How to Determine the Rotor Size for Your 2002-2006 Sprinter Van

The 2002-2006 Sprinter vans (T1N models) were manufactured with two main rotor sizes depending on the vehicle’s specifications. To ensure you purchase the correct replacement rotors, follow these steps to determine the size of the rotors currently installed on your van:


Tools Needed

  • Measuring tape or caliper (preferably metric)
  • Jack and jack stands (if measuring directly on the vehicle)
  • Wheel lug wrench
  • Flashlight (optional for better visibility)

Step-by-Step Instructions

Step 1: Check Vehicle Specifications

  • The rotor size depends on your Sprinter’s weight rating, which can be found in the owner’s manual or on the driver’s side door jamb.
  • 2500 Models: Typically come with smaller rotors (285mm).
  • 3500 Models: Often use larger rotors (300mm or more) due to their higher weight capacity.

Step 2: Locate the Rotors

  1. Jack Up the Vehicle:
    • Safely lift the van using a jack and secure it with jack stands.
  2. Remove the Wheel:
    • Use the lug wrench to remove the wheel for clear access to the brake rotor.

Step 3: Measure the Rotor

  1. Measure the Diameter:
    • Place the measuring tape or caliper across the widest point of the rotor (from edge to edge).
    • Record the measurement in millimeters or inches (common sizes for T1N rotors are 285mm or 300mm).
  2. Measure Without Removing the Wheel(Optional):
    • If you prefer not to remove the wheel, use a flashlight to inspect the rotor and measure its diameter visually by extending the tape across the exposed portion. This method is less accurate but can provide a quick estimate.

Step 4: Cross-Reference with Part Numbers

  • Once you have the rotor diameter, compare it to the specifications of the replacement rotors you’re considering.
  • Common Rotor Sizes:
    • 285mm (11.22 inches): Standard size for most 2500 models.
    • 300mm (11.81 inches): Typically found on 3500 models with dual rear wheels.

Step 5: DONT Verify with VIN DONT Locate Your Vehicle Identification Number (VIN) Unfortunately this is not a fool proof way to figure out what you have on your van, as we have found that everyone’s database is not the same or has correct information.


Additional Tips

  • Inspect Other Components: While measuring, inspect the brake pads, calipers, and rotor surface for signs of wear or damage. If replacing the rotors, it’s often a good idea to replace the pads at the same time for optimal performance.
  • Check the Manual: Refer to the factory service manual for specific guidance on rotor sizes and part numbers for your exact model.

Find the Right Rotors at T1Nparts.com

Now that you know how to measure your rotors, shop confidently for the correct size on T1Nparts.com. We stock a wide range of OEM and aftermarket rotors for 2002-2006 Sprinter vans, ensuring you get the perfect fit for your braking system.

Need assistance? Contact our team, and we’ll help you find the exact rotors for your T1N Sprinter!