---
product_id: 12677536
title: "Mastercraft Courser Mxt LT315/70R17 D 121 Q Tire"
brand: "mastercraft"
price: "S/.3517"
currency: PEN
in_stock: true
reviews_count: 8
category: "Mastercraft"
url: https://www.desertcart.pe/products/12677536-mastercraft-courser-mxt-lt315-70r17-d-121-q-tire
store_origin: PE
region: Peru
---

# 315/70R17 size for rugged fit Stone ejector ribs prevent damage 2-ply carcass for durable protection Mastercraft Courser Mxt LT315/70R17 D 121 Q Tire

**Brand:** mastercraft
**Price:** S/.3517
**Availability:** ✅ In Stock

## Summary

> 🛞 Master the wild with tires that don’t quit — your off-road edge awaits!

## Quick Answers

- **What is this?** Mastercraft Courser Mxt LT315/70R17 D 121 Q Tire by mastercraft
- **How much does it cost?** S/.3517 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/12677536-mastercraft-courser-mxt-lt315-70r17-d-121-q-tire)

## Best For

- mastercraft enthusiasts

## Why This Product

- Trusted mastercraft brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Endure:** Proven 2-ply radial construction delivers long-lasting toughness and sidewall abrasion resistance.
- • **Quiet Yet Commanding:** Engineered to balance aggressive off-road performance with surprisingly low noise on highways.
- • **Load-Ready & Reliable:** Supports up to 3,195 lbs with a 50 PSI max pressure for confident heavy-duty use.
- • **Unmatched Off-Road Grip:** Aggressive tread blocks & side biters conquer mud and rocks with ease.
- • **Mud-Scooping Shoulder Scallops:** Angled scallops actively eject mud for sustained traction in the messiest terrains.

## Overview

The Mastercraft Courser MXT LT315/70R17 D 121 Q is a rugged mud terrain tire designed for serious off-road enthusiasts who demand durability and traction. Featuring large tread blocks, aggressive sidewall 'bite,' and stone ejector ribs, it excels in mud, rocks, and rough trails. Its proven 2-ply radial construction ensures long-lasting wear and sidewall protection, while the tread design maintains on-road stability and quieter rides. Rated for heavy loads and built to withstand harsh conditions, this tire is a top choice for adventurous drivers seeking dependable performance and standout style.

## Description

The Courser MXTTM is a mud terrain tire sporting an aggressive tread design, functional side biter shoulders and solid 2-ply carcass construction for durable and dependable off-road traction. There’s no small grooves in the shoulders of these tires! This wide-groove design provides plenty of room for mud, dirt, and debris to work out of the tread pattern to help your tires stay clean and maximize grip. The “zig zag” shape of the center channel aids in off-road grip and traction, while still providing good contact on-road to help with on-road stability and handling. Full-depth siping provides biting edge to grip wet roads and help increase wet traction.

Review: Performs well beyond price point - I purchased these for my Lexus GX460 build in a 315/70-17 (35x12.5). Without knowing much about Mastercraft, I always shrugged them off as a budget brand, low quality tire. I was wrong. Research shows this is a Cooper designed tire manufactured in Cooper facilities. Quality is not an issue at all. It should be noted they are a 2-ply sidewall instead of 3-ply. While this matters to some people, I can tell you this has not been an issue for me at all or the many, many Jeep owners who’ve put these tires through their paces. These tires are light weight (63.3 pounds on my scale), they wear well after 7,000 miles and they’re very much what I would consider quite. These are aggressive mud terrains. They make noise and noise is subjective. I’ll say this; I’ve ridden on many all terrain and mud terrain tires. These are a little louder than the Falken Wildpeak MT01 I previously used, but they’re also nearly 30 pounds lighter. I can comfortably ride long distances, place phone calls, speak at a normal volume and listen to my music quietly and not have a single complaint about noise levels. These perform extremely well on road, I love that they’re a load range D so a more compliant ride, and they just crush off road. I would absolutely buy these again right now if I needed a new set. They also look tough, since that does matter to me and others.
Review: Wear well. 45,000+mile review. - Used on a built Jeep Rubicon overlander. I run these tires really hard when I spends weeks at a time on rocky trails in CO and Utah. Brutal stuff, have taken chunks out of the treads and still wear well. I'm at the end of their lives, winter is approaching and I just finished a 8,500 mile overlanding trip. They will start to be noticeably louder at about the 50% wear rate. Still not too terrible, just a nice hum. They have started cupping a bit, regardless if I'm watching psi or not, but I'm over 45,000 miles. The wear was good for 32-34 psi. They fluctuate so much with road heat anyway. Side walls held up to lots of rocks, boulders and abuse. I will definitely by again.

## Features

- LARGE SURFACE AREA TREAD BLOCKS: Helps provide increased grip on and off-road.
- AGGRESSIVE UPPER SIDEWALL DESIGN: Aggressive, deep “side biter” design helps increase off-road traction, and sidewall abrasion resistance.
- ANGLED SHOULDER SCALLOPS: The scallops help provide mud traction by creating a “mud-scoop” effect.
- PROVEN 2-PLY CARCASS CONSTRUCTION: The MXTTM carcass design is tried-and-true technology that’s been performing in the market for decades.
- STONE EJECTOR RIBS: Built in stone ejector ribs in the base of the grooves provide added resistance to stone capture and stone drilling.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00MY0RPDO |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #1,635,209 in Automotive ( See Top 100 in Automotive ) #3,263 in Light Truck & SUV All-Terrain & Mud-Terrain Tires |
| Brand | MASTERCRAFT |
| Construction Type | Radial |
| Customer Reviews | 4.7 4.7 out of 5 stars (59) |
| Date First Available | August 21, 2014 |
| Is Discontinued By Manufacturer | No |
| Item Diameter | 34.49 Inches |
| Item Weight | 56.4 pounds |
| Item model number | 90000020206 |
| Load Capacity | 3195 Pounds |
| Manufacturer | Mastercraft |
| Manufacturer Part Number | 246394 |
| Maximum Pressure | 50 Pound per Square Inch |
| Model | COURSER MXT |
| OEM Part Number | 90000020206 |
| Rim Width | 9.5 Inches |
| Section Width | 315 Millimeters |
| Size | LT315/70R17 |
| Special Features | tread_wear_indicator |
| Tire Diameter | 34.49 inches |
| Tread Depth | 19.5 32nds |
| Tread Type | Directional |
| Unit Count | 1.0 Count |
| Vehicle Tire ISO Metric Size Description | LT315/70R17 |

## Product Details

- **Brand:** MASTERCRAFT
- **Load Capacity:** 3195 Pounds
- **Load Index:** 121.0
- **Rim Size:** 17 Inches
- **Section Width:** 315 Millimeters
- **Size:** LT315/70R17
- **Speed Rating:** Q
- **Tire Aspect Ratio:** 70.0
- **Tread Depth:** 19.5 32nds
- **Tread Type:** Directional

## Images

![Mastercraft Courser Mxt LT315/70R17 D 121 Q Tire - Image 1](https://m.media-amazon.com/images/I/61so-cLr9jL.jpg)
![Mastercraft Courser Mxt LT315/70R17 D 121 Q Tire - Image 2](https://m.media-amazon.com/images/I/711ZFwc9eML.jpg)
![Mastercraft Courser Mxt LT315/70R17 D 121 Q Tire - Image 3](https://m.media-amazon.com/images/I/71CFZvuOjNL.jpg)
![Mastercraft Courser Mxt LT315/70R17 D 121 Q Tire - Image 4](https://m.media-amazon.com/images/I/71E8snmpYgL.jpg)
![Mastercraft Courser Mxt LT315/70R17 D 121 Q Tire - Image 5](https://m.media-amazon.com/images/I/71PgzeyeSxL.jpg)

## Questions & Answers

**Q: what ply are these tires?**
A: I have 35x12.5x17 and they are and 8 ply

**Q: how many miles road miles ?**
A: I have over 40,000 on mine and have about 1/2 tread left. I have rotated them every 5,000 miles also.

**Q: What wheel width is recommended? I plan to run the on stock Jeep Rubicon rims that are about 7.5 wide**
A: According to the Mastercraft recommendations 8.5-11 inch wheel for a 35x12.50R17. I am running mine on an 8 inch wide wheel and they are great. I'm not sure that I would run them on a 7.5" wheel.

**Q: Are these tires good in snow ?**
A: Yes

## Customer Reviews

### ⭐⭐⭐⭐⭐ Performs well beyond price point
*by B***M on December 28, 2021*

I purchased these for my Lexus GX460 build in a 315/70-17 (35x12.5). Without knowing much about Mastercraft, I always shrugged them off as a budget brand, low quality tire. I was wrong. Research shows this is a Cooper designed tire manufactured in Cooper facilities. Quality is not an issue at all. It should be noted they are a 2-ply sidewall instead of 3-ply. While this matters to some people, I can tell you this has not been an issue for me at all or the many, many Jeep owners who’ve put these tires through their paces. These tires are light weight (63.3 pounds on my scale), they wear well after 7,000 miles and they’re very much what I would consider quite. These are aggressive mud terrains. They make noise and noise is subjective. I’ll say this; I’ve ridden on many all terrain and mud terrain tires. These are a little louder than the Falken Wildpeak MT01 I previously used, but they’re also nearly 30 pounds lighter. I can comfortably ride long distances, place phone calls, speak at a normal volume and listen to my music quietly and not have a single complaint about noise levels. These perform extremely well on road, I love that they’re a load range D so a more compliant ride, and they just crush off road. I would absolutely buy these again right now if I needed a new set. They also look tough, since that does matter to me and others.

### ⭐⭐⭐⭐⭐ Wear well. 45,000+mile review.
*by T***C on September 21, 2023*

Used on a built Jeep Rubicon overlander. I run these tires really hard when I spends weeks at a time on rocky trails in CO and Utah. Brutal stuff, have taken chunks out of the treads and still wear well. I'm at the end of their lives, winter is approaching and I just finished a 8,500 mile overlanding trip. They will start to be noticeably louder at about the 50% wear rate. Still not too terrible, just a nice hum. They have started cupping a bit, regardless if I'm watching psi or not, but I'm over 45,000 miles. The wear was good for 32-34 psi. They fluctuate so much with road heat anyway. Side walls held up to lots of rocks, boulders and abuse. I will definitely by again.

### ⭐⭐⭐⭐ Great tire for the cost
*by J***S on April 22, 2022*

The tires did great on my dually and my Colorado but the eventually get noisy

## Frequently Bought Together

- Mastercraft Courser Mxt LT315/70R17 D 121 Q Tire
- Rough Country Black Steel 15x8 | 5x5.5 | -19mm-RC51-5885 Wheel with Painted and Center Cap is Not Included (15 x 8. inches /5 x 5 inches, -19 mm Offset)
- Goodyear Wrangler TrailRunner AT 235/75R15, Radial

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*Product available on Desertcart Peru*
*Store origin: PE*
*Last updated: 2026-01-26*