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Chainsaw

Poulan Pro PP4218A

2-Stroke

See also: PP4620AV — parts are often interchangeable within this family.

Spark Plug

OEM952030150(Champion RCJ-7Y; 0.025" gap)Same plug used across Poulan Pro 42cc family

Air Filter

OEM530057869Fits PP4218A and PP4218AV variants; check shape before ordering — some variants use 530057925
BrandPart #
Stens605-362Buy on Amazon →

Fuel Filter

OEM530095646In-tank fuel pick-up assembly
BrandPart #
Stens610-035Buy on Amazon →

Carburetor

OEM545070601Zama W26 (C1M-W26 series); also listed as C1M-W26A/B/C variants

Recoil Starter

OEM530071966Kit-EPS Starter Pulley; includes shoulder screw, hub, and spring (refs 20,21,22,30)
BrandPart #

Ignition Coil

OEM545115801Module-Ignition; specific to PP4218A (differs from PP4620AV)
BrandPart #

Primer Bulb

OEM530047721Snap-in purge bulb

Fuel Line Kit

OEM580727101Includes fuel line and fitting; listed twice in IPL (refs 5 and 17)
BrandPart #
Stens115-627Buy on Amazon →

Chain

OEM952051338(18", 3/8" LP pitch, .050" gauge, 62 drive links)Also superseded by 581562301; verify drive link count matches bar
BrandPart #
Oregon91PX062GBuy on Amazon →

Guide Bar

OEM952044689(18", 3/8" LP pitch, .050" gauge)