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Mammoth Boulder Charcoal Wheel; 17x9 (18-20 Jeep Wrangler JL)

Item J100615-JL
How to Get Wheels & Tires on Your 2018-2020 Wrangler JL
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Market Price $179.99 You Save 28% ($50.00)
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$129.99 (each)

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2018-2020 Wrangler JL

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Ship to: Ashburn - 20149
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      Product Information

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


      • Mammoth Boulder Wheel
      • Aggressive Five Spoke Styling
      • Matte Charcoal Finish
      • Hub Centric Design
      • One Piece Aluminum Construction
      • Size: 17 x 9
      • Bolt Pattern: 5 x 5-inches (5 x 127mm)
      • Offset: -6mm; Backspacing: 4.7-inches
      • Sold Individually
      • Fits All 2018-2020 Jeep Wrangler JL Models


      Boulder. The Mammoth Boulder Charcoal Wheel is an immediate and important upgrade to the factory wheels on your Jeep Wrangler. With its hub-centric design, charcoal finish and aluminum construction, the Mammoth Boulder Wheel will give you a rugged, stylish and safe wheel.

      Charcoal Finish. Completed in a durable charcoal powder coat for a rugged off road appearance, this Mammoth 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 center cap for complete aggressive styling whether you're on the trail or cruising the highway.

      Aluminum Construction. Cast from aluminum, this Mammoth Boulder Charcoal 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 1,521 lbs.

      Application. This Mammoth Boulder Charcoal Wheel fits all 2018-2020 Jeep Wrangler JL models including Unlimited and Rubicon models. Sold individually.

      Mammoth 4x4

      Fitment: 2018 2019 2020

      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.

      Mammoth J100615-JL

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (78)

      Write a Review

      Ratings Summary

      4.8 out of 5 overall rating from 78 customers

      • May 12, 2020

        Review shared from Mammoth Boulder Charcoal Wheel - 17x9 (07-18 Jeep Wrangler JK)

        4 2009 Wrangler - Jacob

        great for the money

        really good finish looks great, the wider wheels helps with off reading a little. the only complaint I have is they are not balanced very well so it takes a lot of weights even them out.

        Helpful (0)
      • May 12, 2020

        Review shared from Mammoth Boulder Charcoal Wheel - 17x9 (07-18 Jeep Wrangler JK)

        5 2013 Wrangler - PhilK

        Simple low cost aesthetic and fictional upgrade

        As far as I'm concerned one of the bang for your buck upgrades. They look good and gave our jeep a better stance for the light trail exploring we do.

        Helpful (0)
      • March 24, 2020

        Review shared from Mammoth Boulder Charcoal Wheel - 17x9 (07-18 Jeep Wrangler JK)

        5 2008 Wrangler - ChrisL

        Really Like the Look of these wheels !!

        Really like the look of these Mammoth wheels in the charcoal color was considering the AEV wheels but these are high quality product at half the price !!!!

        Helpful (0)
      • February 28, 2020

        5 2019 Rubicon - SteveC

        Rubicon Wheels

        The Mammoth Boulder wheel really gave my new 19 Rubicon that clean solid look that a Jeep should have. Wheels with mounted tires and sensors arrived on time and ready to install.

        Helpful (0)
      • October 07, 2019

        Review shared from Mammoth Boulder Charcoal Wheel - 17x9 (07-18 Jeep Wrangler JK)

        5 2009 Wrangler - DonaldH

        Best Bang for your Buck!!

        I absolutely love these wheels! I thought I was just kind of going on the cheap for a decent looking wheel, but they are awesome! I couldn’t tell you how many compliments I get on these wheels, and they look incredible. The pictures don’t do them justice! You won’t be sorry if you decide to install them on your Jeep!!

        Helpful (3)
      • September 29, 2019

        5 2018 Wrangler - JBH

        Great wheels

        I was hesitant on purchasing these wheels at first. I took a couple of weeks to make the decision on purchasing them. I wish I had not waited because these wheels look great in person. The color looks real nice on my white jeep.

        Helpful (3)
      • August 02, 2019

        Review shared from Mammoth Boulder Charcoal Wheel - 17x9 (07-18 Jeep Wrangler JK)

        5 2015 Wrangler - jws

        i'm a fan.

        solid construction, fast delivery time, and a very cool (non-black) look. i wanted something a little different, as everyone here has black wheels, and i've been very pleased with the overall performance and style of this rim. highly recommended.

        Helpful (1)
      • August 01, 2019

        5 2019 Rubicon - JoeT

        17x9 Mammoth Wheel

        Awesome wheel love the look and at a great price point.

        Helpful (1)
      • July 08, 2019

        Review shared from Mammoth Boulder Charcoal Wheel - 17x9 (07-18 Jeep Wrangler JK)

        5 2018 Wrangler - Edp

        Mamouth boulder

        Nice finish and matches my granite Crystal exterior perfectly

        Helpful (2)
      • April 11, 2019

        Review shared from Mammoth Boulder Charcoal Wheel - 17x9 (07-18 Jeep Wrangler JK)

        5 2016 Wrangler - Coulton


        This picture doesn’t give the wheels justice, these wheels are really cool and look great on my black wrangler.

        Helpful (1)

      Questions & Answers (24 answers)

      5 Top Rated Questions

      Will P255/R75/17 tires fit on this wheel?

      • Hello, yes, you will be able to install your P255/75 R17 Tires on these wheels.

      Helpful (12)

      Planning on putting a Teraflex Sport ST1 1.5" Suspension Lift on my 2016 Sport S with 17x9 Mammoth wheels 295/70 R17 tires. My question is will this change the backspacing and offset to a point it will have a negative effect on the handling/drive-ability of the vehicle?

      • These wheels are pushed out further to provide a greater level of stability on a lifted Wrangler. If you lifted the Wrangler without going with aftermarket wheels, you'd feel a lot more top-heavy on turns.

      Helpful (3)

      Do you have charcoal touch up paint available for the Mammoth Boulder wheels?

      • At this time we do not offer touch up paint for any of our wheels.

      Helpful (3)

      Will this fit a 33” tire? 305/65/17?

      • Yes, a 305/65R17 will fit on this 17x9 wheel.

      Helpful (3)

      How much does the 17x9 wheel weigh?

      • The 17x9 wheel weighs 26 pounds.

      Helpful (2)
      10 More Questions
      Can I run 35x12.5x17 tires on this wheel without wheel spacers and with a 2.5" RC lift? 1 answer
      Can I run 35x12.5x17 tires on this wheel with a 2.5" RC lift? 1 answer
      The wheels are listed as hub-centric. But in one of the answers calls for a hub-centric wheel spacer for use with stock lug nuts. Just for good measure can you give us the hub diameter of this wheel, please? For JKs, the axle diameter is 71.5mm, so hub diameter has to match that width to be hub-centric. 1 answer
      What lug nuts do you need for these wheels? And, since they are hub-centric, does that matter when considering options for Wheel Spacers? 1 answer
      what is the back spacing and offset? my factory wheel is Factory wheel = 17x7.5" with 44.45 offset (6.1" backspace) with a 11” wide tire. I want to move up to a 12.5 tire and need clearance. Jeep says 35”x12.5 tire will clear with less back spacing. Looking for 5 to 4.5 1 answer
      What is the backspacing and offset of this wheel? 1 answer
      I have a 2016 Sport S with a TeraFlex S/T1 Suspension System. Will mammoth 17 X 9 wrapped in 295/70/r17 fit or will I need to use wheel spacers? Height wise it measures out to work, just not sure with the width and offset backspacing. Any thoughts appreciated first build. 1 answer
      What wheel lug nuts would match with this rim? Any suggestions? 1 answer
      Will these (17x9) fit with a P285/70/R17 tire on the OEM spare tire mount? 1 answer
      Hi, do I receive the necessary documents with this wheel? In Germany I need confirmation of Impact test, Bending test, Capacity Roll test / circulation test for technical acceptance? 1 answer

      Installation & What's in the Box

      What's in the Box

      • (1) Wheel
      • (1) Center Cap

      Tech Specs

      Wheel Specifications:

      Manufacturer:Mammoth 4x4Style:Boulder
      Backspacing:4.7" (121mm)Offset:-6mm (-0.2")
      Load Capacity:1521 lbs (690 kg)Bolt Pattern:5x5"
      Weight:22.1 lbsMaterial:Aluminum