Technical documents
Aero4-DS Radial Mount Caliper 120-14440 by Wilwood
$645.77
Wilwood Aero4-DS Radial Mount caliper, part 120-14440
The Wilwood 120-14440 caliper is supplied as a single unit, part number 120-14440. Choose your finish above and the part number and price update to match — all 2 factory finishes are listed here.
| Caliper specification | |
|---|---|
| Model | Aero4-DS Radial Mount |
| Pistons | 4 |
| Total piston area | 1.98 sq in |
| Piston material | Stainless |
| Dust boot | Yes |
| Mount type | Radial |
| Mount centre | 7.09 in |
| Side | Universal |
| Manufacturer | Wilwood |
Rotor clearance
| Rotor compatibility | |
|---|---|
| Nominal rotor width | 1.10 in |
| Rotor width range | 1.00 to 1.10 in |
| Nominal rotor diameter | 15.00 in |
| Rotor diameter range | 12.19 to 15.00 in |
Check your rotor against the width range before ordering. A caliper built for a narrower rotor will not close over a thicker one.
Finishes and part numbers
| Finish | Wilwood part number |
|---|---|
| Black | 120-14440-BK |
| Red | 120-14440-RD |
Dimensions and technical drawing
Full dimensional drawing for the Aero4-DS Radial Mount body. Dimensions are given in inches with millimetres in brackets. Click the drawing to open it full size.
Matching brake pads
This caliper accepts 6617 plate pads. We stock the full compound range in that plate: 6617 Plate Racing Brake Pads by Wilwood — available in BP-10, BP-20, BP-30, PolyMatrix and other Wilwood race compounds. See all racing brake pads.
Mounting hardware and plumbing
Calipers ship without mounting bolts, brackets or fluid lines. Browse caliper parts and hardware for bolt kits, bleed screws, seals and rebuild parts, and brake lines and fittings for the -3 AN hoses, banjo bolts and adapters needed to plumb the caliper.
Other calipers in the Aero4-DS Radial Mount family
Browse the complete range of Wilwood racing calipers.







