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  • Bore (in.)
  • Bore (mm)
  • Piston and Ring Oversize (mm)
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  • Second Ring Material
  • Second Ring Facing Material
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United Engine & Machine

United Engine and Machine Piston Ring Sets

4.42 out of 5 stars 36 Customer Reviews

United Engine and Machine piston ring sets are made from quality materials. They're available in sizes to seal many different performance engines, will help protect against oil blowby, and feature standard ring end gaps for an easy installation.

Showing In Stock Items. Show All 47 Items.

Results 1 - 7 of 7

United Engine and Machine Piston Ring Sets 4000AM8.030

Made in the USA United Engine and Machine Piston Ring Sets 4000AM8.030

United Engine and Machine Piston Ring Sets 4000AM8.030

Piston Rings, 4.030 in. Bore, 5/64 in., 5/64 in., 3/16 in., Iron, Moly, 8-Cylinder, Set

Part Number: UEM-4000AM8-030

4.9 out of 5 stars ( 10 )

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United Engine and Machine Piston Ring Sets 4125AM8.030

Made in the USA United Engine and Machine Piston Ring Sets 4125AM8.030

United Engine and Machine Piston Ring Sets 4125AM8.030

Piston Rings, 4.155 in. Bore, 5/64 in., 5/64 in., 3/16 in., Iron, Moly, 8-Cylinder, Set

Part Number: UEM-4125AM8-030

5.0 out of 5 stars ( 1 )

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United Engine and Machine Piston Ring Sets 22003.25MM

United Engine and Machine Piston Ring Sets 22003.25MM

United Engine and Machine Piston Ring Sets 22003.25MM

PISTON RING SET

Part Number: UEM-22003-25MM

Not Yet Reviewed

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United Engine and Machine Piston Ring Sets 4000AM8.060

Made in the USA United Engine and Machine Piston Ring Sets 4000AM8.060

United Engine and Machine Piston Ring Sets 4000AM8.060

Piston Rings, 4.060 in. Bore, 5/64 in., 5/64 in., 3/16 in., Iron, Moly, 8-Cylinder, Set

Part Number: UEM-4000AM8-060

5.0 out of 5 stars ( 2 )

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United Engine and Machine Piston Ring Sets 4000AM8.020

Made in the USA United Engine and Machine Piston Ring Sets 4000AM8.020

United Engine and Machine Piston Ring Sets 4000AM8.020

Piston Rings, 4.020 in. Bore, 5/64 in., 5/64 in., 3/16 in., Iron, Moly, 8-Cylinder, Set

Part Number: UEM-4000AM8-020

5.0 out of 5 stars ( 2 )

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United Engine and Machine Piston Ring Sets 4000AM8.040

Made in the USA United Engine and Machine Piston Ring Sets 4000AM8.040

United Engine and Machine Piston Ring Sets 4000AM8.040

Piston Rings, 4.040 in. Bore, 5/64 in., 5/64 in., 3/16 in., Iron, Moly, 8-Cylinder, Set

Part Number: UEM-4000AM8-040

5.0 out of 5 stars ( 1 )

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United Engine and Machine Piston Ring Sets 3910AM8.040

Made in the USA United Engine and Machine Piston Ring Sets 3910AM8.040

United Engine and Machine Piston Ring Sets 3910AM8.040

Piston Rings, 3.950 in. Bore, 5/64 in., 5/64 in., 3/16 in., Iron, Moly, 8-Cylinder, Set

Part Number: UEM-3910AM8-040

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