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Twin Air Standard Air Filter (158059)

Part # 158059
Item #631578
Fits 15 motorcycles
  • TM Racing
    • 250 MX-Fi · 2001–2012
    • 250F EN · 2001–2012
    • 250F Enduro · 2001–2012
    • 300 E/XC · 2001–2012
    • 300 EN · 2008–2012
    • 300 MX · 2008–2012
    • 400 4-T Enduro · 2001–2005
    • 400 EN · 2001–2005
    • 400 MX · 2001–2005
    • 450 MX-Fi · 2006–2012
    • 450F Enduro · 2006–2012
    • 530 EN-F · 2001–2012
    • 530 MX-F · 2001–2012
    • 530F Enduro · 2001–2012
    • 85 MX · 2008–2012
$29.08
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  • Backordered, shipping soon
  • Flat $10 U.S. shipping, free over $100
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WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov
Twin Air Standard Air Filter — Tm Racing 250 MX-Fi (2001-2012), Tm Racing 250F EN (2001-2012) + 13 more
Product Details

Twin Air's Standard Air Filter is the dual-stage foam filter that's been the benchmark in dirt-bike air filtration for decades. Two fused layers of open-pore foam — coarse outer, fine inner — trap airborne dust, grime, and sand while keeping airflow high. Assembled by hand and inspected for fit, with model-specific molds for 1500+ motorcycles dating back to 1965.

  • Dual-stage open-cell foam — outer catches grit, inner traps fine particles
  • Hand-assembled and inspected, with a greaseless sealing ring
  • Washable and reusable — 30+ cleaning cycles is typical
  • Model-specific fit — no universal sizes
  • Drops into the OEM airbox

Fitment

TM Racing: 250 MX-Fi 2001–2012 · 250F EN 2001–2012 · 250F Enduro 2001–2012 · 300 E/XC 2001–2012 · 300 EN 2008–2012 · 300 MX 2008–2012 · 400 4-T Enduro 2001–2005 · 400 EN 2001–2005 · 400 MX 2001–2005 · 450 MX-Fi 2006–2012 · 450F Enduro 2006–2012 · 530 EN-F 2001–2012 · 530 MX-F 2001–2012 · 530F Enduro 2001–2012 · 85 MX 2008–2012

Specifications

Filter TypeFoam
ConstructionDual-layer, fused
Outer FoamCoarse, open-pore
Inner FoamFine pore
Pre-OiledYes
Filter OilTwin Air BIO Foam Filter Oil
SealingGreaseless flat foam sealing ring
Backfire ResistanceYes
Best ForOff-road / Trail, MX / Motocross

Verified from Garamoto’s catalog & fitment data.

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