DBA Brake Disc 42443S for RAM 1500 3.0 Ecodiesel, 3.6 and 5.7 from 2003 to 2018 and RAM Classic 2019+ (Rear Axle)

Mopar part numbers for comparison purposes: 52009968AA, 52009968AB, 52009968AC, 52009968AD

DBA 4000 SERIES disc brake rotors are a direct replacement for one-piece brake rotors, designed for drivers looking for improved braking performance beyond the standard OE level.

Cast from high-carbon alloyed iron and featuring a thermal stability profile, DBA metallurgy can repeatedly cope with the increased stress and heat generated during intensive braking operations.

With DBA's Kangaroo Paw ventilation, which incorporates a series of 144 diamond and teardrop shaped elements, DBA achieves up to 30 % more surface area and 20 % improved cooling efficiency (compared to a conventional straight fin design).

The 4000 SERIES T3 is the ultimate one-piece replacement brake disc with all the advantages of the 4000 series and the patented, well-known bi-directional T3 slot design from DBA.

Building on the foundations of DBA's T2 slot, the T3 slot design features additional precision CNC-machined trisymmetrical slots, resulting in an even quieter, more responsive and smoother brake pedal feel.
The T3 slot increases the number of exit points for brake pad friction dust and gases to escape through, further increasing the uniformity and efficiency of each braking operation.

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There are 3 colour markings on the rotor which serve as an indicator of the highest temperature reached.

The price refers to one rotor.

Feature	Description	Advantage
T3 Slot 48 precision CNC machined slots	Tri-Symmetrical curve slots dampens the vibration harmonics or noise	A quieter, responsive and smoother brake pedal feel
	Increased number of out-gassing exit points for brake pad friction gasses to escape through universal slot design	Minimises brake fade and increases braking effectiveness
		Eliminates the need for left and right discs
Kangaroo Paw – 144 diamond and tear drop pillar ventilation system	Increased surface area resulting in greater heat dissipation	Minimises brake fade and increases braking effectiveness
	Increased surface area resulting in greater heat dissipation	Prolongs service life for both pads and rotors. Reduces mechanical damage and associated costs
XG150 High Carbon Alloyed Iron	An increase in thermal capacity property allows the rotor to handle constant extremes of heat over extended periods of time	Minimises warping and cracking and prolongs the service life of the rotor
Thermal Stability Profiling	Special formulation designed to respond to DBA’s TSP process	Minimises warping and cracking and prolongs the service life of the rotor
Thermographic Temperature Monitoring	Heat paint markings change colour at specific temperature thresholds	Offers the driver a clear indication of peak braking temperatures
	When temperature thresholds are exceeded paint markings will permanently change colours	Allows the driver to monitor rotor fatigue and decide on rotor replacement and to assist resellers with warranty claims
Paint protection on non-friction areas	Reduces corrosion	Stops any unsightly rust formation
	Enhances appearance	Adds value to the product