MRF
MRF Steel Muscle S1R4 235/75R17.5 Load Range G Highway Rib Tire (Commercial Truck)
MRF Steel Muscle S1R4 235/75R17.5 Load Range G Highway Rib Tire (Commercial Truck)
SKU:12371970
Out of stock
Couldn't load pickup availability
- Genuine brand-name parts
- Ships from US warehouse
- 30-day returns
MRF Steel Muscle S1R4 in size 235/75R17.5 · Load Range G. The MRF Steel Muscle S1R4 is a heavy-duty highway rib tire for steer and trailer positions on trucks and buses. A flat tread contour aids handling and even wear, longitudinal grooves disperse water, and sipes add wet-road grip over a robust casing. Tubeless.
- For steer and trailer positions
- Flat tread contour for even wear
- Longitudinal grooves resist hydroplaning
- Sipes and block edges for wet grip
- Wear-resistant tread compound
Specifications
| Brand | MRF |
|---|---|
| Model | Steel Muscle S1R4 |
| Tire size | 235/75R17.5 |
| Load range | G (14-ply rated) |
| Construction | Radial |
| Tire type | Highway Rib (steer/trailer) |
| Season | All-Season |
| Category | Commercial Truck |
| Approx. overall diameter | 31.4 in |
| Approx. section width | 9.3 in |
| Approx. weight | 77 lb |
| DOT date (year made) | 2017 |
| Manufacturer part number | 12371970 |
| Sold as | Single tire (each) |
Good to know
- Priced per tire — add 2 for a pair or 4 for a full set.
- Match the size printed on your current tire's sidewall (235/75R17.5) and use the same or a higher load index and speed rating.
- Free shipping to the lower 48 states by FedEx Ground — faster FedEx options are offered at checkout. Tires ship unboxed with the label on the tread.
- Mounting and balancing are not included. Tires that have been mounted or driven on can't be returned.
Shipping & delivery
Shipping & delivery
Orders ship from the distributor warehouse closest to you, normally within 1–3 business days of purchase. Standard ground delivery takes 3–7 business days in the continental US; expedited options are shown at checkout. Oversized items (bumpers, running boards, large tonneau covers, some marine equipment) ship LTL freight — we contact you to schedule delivery and a signature is required.
Returns & warranty
Returns & warranty
Unused, uninstalled parts in original packaging can be returned within 30 days of delivery. A restocking fee of up to 20% may apply depending on the product and supplier, and return shipping is the buyer’s responsibility unless the item arrived defective, damaged or incorrect. Every product carries the full manufacturer warranty. Contact us with your order number to start a return.
Fitment & part numbers
Fitment & part numbers
Verify fitment with the manufacturer part number shown above and your vehicle’s year, make, model and trim. If the listing says “Fits select…”, confirm your exact application before ordering. Not sure? Send us your VIN and the part number and we’ll check it for you.
