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Mammoth Boulder Black 15x8 Wheel & BFG KM2 35x12.5- 15 Tire Kit (87-06 Jeep Wrangler YJ & TJ)

ExtremeTerrain no longer carries the Mammoth Boulder Black 15x8 Wheel & BFG KM2 35x12.5- 15 Tire Kit (87-06 Jeep Wrangler YJ & TJ). Please check out Jeep Wheel & Tire Kits for an updated selection.

Features & Details

  • (4) 15x8 Matte Black Mammoth 4x4 Boulder
  • (4) 35x12.50R15LT BF Goodrich Mud-Terrain T/A KM2
  • Mounting & Balancing Available
  • Free Nitrogen Fill
  • Optional 5th Wheel Available
  • Fits 1987 to 2006 TJ and YJ Jeep Wranglers
  • Road Hazard Protection Plan Available
Easy "One Click" Shopping. This wheel and tire combo kit features (4)15x8 Matte Black Mammoth 4x4 Boulder wheels and (4) BF Goodrich Mud-Terrain T/A KM2 35x12.50R15LT tires that have been put together into an easy "one click" to buy combo kit. An optional (5) wheel and tire kit is also available, see drop down option above.

Recommended 5th Wheel Upgrade. When increasing the rolling diameter of your Jeep Wranglers tires it is recommended to upgrade your spare tire at the same time as the factory spare may be too small to be used. And besides a big meaty spare looks intimidating on the back of your Wrangler.

Matte Black Mammoth 4x4 Boulder. Upgrade your Jeep with the Mammoth 4x4 Boulder Black Wheel from ExtremeTerrain. This Mammoth 4x4 wheel features classic Wrangler styling with an aggressive spin made to take on the trail. Specific to your Wrangler, it features a hub centric design to provide the reliability you need on the highway or off the paved path for a bold look no matter where your tire tracks end.Completed in a durable matte black 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.

35x12.50R15LT BF Goodrich Mud-Terrain T/A KM2. BF Goodrich Mud Terrain T/A KM2 is the end all in off road capability. You'll never doubt traction on the trail with this tire's aggressive side wall lugs and self cleaning dual compound tread design. Your Wrangler will conquer climbs and pits and any obstacle with BF Goodrich's linear flex zone which allows this tire to conform to obstacles and grab the trail during aired-down crawling and driving. TriGard 3-ply construction and a chip resistant compound protect this tire from any trail hazards you run into, including cuts from rocks or boulders.

Application. This 15x8 Matte Black Mammoth 4x4 Boulder wheel and 35x12.50R15LT BF Goodrich Mud-Terrain T/A KM2 Fits 1987 to 2006 TJ and YJ Jeep Wranglers.

Fitment: 1987 1988 1989 1990 1991 1992 1993 1994 1995 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 Details

Mounting & Balancing ExtremeTerrain offers professional mounting and balancing on all wheels and tires when purchased together on the same order for an additional fee. 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+ 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 free of charge!

  • 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.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

What's in the Box
  • (4) Wheels
  • (4) Center Caps
  • (4) Tires
Installation Info
Tech Specs

Wheel Specifications:

Manufacturer: Mammoth 4x4 Style: Boulder
Size: 15x8 Finish: Matte Black
Backspacing: 3.7" (95mm) Offset: -19mm (-0.7")
Load Capacity: 1521 lbs (690 kg) Bolt Pattern: 5x4.5" (5x114.3)
Weight: 19.1 lbs Material: Aluminum

Tire Specifications:

Manufacturer: BF Goodrich Style: Mud-Terrain T/A KM2
Size: 35x12.50R15LT / 318/80/15 Tread Type: Mud Terrain
Sidewall Color: Optional Black or White Max Load: 2535 lbs
Weight: 60.9 lbs Tread Depth in 32nds: 20
Will it fit my Wrangler?
  • TJ Rubicon 2 Door - 03, 04, 05, 06
  • TJ Rubicon Unlimited 2 Door - 05, 06
  • TJ Wrangler 2 Door - 97, 98, 99, 00, 01, 02, 03, 04, 05, 06
  • TJ Wrangler Unlimited 2 Door - 04, 05, 06
  • YJ Wrangler 2 Door - 87, 88, 89, 90, 91, 92, 93, 94, 95

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Questions & Answers (19)

5 Top Rated Questions

I have a 2005 Unlimited with my factory rims I can not use 33x12.5x15 because the rear rub. Will these space it out enough so that I can upgrade my tires also?

  • Hello, yes, this wheel will space out enough so you will not have any issues with rubbing.

Helpful (1)

The center cap on the wheels, is it a standard size? I’m actually interested in purchasing some black Jeep logo center caps. Would the size be the same? Or are they specific to the brand?

  • The center caps for these wheels are specifically designed for Mammoth Boulder wheels. We cannot guarantee fitment of these center caps on other wheels.

Helpful (0)

Do the wheels come with center caps or do you have to purchase those separately?

  • These wheels will come with the center caps.

Helpful (0)

I have a 2003 TJ with a 2.5” lift kit. Will these fit?

  • Yes, the Mammoth Boulder Black 15x8 Wheel & BFG KM2 33x10.5- 15 Tire Kit will work with a 2.5" lift.

Helpful (0)

What is the backspacing in inches on these wheels? Going to put it on in 1987 wrangler.

  • These wheels have a 3.7" backspacing.

Helpful (0)
Post Your Question
10 More Questions
Is it possible to get the Mammoth Boulder Black rims 15x8 with BFGoodrich All-Terrain T/A KO2 33x12.50R15? I don't see this setup in the kits and it's specifically what I'm looking for. How do I set up this package? 1 answer
What are the offset for these wheels.. 1 answer
I have a 2008 JKU Sahara with stock rims. Can I pair these rims with 33x12.50 BFG TAs without spacers or any modifications? 1 answer
will this fit 30x9.5 tire 1 answer
do lug nuts come with wheels ? 1 answer
I want to put 32x11.5 mud tires on these wheels. Will they fit on the stock spare tire carrier? 1 answer
can you put a high lift mount on the rear spare tire 1 answer
What’s the center bore size of these wheels 1 answer
Will these fit a 1999 Jeep Wrangler Sport that is slightly lifted? 1 answer
Can you get different center caps logo color? I would prefer the Mammoth logo to not be white. I like the logo but maybe grey or something. 1 answer

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Customer Reviews (69) Write a Review

Overall Rating 4.9

out of 5 stars

  • Finish 4.941176 4.9
  • Appearance 4.941176 4.9
  • Quality 4.926471 4.9
  • Bang For Your Buck 4.941176 4.9



  • 5/5

    April 17, 2019

    Review from Mammoth Boulder Matte Black Wheel - 15x8 -19mm Offset (87-06 Jeep Wrangler YJ & TJ)

    Perfect Fit! Love the look!

    The guys at ET were great with their advise, and the shipment and timing were perfect. They are my go to for my TJ!

    GreatWheels

    Year: 2001Submodel: Wrangler

    Helpful (0)

  • 5/5

    April 06, 2019

    Review from Mammoth Boulder Matte Black Wheel - 15x8 -19mm Offset (87-06 Jeep Wrangler YJ & TJ)

    Great looking rims

    Put these on my 2002 TJ, look absolutely fantastic, especially with black acorn lug nuts. Price was very reasonable. Highly recommend these rims.

    PaulT

    Year: 2002Submodel: Wrangler

    Helpful (0)

  • 5/5

    March 03, 2019

    Review from Mammoth Boulder Matte Black Wheel - 15x8 -19mm Offset (87-06 Jeep Wrangler YJ & TJ)

    Great wheels

    These look amazing! Great wheels for the money! They completely changed the look of my TJ and I love it!

    Connor

    Year: 2005Submodel: Wrangler

    Helpful (0)

  • 5/5

    February 16, 2019

    Review from Mammoth Boulder Black 15x8 Wheel & Mickey Thompson Baja MTZ 33X12.50R15 Tire Kit (87-06 Jeep Wrangler YJ & TJ)

    Great looking tires!

    Arrived intact with no visible bruises from shipment. Wheels look awesome on my 94 YJ! Great price for 5 tires/wheels. I had 31x10.5 before, added 4.5 inch lift and these bad boys and get complimented/looked at all around town. Love the look and the backspacing/offset of these are perfect for giving it a beefy look without going to 35s. I will caution that the 5th spare won’t likely fit on your original hardware.

    Jason

    Year: 1994Submodel: Wrangler

    Helpful (2)

  • 5/5

    February 10, 2019

    Review from Mammoth Boulder Matte Black Wheel - 15x8 -19mm Offset (87-06 Jeep Wrangler YJ & TJ)

    Rims

    We bought these rims and it really transformed the look of my 1997 Jeep Wrangler. I love em!!

    LorrieG

    Year: 1997Submodel: Wrangler

    Helpful (2)

  • 5/5

    February 09, 2019

    Review from Mammoth Boulder Matte Black Wheel - 15x8 -19mm Offset (87-06 Jeep Wrangler YJ & TJ)

    Mammoth Boulder Wheels

    Product is exactly as described so glad I went with these wheels! Shipping was fast and the way they packaged these wheels is excellent!

    SteveN

    Year: 2001Submodel: Wrangler

    Helpful (2)

  • 5/5

    January 16, 2019

    Review from Mammoth Boulder Matte Black Wheel - 15x8 -19mm Offset (87-06 Jeep Wrangler YJ & TJ)

    Great wheels on a YJ

    These wheels look great on a YJ. I don't think you can find a better deal. Service was fast with quick delivery.

    EricS

    Year: 1994Submodel: Wrangler

    Helpful (3)

  • 5/5

    January 16, 2019

    Review from Mammoth Boulder Matte Black Wheel - 15x8 -19mm Offset (87-06 Jeep Wrangler YJ & TJ)

    ‘97 TJ

    The quality, the way they look and the price makes my TJ look so much better than before.

    JaredB

    Year: 1997Submodel: Wrangler

    Helpful (4)

  • 5/5

    January 14, 2019

    Review from Mammoth Boulder Matte Black Wheel - 15x8 -19mm Offset (87-06 Jeep Wrangler YJ & TJ)

    Awesome all around

    Great shipping speed, the wheels came in with great packaging not a single one had any damage on them at all. They look great and are super light

    TrevorL

    Year: 1999Submodel: Wrangler

    Helpful (4)

  • 5/5

    January 01, 2019

    Review from Mammoth Boulder Matte Black Wheel - 15x8 -19mm Offset (87-06 Jeep Wrangler YJ & TJ)

    Great wheels

    Great fit, look great, no balancing issues, nice finish. Would recommend!

    TommyL

    Year: 2001Submodel: Wrangler

    Helpful (5)

  • 5/5

    December 24, 2018

    Review from Mammoth Boulder Matte Black Wheel - 15x8 -19mm Offset (87-06 Jeep Wrangler YJ & TJ)

    mammoth wheels

    Best wheel for the money. Shipping was fast perfect purchase.

    Tina

    Year: 2004Submodel: Rubicon

    Helpful (6)

  • 4/5

    December 22, 2018

    Review from Mammoth Boulder Matte Black Wheel - 15x8 -19mm Offset (87-06 Jeep Wrangler YJ & TJ)

    Nice

    The wheels came pretty quickly, even coming from two locations. Great wheel for the price, looks nice, open design easy to clean. Did not buy as a wheel/tire set as already had new studded snows. One wheel took alot of weight to balance, 8.75 , which is alot on a 15 inch rim. It did need alot of weight to balance, possibly a manufacture tolerance issue, I'm sure I could have gotten a different rim if I wanted. Over all, happy with the wheels and would go with the same wheels again. Not paying the high prices that most wheels cost, especially with the road salts that are used in the winter.

    DavidC

    Year: 1999Submodel: Wrangler

    Helpful (6)

  • 5/5

    December 11, 2018

    Wheel and Tire package

    Super happy with both wheels and tires, first two arrived on a sat then received the other two the following mon. Installed myself, only took about an hour or so by myself to get them all on. This is my daily driver and I live in the PNW where we get a lot of rain and these tires perform awesome on the freeway. Tires and wheels are balanced perfect and love the way the set up looks.

    Wdarby55

    Year: 2004Submodel: Wrangler

    Helpful (7)

  • 5/5

    November 22, 2018

    Review from Mammoth Boulder Matte Black Wheel - 15x8 -19mm Offset (87-06 Jeep Wrangler YJ & TJ)

    Love them!

    Purchased these last month and absolutely love the look and make of them. Exactly what I was looking for!!

    OliviaP

    Year: 2004Submodel: Wrangler

    Helpful (8)

  • 5/5

    November 19, 2018

    Review from Mammoth Boulder Matte Black Wheel - 15x8 -19mm Offset (87-06 Jeep Wrangler YJ & TJ)

    Awesome Wheels

    Looks great, easy to clean, best deal out there, would definitely recommend.

    JasonF

    Year: 2006Submodel: Wrangler

    Helpful (8)

  • 4/5

    October 07, 2018

    Review from Mammoth Boulder Matte Black Wheel - 15x8 -19mm Offset (87-06 Jeep Wrangler YJ & TJ)

    Great looking wheels.

    Lots of looks and compliments. Shipping was very quick. Would recommend.

    Bradb

    Year: 1995Submodel: Wrangler

    Helpful (7)

  • 5/5

    September 19, 2018

    Review from Mammoth Boulder Matte Black Wheel - 15x8 -19mm Offset (87-06 Jeep Wrangler YJ & TJ)

    Mammoth Boulder Wheels

    The wheels are mounted on the tires and look unbelievable, not mounted on my Jeep as I’m still working on the underside. I will follow up with pictures as soon as I can.

    JT

    Year: 1989Submodel: Wrangler

    Helpful (7)

  • 5/5

    June 29, 2018

    Review from Mammoth Boulder Black 15x8 Wheel & Mickey Thompson Baja MTZ 33X12.50R15 Tire Kit (87-06 Jeep Wrangler YJ & TJ)

    Great Tire and Great Price

    Just had these tires placed on our 95 YJ after 4 inch lift was installed. Black rims go well with the blue color of our Jeep. Ride nicely and not too loud when driving as well. When comparing these tires to other sites this was a great price and customer service was very helpful in helping to decide if 33s were the right size based upon the type of lift being installed. We get many compliments!

    Alyson

    Year: 1995Submodel: Wrangler

    Helpful (8)

  • 5/5

    June 25, 2018

    Review from Mammoth Boulder Matte Black Wheel - 15x8 -19mm Offset (87-06 Jeep Wrangler YJ & TJ)

    Wheel

    Looks and fits great with my 12.5 wide goodyear wrangler duratrac tire

    KyleB

    Year: 2004Submodel: Rubicon

    Helpful (9)

  • 5/5

    June 21, 2018

    Review from Mammoth Boulder Matte Black Wheel - 15x8 -19mm Offset (87-06 Jeep Wrangler YJ & TJ)

    A world of difference!

    Installed these on my Solar Yellow Jeep Wrangler which seriously upgraded the look compared to the stock rims.

    LR

    Year: 2002Submodel: Wrangler

    Helpful (8)

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