Item # PKM 044
NWP Piston Assembly (50mm) for Stihl 044, MS440 Chainsaws (Replaces 1128 030 2015)
$29.99
In Stock
Replacement big bore piston assembly for NWP. These piston assemblies are designed to fit NWP big bore kits only, and will not fit standard OEM cylinders. Piston assembly includes an oversized piston, rings, piston pin and circlips. Pistons have a thin coat of molybdenum on the skirt, which helps reduce friction and wear during initial break in period. The piston rings are made from ductile cast iron, so your chances of breaking them during installation are greatly reduced. We recommend replacing your cylinder gaskets and using a piston ring clamp set to help when changing a piston. Gaskets are sold separately.
Fits the Following Chainsaws
Stihl 044* (After S/N X 29 382 283), MS440
Bore 50mm
Rings 50mm x 1.2mm Ductile Split Groove
Piston Pin 12mm x 7mm x 33mm
Circlips 12mm
Head Type Flat
Height 39.5mm
Compression/Pin Top to Top of Piston 15.5mm
Compression/Pin Center to Top of Piston 21.5mm
Important Note *Older 044 Chainsaws (Before Serial Number X 29 382 283) Have a 10mm Wrist Pin. This Piston Will Not Fit Older Style Chainsaws. Please Check Before Ordering.
Stihl 044* (After S/N X 29 382 283), MS440
Bore 50mm
Rings 50mm x 1.2mm Ductile Split Groove
Piston Pin 12mm x 7mm x 33mm
Circlips 12mm
Head Type Flat
Height 39.5mm
Compression/Pin Top to Top of Piston 15.5mm
Compression/Pin Center to Top of Piston 21.5mm
Important Note *Older 044 Chainsaws (Before Serial Number X 29 382 283) Have a 10mm Wrist Pin. This Piston Will Not Fit Older Style Chainsaws. Please Check Before Ordering.
Specs
Fits the Following Chainsaws
Stihl 044* (After S/N X 29 382 283), MS440
Bore 50mm
Rings 50mm x 1.2mm Ductile Split Groove
Piston Pin 12mm x 7mm x 33mm
Circlips 12mm
Head Type Flat
Height 39.5mm
Compression/Pin Top to Top of Piston 15.5mm
Compression/Pin Center to Top of Piston 21.5mm
Important Note *Older 044 Chainsaws (Before Serial Number X 29 382 283) Have a 10mm Wrist Pin. This Piston Will Not Fit Older Style Chainsaws. Please Check Before Ordering.
Stihl 044* (After S/N X 29 382 283), MS440
Bore 50mm
Rings 50mm x 1.2mm Ductile Split Groove
Piston Pin 12mm x 7mm x 33mm
Circlips 12mm
Head Type Flat
Height 39.5mm
Compression/Pin Top to Top of Piston 15.5mm
Compression/Pin Center to Top of Piston 21.5mm
Important Note *Older 044 Chainsaws (Before Serial Number X 29 382 283) Have a 10mm Wrist Pin. This Piston Will Not Fit Older Style Chainsaws. Please Check Before Ordering.
Warranty
1 Year Warranty