HASTINGS MANUFACTURING
More Information for HASTINGS MANUFACTURING 4346
{Alternate Inventory Numbers: 4346.040, 4346.020, 4346.030, 4346060}
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HASTINGS MANUFACTURING 4346  
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  • 0.020" Oversize (Only 1 Remaining) ($41.99) Warehouse
  • 0.040" Oversize ($41.99) Warehouse
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HASTINGS MANUFACTURING 4346 Specifications
1st Oil Groove4.00 MM
1st Oil Ring MaterialSteel Rail / Stainless Expander
1st Oil Ring Surface TreatmentChrome Rail
2nd Groove1.50 MM
2nd Ring MaterialGrey Iron
2nd Ring Surface TreatmentPhosphate
Engine Bore (in.)4.000 in.
Engine Bore (MM)101.60 MM
Top Groove1.50 MM
Top Ring MaterialGrey Iron
Top Ring Surface TreatmentPhosphate
Full Set; Plain Cast Top Ring
Hastings Manufacturing designs and manufactures piston rings for the world's most recognizable and trusted brands, including Chrysler, General Motors, Harley-Davidson, Ingersoll-Rand, Emerson, MTD, and many other Tier One manufacturers.

For over 100 years, they've never wavered from their first and only mission — to make the best piston ring possible. Hastings manufactures a bold and broad offering of piston rings, one that spans thousands of applications for virtually any engine. Their rings function in sets (usually a top compression ring, second groove compression ring, and oil control ring) and range from 1.125" to 8.875" bores.

The Hastings Story



Piston Ring Surface Treatment Advantages

Hastings coatings offer lower friction, longer life, and lower emissions. Depending on the application, coatings may be applied to the top compression ring or the whole set.

MOLY (PLASMA SPRAY MOLYBDENUM)
  • Hard, wear resistant, and anti-scuffing
  • Prevents bore galling/scuffing when using hi-tensile iron and steel compression rings
  • Its porosity traps lubricating oil
  • Can be used with all bore materials
CHROME / TRIPLE CHROME
  • Hard, wears very well, lower scuff resistance
  • Prevents bore galling/scuffing when using hi-tensile iron and steel rings
  • Preferred over moly in dusty environments
  • Primarily for cast iron bores, cannot be used on chrome or Nikasil bores
MANGANESE PHOSPHATE / BLACK OXIDE
  • Promotes ring seating on dry start ups
  • Is rust preventative
  • Prevents corrosion and eliminates galling of rings during startup and break-in
  • Used on iron and steel compression rings
NITRIDE
  • Hard, wear resistant, and low friction
  • Hardens all outer surfaces of the ring for increased face and side wear resistance
  • More environmentally friendly than chrome plating
  • Can be used to harden Flex-Vent expanders and rails
CERAMIC PVD
  • Very hard, very high scuff resistance, very low coefficient of friction
  • Provides high scuff, heat resistance, and excellent sealing
  • Usually done in conjunction with Gas-Nitride on stainless steel rings
  • Compatible with Nikasil-coated bores


For additional product and installation videos, check the Hastings Youtube Channel.


HASTINGS MANUFACTURING Warranty Information:
12 Months