●Replacement manufacturer part number: 4203 141 0301 ●Fits STHIL blower BR340 BR340L BR380 BR420 BR420C SR340 SR420 ●Air Filter length 5-1/8" x width 3-1/2" x height 1-1/2" ●Package include: 1 air filter, 1 fuel filter, 1 spark plug ●Save yourself the hassle of returns and exchanges by double-checking your engines model number and part number before ordering any parts.