Worn brake pads compromise stopping power, damage rotors, and increase accident risks. The
1321517 and 3M512K021AA are OEM-grade brake pads engineered for Ford, Mazda, and Volvo vehicles, delivering quiet operation, consistent friction, and rotor protection. This guide covers compatibility, technical specs, installation tips, and why OEM pads outperform aftermarket alternatives.
Why
1321517 & 3M512K021AA Brake Pads Matter
These OEM pads are precision-designed for European and North American models, providing:
Optimal Stopping Power: Friction coefficient of 0.42–0.48μ (cold/hot) for reliable performance.
Noise Reduction: Integrated shims and chamfered edges eliminate squealing.
Rotor Protection: Low-metallic compound minimizes scoring and heat cracks.
Longevity: 40,000–60,000-mile lifespan vs. 25,000–35,000 miles for aftermarket pads.
Key Advantages Over Aftermarket:
Factory Fitment: Exact match for caliper brackets (no modifications needed).
Heat Resistance: Withstands 1,000°F+ without fade (aftermarket pads degrade at 800°F).
Warranty Compliance: Non-OEM pads may void suspension/brake warranties.
Compatible Vehicles
Ford:
Focus (2017–2022) – Front pads (3M512K021AA).
Escape (2019–2023) – Rear pads (1321517).
Transit Connect (2014–2023) – Front & rear.
Mazda:
CX-5 (2017–2023) – Front pads (3M512K021AA).
Mazda3 (2019–2023) – Rear pads (1321517).
CX-30 (2020–2023) – Front & rear.
Volvo:
XC60 (2018–2023) – Front pads (1321517).
S60 (2016–2023) – Rear pads (3M512K021AA).
V90 (2017–2023) – Front & rear.
Note: Verify fitment via VIN or OEM parts catalogs.
Technical Specifications
Part Numbers: 1321517 (Volvo/Mazda), 3M512K021AA (Ford).
Material: Low-metallic NAO (Non-Asbestos Organic) compound.
Thickness: 12mm (new), 3mm wear indicator triggers replacement.
Shims: Pre-attached stainless steel with noise-dampening adhesive.
Hardware Kit: Includes anti-rattle clips and lubricant (included with OEM pads).
Symptoms of Worn Brake Pads
Squealing/Grinding: Metal-on-metal contact from worn friction material.
Vibration: Warped rotors due to uneven pad deposits.
Long Stopping Distance: Reduced friction coefficient.
Dashboard Warnings: Brake pad wear sensor triggers alerts (Volvo models).
Uneven Wear: Stuck caliper pins or misaligned brackets.
Diagnostic Tip: Measure pad thickness with a caliper; replace if ≤3mm.
Installation Guidelines
Preparation:
Lift the vehicle and remove wheels.
Clean calipers and rotor surfaces with brake cleaner.
Pad Replacement:
Compress caliper piston using a C-clamp.
Remove old pads and hardware.
Install new 1321517/3M512K021AA pads with OEM shims and clips.
Apply high-temperature grease to caliper pins.
Post-Installation:
Bed-in pads with 5–10 gradual stops from 30 mph to 10 mph.
Avoid hard braking for the first 200 miles.
Why Choose Genuine OEM Brake Pads?
Safety Compliance: Meets ECE R90 and FMVSS 135 standards.
Corrosion Resistance: Zinc-plated backing plates prevent rust.
Warranty: 2-year/unlimited-mileage coverage (aftermarket: 1 year).
Risks of Non-OEM Pads:
Noise Issues: Poorly designed shims cause squeaks.
Rotor Damage: Abrasive compounds accelerate wear.
ABS Malfunction: Incorrect pad thickness confuses wheel speed sensors.
Where to Buy Authentic 1321517 & 3M512K021AA Pads
Purchase from authorized dealers or certified suppliers:
Ford: FordPartsGiant, TascaParts.
Mazda: MazdaSwag, PriorityMazdaParts.
Volvo: FCP Euro, VolvoPartsWebstore.
Verify authenticity via:
OEM packaging with barcodes.
Laser-etched part numbers on pad edges.
Warranty documentation.
Conclusion
The 1321517 and 3M512K021AA brake pads deliver OEM-engineered safety, durability, and noise-free performance for Ford, Mazda, and Volvo vehicles. Choosing genuine pads ensures reliable braking, protects rotors, and preserves your vehicle’s resale value.
Keywords: Brake Pad 1321517, 3M512K021AA, Ford Mazda Volvo Brake Pads
FAQ
Q: Are these pads ceramic or semi-metallic?
A: Low-metallic NAO compound – quieter than semi-metallic, better heat dissipation than ceramic.
Q: Can I replace only one axle’s pads?
A: No. Replace front or rear pairs to maintain balanced braking.
Q: Do these include wear sensors?
A: Yes (Volvo models); Ford/Mazda pads include sensor clips.
Q: How long do OEM pads last vs. aftermarket?
A: OEM: 40,000–60,000 miles; Aftermarket: 25,000–35,000 miles.
Q: Price difference?
A: OEM:
90
–
90–150 per axle; Aftermarket:
40
–
40–80 (lower quality).
For professional installation, consult a certified technician.
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