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Raybestos 981775R Disc Brake Rotor - Front
Overview of Raybestos R-Line Disc Brake Rotor 981775R
The Raybestos R-Line Disc Brake Rotor 981775R is engineered for reliable braking performance on select Infiniti and Mercedes-Benz models. Designed as a vented, conventional rotor, it offers precise fitment and durability for vehicles like the Infiniti QX30 and Mercedes-Benz CLA250.
- Vented disc brake rotor for improved heat dissipation
- Overall diameter of 12.598 inches (320 mm) for exact fit
- Nominal thickness of 1.180 inches (29.950 mm) with discard thickness at 1.080 inches (27.450 mm)
- Five mounting bolt holes with a 4.409 inch (112 mm) bolt circle diameter
- Compatible with Infiniti B250, QX30 and Mercedes-Benz CLA250, GLA250 models
Detailed Specifications and Features
This Raybestos R-Line rotor (part number 981775R) features a vented design that enhances cooling during braking, reducing the risk of brake fade. The rotor’s nominal thickness of 1.180 inches (29.950 mm) ensures structural integrity, while the discard thickness of 1.080 inches (27.450 mm) indicates when replacement is necessary to maintain safe braking performance. The overall height measures 2.012 inches (51.100 mm), and the rotor includes five mounting bolt holes arranged on a 4.409 inch (112 mm) bolt circle diameter, matching the factory specifications for the listed Infiniti and Mercedes-Benz vehicles.
R-Line Product Line Information
The Raybestos R-Line series focuses on delivering reliable, OEM-quality brake components designed to meet or exceed original equipment specifications. This product line emphasizes precise fitment and consistent performance, making the 981775R rotor a suitable replacement part for maintaining the braking system integrity on compatible Infiniti and Mercedes-Benz models.
Applications and Problem Solving
- Replacement for worn or warped rotors causing brake pulsation
- Restores braking efficiency on Infiniti B250 and QX30 models
- Addresses noise and vibration issues in Mercedes-Benz CLA250 and GLA250
- Prevents overheating with vented rotor design
- Ensures proper rotor thickness for safe braking performance
Installation Notes and Tips
- Verify rotor thickness before installation to ensure it exceeds discard thickness
- Clean mounting surfaces to prevent uneven rotor seating
- Torque mounting bolts to manufacturer specifications for secure fitment
- Inspect brake pads and hardware during rotor replacement
- Perform a test drive to confirm proper brake operation after installation
Quality Assurance and Warranty
Raybestos R-Line rotors are manufactured to meet strict quality standards, ensuring durability and consistent braking performance. While specific warranty details for part number 981775R should be confirmed with the supplier, Raybestos typically offers coverage against defects in materials and workmanship to support long-term reliability.
| Brand | Raybestos |
|---|---|
| Part Number | 981775R |
| Position | R-Line, Front |
| Conventional Or Drum-In-Hat Type Rotor | Conventional |
| Discard Thickness | 1.080 |
| Discard Thickness | 27.450 |
| Mounting Bolt Hole Circle Diameter | 4.409 |
| Mounting Bolt Hole Circle Diameter | 112.000 |
| Mounting Bolt Hole Quantity | 5 |
| Nominal Thickness | 1.180 |
| Nominal Thickness | 29.950 |
| Outside Diameter | 12.598 |
| Outside Diameter | 320.000 |
| Overall Height | 2.012 |
| Overall Height | 51.100 |
| Solid Or Vented Type Rotor | Vented |
| Stud/Lug Hole Quantity | 5 |
This part fits 27 vehicles. Search below:
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 2020 | Mercedes-Benz | GLA250 | Front | Not compatible with vehicles equipped with sport package.; R-Line | |
| 2019 | INFINITI | QX30 | Sport | Front | R-Line |
| 2019 | INFINITI | QX30 | Pure | Front | R-Line |
| 2019 | INFINITI | QX30 | Luxe | Front | R-Line |
| 2019 | INFINITI | QX30 | Essential | Front | R-Line |
| 2019 | Mercedes-Benz | B250 | Front | Raybestos R-Line | |
| 2019 | Mercedes-Benz | CLA250 | Front | Not compatible with vehicles equipped with sport package.; R-Line | |
| 2019 | Mercedes-Benz | GLA250 | Front | Not compatible with vehicles equipped with sport package.; R-Line | |
| 2018 | INFINITI | QX30 | Base | Front | R-Line |
| 2018 | INFINITI | QX30 | Premium | Front | R-Line |
| 2018 | INFINITI | QX30 | Luxury | Front | R-Line |
| 2018 | Mercedes-Benz | B250 | Front | Raybestos R-Line | |
| 2018 | Mercedes-Benz | CLA250 | Front | Not compatible with vehicles equipped with sport package.; R-Line | |
| 2018 | Mercedes-Benz | GLA250 | Front | Not compatible with vehicles equipped with sport package.; R-Line | |
| 2017 | INFINITI | QX30 | Front | R-Line | |
| 2017 | Mercedes-Benz | B250 | Front | Raybestos R-Line | |
| 2017 | Mercedes-Benz | CLA250 | Front | Not compatible with vehicles equipped with sport package.; R-Line | |
| 2017 | Mercedes-Benz | GLA250 | Front | Not compatible with vehicles equipped with sport package.; R-Line | |
| 2016 | Mercedes-Benz | B250 | Front | Raybestos R-Line | |
| 2016 | Mercedes-Benz | CLA250 | Front | Not compatible with vehicles equipped with sport package.; R-Line | |
| 2016 | Mercedes-Benz | GLA250 | Front | Not compatible with vehicles equipped with sport package.; R-Line | |
| 2015 | Mercedes-Benz | B250 | Front | Raybestos R-Line | |
| 2015 | Mercedes-Benz | CLA250 | Front | Not compatible with vehicles equipped with sport package.; R-Line | |
| 2015 | Mercedes-Benz | GLA250 | Front | Not compatible with vehicles equipped with sport package.; R-Line | |
| 2014 | Mercedes-Benz | B250 | Front | Raybestos R-Line | |
| 2014 | Mercedes-Benz | CLA250 | Front | Not compatible with vehicles equipped with sport package.; R-Line | |
| 2013 | Mercedes-Benz | B250 | Front | Raybestos R-Line |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.