MRT Machine Gunner 15x7 UTV Beadlock Wheel, Black/Machined (5x114.3)

Stock wheels bend, dent and lose air when you run low pressure in rocks and sand. A beadlock wheel clamps the tire bead between the wheel and an outer ring, so you can air down for traction without the tire peeling off the rim. The MRT Machine Gunner 15x7 UTV Beadlock Wheel, Black/Machined (5x114.3) (part MG157511452BM) comes from MRT, a maker of UTV wheels and wheel accessories.

Shop more in our UTV and ATV wheels collection.

Why Choose the MRT Machine Gunner 15x7 UTV Beadlock Wheel, Black/Machined (5x114.3)

Key Features

• 15x7 beadlock wheel, about 19 lb, per MRT
• 3-piece forged billet aluminum, per MRT
• Multi-layer machining with machined windows and a deep face profile
• Reinforced beadlock ring holds the tire bead at low pressure
• 1,600 lb load rating, per MRT
• Works with OEM/factory lug nuts; center caps sold separately

Great For

• Rock crawling, dunes and desert running
• Airing down for traction
• Upgrading from stock steel or cast wheels

Specifications

• Brand: MRT
• Part number(s): MG157511452BM
• (verify per wheel)
• Size: 15x7
• Weight: 19 lb (per MRT)
• Load rating: 1,600 lb (per MRT)
• Bolt pattern: 5x114.3
• Offset / backspacing: +32 mm; 4+3
• Construction: 3-piece forged billet aluminum, beadlock
• Finish: Black/machined

Fitment

Wheels fit by bolt pattern, center bore, offset and size, not by a model list. Check your machine’s bolt pattern and hub bore, and make sure the offset and backspacing clear your brakes, A-arms and steering. Wider or lower-offset wheels push the tire out and change your track width. Not sure? Contact us with your year, make and model, and we’ll confirm.

How to Choose UTV Wheels

• Bolt pattern: Match it exactly (for example 4x156, 4x137 or 5x114.3).
• Offset and backspacing: More backspacing tucks the wheel in; less pushes it out for a wider stance.
• Load rating: Pick a rating above your machine’s weight per corner, plus passengers and cargo.
• Beadlock vs. standard: Beadlocks hold the bead at very low pressure; they need regular ring-bolt checks.
• Accessories: Add center caps and matching lug nuts to finish the build.

Installation Tips

1. Mount the tire and torque the beadlock ring bolts in a star pattern, in stages, to MRT’s spec.
2. Inflate and check for leaks around the ring.
3. Lift the machine safely and remove the stock wheel.
4. Clean the hub face and check the studs.
5. Mount the wheel and torque the lug nuts in a star pattern to your machine’s spec.
6. Recheck lug nuts and ring bolts after the first ride.

Care and Maintenance

• Wash wheels with mild soap; avoid harsh acids on machined finishes.
• Check beadlock ring bolts and lug nuts before every ride.
• Inspect for bends or cracks after hard hits.
• Run the tire pressure recommended for your terrain.

Related MRT Products

• MRT Tail Gunner 15x7 UTV Beadlock Wheel, Black/Machined
• MRT Center Cap for Tail Gunner Gen 2 & Machine Gunner Wheels
• MRT Muscle Wheel Splined Lug Nut Kit, 12x1.50, Black (20 with Key)
• MRT Muscle Max UTV Beadlock Wheel, 15x7 & 15x10 (5x114.3)

Shop More

• UTV, Side by Side & ATV Wheels & Beadlock Wheels
• UTV Wheel Caps, Spacers & Studs
• UTV & ATV Tire Changing & Wheel Tools

Helpful Guides From the Witchdoctors Blog

• The Ultimate Buyer’s Guide to UTV & ATV Tires, Wheels & Valve Stems
• Polaris Tech Tip: The Benefits of Carrying a Spare Tire

Frequently Asked Questions

Will it fit my UTV?

Match the bolt pattern, center bore and offset above to your machine. Contact us with your year and model, and we’ll confirm.

Do I need special lug nuts?

MRT says it works with OEM/factory lug nuts.

Is it sold individually?

The listing doesn’t say; contact us to confirm whether the price is per wheel.

Do beadlocks need maintenance?

Yes. Check the ring bolts regularly and after hard riding.

Can I return it?

Unmounted wheels in new condition can usually be returned. Contact our customer service team, and we’ll help.

Where to Ride

Air down and hit one of these off-road parks:

• Black Mountain Off-Road Adventure Area (Evarts, Kentucky): about 150 miles of trails on Kentucky's highest mountain
• Ride Royal Blue (Pioneer, Tennessee): a base camp for the 900+ mile North Cumberland trail network

Order the MRT Machine Gunner 15x7 UTV Beadlock Wheel, Black/Machined (5x114.3) Today

Add it to your cart, and Witchdoctors will get it moving. Questions about fitment? Contact our team, and we’ll help.

Shipping

Qualifying Retail orders $159.99 or more will receive free ground shipping. Free Shipping Terms and conditions.

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Returns

If your order arrives and it is not right, we will we'll fix it. We promise!

Doesn't fit or just not happy with it? You can return any new, unopened, unused or unaltered item within 30 days of delivery receipt of your item. We will issue a refund to your original payment method.

See our full Return Policy for all of the pertinent details.