
RDA Brakes · Part number RDA421 · NZ$135.00 incl. GST
Got an older but gold sedan like a Mitsubishi Magna or Diamante? The disc brake rotors are what your brake pads clamp onto, turning that 'uh-oh' energy into a smooth stop. RDA's a solid choice, and we've got 'em here at CARFIX.
NZ$135.00 including GST. Part number RDA421.
Disc Brake Rotor Replacement: The RDA Story
> Your disc brake rotors are crucial for pulling up your Mitsubishi Magna or Diamante safely. They team up with the calipers and pads to get you stopped. Over time, they can wear down, warp, or get scored, making your braking less effective – especially out there on New Zealand's open roads.
What Clued You In?
• Steering wheel or brake pedal juddering when you hit the brakes.
• Squealing or grinding sounds during braking.
• Taking longer to stop than usual.
• Visible damage to the rotor surface like scoring, grooves, or heat spots.
• Brake pedal feels soft or spongy.
WOF Worthy?
Nah mate. If your brake rotors are cactus, warped, or damaged, your car will fail its WOF faster than you can say "flat tyre". Safety first!
DIY or Get a Pro?
Difficulty: 6/10 (A good Saturday project)
Time Needed: 1-2 hours per axle (if you know your way around a spanner)
Gear You'll Need: Jack, axle stands, wheel brace, brake caliper socket/spanner, G-clamp or brake caliper piston tool, torque wrench, wire brush, brake cleaner, safety glasses, gloves.
🛠️ Bob's "Get It Done Right" Companion Checklist
Alright, before you get cracking on those rotors, let's make sure you're sorted. First up, safety! Never, ever get under a car that's only held up by a jack. Axle stands are your best mates here. Grab some Nitrile Gloves to keep the hands clean and a pair of Safety Glasses to keep the grit out of your eyes. Brake dust is nasty stuff, so a good blast with Brake Cleaner is a must. And while you're at it, a dab of anti-seize on the caliper bolts will make life easier next time around. Trust Bob, these little things make a big difference.
Bob's Two Cents
Here at CARFIX, we know how important good brakes are for your Mitsubishi Magna or Diamante. Worn rotors don't just make things unsafe, they can also chew through your new brake pads in no time. We reckon it's a no-brainer to swap out your rotors when you're fitting new pads. It'll keep everything running sweet and your brakes working like they should. RDA RDA421's a top choice, known for being tough as nails and fitting just right. Head over to Bob's Shop for a yarn, and we'll get you sorted!
Fitment Notes
This rotor is made for various Mitsubishi Magna and Diamante models built between 1990 and 2003. Double-check your car's year, model, and engine size against the specs to be sure it's the right fit. There can be differences even within the same model range, so don't get caught out!
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🛠️ Bob's Pro Tip: Do the Job Right!
> GDB3045)](/parts/GDB3045) 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.