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All Balls Master Cylinder Rebuild Kit (18-1112)

Part # 18-1112
Item #136724
Fits 14 motorcycles
  • Arctic Cat
    • 300 2x4 · 2010–2016 (rear)
    • 300 DVX · 2010–2015 (rear)
    • Alterra 300 · 2017–2024 (rear)
  • Gas-Gas
    • EC125 · 2004–2008 (rear)
    • EC200 · 2004–2008 (rear)
    • EC250 · 2004–2008 (rear)
    • EC300 · 2004–2008 (rear)
    • EC450FSE · 2005–2006 (rear)
    • EC450FSR · 2007–2008 (rear)
    • MC125 · 2004–2008 (rear)
    • MC250 · 2004–2008 (rear)
    • SM125 · 2005–2008 (rear)
    • SM250 · 2004–2005 (rear)
  • Honda
    • CB750 Hornet · 2025 (rear)

⚠ Brake parts are caliper-specific. The same model can use different calipers by trim or year (base vs SP, ABS, Brembo vs stock), and catalog data isn't always exact. Confirm this fits your bike's actual caliper before ordering.

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WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov
All Balls Racing Master Cylinder Rebuild Kit — Gas-Gas EC125 (2004-2008) + 10 more
Product Details

Caliper pistons stuck, sticky lever feel, or a creeping low fluid level with no visible leak — the rubber seals inside the caliper or master cylinder are toast. All Balls rebuild kits include every rubber part you need to make ONE caliper or master cylinder new again: piston seals, dust boots, bleeder caps, pad pins, copper crush washers. OEM-spec EPDM rubber, bike-specific fitment.

Kit fits the bikes listed below. Confirm whether you need front or rear (some bikes share a kit, most don't).

Kit contents:

  • 1x Boot
  • 2x Cup Seal, Master Cylinder
  • 1x O'Ring
  • 2x Screw
  • 1x Snap Ring
  • 1x Spring
  • 2x Washer

Fitment

Arctic Cat: 300 2x4 2010–2016 (rear) · 300 DVX 2010–2015 (rear) · Alterra 300 2017–2024 (rear)

Gas-Gas: EC125 2004–2008 (rear) · EC200 2004–2008 (rear) · EC250 2004–2008 (rear) · EC300 2004–2008 (rear) · EC450FSE 2005–2006 (rear) · EC450FSR 2007–2008 (rear) · MC125 2004–2008 (rear) · MC250 2004–2008 (rear) · SM125 2005–2008 (rear) · SM250 2004–2005 (rear)

Honda: CB750 Hornet 2025 (rear)

Brake parts are caliper-specific — the same model can use different calipers by trim or year. Confirm this fits your bike’s actual caliper before ordering.

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