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Bore (in.)
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Piston and Ring Oversize (in.)
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File Fit
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Oil Ring Thickness
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Piston Rings
HARLEY-DAVIDSON FLSTF FAT BOY
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- In Stock Items. Ships Today. (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
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Bore (in.)
- 3.750 in. (9) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
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Bore (mm)
- 95.250mm (9) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 98.420mm (9) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 96.850mm (6) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 101.600mm (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Piston and Ring Oversize (in.)
- Standard (8) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 0.005 in. (6) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
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- 0.040 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Piston and Ring Oversize (mm)
- Standard (8) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 0.130mm (6) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 0.250mm (5) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 0.500mm (3) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
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- 1.000mm (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
File Fit
- No (20)
- Yes (6)
Top Ring Thickness
- 1.5mm (20) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 1/16 in. (6) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Top Ring Material
- Ductile iron (18) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Iron (6) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Steel (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Second Ring Thickness
- 1.5mm (20) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 1/16 in. (6) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Oil Ring Thickness
- 2.5mm (15) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 3.0mm (5) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 5/32 in. (4) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 3/16 in. (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Quantity
- Sold as 1 set. (17)
- Sold as 2 sets. (9)
Make/Model
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Filter Options
- Stock Replacement (26)
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HARLEY-DAVIDSON FLSTF FAT BOY Piston Rings

Showing In Stock Items. Show All 41 Items.

Individual Parts

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Results 1 - 25 of 26

Hastings Premium Ductile Ring Sets 2M4941

Hastings Premium Ductile Ring Sets 2M4941

Hastings Premium Ductile Ring Sets 2M4941

Piston Rings, Premium Ductile Ring Sets, Plasma-moly, 3.875 in. Bore, 1.5mm, 1.5mm, 2.5mm Thickness, L2, V2, Set

Part Number: HSN-2M4941

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Hastings Premium Ductile Ring Sets 2M5080010

Hastings Premium Ductile Ring Sets 2M5080010

Hastings Premium Ductile Ring Sets 2M5080010

Engine Piston Ring Set, 1-Cyl Ring Set; Plasma Moly

Part Number: HSN-2M5080010

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Hastings Premium Ductile Ring Sets 2M4950

Hastings Premium Ductile Ring Sets 2M4950

Hastings Premium Ductile Ring Sets 2M4950

Engine Piston Ring Set, 1-Cyl Ring Set; Plasma Moly

Part Number: HSN-2M4950

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 30, 2026 if ordered today

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Estimated Ship Date: Nov 30, 2026 if ordered today

Hastings Premium Ductile Ring Sets 2M4805

Hastings Premium Ductile Ring Sets 2M4805

Hastings Premium Ductile Ring Sets 2M4805

Engine Piston Ring Set, 2-Cyl Ring Set; Plasma Moly

Part Number: HSN-2M4805

Not Yet Reviewed

Estimated Ship Date: Nov 30, 2026 if ordered today

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Estimated Ship Date: Nov 30, 2026 if ordered today

Hastings Premium Ductile Ring Sets 2M4805S

Hastings Premium Ductile Ring Sets 2M4805S

Hastings Premium Ductile Ring Sets 2M4805S

Engine Piston Ring Set, Single Cyl Ring Set; Plasma Moly

Part Number: HSN-2M4805S

Not Yet Reviewed

Estimated Ship Date: Nov 30, 2026 if ordered today

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Estimated Ship Date: Nov 30, 2026 if ordered today

Hastings Premium Ductile Ring Sets 2M4950030

Hastings Premium Ductile Ring Sets 2M4950030

Hastings Premium Ductile Ring Sets 2M4950030

Engine Piston Ring Set, 1-Cyl Ring Set; Plasma Moly

Part Number: HSN-2M4950030

Not Yet Reviewed

Estimated Ship Date: Nov 30, 2026 if ordered today

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Estimated Ship Date: Nov 30, 2026 if ordered today

Hastings Premium Ductile Ring Sets 2M4942005

Hastings Premium Ductile Ring Sets 2M4942005

Hastings Premium Ductile Ring Sets 2M4942005

Engine Piston Ring Set, 2-Cyl Ring Set; Plasma Moly

Part Number: HSN-2M4942005

Not Yet Reviewed

Estimated Ship Date: Nov 30, 2026 if ordered today

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Estimated Ship Date: Nov 30, 2026 if ordered today

Hastings Premium Ductile Ring Sets 2M4950020

Hastings Premium Ductile Ring Sets 2M4950020

Hastings Premium Ductile Ring Sets 2M4950020

Engine Piston Ring Set, 1-Cyl Ring Set; Plasma Moly

Part Number: HSN-2M4950020

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 30, 2026 if ordered today

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Estimated Ship Date: Nov 30, 2026 if ordered today

Hastings Premium Ductile Ring Sets 2M4942S

Hastings Premium Ductile Ring Sets 2M4942S

Hastings Premium Ductile Ring Sets 2M4942S

Engine Piston Ring Set, Single Cyl Ring Set; Plasma Moly

Part Number: HSN-2M4942S

Not Yet Reviewed

Estimated Ship Date: Nov 30, 2026 if ordered today

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Estimated Ship Date: Nov 30, 2026 if ordered today

Hastings Premium Ductile Ring Sets 2M4941S010

Hastings Premium Ductile Ring Sets 2M4941S010

Hastings Premium Ductile Ring Sets 2M4941S010

Engine Piston Ring Set, Single Cyl Ring Set; Plasma Moly

Part Number: HSN-2M4941S010

Not Yet Reviewed

Estimated Ship Date: Nov 30, 2026 if ordered today

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Estimated Ship Date: Nov 30, 2026 if ordered today

Hastings Premium Ductile Ring Sets 2M4941S030

Hastings Premium Ductile Ring Sets 2M4941S030

Hastings Premium Ductile Ring Sets 2M4941S030

Engine Piston Ring Set, Single Cyl Ring Set; Plasma Moly

Part Number: HSN-2M4941S030

Not Yet Reviewed

Estimated Ship Date: Nov 30, 2026 if ordered today

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Estimated Ship Date: Nov 30, 2026 if ordered today

Hastings Premium Ductile Ring Sets 2M4941S005

Hastings Premium Ductile Ring Sets 2M4941S005

Hastings Premium Ductile Ring Sets 2M4941S005

Engine Piston Ring Set, Single Cyl Ring Set; Plasma Moly

Part Number: HSN-2M4941S005

Not Yet Reviewed

Estimated Ship Date: Nov 30, 2026 if ordered today

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Estimated Ship Date: Nov 30, 2026 if ordered today

Hastings Premium Ductile Ring Sets 2M4941040

Hastings Premium Ductile Ring Sets 2M4941040

Hastings Premium Ductile Ring Sets 2M4941040

Engine Piston Ring Set, 2-Cyl Ring Set; Plasma Moly

Part Number: HSN-2M4941040

Not Yet Reviewed

Estimated Ship Date: Nov 30, 2026 if ordered today

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Estimated Ship Date: Nov 30, 2026 if ordered today

Hastings Premium Ductile Ring Sets 2M4805005

Hastings Premium Ductile Ring Sets 2M4805005

Hastings Premium Ductile Ring Sets 2M4805005

Engine Piston Ring Set, 2-Cyl Ring Set; Plasma Moly

Part Number: HSN-2M4805005

Not Yet Reviewed

Estimated Ship Date: Nov 30, 2026 if ordered today

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Estimated Ship Date: Nov 30, 2026 if ordered today

Hastings Premium Ductile Ring Sets 2M4953

Hastings Premium Ductile Ring Sets 2M4953

Hastings Premium Ductile Ring Sets 2M4953

Engine Piston Ring Set, 1-Cyl Ring Set; Plasma Moly

Part Number: HSN-2M4953

Not Yet Reviewed

Estimated Ship Date: Nov 30, 2026 if ordered today

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Estimated Ship Date: Nov 30, 2026 if ordered today

Hastings Premium Ductile Ring Sets 2M5080020

Hastings Premium Ductile Ring Sets 2M5080020

Hastings Premium Ductile Ring Sets 2M5080020

Engine Piston Ring Set, 1-Cyl Ring Set; Plasma Moly

Part Number: HSN-2M5080020

Not Yet Reviewed

Estimated Ship Date: Nov 30, 2026 if ordered today

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Estimated Ship Date: Nov 30, 2026 if ordered today

Hastings Premium Ductile Ring Sets 2M4941S

Hastings Premium Ductile Ring Sets 2M4941S

Hastings Premium Ductile Ring Sets 2M4941S

Engine Piston Ring Set, Single Cyl Ring Set; Plasma Moly

Part Number: HSN-2M4941S

Not Yet Reviewed

Estimated Ship Date: Nov 30, 2026 if ordered today

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Estimated Ship Date: Nov 30, 2026 if ordered today

Hastings Premium Ductile Ring Sets 2M4942010

Hastings Premium Ductile Ring Sets 2M4942010

Hastings Premium Ductile Ring Sets 2M4942010

Engine Piston Ring Set, 2-Cyl Ring Set; Plasma Moly

Part Number: HSN-2M4942010

Not Yet Reviewed

Estimated Ship Date: Nov 30, 2026 if ordered today

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Estimated Ship Date: Nov 30, 2026 if ordered today

Hastings Premium Ductile Ring Sets 2M4942

Hastings Premium Ductile Ring Sets 2M4942

Hastings Premium Ductile Ring Sets 2M4942

Engine Piston Ring Set, 2-Cyl Ring Set; Plasma Moly

Part Number: HSN-2M4942

Not Yet Reviewed

Estimated Ship Date: Nov 30, 2026 if ordered today

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Estimated Ship Date: Nov 30, 2026 if ordered today

Hastings Premium Ductile Ring Sets 2M4942S005

Hastings Premium Ductile Ring Sets 2M4942S005

Hastings Premium Ductile Ring Sets 2M4942S005

Engine Piston Ring Set, Single Cyl Ring Set; Plasma Moly

Part Number: HSN-2M4942S005

Not Yet Reviewed

Estimated Ship Date: Nov 30, 2026 if ordered today

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Estimated Ship Date: Nov 30, 2026 if ordered today

Hastings Premium Ductile Ring Sets 2M4950010

Hastings Premium Ductile Ring Sets 2M4950010

Hastings Premium Ductile Ring Sets 2M4950010

Engine Piston Ring Set, 1-Cyl Ring Set; Plasma Moly

Part Number: HSN-2M4950010

Not Yet Reviewed

Estimated Ship Date: Nov 30, 2026 if ordered today

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Estimated Ship Date: Nov 30, 2026 if ordered today

Hastings Premium Ductile Ring Sets 2M4941S020

Hastings Premium Ductile Ring Sets 2M4941S020

Hastings Premium Ductile Ring Sets 2M4941S020

Engine Piston Ring Set, Single Cyl Ring Set; Plasma Moly

Part Number: HSN-2M4941S020

Not Yet Reviewed

Estimated Ship Date: Nov 30, 2026 if ordered today

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Estimated Ship Date: Nov 30, 2026 if ordered today

Hastings Premium Ductile Ring Sets 2M4805S005

Hastings Premium Ductile Ring Sets 2M4805S005

Hastings Premium Ductile Ring Sets 2M4805S005

Engine Piston Ring Set, Single Cyl Ring Set; Plasma Moly

Part Number: HSN-2M4805S005

Not Yet Reviewed

Estimated Ship Date: Nov 30, 2026 if ordered today

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Estimated Ship Date: Nov 30, 2026 if ordered today

Hastings Premium Ductile Ring Sets 2M4941010

Hastings Premium Ductile Ring Sets 2M4941010

Hastings Premium Ductile Ring Sets 2M4941010

Engine Piston Ring Set, 2-Cyl Ring Set; Plasma Moly

Part Number: HSN-2M4941010

Not Yet Reviewed

Estimated Ship Date: Nov 30, 2026 if ordered today

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Estimated Ship Date: Nov 30, 2026 if ordered today

Hastings Premium Ductile Ring Sets 2M4941005

Hastings Premium Ductile Ring Sets 2M4941005

Hastings Premium Ductile Ring Sets 2M4941005

Engine Piston Ring Set, 2-Cyl Ring Set; Plasma Moly

Part Number: HSN-2M4941005

Not Yet Reviewed

Estimated Ship Date: Nov 30, 2026 if ordered today

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Estimated Ship Date: Nov 30, 2026 if ordered today

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