TRW Disc Brake Rotor 330mm x 26 Min

TRW · Part number DF4478S · NZ$206.00 incl. GST

For your zippy European machines like the Alfa Romeo 159 and Giulietta, or even the trusty Jeep Cherokee, reliable disc brake rotors are absolutely vital, providing the friction surface for your brake pads to grab onto and ensuring you stop safely and soundly.

Price

NZ$206.00 including GST. Part number DF4478S.

Fits these vehicles

• Alfa Romeo 159 (2005–2011)
• Alfa Romeo 159 (2005–2011)
• Alfa Romeo 159 (2005–2011)
• Alfa Romeo 159 (2005–2011)
• Alfa Romeo 159 (2006–2011)
• Alfa Romeo 159 (2006–2011)
• Alfa Romeo 159 (2006–2011)
• Alfa Romeo 159 (2006–2011)
• Alfa Romeo 159 (2007–2011)
• Alfa Romeo 159 (2007–2011)
• Alfa Romeo 159 (2007–2011)
• Alfa Romeo 159 (2007–2012)
• Alfa Romeo 159 (2008–2011)
• Alfa Romeo 159 (2008–2011)
• Alfa Romeo 159 (2009–2011)
• Alfa Romeo 159 (2009–2012)
• Alfa Romeo 159 (2010–2011)
• Alfa Romeo 159 (2010–2011)
• Alfa Romeo Brera (2006–2011)
• Alfa Romeo Brera (2006–2011)
• Alfa Romeo Brera (2006–2011)
• Alfa Romeo Brera (2007–2011)
• Alfa Romeo Brera (2008–2010)
• Alfa Romeo Brera (2008–2010)
• Alfa Romeo Brera (2009–2010)
• Alfa Romeo Giulietta (2010–2013)
• Alfa Romeo Giulietta (2010–2016)
• Alfa Romeo Giulietta (2010–2016)
• Alfa Romeo Giulietta (2010–2016)
• Alfa Romeo Giulietta (2010–2018)
• Alfa Romeo Giulietta (2010–2020)
• Alfa Romeo Giulietta (2010–2020)
• Alfa Romeo Giulietta (2010–2020)
• Alfa Romeo Giulietta (2011–2017)
• Alfa Romeo Giulietta (2011–2017)
• Alfa Romeo Giulietta (2013–2018)
• Alfa Romeo Giulietta (2013–2018)
• Alfa Romeo Giulietta (2013–2018)
• Alfa Romeo Giulietta (2014–2018)
• Alfa Romeo Giulietta (2015–2020)

Description

Disc Brake Rotor Replacement Guide — Keep Your Stopping Power Sharp!
> Right then, mates, let's talk about disc brake rotors. These are the unsung heroes — the metal discs your brake calipers squeeze onto, creating all that friction needed to slow your ride down and bring it to a halt. Over time, all that heat and friction from our Kiwi roads will wear 'em thin, warp 'em a bit, or carve some grooves, which means your braking won't be quite up to scratch. This is especially true for those performance-tuned European beauties like your Alfa Romeos, where you expect top-notch braking every time.
Symptoms That Led You Here
• That annoying shudder or pulsation through the brake pedal or steering wheel when you hit the anchors.
• Squealing, grinding, or a nasty scraping sound when you're braking.
• Taking a bit longer to stop, or the brake pedal feeling a bit 'squishy'.
• You can see scoring, deep grooves, or even blue heat spots on the rotor surface.
Will it pass WOF?
Nah, mate, no chance. Worn, warped, or damaged brake rotors are a big safety no-no and will absolutely see your vehicle fail its Warrant of Fitness (WOF) inspection here in New Zealand. Rotors have to meet minimum thickness specs and be free from any serious scoring or cracks to pass.
DIY or Workshop?
Difficulty: 6/10 (Moderate)
Estimated Time: 1-2 hours per axle (for experienced DIYers)
Tools Required: Jack and jack stands, wheel nut wrench, brake caliper compression tool, appropriate socket/spanner set, torque wrench, wire brush, brake cleaner, safety glasses, gloves.
🛠️ Bob's "Get It Done Right" Companion Checklist
Before you dive into a brake job, let's make sure you've got all your ducks in a row for a safe and clean operation:
• Safety First, Always! Grab some sturdy safety glasses — you don't want brake dust or stray bits in your eyes. And for keeping those hands clean and protected, a pair of heavy-duty nitrile gloves is a no-brainer.
• Cleanliness is Key: After you've got everything apart, give those calipers and surrounding areas a good blast with some quality brake cleaner spray to get rid of all that carbon dust and grime.
• Smooth Operator: Don't forget some anti-seize caliper grease. This stuff is gold for making sure your new pads move freely and don't seize up later.
Expert Recommendation
Bob reckons you should always replace brake rotors the moment they show any signs of wear or damage. It's all about keeping your ride stopping like it should and keeping everyone safe on our roads. For performance vehicles like your Alfa Romeo or that trusty Jeep Cherokee, high-quality rotors aren't just nice-to-haves; they're essential for consistent, reliable stopping power. The TRW DF4478S rotor is a fantastic choice, well-known for its quality and performance. Keeping your braking system in tip-top shape is absolutely paramount for cruising around NZ.
Bob @ CARFIX is always on hand to help you work out exactly what part you need for your Alfa Romeo or Jeep. Make sure you head over to Bob's Shop for a chat!
Fitment Notes
This specific TRW rotor is designed for a range of Alfa Romeo 159 and Giulietta models, including various JTDM, TB, and TBi engine variants, as well as certain Jeep Cherokee V6 models. Always double-check the exact fitment for your specific year, make, model, and engine size to ensure compatibility, as brake components can vary significantly even within the same model range.

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🛠️ Bob's Pro Tip: Do the Job Right!
> If you're swapping out these parts on your vehicle 159, always install fresh brake pads. Check out our compatible TRW Brake Pads (SKU GDB1363) to ensure a perfect bed-in and get the job done properly first time!

🧰 What Else You'll Need:
• Safety First: Never work under a vehicle supported only by a jack. Always secure it on heavy-duty safety jack stands.
• Brake Dust Protection: Keep a pack of Nitrile Gloves handy to protect your hands from grease and dust.
• Clean and Prep: Use Brake Cleaner to clean the anti-corrosion shipping oil off the new rotors before mounting the calipers.
• Lubrication: Apply caliper grease to caliper slide pins and pad contact points to prevent squealing.