OE Quality
60-Day Returns

Nugeon 99-02437A Disc Brake Caliper - Rear Left
Overview of Nugeon Reman Caliper w Installation Hardware
The Nugeon Reman Caliper w Installation Hardware (Part Number 99-02437A) is designed specifically for BMW X3 and X4 models. This remanufactured disc brake caliper offers a rust preventative grey finish and includes essential components to ensure reliable brake performance.
- Remanufactured cast iron disc brake caliper with rust preventative finish
- Includes caliper bracket and caliper slides for proper fitment
- Equipped with bleeder screw (M10-1.0 x 28 thread) for brake fluid maintenance
- Dust boots and brake pad hardware included for protection and installation
- Compatible with BMW X3 and X4 models
Product Line Details: Reman Caliper w Installation Hardware
The Nugeon Reman Caliper w Installation Hardware product line focuses on providing remanufactured brake calipers that come with necessary hardware components such as brackets, slides, and pad hardware. This ensures a comprehensive replacement solution for brake hydraulics, reducing the need for additional parts during installation. The 99-02437A caliper maintains OEM specifications, including the correct bracket cast numbers (1878b) and housing cast numbers (1871b), to guarantee proper fit and function.
Technical Specifications and Features
This disc brake caliper features a single steel piston with a 42 mm (1.654 inch) outside diameter, designed to deliver consistent braking force. The inlet fitting uses a line type with an M10-1.0 thread size, matching factory brake line connections. The caliper includes a bleeder screw for effective brake bleeding but does not come with a bleeder screw cap or anti-squeal shims. The grey finish provides rust prevention, extending the caliper's service life. Dust boots protect internal components from contaminants, and the included caliper slides ensure smooth operation.
Common Applications and Problem Resolution
- Replacement for worn or leaking brake calipers on BMW X3 and X4
- Addresses brake fluid leaks due to damaged bleeder screws or seals
- Resolves uneven brake pad wear caused by faulty caliper slides or brackets
- Eliminates brake noise related to caliper hardware issues (excluding anti-squeal shims)
- Restores proper brake hydraulic function for improved vehicle safety
Installation Notes and Tips
Ensure compatibility with your BMW X3 or X4 by verifying part number 99-02437A before installation. The caliper comes with the bracket and caliper slides but does not include bracket mounting bolts, so retain or source these separately. Properly torque the bleeder screw and inlet fitting to manufacturer specifications. Inspect brake pads and rotors during installation, as pads are not included with this caliper. Use copper crush washers with the banjo bolt to prevent leaks.
Quality Assurance and Warranty
This remanufactured caliper undergoes rigorous testing to meet OEM standards for fit, form, and function. The rust preventative finish and inclusion of key hardware components contribute to long-term reliability. Warranty details are provided by the manufacturer and typically cover defects in materials and workmanship under normal use conditions.
| Brand | Nugeon |
|---|---|
| Part Number | 99-02437A |
| Position | Reman Caliper w/ Installation Hardware, Rear Left |
| Anti-Squeal Shims Included | No |
| Bleeder Screw Cap Included | No |
| Bleeder Screw Included | Yes |
| Bleeder Screw Thread (mm) | M10-1.0 x 28 |
| Bleeder Thread Size | M10-1.0 |
| Bracket Cast Numbers | 1878b |
| Bracket Included | Yes |
| Bracket Mounting Bolts Included | No |
| Caliper And Pad Hardware Included | Yes |
| Caliper Color | Grey |
| Caliper Finish | Rust preventative |
| Caliper Slides Included | Yes |
| Casting Material | Cast iron |
| Dust Boots Included | Yes |
| Hardware Included | Yes |
| Housing Cast Numbers | 1871b |
| Inlet Fitting Type | Line |
| Inlet Port Thread Size (mm) | M10-1.0 |
| Inlet Thread Size | M10-1.0 |
| New or Remanufactured | Remanufactured |
| Package Contents | Includes brake pad installation hardware w/ banjo bolt & copper c |
| Pads Included | No |
| Piston 1 Outside Diameter (in) | 1.654 |
| Piston 1 Outside Diameter (mm) | 42 |
| Piston Material | Steel |
| Piston Quantity | 1 |
| Wear Sensors Included | No |
This part fits 10 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2018 | BMW | X4 | Rear Left | Supplied wo/ Parking Brake Motor; Reman Caliper w/ Installation Hardware |
| 2017 | BMW | X3 | Rear Left | Supplied w/ Mounting Bracket; Supplied wo/ Parking Brake Motor; Reman Caliper w/ Installation Hardware |
| 2017 | BMW | X4 | Rear Left | Supplied w/ Mounting Bracket; Supplied wo/ Parking Brake Motor; Reman Caliper w/ Installation Hardware |
| 2016 | BMW | X3 | Rear Left | Supplied w/ Mounting Bracket; Supplied wo/ Parking Brake Motor; Reman Caliper w/ Installation Hardware |
| 2016 | BMW | X4 | Rear Left | Supplied w/ Mounting Bracket; Supplied wo/ Parking Brake Motor; Reman Caliper w/ Installation Hardware |
| 2015 | BMW | X3 | Rear Left | Supplied w/ Mounting Bracket; Supplied wo/ Parking Brake Motor; Reman Caliper w/ Installation Hardware |
| 2015 | BMW | X4 | Rear Left | Supplied w/ Mounting Bracket; Supplied wo/ Parking Brake Motor; Reman Caliper w/ Installation Hardware |
| 2014 | BMW | X3 | Rear Left | Supplied w/ Mounting Bracket; Supplied wo/ Parking Brake Motor; Reman Caliper w/ Installation Hardware |
| 2013 | BMW | X3 | Rear Left | Supplied w/ Mounting Bracket; Supplied wo/ Parking Brake Motor; Reman Caliper w/ Installation Hardware |
| 2012 | BMW | X3 | Rear Left | Supplied w/ Mounting Bracket; Supplied wo/ Parking Brake Motor; Reman Caliper w/ Installation Hardware |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.