Free Shipping on Orders Over $75. Details

Talk to Wrangler Enthusiasts
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Win $15,000!! Enter Now

Mammoth Boulder Charcoal Wheel; 15x8 (87-95 Jeep Wrangler YJ)

Item J100612-YJ
How to Get Wheels & Tires on Your YJ Wrangler
Call a Wrangler Enthusiast at 1-877-870-8556
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Market Price $133.99 You Save 14% ($19.00)
Our Price

$114.99 (each)

FREE Shipping

Will this fit your Vehicle?

Select a different vehicle Help?
Update or Change Vehicle
1987-1995 Wrangler YJ

Popular Tire Sizes for this Wheel

Item Options

In Stock  

Ship to: Ashburn - 20149
Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • Aggressive Five Spoke Styling
      • Charcoal Powder Coat Finish
      • Hub Centric Design
      • One Piece Aluminum Construction
      • 15x8 - 5x4.5 Bolt Pattern
      • Fits 1987-1995 Jeep Wrangler YJ Models


      Aggressive Styling. Upgrade your Jeep with the Mammoth 4x4 Boulder Charcoal Wheel from ExtremeTerrain. This Mammoth 4x4 wheel features classic Wrangler styling with an aggressive flare made to take on the outdoors. It's hub centric design provides the reliability you need on the highway and trail for a bold look no matter where your tire tracks end.
      Aluminum Construction. Cast from aluminum, this wheel features a one piece design for superior strength without extra weight. Made to accommodate the variety of tasks your Wrangler takes on, this wheel's load capacity is 1521lbs.

      Charcoal Finish. Completed in a durable charcoal powder coat for a rugged off road appearance, this Mammoth 4x4 wheel is the perfect addition for the Jeeper looking for a custom styled wheel without a daunting price tag.  It comes complete with a matching Mammoth 4x4 center cap for complete aggressive styling whether you're on the trail or cruising the highway.

      Application. This 15x8 Mammoth 4x4 Boulder Charcoal Wheel fits all 1987-1995 Jeep Wrangler YJ models including Unlimited and Rubicon models.

      Mammoth 4x4

      Fitment: 1987 1988 1989 1990 1991 1992 1993 1994 1995

      Mounting & Balancing ExtremeTerrain offers professional mounting and balancing on all wheels and tires when purchased together on the same order. This will allow you to swap out your old wheels for your new set when they arrive.

      • State of the Art On-Site Tire Facility
      • Scratch Free Mounting Process
      • Environmentally Friendly, Lead Free Wheel Weights
      • Free Installation of TPMS Sensors When Purchased on the Same Order (2007+ Jeep Wranglers)
      • 1 to 2 Business Day Turn Around Time on Most Orders

      What is TPMS?The Tire Pressure Monitoring System (TPMS for short) is a factory installed safety feature on all 2007 and newer Jeep Wranglers that alerts you when your tire pressure drops to an unsafe limit.

      How do I keep my TPMS feature?Aftermarket wheels do not come with TPMS sensors. However, if you select 'Add TPMS Sensor’ and your specific year range from the options listed above, we'll install the TPMS Sensors in your new wheels!

      • Save Money! We sell TPMS Sensors and Sensor Kits at a fraction of the price of dealerships
      • Free Installation of TPMS Sensors When Purchased on the Same Wheel and Tire Order
      • Stay Safe - Keeps your Factory Safety Feature Intact
      • No More Warning Light - Lose the annoying dash light that appears when your sensors are missing

      For more Information, check out TPMS Sensor Kits in detail.

      MPN# J100612

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (61)

      Write a Review

      Ratings Summary

      5 out of 5 overall rating from 61 customers

      • January 30, 2020

        5 1992 Wrangler - GregorR


        These wheels gave my jeep a fresh and updated look.. I couldn’t be happier...

        Helpful (0)
      • November 08, 2019

        Review shared from Mammoth Boulder Charcoal Wheel - 15x8 (97-06 Jeep Wrangler TJ)

        5 2000 Wrangler - Jeep2000

        Great buy!

        I am extremely satisfied with my purchase- the wheels allowed me to change the look of my Jeep.

        Helpful (0)
      • November 03, 2019

        5 1994 Wrangler - Annie

        Great Buy

        Very happy with this purchase. Great buy for the price. Looks awesome on the vehicle!

        Helpful (0)
      • October 28, 2019

        Review shared from Mammoth Boulder Charcoal Wheel - 15x8 (97-06 Jeep Wrangler TJ)

        4 2004 Wrangler - Blair

        Still a project!

        There was a small chip on the very outer edge of one of the rims but once the tire was mounted it was no longer visible. Overall I'm very pleased. They look great with the Falken Wildpeak 32's.

        Helpful (0)
      • October 07, 2019

        Review shared from Mammoth Boulder Charcoal Wheel - 15x8 (97-06 Jeep Wrangler TJ)

        5 2002 Wrangler - Thomasc

        Very Nice upgrade

        These wheels are a very nice upgrade. Nice price.

        Helpful (0)
      • September 30, 2019

        Review shared from Mammoth Boulder Charcoal Wheel - 15x8 (97-06 Jeep Wrangler TJ)

        5 2004 Wrangler - Birch


        Love the new wheels. Really changed to look of my Jeep. Very pleased

        Helpful (0)
      • September 29, 2019

        Review shared from Mammoth Boulder Charcoal Wheel - 15x8 (97-06 Jeep Wrangler TJ)

        5 2001 Wrangler - Jeepme

        Boulder wheels

        Bought the 15X8” charcoal wheels for my black TJ. They seem to be high quality and look great on my ride. Very pleased with the wheels and the fast delivery.

        Helpful (0)
      • September 20, 2019

        Review shared from Mammoth Boulder Charcoal Wheel - 15x8 (97-06 Jeep Wrangler TJ)

        5 1997 Wrangler - Samr

        Great product

        They arrived the very next day after I ordered them. They look great and I couldn’t be happier with them

        Helpful (0)
      • May 19, 2019

        Review shared from Mammoth Boulder Charcoal Wheel - 15x8 (97-06 Jeep Wrangler TJ)

        5 1999 Wrangler - Chaes


        Just what I wanted and at a great price. They shipped fast and were well protected in the box.

        Helpful (0)
      • April 15, 2019

        Review shared from Mammoth Boulder Charcoal Wheel - 15x8 (97-06 Jeep Wrangler TJ)

        5 2004 Wrangler Unlimited - Freemanc


        These are nice looking wheels. Great alternative to black which has been overdone in the marketplace.

        Helpful (0)

      Questions & Answers (12 answers)

      5 Top Rated Questions

      The green TJ in the pics displaying the 15X8 wheels...are those 33" tires or 35"?

      • The TJ used in our product photo's of the Mammoth Boulder Charcoal Wheel is using 33" tires.

      Helpful (8)

      If I mount a 33x12.5x15 tire on this wheel, will the 3.7 inches of back spacing be enough to keep the tire from rubbing my control arms or shock mounts while turning? I've heard that anything less than 4 inches of backspacing will work, but I just want to be sure.

      • Yes that will work just fine. We typically say to have at the most, a 4.5 inch backspacing to safely fit a 12.5 inch wide tire, so that 3.7 being lower would work out perfectly.

      Helpful (3)

      Will this work with 32x11.5x15 tires? I have a 2” OMU lift with stock fenders.

      • The 32x11.5x15 tires will work on the 15x8 Mammoth Boulder Charcoal Wheels.

      Helpful (2)

      Do lug nuts come with wheels and tires? If not do any stock wheel lug nuts fit?

      • Thank you for your question! Lug nuts do not come with the wheels and tires, and the stock lugs will work in conjunction with these aftermarket wheels.

      Helpful (2)

      Has anyone used these Mammoth Boulder 15 x 8 wheels with 33 x 12.50 x 15 BFG KO2 tires or similar ? Do they fit the rims okay? Are the tires bowed on the tread surface or do they sit flat? Do you have any pictures? Thanks

      Post Your Question
      7 More Questions
      Will these work with 235/75 R15 tires on a 1999 TJ (SE/ 4cyl) 0 answer
      Will these fit a 1998 ZJ? I believe they have the same offset and bolt pattern as a TJ. 1 answer
      Are these available painted silver? My jeep is black, and I think silver would be a better color combination. 1 answer
      Do these wheels come with the center cap that is shown in the picture above or is this something that is needed to be purchased separately? 1 answer
      Are these rim steel rims with powder coating or aluminum$ 1 answer
      The description on the wheels does not indicate the offset/backspace of the wheel. This is very important when running oversized tires. ??? 1 answer
      I love the look of these wheels but I was wonder if they will work with the spin free locking hub conversion kit from Yukon. I have a 2004 Rubicon and with this manual hub conversion and really want these wheels. Thanks for your reply! 1 answer

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Wheel
      • (1) Center Cap

      Tech Specs

      Wheel Specifications:

      Manufacturer:Mammoth 4x4Style:Boulder
      Backspacing:3.7" (95mm)Offset:-19mm (-0.7")
      Load Capacity:1521 lbs (690 kg)Bolt Pattern:5x4.5" (5x114.3)
      Weight:20.0 lbsMaterial:Aluminum