 5 stars. 2 reviews
A woman outside with a dog
A woman outside with a dog
  1. Home
  2. /
  3. Trailers & Towing
  4. /
  5. Trailer Tires & Wheels
  6. /
  7. Trailer Tires
  8. /

  9. RubberMaster S378 480-12 4P High-Speed Trailer Tire

  1. Home
  2. /
  4. /
  5. Trailer Tires

RubberMaster S378 480-12 4P High-Speed Trailer Tire

Shop all RubberMaster

  • Limited Time Deal

RubberMaster S378 480-12 4P High-Speed Trailer Tire

Item # 157006999

RubberMaster RubberMaster S378 480-12 4P High-Speed Trailer Tire
RubberMaster RubberMaster S378 480-12 4P High-Speed Trailer Tire
$58.49

Sale

Was$64.99

Save $6.50 (10%)

Add this item to unlock free delivery!

Neighbor's Club logo
Neighbor’s Club Members earn points with purchases.

Sign in or Join Now

Shop all RubberMaster

  • Limited Time Deal

RubberMaster S378 480-12 4P High-Speed Trailer Tire

Item # 157006999

RubberMaster RubberMaster S378 480-12 4P High-Speed Trailer Tire
RubberMaster RubberMaster S378 480-12 4P High-Speed Trailer Tire

$58.49

Sale

Was$64.99

Save $6.50 (10%)

financeCard Logo
New Cardmembers earn a $20 Reward‡ with qualifying purchase of $20 or more plus earn 5% in Rewards+ on this purchase. Valid through 8/9/26.

Add this item to unlock free delivery!

This item is available online only

Delivery to

Free standard delivery on online footwear & Clothing purchases of $49 and over.

​
Neighbor's Club logo
Neighbor’s Club Members earn points with purchases.

Sign in or Join Now

Five continuous circumferential ribs on the RubberMaster S378 480-12 4P High-Speed Trailer Tire offer excellent straight-line stability. Resisting irregular treadwear, this trailer tire provides level, continued traction. For confident driving, this tire is backed by the Ultimate Advantage Lifetime Warranty.

Looking for more information on tires? Check out our guide on tires in the product documents section.

  • 4 Ply Rated or Load Range B
BrandRubberMaster
Country of OriginImported
CompatibilityTrailer
Load Index72
Lug Bolt CountN/A
Maximum Operating Pressure60 PSI
Mounting TypeNone
Package Quantity1
Primary MaterialRubber
Product Height4 in.
Product Length21 in.
Product Weight8 lb.
Product Width21 in.
Rim Size12 in.
Speed Rating75 mph
Tire ConstructionOther
Tire Weight Capacity785 lb
Trailer Tire Diameter20.5 in
Trailer Tire Size4.8-12
WarrantyUltimate Advantage Lifetime Warranty
With or Without RimWithout Rim
Manufacturer Part Number489142
No questions have been asked about this product.

No questions have been asked about this product.

Q&As

No questions have been asked about this product.

No questions have been asked about this product.

Similar Items

  1. RubberMaster S378 570-8 4P High-Speed Trailer Tire
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    RubberMaster S378 570-8 4P High-Speed Trailer Tire

    $42.29
    Was $46.99Save $4.70
  2. RubberMaster S378 570-8 6P High-Speed Trailer Tire
    4.0 out of 5 stars with 1 reviews
    4.0 (1)

    RubberMaster S378 570-8 6P High-Speed Trailer Tire

    $53.99
    Was $59.99Save $6.00
  3. Kenda 480-12 LRB Loadstar Trailer Tire
    3.7 out of 5 stars with 6 reviews
    3.7 (6)

    Kenda 480-12 LRB Loadstar Trailer Tire

    $44.99
    Was $49.99Save $5.00
  4. RubberMaster RM76 ST205/75R14 6P ST Radial Trailer Tire
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    RubberMaster RM76 ST205/75R14 6P ST Radial Trailer Tire

    $121.49
    Was $134.99Save $13.50
  5. RubberMaster 18.5x8.50-8 6-Ply Highway Rib Tubeless High Speed Trailer Tire
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    RubberMaster 18.5x8.50-8 6-Ply Highway Rib Tubeless High Speed Trailer Tire

    $80.99
    Was $89.99Save $9.00
  6. RubberMaster RM86 ST235/80R16 14P All-Steel Trailer Tire
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    RubberMaster RM86 ST235/80R16 14P All-Steel Trailer Tire

    $278.99
    Was $309.99Save $31.00
  7. Top Rated
    RubberMaster RM76 ST235/80R16 10P ST Radial Trailer Tire
    5.0 out of 5 stars with 1 reviews
    5.0 (1)

    RubberMaster RM76 ST235/80R16 10P ST Radial Trailer Tire

    $188.99
    Was $209.99Save $21.00
  8. RubberMaster 16.5x6.50-8 6-Ply Highway Rib Tubeless High Speed Trailer Tire
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    RubberMaster 16.5x6.50-8 6-Ply Highway Rib Tubeless High Speed Trailer Tire

    $49.49
    Was $54.99Save $5.50
  9. Kenda 480/400-8 LRC Loadstar Trailer Tires
    4.2 out of 5 stars with 22 reviews
    4.2 (22)

    Kenda 480/400-8 LRC Loadstar Trailer Tires

    $31.49
    Was $34.99Save $3.50
  10. RubberMaster RM76 ST225/75R15 10P ST Radial Trailer Tire
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    RubberMaster RM76 ST225/75R15 10P ST Radial Trailer Tire

    $161.99
    Was $179.99Save $18.00
  11. RubberMaster RM86 ST225/75R15 12P All-Steel Trailer Tire
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    RubberMaster RM86 ST225/75R15 12P All-Steel Trailer Tire

    $251.99
    Was $279.99Save $28.00
  12. Top Rated
    RubberMaster RM76 ST215/75R14 8P ST Radial Trailer Tire
    5.0 out of 5 stars with 1 reviews
    5.0 (1)

    RubberMaster RM76 ST215/75R14 8P ST Radial Trailer Tire

    $130.49
    Was $144.99Save $14.50

Items You May Like

  1. RubberMaster 5.7-8 4P 8x3.75 5 on 4.5 TR412 Stamped Tire and Wheel Assembly
    3.7 out of 5 stars with 3 reviews
    3.7 (3)

    RubberMaster 5.7-8 4P 8x3.75 5 on 4.5 TR412 Stamped Tire and Wheel Assembly

    $53.99
    Was $59.99Save $6.00
  2. RubberMaster C78-13 6P and 13x4.5 5 on 4.5 TR413 Spoke Tire and Wheel Assembly
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    RubberMaster C78-13 6P and 13x4.5 5 on 4.5 TR413 Spoke Tire and Wheel Assembly

    $157.49
    Was $174.99Save $17.50
  3. RubberMaster 5.3-12 4P and 12x4 5 on 4.5 TR413 Spoke Tire and Wheel Assembly
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    RubberMaster 5.3-12 4P and 12x4 5 on 4.5 TR413 Spoke Tire and Wheel Assembly

    $103.49
    Was $114.99Save $11.50
  4. RubberMaster 5.3-12 6P and 12x4 4 on 4 TR600HP Modular Tire and Wheel Assembly
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    RubberMaster 5.3-12 6P and 12x4 4 on 4 TR600HP Modular Tire and Wheel Assembly

    $103.49
    Was $114.99Save $11.50
  5. RubberMaster 5.3-12 4P and 12x4 4 on 4 TR413 Spoke Tire and Wheel Assembly
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    RubberMaster 5.3-12 4P and 12x4 4 on 4 TR413 Spoke Tire and Wheel Assembly

    $103.49
    Was $114.99Save $11.50
  6. RubberMaster 5.3-12 6P and 12x4 4 on 4 TR600HP Spoke Tire and Wheel Assembly
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    RubberMaster 5.3-12 6P and 12x4 4 on 4 TR600HP Spoke Tire and Wheel Assembly

    $107.99
    Was $119.99Save $12.00
  7. RubberMaster 4.8-12 4P and 12x4 5 on 4.5 TR413 Modular Tire and Wheel Assembly
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    RubberMaster 4.8-12 4P and 12x4 5 on 4.5 TR413 Modular Tire and Wheel Assembly

    $98.99
    Was $109.99Save $11.00
  8. RubberMaster 5.3-12 6P and 12x4 5 on 4.5 TR600HP Modular Tire and Wheel Assembly
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    RubberMaster 5.3-12 6P and 12x4 5 on 4.5 TR600HP Modular Tire and Wheel Assembly

    $103.49
    Was $114.99Save $11.50
  9. RubberMaster 5.3-12 6P and 12x4 5 on 4.5 TR600HP Spoke Tire and Wheel Assembly
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    RubberMaster 5.3-12 6P and 12x4 5 on 4.5 TR600HP Spoke Tire and Wheel Assembly

    $107.99
    Was $119.99Save $12.00
  10. Kenda 480/400-8 LRB Loadstar Trailer Tire and 5-Hole Wheel
    4.1 out of 5 stars with 28 reviews
    4.1 (28)

    Kenda 480/400-8 LRB Loadstar Trailer Tire and 5-Hole Wheel

    $44.99
    Was $49.99Save $5.00
  11. Hi-Run 4.80-12 Trailer Tire, 4-Hole White Spoke Wheel, Load Range B 4PR
    4.7 out of 5 stars with 235 reviews
    4.7 (235)

    Hi-Run 4.80-12 Trailer Tire, 4-Hole White Spoke Wheel, Load Range B 4PR
  12. RubberMaster RM76 ST205/75R15 6P ST Radial Trailer Tire (Tire Only)
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    RubberMaster RM76 ST205/75R15 6P ST Radial Trailer Tire (Tire Only)

    $125.99
    Was $139.99Save $14.00

Customers Also Bought

  1. Carry-On Trailer 4.80-12 12 in. Bias 6-Ply Trailer Tire and White Mod Wheel 5 Lug on 4.5 in.
    4.6 out of 5 stars with 377 reviews
    4.6 (377)

    Carry-On Trailer 4.80-12 12 in. Bias 6-Ply Trailer Tire and White Mod Wheel 5 Lug on 4.5 in.
  2. Carry-On Trailer 4.80-12 12 in. Bias 6-Ply Trailer Tire and Black Mod Wheel 5 Lug on 4.5 in.
    4.7 out of 5 stars with 19 reviews
    4.7 (19)

    Carry-On Trailer 4.80-12 12 in. Bias 6-Ply Trailer Tire and Black Mod Wheel 5 Lug on 4.5 in.

    $109.99
  3. Carry-On Trailer 14 in. ST205/75D14 Bias 6-Ply Trailer Tire and Black Mod Wheel 5 Lug on 4.5 in.
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Carry-On Trailer 14 in. ST205/75D14 Bias 6-Ply Trailer Tire and Black Mod Wheel 5 Lug on 4.5 in.

    $174.99
  4. Carry-On Trailer ST205/75D14 14 in. Bias 6-Ply Trailer Tire and White Spoke Wheel 5 Lug on 4.5 in.
    4.6 out of 5 stars with 653 reviews
    4.6 (653)

    Carry-On Trailer ST205/75D14 14 in. Bias 6-Ply Trailer Tire and White Spoke Wheel 5 Lug on 4.5 in.

    $159.99
    Was $179.99Save $20.00
  5. Carry-On Trailer ST175/80D13 13 in. Bias 6-Ply Trailer Tire and White Mod Wheel 5 Lug on 4.5 in.
    4.6 out of 5 stars with 370 reviews
    4.6 (370)

    Carry-On Trailer ST175/80D13 13 in. Bias 6-Ply Trailer Tire and White Mod Wheel 5 Lug on 4.5 in.

    $149.99
  6. Carry-On Trailer 175/80R-13 5 on 4.5 Karrier Radial Trailer Tire and 5-Hole Custom Spoke Wheel
    4.7 out of 5 stars with 334 reviews
    4.7 (334)

    Carry-On Trailer 175/80R-13 5 on 4.5 Karrier Radial Trailer Tire and 5-Hole Custom Spoke Wheel

    $149.99
  7. Carry-On Trailer ST205/75D15 15 in. Bias 6-Ply Trailer Tire and Black Mod Wheel 5 Lug on 4.5 in.
    4.5 out of 5 stars with 144 reviews
    4.5 (144)

    Carry-On Trailer ST205/75D15 15 in. Bias 6-Ply Trailer Tire and Black Mod Wheel 5 Lug on 4.5 in.

    $189.99
  8. Top Rated
    RubberMaster 8-14.5 14-Ply Highway Rib Tubeless Low Platform Trailer Tire
    5.0 out of 5 stars with 8 reviews
    5.0 (8)

    RubberMaster 8-14.5 14-Ply Highway Rib Tubeless Low Platform Trailer Tire

    $98.99
    Was $109.99Save $11.00
  9. RubberMaster RM86 ST235/85R16 14P All-Steel Trailer Tire (Tire Only)
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    RubberMaster RM86 ST235/85R16 14P All-Steel Trailer Tire (Tire Only)

    $206.99
    Was $229.99Save $23.00
  10. Top Rated
    Hi-Run 5.3-12 4PR Boat Trailer Tire
    5.0 out of 5 stars with 5 reviews
    5.0 (5)

    Hi-Run 5.3-12 4PR Boat Trailer Tire

    $67.49
    Was $74.99Save $7.50
  11. RubberMaster G78-14 (ST215/75D14) 6-Ply Highway Rib Tubeless High Speed Trailer Tire
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    RubberMaster G78-14 (ST215/75D14) 6-Ply Highway Rib Tubeless High Speed Trailer Tire

    $134.99
    Was $149.99Save $15.00
  12. Hi-Run 5.7-8 6PR Replacement SU02 Trailer Tire
    4.3 out of 5 stars with 3 reviews
    4.3 (3)

    Hi-Run 5.7-8 6PR Replacement SU02 Trailer Tire

    $53.99
    Was $59.99Save $6.00

Reviews

Rating Snapshot

Select a row below to filter reviews.

5 starsstars

2
2 reviews with 5 stars.

4 starsstars

0
0 reviews with 4 stars.

3 starsstars

0
0 reviews with 3 stars.

2 starsstars

0
0 reviews with 2 stars.

1 starstars

0
0 reviews with 1 star.

Overall Rating

5.0
1 out of 1 (100%) reviewers recommend this product

Review this Product

Select to rate the item with 1 star. This action will open submission form.
Select to rate the item with 2 stars. This action will open submission form.
Select to rate the item with 3 stars. This action will open submission form.
Select to rate the item with 4 stars. This action will open submission form.
Select to rate the item with 5 stars. This action will open submission form.
Adding a review will require a valid email for verification
1 to 1 of 2 Reviews .
1 – 1 of 2 Reviews
Sort by
Most Recent
Waddy Ky
Reviews 5
5 out of 5 stars.

Road rubber

5 years ago
The pictures show it mounted but don’t be fooled it does not come with a rim. It is a decent tire. I’ll see if it holds up after some use

Yes, I recommend this product.

1 Ratings-Only Review

Get the top deals, latest trends and more
Sign up for emails from Tractor Supply today.
First Name*
Last Name*
Email*

Customer Support

  • Order Status

  • Return Policy

  • Delivery Options

  • Tax Exemptions

  • Frequently Asked Questions

  • Contact Us

  • Recall Notices

  • Call:  

    (877) 718-6750

  • Mon - Sat: 7am - 9pm CT

  • Sun: 8am - 7pm CT

  • Closed Christmas Day

About Us

  • Who We Are

  • Investor Relations

  • Stewardship

  • Community

  • Military Support

  • Product Catalog

  • Tractor Supply Stores

  • .Pharmacy Verified Website

Work With Us

  • Careers

  • Sponsorship

  • Affiliate Program

  • Potential Vendor Partners

  • Vendor Information

  • Tractor Supply Media Network

Neighbor's Club

  • About

  • Rewards

  • Hometown Heroes

  • Frequently Asked Questions

  • Terms & Conditions

Credit Center

  • TSC Credit Card

  • Klarna

Stay Connected

Connect & Share with the Tractor Supply Community.

Tractor Supply App

Shop on the go with the Tractor Supply App

Learn More

Stay Connected

Connect & Share with the Tractor Supply Community.

Tractor Supply App

Shop on the go with the Tractor Supply App

Learn More
  • Order Status

  • Return Policy

  • Delivery Options

  • Tax Exemptions

  • Frequently Asked Questions

  • Contact Us

  • Recall Notices

  • Call:  (877) 718-6750

  • Mon - Sat: 7am - 9pm CT

  • Sun: 8am - 7pm CT

  • Closed Christmas Day

  • Who We Are

  • Investor Relations

  • Stewardship

  • Community

  • Military Support

  • Product Catalog

  • Tractor Supply Stores

  • .Pharmacy Verified Website

  • Careers

  • Sponsorship

  • Affiliate Program

  • Potential Vendor Partners

  • Vendor Information

  • Tractor Supply Media Network

  • About

  • Rewards

  • Hometown Heroes

  • Frequently Asked Questions

  • Terms & Conditions

  • TSC Credit Card

  • Klarna

Connect & Share with the Tractor Supply Community.

Shop on the go with the Tractor Supply App

Learn More
  • Privacy policy
  • Your Privacy Choices
  • Terms and Conditions
  • California Transparency Act
  • Legal Notices
  • Accessibility
  • Responsible Disclosure Statement
  • Surprise (Balance) Medical Billing Disclosure
  • Transparency in Coverage
  • Human Rights Policy
  • Vendor Code of Conduct
  • California Notice of Collection
  • Privacy Requests

© 2026, Tractor Supply Co. All Rights Reserved.