DBA brake disc 42443S for RAM 1500 3.0 Ecodiesel, 3.6 and 5.7 from 2003 to 2018 and RAM Classic from 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 seeking improved braking performance beyond standard OE levels.

Cast from high carbon alloy iron and engineered with a thermal stability profile, DBA metallurgy can consistently handle the increased stress and heat generated during intense braking.

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

The 4000 SERIES T3 is the ultimate one-piece replacement brake disc with all the benefits of the 4000 Series and DBA's patented, renowned bi-directional T3 slot design.

Building on the foundations of DBA's T2 slot, the T3 slot design features additional, precise, CNC machined, tri-symmetrical 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, further increasing the uniformity and efficiency of each braking operation.

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There are 3 colored markings on the disc that serve as an indicator of the highest temperature reached.

The price refers to one disc.

function	Description	Advantage
T3 Slot 48 precise CNC machined slots	Tri-symmetrical slots dampen vibrations and noise	A softer, more responsive and smoother brake pedal feel
	Increased number of exit points for brake pad friction gases to escape through the universal slot design	Increases the uniformity and efficiency of every braking process
		No different left and right brake discs required
Kangaroo Paw – 144 Diamond and Tear Drop column ventilation system	The increased surface area leads to better heat dissipation	Minimizes brake fade and increases braking effectiveness
	The increased surface area leads to better heat dissipation	Extends the life of pads and brake discs. Reduces mechanical damage and associated costs
XG150 High Carbon Alloy Iron	Increased thermal capacity allows the brake disc to handle extreme heat for extended periods	Minimizes deformation and cracking and extends the life of the brake disc
Thermal stability profile	Special development that is tailored to the DBA’s TSP procedure	Minimizes deformation and cracking and extends the life of the brake disc
Thermographic temperature monitoring	Heat color markers change color at certain temperature thresholds	Provides the driver with a clear indication of peak brake temperatures
	If the temperature thresholds are exceeded, the color markings permanently change color	Allows the driver to monitor brake disc fatigue and decide whether to replace the brake discs and assist dealers with warranty claims
Paint protection on friction-free surfaces	Reduces corrosion	Prevents unsightly rust formation
	Improves appearance	Increases the value of the product