Infiniti FX35 (2003-2012) Disc Brake Rotor: A Complete Replacement Guide

Is Your FX35 Shaking When You Brake?

One of the most common complaints from 2003-2012 INFINITI FX35 owners is a vibration or judder felt through the steering wheel and brake pedal during braking. This is often caused by what many call "warped rotors." More accurately, the issue is uneven deposits of brake pad material on the rotor's surface or variations in the rotor's thickness. The original equipment (OEM) rotors on the first-generation FX35, in particular, were known to be prone to this issue, leading many owners to seek more durable aftermarket solutions.

Generation Differences: The Most Common Ordering Mistake

Before buying rotors, you must know which generation of FX35 you own, as the brake systems are different. Rotors are not interchangeable between these generations.

• First Generation (S50): 2003-2008: These models use a 2-piston front caliper and a 1-piston rear caliper. 🎬 Watch: Step-by-step front rotor replacement for 2003-2008 models. To address early complaints of brake judder, INFINITI updated the 2006-2008 models with slightly thicker front rotors and beefier calipers compared to the 2003-2005 models. While rotors may fit across these years, it's crucial to verify the exact part for your specific model year.
• Second Generation (S51): 2009-2012: These models received a significant factory brake upgrade to 4-piston front calipers and 2-piston rear calipers. These larger, more powerful brakes require different rotors than the first-generation models.
🎬 See how to change front pads and rotors on 2009-2012 models.

Choosing the Right Aftermarket Rotors for Your FX35

Aftermarket rotors often provide better performance and durability than the stock parts they replace. They can be grouped into three main tiers:

Economy Rotors

These are your most basic, budget-friendly options. They are designed to meet minimum factory specifications and offer a low-cost solution for daily driving. While functional, they may not offer the same longevity or resistance to brake judder as higher-quality options.

• Dynamic Friction
• Pronto
• UQUALITY CALIPERS
• Other private-label store brands

OEM-Quality Rotors

This is the sweet spot for most FX35 owners. These rotors are made by reputable manufacturers and are designed to meet or exceed original equipment standards. They often use better materials and manufacturing processes, providing a smoother, longer-lasting brake surface that is more resistant to judder.

• Centric: A highly recommended brand in owner forums, offering excellent quality and value. Their C-TEK line is a solid standard replacement, while their High Carbon and Premium lines offer enhanced durability.
• Raybestos: A long-standing, trusted name in brakes offering reliable, durable rotors.
• Bosch: Known for quiet operation and excellent build quality.
• ACDelco: A reliable choice offering both Professional and Advantage series rotors.
• Beck Arnley: Focuses on matching the form, fit, and function of original parts.

Performance Rotors

For drivers who demand more from their FX35, performance rotors offer improved heat dissipation and braking response. They often feature slots, drill holes, or both. Slotted rotors help clear gas and debris from the pad surface, while drilled rotors help dissipate heat more quickly. These are great for spirited driving or towing but can sometimes be noisier and wear pads faster than blank rotors.

• StopTech: A sister brand to Centric, StopTech is a leader in performance braking and a popular choice for upgrades.
• EBC Brakes: Offers a wide range of performance rotors with different slotting and coating options.
• Brembo: A top-tier brand synonymous with high performance, offering direct replacement and big brake kit options.
• Hawk Performance: Known for pairing aggressive brake pads with high-quality performance rotors.
• Powerstop: Offers popular drilled and slotted rotor kits that are often bundled with matching performance pads.

Known Issues, Recalls, and TSBs

• Brake Judder TSB: INFINITI has issued several general Technical Service Bulletins (like ITB00-024) acknowledging brake judder. The cause is identified as rotor thickness variation, and the prescribed fix is to resurface or replace the rotors.
• NHTSA Recall 03V476000: This recall was issued for some 2003 FX35 models because the front brake caliper mounting bolts may not have been tightened properly at the factory. This could cause the caliper to loosen, potentially leading to brake failure.

Frequently Asked Questions (FAQ)