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Wilwood Caliper-Dynapro Single LW 3.25in Mount 1.75in Pistons .38in Disc

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The Wilwood DynaPro Single Lightweight (DPS-LW) is a two-piston billet aluminum caliper built for a 3.25 in mount, 1.75 in pistons, and 0.38 in rotors. The manufacturer calls it the newest generation of calipers available as an upgrade or replacement for applications previously using the Dynalite Single (DLS) series. It uses heavy-wall stainless steel pistons that resist corrosion and slow heat transfer from the pads into the fluid and seals. That combination is the main reason to choose it over a stock single-piston caliper or a cheaper alternative for track or drag use, where repeated hard stops make fade and seal heat a real concern. The Quick-E-Clip pad retainers let you service pads without removing the caliper, and the manufacturer says they hold pads more securely than the single Quick-Clip pin and 7012-type pads used on earlier DLS models.

Searches for a 3.25 inch mount 1.75 inch piston 0.38 rotor billet caliper, a DPS-LW two-piston caliper, or a Dynapro single LW replacement for DLS usually point to this exact part number. Before ordering, confirm the mounting bracket, rotor, and pad setup for your vehicle, since the manufacturer's install guidance assumes the bracket and rotor are matched to the caliper. Plan on bleeding the system with a catch bottle, bedding the pads, and setting pad-to-rotor alignment with shims. The manufacturer recommends Wilwood Hi-Temp 570 or EXP 600 Plus fluid for Dynapro systems, with EXP 600 Plus for severe or sustained high-heat use.

  • Caliper Series: DynaPro Single Lightweight (DPS-LW)
  • Manufacturer Part Number: 120-10188
  • Piston Count: 2
  • Piston Diameter: 1.75 in
  • Piston Material: Stainless steel
  • Piston Area: 2.40 sq in
  • Mount Spacing: 3.25 in
  • Rotor Width: 0.38 in
  • Body Material: Billet aluminum
  • Pad Retention: Quick-E-Clip pad retainers

FAQ:

Does the DPS-LW replace older Dynalite Single (DLS) calipers?

The manufacturer describes the DynaPro Single LW as the newest generation available as an upgrade or replacement for applications that previously used the DLS series. Confirm vehicle-specific fitment with the manufacturer before ordering, since the bracket and rotor must match.

Can I change the pads without removing the caliper?

Yes. The manufacturer states that the Quick-E-Clip pad retainers allow pad service without caliper removal, and that they retain pads more firmly than the single Quick-Clip pin and 7012-type pads used on previous DLS models.

What brake fluid does the manufacturer recommend?

The manufacturer's assembly sheets for Dynapro kits recommend Wilwood Hi-Temp 570 or EXP 600 Plus fluid for optimum performance. For severe braking or sustained high heat, the manufacturer recommends EXP 600 Plus.

Installing it yourself

This is a moderate-difficulty job for someone comfortable with brake work. The manufacturer's instructions say installation should be performed by persons experienced with disc brake systems. Expect to need standard hand tools, a bleed hose with catch bottle, fresh fluid, and a method for bedding pads. Check that the pad's outer radius lines up with the rotor face, and add or remove shims between the caliper and mount bracket to correct alignment. Bleed the system starting with the caliper farthest from the master cylinder, and check for leaks afterward. If the pedal still goes to the floor after repeated bleeding, the manufacturer notes that a master cylinder with a larger bore may be required.

  • MPN: 120-10188
  • Manufactured by: Wilwood
  • Units per SKU: 1
  • In Stock: 12, On Order: 21
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120-10188
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Wilwood
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