HomeBrake > Drums and RotorsDynamite Friction 631-40118R Disc Brake Rotor - Rear Right
Part #: 631-40118R

Dynamite Friction 631-40118R Disc Brake Rotor - Rear Right

DFC Brake Rotor - Drilled and Slotted - Silver, Rear Right
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OE Direct Replacement — Bolt-on fit, no modifications needed
DFC Brake Rotor - Drilled and Slotted - Silver, Rear Right
Fitment: Dodge and Ram, 2500, 3500, 4000, Ram 2500, and Ram 3500
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-40118R) is engineered for reliable braking performance on Dodge Ram 2500 and 3500 models. Designed with vented construction and a directional surface, this rotor supports efficient heat dissipation and consistent stopping power.

  • Vented disc brake rotor with drilled and slotted surface
  • Nominal thickness of 34 mm and discard thickness of 32.4 mm
  • Directional braking surface for optimized pad contact
  • Zinc silver hat finish with rust-resistant coating
  • Eight bolt holes with 16.8 mm diameter and 165 mm bolt circle diameter
  • Overall diameter of 358 mm and height of 125 mm

Detailed Product Features and Specifications

This Dynamite Friction rotor features a vented design that improves airflow to reduce heat buildup during braking, which is critical for heavy-duty applications like the Dodge Ram 2500 and 3500. The drilled and slotted surface enhances brake pad bite and helps evacuate gases and debris, maintaining consistent braking performance. The rotor’s directional surface ensures proper rotation alignment for optimal wear and efficiency.

The rotor’s nominal thickness is 34 mm, with a discard thickness of 32.4 mm, indicating when replacement is necessary to maintain safety. The zinc silver hat finish provides corrosion resistance, extending the rotor’s service life. With eight bolt holes sized at 16.8 mm diameter and a bolt circle diameter of 165 mm, this rotor is designed to fit securely on compatible Dodge Ram models. The overall diameter of 358 mm and height of 125 mm match factory specifications for proper fitment.

About the DFC Brake Rotor - Drilled and Slotted - Silver Line

The DFC Brake Rotor - Drilled and Slotted - Silver product line by Dynamite Friction focuses on rotors that combine drilled holes and slots to improve braking efficiency and heat dissipation. This line is designed for drivers who require reliable stopping power under demanding conditions, such as towing or heavy payloads, commonly encountered by Dodge Ram 2500 and 3500 owners. The silver zinc coating adds rust resistance, helping maintain rotor integrity over time.

Applications and Problem Solving

  • Replacement for worn or warped rotors on Dodge Ram 2500 and 3500
  • Improves heat dissipation to reduce brake fade during heavy braking
  • Enhances braking performance in wet or debris-prone environments
  • Addresses uneven pad wear caused by rotor surface irregularities
  • Prevents rust and corrosion that can compromise braking efficiency

Installation Notes and Tips

Ensure the rotor is installed with the directional surface rotating correctly according to vehicle specifications. Verify bolt hole alignment with the 8-lug pattern and 165 mm bolt circle diameter. Measure rotor thickness before installation to confirm it meets or exceeds the discard thickness of 32.4 mm. Clean the rotor surface to remove any protective coatings or debris before mounting to ensure proper pad contact.

Quality Assurance and Warranty

Dynamite Friction manufactures the 631-40118R rotor to meet or exceed OEM standards for fit, form, and function on Dodge Ram 2500 and 3500 models. The rust-resistant zinc silver finish helps extend rotor life under typical operating conditions. Warranty details are provided by the manufacturer and should be reviewed prior to installation.

BrandDynamite Friction
Part Number631-40118R
PositionDFC Brake Rotor - Drilled and Slotted - Silver, Rear Right
Discard Thickness32.4
Nominal Thickness34
Bolt Hole Diameter16.8
Disc FinishPlain
Hat FinishZinc silver
Rust Resistant CoatingYes
Bolt Hole Quantity8
Overall Height125
Outside Diameter358
Height125
Surface TypeSlotted x drilled
Solid Or Vented Type RotorVented
Center Hole Diameter123
Stud/Lug Hole Quantity8
Stud/Lug Hole Diameter16.8
Directional or Non-Directional Brake SurfaceDirectional
Bolt Circle Diameter165
Stud/Lug Hole Circle Diameter165

This part fits 50 vehicles. Search below:

YearMakeModelFuel TypePositionNotes
2025Ram2500Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2025Ram3500GASRear RightSRW; DFC Brake Rotor - Drilled and Slotted - Silver
2024Ram2500Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2024Ram3500GASRear RightSRW; DFC Brake Rotor - Drilled and Slotted - Silver
2023Ram2500Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2023Ram3500GASRear RightSRW; DFC Brake Rotor - Drilled and Slotted - Silver
2022Ram2500Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2022Ram3500DIESELRear RightSRW; High Output HD Transmission; 12" Rear Axle; DFC Brake Rotor - Drilled and Slotted - Silver
2022Ram3500DIESELRear RightSRW; Standard Output Transmission; 11.5" Rear Axle; DFC Brake Rotor - Drilled and Slotted - Silver
2022Ram3500GASRear RightBrake Hydraulic Hose: SRW; DFC Brake Rotor - Drilled and Slotted - Silver
2021Ram2500Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2021Ram3500DIESELRear RightSRW; High Output HD Transmission; 12" Rear Axle; DFC Brake Rotor - Drilled and Slotted - Silver
2021Ram3500DIESELRear RightSRW; Standard Output Transmission; 11.5" Rear Axle; DFC Brake Rotor - Drilled and Slotted - Silver
2021Ram3500GASRear RightBrake Hydraulic Hose: SRW; DFC Brake Rotor - Drilled and Slotted - Silver
2020Ram2500Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2020Ram3500DIESELRear RightSRW; High Output HD Transmission; 12" Rear Axle; DFC Brake Rotor - Drilled and Slotted - Silver
2020Ram3500DIESELRear RightSRW; Standard Output Transmission; 11.5" Rear Axle; DFC Brake Rotor - Drilled and Slotted - Silver
2020Ram3500GASRear RightBrake Hydraulic Hose: SRW; DFC Brake Rotor - Drilled and Slotted - Silver
2019Ram2500Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2019Ram3500DIESELRear RightSRW; High Output HD Transmission; 12" Rear Axle; DFC Brake Rotor - Drilled and Slotted - Silver
2019Ram3500DIESELRear RightSRW; Standard Output Transmission; 11.5" Rear Axle; DFC Brake Rotor - Drilled and Slotted - Silver
2019Ram3500GASRear RightBrake Hydraulic Hose: SRW; DFC Brake Rotor - Drilled and Slotted - Silver
2018Ram2500Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2018Ram3500Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2018Ram4000Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2017Ram2500Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2017Ram3500Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2017Ram4000Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2016Ram2500Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2016Ram3500Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2016Ram4000Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2015Ram2500Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2015Ram3500Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2015Ram4000Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2014Ram2500Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2014Ram3500Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2014Ram4000Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2013Ram2500Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2013Ram3500Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2013Ram4000Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2012Ram2500Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2012Ram3500Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2012Ram4000Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2011Ram2500Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2011Ram3500Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2011Ram4000Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2010DodgeRam 2500Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2010DodgeRam 3500Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2009DodgeRam 2500Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
2009DodgeRam 3500Rear RightDFC Brake Rotor - Drilled and Slotted - Silver

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.