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Wilwood 120-6804 Forged Dynalite Caliper, 1.38 Inch Piston / 1.25 Disc

Specs
Centerline of Holes:
5.25
Material Type:
Aluminum
Overall Length:
7.01
Weight:
3.40
Color:
Black
Sold in Quantity:
Each
Finish:
Anodized
Thread Pitch:
1/8-27 NPT
Bore Size:
1.38
Mounted Height:
2.03
Rotor Diameter:
13.06
Piston Diameter:
1.38
Caliper Pistons:
Four
Mounting Side:
Universal
MFG. Part #:
120-6804
Rotor Thickness:
1.25
Garage Sale:
No
Caliper Mounting Type:
Lug
Bore 2 Size:
1.38
Total Piston Area:
3.00
Mount Hole Size:
0.39
Pad Area:
6.36
Pad Volume:
2.10
Wilwood 120-6804 Forged Dynalite Caliper, 1.38 Inch Piston / 1.25 DiscWilwood 120-6804 Forged Dynalite Caliper, 1.38 Inch Piston / 1.25 Disc
Wilwood 120-6804 Forged Dynalite Caliper, 1.38 Inch Piston / 1.25 Disc

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Wilwood 120-6804 Forged Dynalite Caliper, 1.38 Inch Piston / 1.25 Disc

Details

Reviews

Q & A

What's in the Box

The Forged Billet Dynalite has wide spread application over many forms over motorsports. It serves as the base model in the majority of Wilwood's Bolt-On Disc Brake Kits. The latest applied developments and innovations in caliper design and manufacturing processes have resulted in substantial improvements in strength and performance over all comparable models.

Get a guaranteed taller pedal and better stopping power with these calipers! New forged design for rotors measuring 10" - 13.06" diameter. Includes 4 stainless steel pistons and a 1/8" NPT inlet. Mounting centers are 5-1/4" apart.

Pads not included.

Catalog Correction:  These calipers will work with 10" - 13.06" O.D. rotors.

Application

Driving Environment / Application Duty
  • Street Rods                (Heavy Duty)
  • Street Performance    (Heavy Duty)
  • Rally                           (Medium Duty)
  • Road Race                  (Medium Duty)
  • Late Model Dirt           (Heavy Duty)
  • Drag Racing               (Heavy Duty)
  • Northeast Modified     (Medium Duty)
  • Open Wheel               (Medium Duty)
  • Off Road                     (Medium Duty)

Notes

Features:

  • Bridge plates extend the service life of the caliper body & dampens vibrations
  • High temp seals and stainless steel pistons to eliminate corrosion and retard heat transfer from the pads
  • Internal fluid passages eliminate the need for external tubes
  • Four corner bleed screws allow one caliper to be mounted in any front, rear, right, or left position
  • Black anodized finish to resist corrosion
  • Wilwood FDL Data Sheet (PDF)
  • Inlet:  1/8" NPT
  • Mounting Centers:  5-1/4"
  • Mount Hole Size:   0.39"
  • Mount Side:  Universal

 

You may also be interested in:

Wilwood 120-6814 Forged Dynalite Caliper, 1.75 Inch Piston / 1.25 Disc
                        

The Forged Billet Dynalite is widely used in Road Race, Late Model Dirt, and Open Wheel motorsports. The latest applied developments and innovations in caliper design and manufacturing processes have resulted in substantial improvements in strength and performance over all comparable models.

Forged Dynalites are the strongest calipers in the class, with weights starting at 2.80 pounds. Without even considering the overall greater strength and reliability of the forging, the reduced deflection tendencies and the resulting decrease in fluid volume displacement translate to increased clamping efficiency with less pedal travel. The bottom line is a taller pedal and better stopping power.

  • Pistion Count: 4
  • Area (in²): 4.80
  • Piston Type: Stainless
  • Fits .75" - 1.25" wide by 10" - 13.06" diameter rotors
  • Pad Area (in²): 6.36 
  • Pad Volume (in³): 2.1
  • Mount Type: Lug
  • Mount Side: Universal
  • Weight(Lbs): 2.80
Wilwood 130-2658 Forged Dynalite O-Ring Seal Kit, 1.38 Inch
                        

Replacement parts for Wilwood Forged Dynalite calipers.

Wilwood 150-2391 Gator Double Quick Change Brake Pad
                        

Double Quick-Change pads are compatible with our Wilwood Forged Dynalite and Billet Dynalite calipers.

  • Medium friction, low to medium temperarture range.
  • Good cold torque response.
  • Low to moderate wear rate

Pads are sold each. (Will need 2 per caliper.)

Tech Tip:  Only use full metallic pads on coated rotors.

Brake Pad Brochure (PDF) 

Brake Pad Brand Guide (Link)

Learn how to properly Bed-In your brake pads by reading our tech article.  Bedding-In Brake Pad Procedure.

Brake Pad Characteristics  (PDF)  

Wilwood 150-8850 Poly-D 10 Double Quick Change Brake Pad
                        

Double Quick-Change pads are compatible with our Wilwood Forged Dynalite and Billet Dynalite calipers.

  • Medium friction, low to medium temperarture range.
  • Good cold torque response.
  • Low to moderate wear rate

Pads are sold each. (Will need 2 per caliper.)

Tech Tip:  Only use full metallic pads on coated rotors.

Brake Pad Brochure (PDF) 

Brake Pad Brand Guide (Link)

Learn how to properly Bed-In your brake pads by reading our tech article.  Bedding-In Brake Pad Procedure.

8353991 Instructions (PDF)  

Wilwood 15E-6096K Poly-E Double Quick Change Brake Pads, Set/4
                        

Double Quick-Change pads are compatible with our Wilwood Forged Dynalite and Billet Dynalite calipers.

  • Medium friction, low to medium temperarture range.
  • Good cold torque response.
  • Low to moderate wear rate

 Pads are sold as a set of 4.

Tech Tip:  Only use full metallic pads on coated rotors.

Brake Pad Brochure (PDF) 

Brake Pad Brand Guide (Link)

Learn how to properly Bed-In your brake pads by reading our tech article.  Bedding-In Brake Pad Procedure.

Speedway 338 Medium Double Quick Change Brake Pad
                        

Double Quick-Change pads are compatible with our Wilwood Forged Dynalite and Billet Dynalite calipers.

Pads are sold each. (Will need 2 per caliper.)

Tech Tip:  Only use full metallic pads on coated rotors.

Brake Pad Brand Guide (Link)

Learn how to properly Bed-In your brake pads by reading our tech article.  Bedding-In Brake Pad Procedure.