DBA 43051-10 4000 Series HD Rear Brake Rotor for Subaru WRX

Cast from XG-150 high carbon alloyed iron and undergoing Thermal Stability Profiling. DBA's metallurgy is able to handle the increased stress and heat generated under intense braking application time and time again. Featuring DBA;s patented Kangaroo Paw ventilation that implements a series of 144 diamond and teardrop patterned pillars. DBA achieves up to a 30% increase in surface are and 20% improvement in cooling efficiency compared to traditional straight vane design. 4000 SERIES HD variant features a smooth OE style rotor finish, popular for drivers looking for the benefits of a 4000 Series rotor but requiring an OE style look, such as controlled race divisions. DBA's 4000 Series HD variant features a smooth OE style rotor finish Popular for drivers looking for the benefits of a 4000 Series rotor but requiring an OE style look, such as under controlled race division, XG-150 High Carbon Alloyed iron, TSP-Thermal Stability Profiling, THGP - Thermo-graphic paint markings, Direct replacement suitability, Moisture proof corrosion protection packaging

The DBA 43051-10 4000 Series HD rear brake rotor is designed for drivers who need dependable braking performance under repeated high-heat conditions while maintaining a smooth, OE-style appearance. This direct-replacement rotor is engineered for compatible Subaru WRX applications and is well suited to controlled racing divisions or performance-focused street vehicles that require enhanced thermal management without a slotted or drilled visual design.

Constructed from DBA XG-150 high-carbon alloyed iron, the rotor undergoes Thermal Stability Profiling to help manage the stress and heat generated during intense braking. DBA’s patented Kangaroo Paw ventilation system uses 144 diamond- and teardrop-patterned pillars to increase surface area by up to 30% and improve cooling efficiency by up to 20% compared with traditional straight-vane designs. These features help support consistent braking performance during repeated applications.

The 4000 Series HD variant includes a smooth rotor finish modeled after an original-equipment design. THGP thermo-graphic paint markings assist with monitoring rotor operating temperatures, while moisture-resistant corrosion-protection packaging helps preserve the component during storage and handling. The DBA 43051-10 is supplied as a direct replacement for the appropriate factory rotor and is intended for automotive brake system applications. Verify vehicle configuration, brake package, axle position, and wheel clearance before ordering.

Fitment: Compatible with select 2018 and 2021 Subaru WRX applications. The supplied fitment data identifies Subaru WRX models equipped with a Brembo 6-pot Spec R yellow-caliper package and 19-inch wheels. Confirm exact year, trim, caliper configuration, and axle position with the vehicle manufacturer or an installation professional.

What's Included: One DBA 43051-10 4000 Series HD rear brake rotor.

Features:

• XG-150 High-Carbon Alloyed Iron: Provides a durable foundation designed to withstand elevated braking stress and repeated heat cycles.
• Thermal Stability Profiling: Helps the rotor manage thermal loads and support consistent performance during demanding braking use.
• Kangaroo Paw Ventilation: Uses 144 diamond- and teardrop-patterned pillars to increase surface area and improve cooling compared with traditional straight vanes.
• Smooth OE-Style Finish: Delivers the performance advantages of the 4000 Series HD design with an understated factory-style appearance.

Fitments:
2018 Subaru WRX Base
2018 Subaru WRX Limited
2018 Subaru WRX Premium
2021 Subaru WRX Base
2021 Subaru WRX Limited
2021 Subaru WRX Premium

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