Accossato braided brake hose kit AGF9431 for Yamaha YZ250F (2014–2020), sheath colour range
02 · Data & docs

The facts.

Technical data
Part numberAGF9431
TypeBraided brake hose kit
LayoutStandard layout (S)
Number of hoses2 hoses
SheathAeronautical braid, stainless steel
FittingsStainless steel, or painted stainless in red, green, blue, black or gold
Sheath colours20 options
FitmentYamaha YZ250F (2014–2020)
Road approvalNo ABE or parts certificate documented
DescriptionThe whole story▼

Spanning 2014 to 2020, this Accossato kit fits the Yamaha YZ250F, the four-stroke motocrosser Yamaha sold alongside the two-stroke YZ250 of the same era, with two braided hoses covering the front-and-rear circuit the factory specified. Four-stroke power delivery asks a slightly different style of braking than a two-stroke, with engine compression doing more of the slowing on its own, but the lever still needs to be trustworthy for the moments the brakes alone have to do the work, which is where a hose that has not softened over several seasons of racing earns its keep. A rider switching between the two-stroke YZ250 and this four-stroke 250F within the same season will find the brake lever behaves consistently on both once each carries its own braided hose.

Key Features

  • Two-hose set covering front and rear brake lines
  • Covers the YZ250F across its 2014–2020 production run
  • Aeronautical braid sheath in 20 colours
  • Painted stainless steel fittings in red, green, blue, black or gold
  • Supplied as a complete braided hose kit under this part number

Construction and Material Quality

Front and rear lines alike wrap the inner hose in stainless braid, finishing in fittings turned from stainless steel that this listing offers bare or painted in five shades. Picking a bright colour here is a popular move on a motocross bike, since the lever end tends to stay visible even once the rest of the machine is caked in mud.

Consistent Fitment Over a Long Run

Because Yamaha did not change the YZ250F's brake hardware significantly between 2014 and 2020, this kit applies across the whole period rather than being split by model year, unlike the 2021–2023 and 2024–2026 generations that followed it.

Fitment and Compatibility

This kit fits the Yamaha YZ250F built between 2014 and 2020. For the 2021–2023 YZ250F, which also covers the YZ450F of those years, Accossato lists a single-hose kit under part AGA0276, and for the 2024–2026 YZ250F, including its anniversary editions, a two-hose kit under part AGA0312. Checking the exact build year against Accossato's fitment tab is worthwhile given how many separate configurations this nameplate has carried over the years.

Road Approval

Accossato documents no ABE or parts certificate for this kit, so it is intended for track and competition use.

Scope of Delivery

The kit contains 2 braided hoses for the Standard layout. Fittings such as banjo bolts and copper sealing washers are not listed as included, so it is worth checking the connecting hardware already on the bike before starting the job.

Specifications

  • Part number: AGF9431
  • Type: Braided brake hose kit
  • Layout: Standard layout (S)
  • Number of hoses: 2 hoses
  • Sheath: Aeronautical braid, stainless steel
  • Fittings: Stainless steel, or painted stainless in red, green, blue, black or gold
  • Sheath colours: 20 options
  • Fitment: Yamaha YZ250F (2014–2020)
  • Road approval: No ABE or parts certificate documented
What's includedEverything in the box▼
  • 2x Accossato braided brake hose
DownloadsInstructions▼
FitmentWhich bikes this fits▼
  • Yamaha YZ250F (2014–2020)
07 · Support

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