NPR of America
NPR Performance Piston Ring Set V8 3.937 Bore 1.5x1.5x3.0
NPR Performance Piston Ring Set V8 3.937 Bore 1.5x1.5x3.0
SKU:NPR20-GNHD3937K8
Inventory: 3 in stock
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NPR of America piston ring sets deliver OEM-quality sealing, durability, and performance for import and domestic engine applications. Manufactured with precision engineering and advanced materials, NPR rings help maintain compression, reduce oil consumption, and extend engine life. Trusted by engine builders and rebuilders worldwide, NPR piston rings are ideal for stock rebuilds, street-performance engines, and daily driven vehicles that require long-lasting reliability and consistent performance.
Piston Rings - American V8 Engine Ring Series - 3.937 in Bore - 1.5 x 1.5 x 3.0 mm Thick - Standard Tension - Steel - Nitride - 8-Cylinder - Kit - Brand: NPR of America - Part Number: 20-GNHD3937K8
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Brand
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NPR Piston Rings
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Part Number
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20-GNHD3937K8
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Product Line
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American V8 Engine Ring Series
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File Fit
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No
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Bore (standard)
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3.937 in
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Bore (Metric)
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100.00 mm
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Gapless Top Ring
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No
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Gapless Second Ring
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No
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Tension
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Standard
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Top Ring Included
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Yes
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Top Ring Thickness
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1.5 mm
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Top Ring Material
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Steel
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Top Ring Coating
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Nitride
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Second Ring Included
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Yes
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Second Ring Thickness
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1.5 mm
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Second Ring Material
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Iron
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Second Ring Coating
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Phosphate
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Oil Ring Thickness
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3.0 mm
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Cylinder Set
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8
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Oil Ring Material
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Stainless
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Oil Ring Coating
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Chrome
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Quantity
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Kit
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