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MAHLE Piston Ring Set Bore

Manufacturer

Picture for manufacturer MAHLE

Part Number

25 part numbers · from $91.40
6 reviews
Sale Price

from $91.40

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The MAHLE piston ring set line provides engine builders and rebuilders with precision-manufactured piston rings for engine rebuilds and performance builds. Each set is designed to seal the combustion chamber, control oil on the cylinder wall, and transfer heat from the piston to the cylinder wall. The result is consistent compression and reliable engine operation.

Key Features:

  • Manufactured by MAHLE, a leading OE supplier of pistons, rings and engine components
  • Designed to help maintain compression and reduce blow-by
  • Helps control oil consumption by scraping oil from the cylinder wall
  • Precision-machined ring profiles and tight quality control for consistent fit and performance
  • Available in multiple bore sizes to match different engine applications

Choose the set that matches your engine's bore size. Proper ring end-gap checks and careful installation are recommended for the best seal and service life. Installing a MAHLE ring set with a fresh cylinder finish helps restore compression and engine performance.

Select yours to see vehicle-specific options.

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25 items

Picture of MAHLE 4040MS 4.040" Bore Piston Ring Set 1/16 1/16 3/16
MAHLE 4040MS 4.040" Bore Piston Ring Set 1/16 1/16 3/16
Description
Specifications
Bore (in)4.040 in.
Bore (mm)102.616mm
File FitNo
GaplessNo
Oil Ring IncludedYes
Oil Ring MaterialStainless steel
Oil Ring TensionStandard
Oil Ring Thickness3/16 in.
Piston Ring Thickness1/16, 1/16, 3/16
Prop 65 - Short LabelWARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Prop 65 (C, R, or CR)CR
Prop 65 Yes/NoYes
QuantitySold as a set.
Second Ring Facing MaterialCast iron
Second Ring IncludedYes
Second Ring MaterialCast iron
Second Ring Thickness1/16 in.
Top Ring Facing MaterialPlasma-moly
Top Ring IncludedYes
Top Ring MaterialDuctile iron
Top Ring Thickness1/16 in.
$104.54
PART NUMBER: 4040MS
In Stock (10+)
Usually delivered within 2 days
Picture of MAHLE 8350MS-12 Piston Ring Set Bore - 83.50mm 1.2/1.2/2.8mm
MAHLE 8350MS-12 Piston Ring Set Bore - 83.50mm 1.2/1.2/2.8mm
Description
Specifications
Piston Ring Thickness1.2mm, 1.2mm, 2.8mm
Prop 65 - Short LabelWARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Prop 65 (C, R, or CR)CR
Prop 65 Yes/NoYes
$91.47
PART NUMBER: 8350MS-12
In Stock (10+)
Usually delivered within 2 days
Picture of MAHLE 8700MS-12 Piston Ring Set Bore - 87.00mm 1.2/1.2/2.8mm
MAHLE 8700MS-12 Piston Ring Set Bore - 87.00mm 1.2/1.2/2.8mm
Description
Specifications
Bore (in)3.425 in.
Bore (mm)87.000mm
File FitNo
GaplessNo
Oil Ring IncludedYes
Oil Ring MaterialStainless steel
Oil Ring TensionStandard
Oil Ring Thickness2.8mm
Piston Ring Thickness1.2mm, 1.2mm, 2.8mm
Prop 65 - Short LabelWARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Prop 65 (C, R, or CR)CR
Prop 65 Yes/NoYes
QuantitySold as a set.
Second Ring Facing MaterialCast iron
Second Ring IncludedYes
Second Ring MaterialCast iron
Second Ring Thickness1.2mm
Top Ring Facing MaterialGas nitrided
Top Ring IncludedYes
Top Ring MaterialSteel
Top Ring Thickness1.0mm
$91.44
PART NUMBER: 8700MS-12
In Stock (10+)
Usually delivered within 2 days
Picture of MAHLE 9950MS-12 Piston Ring Set Bore - 99.50mm 1.2/1.2/2.8mm
Representative Photo. Actual item may vary
MAHLE 9950MS-12 Piston Ring Set Bore - 99.50mm 1.2/1.2/2.8mm
Description
Specifications
Bore (in)3.917 in.
Bore (mm)99.492mm
File FitNo
GaplessNo
Oil Ring IncludedYes
Oil Ring MaterialStainless steel
Oil Ring TensionStandard
Oil Ring Thickness2.8mm
Prop 65 - Short LabelWARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Prop 65 (C, R, or CR)CR
Prop 65 Yes/NoYes
QuantitySold as a set.
Second Ring Facing MaterialCast iron
Second Ring IncludedYes
Second Ring MaterialCast iron
Second Ring Thickness1.5mm
Top Ring Facing MaterialGas nitrided
Top Ring IncludedYes
Top Ring MaterialSteel
Top Ring Thickness1.2mm
$91.47
PART NUMBER: 9950MS-12
In Stock (10+)
Usually delivered within 2 days
Picture of MAHLE 4310MS 4.310" Bore Piston Ring Set 1/16" 1/16" 3/16"
MAHLE 4310MS 4.310" Bore Piston Ring Set 1/16" 1/16" 3/16"
Description
Specifications
Bore (in)4.310 in.
Bore (mm)109.474mm
File FitNo
GaplessNo
Oil Ring IncludedYes
Oil Ring MaterialStainless steel
Oil Ring TensionStandard
Oil Ring Thickness3/16 in.
Piston Ring Thickness1/16, 1/16, 3/16
Prop 65 - Short LabelWARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Prop 65 (C, R, or CR)CR
Prop 65 Yes/NoYes
QuantitySold as a set.
Second Ring Facing MaterialCast iron
Second Ring IncludedYes
Second Ring MaterialCast iron
Second Ring Thickness1/16 in.
Top Ring Facing MaterialPlasma-moly
Top Ring IncludedYes
Top Ring MaterialDuctile iron
Top Ring Thickness1/16 in.
$102.49
PART NUMBER: 4310MS
In Stock (10+)
Usually delivered within 2 days
Picture of MAHLE 8800MS-12 Piston Ring Set Bore - 88.00mm 1.2/1.2/2.8mm
MAHLE 8800MS-12 Piston Ring Set Bore - 88.00mm 1.2/1.2/2.8mm
Description
Specifications
Piston Ring Thickness1.2mm, 1.2mm, 2.8mm
Prop 65 - Short LabelWARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Prop 65 (C, R, or CR)CR
Prop 65 Yes/NoYes
$91.40
PART NUMBER: 8800MS-12
In Stock (10+)
Usually delivered within 2 days
Picture of MAHLE 4600MS Piston Ring Set 4.600" Bore 1/16" 1/16" 3/16"
MAHLE 4600MS Piston Ring Set 4.600" Bore 1/16" 1/16" 3/16"
Description
Specifications
Bore (in)4.600 in.
Bore (mm)116.840mm
File FitNo
GaplessNo
Oil Ring IncludedYes
Oil Ring MaterialStainless steel
Oil Ring TensionStandard
Oil Ring Thickness3/16 in.
Piston Ring Thickness1/16, 1/16, 3/16
Prop 65 - Short LabelWARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Prop 65 (C, R, or CR)CR
Prop 65 Yes/NoYes
QuantitySold as a set.
Second Ring Facing MaterialCast iron
Second Ring IncludedYes
Second Ring MaterialCast iron
Second Ring Thickness1/16 in.
Top Ring Facing MaterialPlasma-moly
Top Ring IncludedYes
Top Ring MaterialDuctile iron
Top Ring Thickness1/16 in.
$112.29
PART NUMBER: 4600MS
In Stock (10+)
Usually delivered within 2 days
Picture of MAHLE 4165MS Piston Ring Set 4.165" Bore 1/16" 1/16" 3/16"
MAHLE 4165MS Piston Ring Set 4.165" Bore 1/16" 1/16" 3/16"
Description
Specifications
Bore (in)4.165 in.
Bore (mm)105.791mm
File FitNo
GaplessNo
Oil Ring IncludedYes
Oil Ring MaterialStainless steel
Oil Ring TensionStandard
Oil Ring Thickness3/16 in.
Piston Ring Thickness1/16, 1/16, 3/16
Prop 65 - Short LabelWARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Prop 65 (C, R, or CR)CR
Prop 65 Yes/NoYes
QuantitySold as a set.
Second Ring Facing MaterialCast iron
Second Ring IncludedYes
Second Ring MaterialCast iron
Second Ring Thickness1/16 in.
Top Ring Facing MaterialPlasma-moly
Top Ring IncludedYes
Top Ring MaterialDuctile iron
Top Ring Thickness1/16 in.
$104.54
PART NUMBER: 4165MS
In Stock (10+)
Usually delivered within 2 days
Picture of MAHLE 8300MS-12 Piston Ring Set Bore - 83.00mm 1.2/1.2/2.8mm
MAHLE 8300MS-12 Piston Ring Set Bore - 83.00mm 1.2/1.2/2.8mm
Description
Specifications
Piston Ring Thickness1.2mm, 1.2mm, 2.8mm
Prop 65 - Short LabelWARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Prop 65 (C, R, or CR)CR
Prop 65 Yes/NoYes
$91.44
PART NUMBER: 8300MS-12
In Stock (10+)
Usually delivered within 2 days
Picture of MAHLE 9975MS-12 Sport Compact Piston Ring Set - 99.75mm
MAHLE 9975MS-12 Sport Compact Piston Ring Set - 99.75mm
Description
Specifications
Prop 65 - Short LabelWARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Prop 65 (C, R, or CR)CR
Prop 65 Yes/NoYes
$91.44
PART NUMBER: 9975MS-12
In Stock (10+)
Usually delivered within 2 days
Picture of MAHLE 8125MS-10 Piston Ring Set Bore - 81.25mm 1.0/1.2/2.8mm
MAHLE 8125MS-10 Piston Ring Set Bore - 81.25mm 1.0/1.2/2.8mm
Description
Specifications
Bore (in)3.199 in.
Bore (mm)81.250mm
File FitNo
GaplessNo
Oil Ring IncludedYes
Oil Ring MaterialStainless steel
Oil Ring TensionStandard
Oil Ring Thickness2.8mm
Piston Ring Thickness1.0mm, 1.2mm, 2.8mm
Prop 65 - Short LabelWARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Prop 65 (C, R, or CR)CR
Prop 65 Yes/NoYes
QuantitySold as a set.
Second Ring Facing MaterialCast iron
Second Ring IncludedYes
Second Ring MaterialCast iron
Second Ring Thickness1.2mm
Top Ring Facing MaterialGas nitrided
Top Ring IncludedYes
Top Ring MaterialSteel
Top Ring Thickness1.0mm
$91.47
PART NUMBER: 8125MS-10
In Stock (10+)
Usually delivered within 2 days
Picture of MAHLE 8500MS-12 Piston Ring Set Bore - 85mm 1.2/1.2/2.8mm
MAHLE 8500MS-12 Piston Ring Set Bore - 85mm 1.2/1.2/2.8mm
Description
Specifications
Piston Ring Thickness1.2mm, 1.2mm, 2.8mm
Prop 65 - Short LabelWARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Prop 65 (C, R, or CR)CR
Prop 65 Yes/NoYes
$91.47
PART NUMBER: 8500MS-12
In Stock (10+)
Usually delivered within 2 days
Picture of MAHLE 8150MS-10 Piston Ring Set Bore - 81.50mm 1.0/1.2/2.8mm
MAHLE 8150MS-10 Piston Ring Set Bore - 81.50mm 1.0/1.2/2.8mm
Description
Specifications
Bore (in)3.209 in.
Bore (mm)81.500mm
File FitNo
GaplessNo
Oil Ring IncludedYes
Oil Ring MaterialStainless steel
Oil Ring TensionStandard
Oil Ring Thickness2.8mm
Piston Ring Thickness1.0mm, 1.2mm, 2.8mm
Prop 65 - Short LabelWARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Prop 65 (C, R, or CR)CR
Prop 65 Yes/NoYes
QuantitySold as a set.
Second Ring Facing MaterialCast iron
Second Ring IncludedYes
Second Ring MaterialCast iron
Second Ring Thickness1.2mm
Top Ring Facing MaterialGas nitrided
Top Ring IncludedYes
Top Ring MaterialSteel
Top Ring Thickness1.0mm
$91.47
PART NUMBER: 8150MS-10
In Stock (10+)
Usually delivered within 2 days
Picture of MAHLE 8900MS-12 Piston Ring Set Bore - 89.00mm
MAHLE 8900MS-12 Piston Ring Set Bore - 89.00mm
Description
Specifications
Piston Ring Thickness1.2mm, 1.2mm, 2.8mm
Prop 65 - Short LabelWARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Prop 65 (C, R, or CR)CR
Prop 65 Yes/NoYes
$91.47
PART NUMBER: 8900MS-12
In Stock (10+)
Usually delivered within 2 days
Picture of MAHLE 4125MS-112 Piston Ring Set 4.125" Bore .005" Oversize
Representative Photo. Actual item may vary
MAHLE 4125MS-112 Piston Ring Set 4.125" Bore .005" Oversize
Description
Specifications
Piston Ring Thickness1.0mm, 1.0mm, 2.0mm
Prop 65 - Short LabelWARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Prop 65 (C, R, or CR)CR
Prop 65 Yes/NoYes
$162.90
PART NUMBER: 4125MS-112
In Stock (10+)
Usually delivered within 2 days
Picture of MAHLE 4185MS 4.185" Bore Piston Ring Set 1/16 1/16 3/16
Representative Photo. Actual item may vary
MAHLE 4185MS 4.185" Bore Piston Ring Set 1/16 1/16 3/16
Description
Specifications
Bore (in)4.185 in.
Bore (mm)106.299mm
File FitNo
GaplessNo
Oil Ring IncludedYes
Oil Ring MaterialStainless steel
Oil Ring TensionStandard
Oil Ring Thickness3/16 in.
Piston Ring Thickness1/16, 1/16, 3/16
Prop 65 - Short LabelWARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Prop 65 (C, R, or CR)CR
Prop 65 Yes/NoYes
QuantitySold as a set.
Second Ring Facing MaterialCast iron
Second Ring IncludedYes
Second Ring MaterialCast iron
Second Ring Thickness1/16 in.
Top Ring Facing MaterialPlasma-moly
Top Ring IncludedYes
Top Ring MaterialDuctile iron
Top Ring Thickness1/16 in.
$104.54
PART NUMBER: 4185MS
In Stock (10+)
Usually delivered within 2 days
Picture of MAHLE 3947MS-15 Piston Ring Set 3.947" Bore 1.5mm 1.5mm 3.0mm
MAHLE 3947MS-15 Piston Ring Set 3.947" Bore 1.5mm 1.5mm 3.0mm
Description
Specifications
Piston Ring Thickness1.5mm, 1.5mm, 3.0mm
Prop 65 - Short LabelWARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Prop 65 (C, R, or CR)CR
Prop 65 Yes/NoYes
$132.58
PART NUMBER: 3947MS-15
In Stock (8)
Usually delivered within 2 days
Picture of MAHLE 4330MS Piston Ring Set 4.330" Bore 1/16" 1/16" 3/16"
Representative Photo. Actual item may vary
MAHLE 4330MS Piston Ring Set 4.330" Bore 1/16" 1/16" 3/16"
Description
Specifications
Bore (in)4.330 in.
Bore (mm)109.982mm
File FitNo
GaplessNo
Oil Ring IncludedYes
Oil Ring MaterialStainless steel
Oil Ring TensionStandard
Oil Ring Thickness3/16 in.
Piston Ring Thickness1/16, 1/16, 3/16
Prop 65 - Short LabelWARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Prop 65 (C, R, or CR)CR
Prop 65 Yes/NoYes
QuantitySold as a set.
Second Ring Facing MaterialCast iron
Second Ring IncludedYes
Second Ring MaterialCast iron
Second Ring Thickness1/16 in.
Top Ring Facing MaterialPlasma-moly
Top Ring IncludedYes
Top Ring MaterialDuctile iron
Top Ring Thickness1/16 in.
$104.54
PART NUMBER: 4330MS
4 left at this price
Usually delivered within 2 days
Picture of MAHLE 8100MS-10 Piston Ring Set Bore - 81.00mm
MAHLE 8100MS-10 Piston Ring Set Bore - 81.00mm
Description
Specifications
Bore (in)3.189 in.
Bore (mm)81.000mm
File FitNo
GaplessNo
Oil Ring IncludedYes
Oil Ring MaterialStainless steel
Oil Ring TensionStandard
Oil Ring Thickness2.8mm
Piston Ring Thickness1.0mm, 1.2mm, 2.8mm
Prop 65 - Short LabelWARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Prop 65 (C, R, or CR)CR
Prop 65 Yes/NoYes
QuantitySold as a set.
Second Ring Facing MaterialCast iron
Second Ring IncludedYes
Second Ring MaterialCast iron
Second Ring Thickness1.2mm
Top Ring Facing MaterialGas nitrided
Top Ring IncludedYes
Top Ring MaterialSteel
Top Ring Thickness1.0mm
$91.47
PART NUMBER: 8100MS-10
3 left at this price
Usually delivered within 2 days
Picture of MAHLE 3922MS-112 Piston Ring Set Bore Oversize - 3.917 005 1.0mm/1.0mm/2.0mm
Representative Photo. Actual item may vary
MAHLE 3922MS-112 Piston Ring Set Bore Oversize - 3.917 005 1.0mm/1.0mm/2.0mm
Description
Specifications
Piston Ring Thickness1.0mm, 1.0mm, 2.0mm
Prop 65 - Short LabelWARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Prop 65 (C, R, or CR)CR
Prop 65 Yes/NoYes
$148.45
PART NUMBER: 3922MS-112
2 left at this price
Usually delivered within 2 days
Picture of MAHLE 9276MS6-12 Sport Compact Piston Ring Set - 92.76mm 1.2/1.2/2.5mm 6-Cylinder Picture of MAHLE 9276MS6-12 Sport Compact Piston Ring Set - 92.76mm 1.2/1.2/2.5mm 6-Cylinder
MAHLE 9276MS6-12 Sport Compact Piston Ring Set - 92.76mm 1.2/1.2/2.5mm 6-Cylinder
Description
Specifications
Piston Ring Thickness1.2mm, 1.2mm, 2.5mm
Prop 65 - Short LabelWARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Prop 65 (C, R, or CR)CR
Prop 65 Yes/NoYes
$125.68
PART NUMBER: 9276MS6-12
Ships from manufacturer
Picture of MAHLE 3150181.045 Piston Ring Set Oversize Bore - 0.045
Representative Photo. Actual item may vary
MAHLE 3150181.045 Piston Ring Set Oversize Bore - 0.045
Description
$171.93
PART NUMBER: 3150181.045
Ships from manufacturer
Picture of MAHLE 3150163.005 Piston Ring Set 3.150" Bore
Representative Photo. Actual item may vary
MAHLE 3150163.005 Piston Ring Set 3.150" Bore
Description
$171.93
PART NUMBER: 3150163.005
Ships from manufacturer
Picture of MAHLE 3150179.005 Piston Ring Set Bore - 4.125 043 1.5mm 3.0mm 8-Cylinder
Representative Photo. Actual item may vary
MAHLE 3150179.005 Piston Ring Set Bore - 4.125 043 1.5mm 3.0mm 8-Cylinder
Description
$174.63
PART NUMBER: 3150179.005
Ships from manufacturer
Picture of MAHLE 3150168.065 Piston Ring Set Oversize Bore - 0.065
Representative Photo. Actual item may vary
MAHLE 3150168.065 Piston Ring Set Oversize Bore - 0.065
Description
$173.32
PART NUMBER: 3150168.065
Ships from manufacturer
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