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ST235/80R16 in 14-ply Load Range G is a heavy-duty trailer size used on RVs, fifth wheels, and cargo trailers rated for serious weight — every tire here is genuinely 14-ply/Load Range G rated, not a lower-ply tire mislabeled. Note that no American-made tire currently exists in this exact size; every real option is an imported or international brand built to US spec.
| # | Product | Price | Where to buy |
|---|---|---|---|
| 1 | Goodyear Endurance ST235/80R16 | $155-$175 per tire | Amazon · eBay |
| 2 | Sailun S637 | $110-$140 per tire | Amazon · eBay |
| 3 | Provider (Taskmaster) ST235/80R16 | $130-$160 per tire | Amazon · eBay |
| 4 | Westlake ST235/80R16 | $95-$120 per tire | Amazon · eBay |
| 5 | Transeagle ST Radial ST235/80R16 | $100-$130 per tire | Amazon · eBay |
| 6 | Gladiator All Steel ST235/80R16 | $100-$130 per tire | Amazon · eBay |
The picks, in detail
Goodyear Endurance ST235/80R16
A well-regarded, higher-speed-rated trailer tire (N-rated, above the 75-81 mph typical of others in this size) from one of the most trusted names in trailer tires.
- Load Range G, 14-ply equivalent
- N speed rating (higher than most ST-rated trailer tires)
- Purpose-built trailer tread design
- Strong reputation for reliability specifically in trailer/RV use
- Higher speed rating than most competitors in this size
- Priciest option in this list
- Premium reputation means less room to save versus imported alternatives
Sailun S637
A trailer tire that’s earned good reviews specifically from heavy RV and fifth-wheel owners, at meaningfully less than the Goodyear Endurance.
- Load Range G, 14-ply
- ST-rated trailer tread
- Strong track record with heavy RV/5th-wheel users specifically
- Noticeably cheaper than the Goodyear Endurance
- Speed rating lower than the Goodyear Endurance
- Less brand recognition in the US than Goodyear
Provider (Taskmaster) ST235/80R16
A commercial-grade trailer tire with a 4,080 lb per-tire capacity, the highest speed rating in this size class (81 mph) and the deepest tread depth (11/32″) of the group.
- Load Range G, 14-ply, 4,080 lb capacity per tire
- 81 mph speed rating — highest among common options here
- 11/32″ tread depth, deepest in this size class
- Best-in-class speed rating and tread depth for this size
- Commercial-grade capacity rating
- Less mainstream brand recognition than Goodyear or Sailun
- Sold primarily through trailer-parts specialists rather than general tire retailers
Westlake ST235/80R16
A budget-tier 14-ply tire with double steel belts and double polyester plies plus a nylon overlay — genuine Load Range G construction at the lowest price point in this list.
- Load Range G, 14-ply, 4,080 lb max load at 110 PSI
- Double steel belt, double polyester ply, nylon overlay
- Lowest price of the genuinely 14-ply-rated options here
- Full Load Range G spec despite the budget price
- Less established reputation for longevity than Goodyear or Sailun
- Fewer long-term owner reviews than the more established brands
Transeagle ST Radial ST235/80R16
A radial (not bias-ply) construction in this size and load range, for trailer owners who specifically want radial ride characteristics at Load Range G capacity.
- Radial construction, Load Range G
- ST-rated trailer application
- Radial construction gives smoother ride/less heat buildup than bias-ply at highway speed
- Competitively priced against the other budget options here
- Less widely reviewed than Sailun or Westlake in this specific size
- Radial ST trailer tires are less common than bias-ply in this heavy-duty range — confirm compatibility with older trailer wheels/suspension
Gladiator All Steel ST235/80R16
An all-steel-belted 14-ply construction, another budget-to-mid-tier option genuinely rated Load Range G rather than a lower-ply tire sold under a bigger-sounding size claim.
- All-steel belted construction, Load Range G, 14-ply
- All-steel belting is a durability step up from polyester-only construction
- Competitive pricing against Westlake and Transeagle
- Sold mainly through specialty trailer-tire retailers, less availability at general tire shops
- Newer/less-established brand recognition than Goodyear or Sailun
Buying tips
- Confirm the tire is genuinely Load Range G / 14-ply rated in the exact ST235/80R16 marking before buying — this size sees more mislabeled or lower-ply listings than passenger-car sizes, since it’s a specialty trailer fitment.
- There is no American-made tire in this exact ST235/80R16 14-ply size today; every real option here is manufactured overseas to US DOT spec, so brand reputation and warranty terms matter more than country of origin.
- If your trailer runs consistently at or near its max GVWR, prioritize the Goodyear Endurance or Provider for their higher speed ratings and capacity margin rather than the cheapest tire in this list.
As an Amazon Associate and eBay Partner, toptenpick.com earns from qualifying purchases. Prices and availability are subject to change.