Home/All Parts/Mayhem/Mayhem Cyclone 8121 Gloss Black 20X9 8-180 0MM 124.1MM 8121-2978GB0

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Mayhem gloss black wheel.

Wheel fitment depends on bolt pattern, offset and centre bore together — all three must match the vehicle.

Use the vehicle selector to confirm your exact year and configuration.

Confirm this fits your vehicle. Use the “Check Fit” selector, or see the Vehicle Compatibility list below for confirmed years, makes and models.

Mayhem

Mayhem Cyclone 8121 Gloss Black 20X9 8-180 0MM 124.1MM 8121-2978GB0

Name: Mayhem Cyclone 8121 Gloss Black 20X9 8-180 0MM 124.1MM 8121-2978GB0
Brand: Mayhem
SKU: MAY8121-2978GB0
Price: 527.99 CAD
Availability: InStock

Professional installation recommended. This part affects how your vehicle handles, steers or carries load. Have it installed by a qualified technician, torqued to the manufacturer's specification, and have the alignment checked afterwards where the manufacturer calls for it.

Part #: MAY8121-2978GB0 In stock

$527.99

Price in CAD. Taxes & shipping calculated at checkout.

Check if it fits your vehicle

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3Year

Special order: ships from the manufacturer or a US warehouse, usually 1-3 weeks. Duties and customs charges are included in shipping.Estimate, not a guarantee — if an order will take longer we contact you before taking payment.

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Fitment verified against manufacturer data.Wrong fit? Return shipping's on us.

Tracked delivery across Canada.

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Fitment Data

Fit info on thousands of parts

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Fits these vehicles

2011–2014 Chevrolet Silverado 3500 HD2011–2027 Chevrolet Silverado 2500 HD2011–2013 GMC Sierra 3500 HD2020–2027 GMC Sierra 3500 HD2011–2014 GMC Sierra 2500 HD2020–2027 Chevrolet Silverado 2500 HD2015–2021 GMC Sierra 2500 HD2011–2027 GMC Sierra 2500 HD

Fitment data is provided as a guide — please verify before purchase.

Vehicle fitment

Verified fitment (manufacturer data)

Years	Make	Model	Trim
2011–2014	Chevrolet	Silverado 3500 HD	LT
2011–2027	Chevrolet	Silverado 2500 HD	WT
2011–2014	Chevrolet	Silverado 3500 HD	WT
2011–2013	GMC	Sierra 3500 HD	SLE
2020–2027	GMC	Sierra 3500 HD	SLE
2011–2027	Chevrolet	Silverado 2500 HD	LT
2011–2014	GMC	Sierra 2500 HD	WT
2011–2027	Chevrolet	Silverado 2500 HD	LTZ
2020–2027	Chevrolet	Silverado 2500 HD	Custom
2015–2021	GMC	Sierra 2500 HD	Base
2011–2027	GMC	Sierra 2500 HD	SLT
2022–2026	GMC	Sierra 3500 HD	Pro
2011–2013	GMC	Sierra 3500 HD	SLT
2020–2027	GMC	Sierra 3500 HD	SLT
2011–2027	GMC	Sierra 2500 HD	Denali
2011–2013	GMC	Sierra 3500 HD	WT
2011–2013	GMC	Sierra 3500 HD	Denali
2020–2027	GMC	Sierra 3500 HD	Denali
2011–2027	GMC	Sierra 2500 HD	SLE
2024–2027	GMC	Sierra 2500 HD	AT4X
2020–2027	GMC	Sierra 2500 HD	AT4
2007	GMC	Sierra 3500 Classic	SLE
2016–2019	Chevrolet	Suburban 3500 HD	LS
2007	GMC	Sierra 3500 Classic	WT
2020–2021	GMC	Sierra 3500 HD	Base
2015–2027	Chevrolet	Silverado 2500 HD	High Country
2020–2027	GMC	Sierra 3500 HD	AT4
2024–2027	GMC	Sierra 3500 HD	Denali Ultimate
2022–2027	GMC	Sierra 2500 HD	Pro
2011–2014	Chevrolet	Silverado 3500 HD	LTZ
2007	GMC	Sierra 3500 Classic	SLT
2016–2019	Chevrolet	Suburban 3500 HD	LT
2007	GMC	Sierra 3500 Classic	SL
2024–2027	Chevrolet	Silverado 2500 HD	ZR2
2024–2027	GMC	Sierra 2500 HD	Denali Ultimate

Check fitment before you order. We publish fitment from manufacturer and industry data and take care with it, but fit can depend on trim, cab and bed configuration, factory options and any modifications already on your vehicle. If you are unsure, contact us before ordering — and if fitment we published turns out to be wrong, we cover the return.

Specifications

Manufacturer data for this part — all visible, no tabs to dig through.

Brand	Mayhem
Part number	MAY8121-2978GB0

Finish	Gloss black
Category	Wheels & Tires

Vehicle Compatibility

Years	Make	Model
2011–2014	Chevrolet	Silverado 3500 HD
2011–Present	Chevrolet	Silverado 2500 HD
2011–2013	GMC	Sierra 3500 HD
2020–Present	GMC	Sierra 3500 HD
2011–2014	GMC	Sierra 2500 HD
2020–Present	Chevrolet	Silverado 2500 HD
2015–2021	GMC	Sierra 2500 HD
2011–Present	GMC	Sierra 2500 HD
2022–2026	GMC	Sierra 3500 HD
2024–Present	GMC	Sierra 2500 HD
2020–Present	GMC	Sierra 2500 HD
2007–2007	GMC	Sierra 3500 Classic
2016–2019	Chevrolet	Suburban 3500 HD
2020–2021	GMC	Sierra 3500 HD
2015–Present	Chevrolet	Silverado 2500 HD
2024–Present	GMC	Sierra 3500 HD
2022–Present	GMC	Sierra 2500 HD
2024–Present	Chevrolet	Silverado 2500 HD