StopTech sto127.42105L SportStop Slotted & Drilled Rear Left Rotor

StopTech Drilled and Slotted Sport Rotors are 1-piece direct replacement brake discs for factory brake systems and stock calipers that look great behind your wheels – and offer significantly improved braking performance. The unique cross-drilling and slotting aids with heat and brake dust dispersal; prevents glazing of the pads; adds bite and improves wet and dry braking performance. Built to last; the black e-coating provides protection from corrosion and the high carbon metallurgy (in most applications) offers quieter operation; better crack resistance and increased performance. Premium e-coated rotor with advanced metallurgy that greatly reduces pad squeal. Especially effective with higher friction; European style brake pad compounds. Drilled & Slotted for increased bite; improved looks and better performance Premium e-coated rotor with advanced metallurgy that greatly reduces pad squeal; Especially effective with higher friction; European style brake pad compounds; Added Molybdenum and Chromium to resist rotor cracking 2009 - 2013 Infiniti FX50, 2012 - 2013 Infiniti M35h, 2011 - 2013 Infiniti M37, 2011 - 2013 Infiniti M56, 2014 - 2019 Infiniti Q50, 2017 - 2019 Infiniti Q60, 2014 - 2019 Infiniti Q70, 2015 - 2017 Infiniti Q70L, 2014 - 2014 Infiniti QX70

• Black E-Coated Non-Friction - Corrosion Protection
• Double Disk Ground For Consistent Friction Surface
• Superior Resistance To Cracks From Thermal Stress
• Drilled/Slotted Helps Evacuate Gasses/Dust/Heat
• Directional Curve Vane Designs On Selected Apps
• Power Alloy Is Descendant Of Patented AeroRotor
• Increased Initial bite and Wet Weather Response
• Direct OE Replacement

The StopTech sto127.42105L SportStop rotor is a 1-piece direct replacement brake disc designed for factory brake systems and stock calipers. Its drilled and slotted design helps evacuate gases, brake dust, and heat while supporting increased initial bite and improved wet-weather response.

A black e-coating provides corrosion protection on non-friction surfaces, while double-disc grinding helps maintain a consistent friction surface. Advanced metallurgy, including added molybdenum and chromium, provides resistance to cracking from thermal stress and helps reduce pad squeal. The rotor is especially effective with higher-friction European-style brake pad compounds.

Key Features & Performance Benefits

• Drilled and slotted design: Helps disperse heat, gases, and brake dust while supporting improved braking response.
• Advanced metallurgy: Added molybdenum and chromium help resist cracking from thermal stress.
• Black e-coating: Protects non-friction surfaces against corrosion.
• Consistent friction surface: Double-disc grinding supports consistent braking performance and the direct OE replacement design is intended for factory brake systems and stock calipers.

Key Product Specifications & Technical Data

• Brand: StopTech
• Part number: sto127.42105L
• Product type: SportStop slotted and drilled brake rotor
• Rotor position: Rear left
• Construction: 1-piece brake disc
• Surface design: Drilled and slotted
• Coating: Black e-coated non-friction surfaces
• Grinding: Double-disc ground

What's Included in the Box

One StopTech sto127.42105L SportStop slotted and drilled rear left rotor.

Fitment

Fits 2009–2013 Infiniti FX50 and 2011–2013 Infiniti M56 applications as listed in the provided fitment data.

Fitments:
2009 Infiniti FX50 Base
2010 Infiniti FX50 Base
2011 Infiniti FX50 Base
2011 Infiniti M37 Base
2011 Infiniti M37 X
2011 Infiniti M56 Base
2011 Infiniti M56 X
2012 Infiniti FX50 Base
2012 Infiniti M35h Base
2012 Infiniti M37 Base
2012 Infiniti M37 X
2012 Infiniti M56 Base
2012 Infiniti M56 X
2013 Infiniti FX50 Base
2013 Infiniti M35h Base
2013 Infiniti M37 Base
2013 Infiniti M37 X
2013 Infiniti M56 Base
2013 Infiniti M56 X
2014 Infiniti Q50 Hybrid Sport
2014 Infiniti Q50 Sport
2014 Infiniti Q70 3.7
2014 Infiniti Q70 5.6
2014 Infiniti Q70 Hybrid
2014 Infiniti QX70 Base
2015 Infiniti Q50 Hybrid Sport
2015 Infiniti Q50 Sport
2015 Infiniti Q70 3.7
2015 Infiniti Q70 5.6
2015 Infiniti Q70 Hybrid
2015 Infiniti Q70L 3.7
2015 Infiniti Q70L 5.6
2016 Infiniti Q50 Red Sport 400
2016 Infiniti Q50 Sport
2016 Infiniti Q70 3.7
2016 Infiniti Q70 5.6
2016 Infiniti Q70 Hybrid
2016 Infiniti Q70L 3.7
2016 Infiniti Q70L 5.6
2017 Infiniti Q50 Red Sport 400
2017 Infiniti Q50 Sport
2017 Infiniti Q60 Premium
2017 Infiniti Q60 Red Sport 400
2017 Infiniti Q60 Sport
2017 Infiniti Q70 3.7
2017 Infiniti Q70 5.6
2017 Infiniti Q70 Hybrid
2017 Infiniti Q70L 3.7
2017 Infiniti Q70L 5.6
2018 Infiniti Q50 Red Sport 400
2018 Infiniti Q50 Sport
2018 Infiniti Q60 Pure
2018 Infiniti Q60 Red Sport 400
2018 Infiniti Q60 Sport
2018 Infiniti Q70 3.7 Luxe
2018 Infiniti Q70 5.6 Luxe
2018 Infiniti Q70 Hybrid
2018 Infiniti Q70L 3.7 Luxe
2018 Infiniti Q70L 5.6 Luxe
2019 Infiniti Q50 Red Sport 400
2019 Infiniti Q50 Sport
2019 Infiniti Q60 Pure
2019 Infiniti Q60 Red Sport 400
2019 Infiniti Q70 5.6 Luxe
2019 Infiniti Q70 Luxe
2019 Infiniti Q70L 3.7 Luxe
2019 Infiniti Q70L 5.6 Luxe
2020 Infiniti Q50 Red Sport 400
2020 Infiniti Q50 Sport
2020 Infiniti Q60 Pure
2020 Infiniti Q60 Red Sport 400
2021 Infiniti Q50 Red Sport 400
2021 Infiniti Q50 Sensory
2021 Infiniti Q60 Red Sport 400
2022 Infiniti Q50 Red Sport 400
2022 Infiniti Q50 Sensory
2022 Infiniti Q60 Red Sport 400
2023 Infiniti Q50 Red Sport 400
2023 Infiniti Q50 Sensory

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1