What size is the caliper bolt on a Ford Fiesta?
The caliper mounting bolts are typically M12 x 1.75 for the front calipers and M10 x 1.5 for the rear calipers, but exact sizes can vary by generation and market; always verify with the official workshop manual or Ford ETIS using your VIN.
The Ford Fiesta has gone through several generations with varying brake hardware. Front calipers are generally secured with larger bolts than the rear, and the precise thread size can differ between model years and regions. To be sure you have the correct bolt size for your specific car, consult the factory documentation for your VIN or measure the existing bolts if safe to do so against standard metric sizes.
Common caliper bolt sizes by position
Here are the sizes you’re most likely to encounter on contemporary Ford Fiests. Exact sizes depend on year and market, so verify against your vehicle’s documentation.
- Front brake caliper mounting bolts: typically M12 × 1.75 threaded bolts (the fasteners that attach the caliper to the caliper bracket).
- Rear brake caliper mounting bolts: typically M10 × 1.5 threaded bolts (for the rear caliper mounting).
Because sizes can vary, always confirm with your vehicle’s service manual, Ford ETIS, or official parts catalogs for your VIN to avoid mismatches or cross-threading.
How to verify the exact size for your Fiesta
To ensure you order or replace the correct bolts, use these steps to confirm the precise size for your car:
- Look up your vehicle's brake specifications in the Ford workshop manual or Ford ETIS using the VIN; it will specify front and rear caliper bolt sizes.
- Physically inspect the bolts you plan to replace and measure the threaded portion with a caliper to determine the diameter (M-size) and thread pitch.
- If you don’t have the manual on hand, compare the existing bolts to standard metric sizes (M10 vs M12) and use a thread gauge to confirm the pitch (1.5 or 1.75).
- When purchasing replacements, choose hardware of the correct grade and finish as recommended by Ford, and follow any locknut or threadlocker requirements indicated in the manual.
- When in doubt, consult a qualified technician or reference the official Ford parts catalog for your VIN to ensure compatibility.
Ensuring the correct bolt size is essential for braking safety and proper function. If you’re not confident in identifying the size yourself, seek professional help.
Summary
On most modern Ford Fiests, front caliper mounting bolts are typically M12 x 1.75 and rear caliper mounting bolts are typically M10 x 1.5, but exact sizes vary by generation and market. Always verify against your VIN with Ford ETIS or the official workshop manual, and refer to the correct torque specifications and hardware grade when replacing caliper bolts.
