PISTON RINGS
8-Cylinder Ring Sets
Bore Size
Top Ring
2nd Ring
Oil Ring
Oil Ring Tension
Part No.
Description
4.065 Bore - Standard Gap Hastings HAS2M5292020
Steel Plasma-Moly Top, Ductile Iron Phosphate 2nd
4.085" 1.5mm 1.5mm 2.5mm
Standard
JE Pro Seal
JEPJG31F8-4070-0
Carbon Steel Nitride Top, Iron Phosphate 2nd
4.070" 1.2mm 1.5mm 3.0mm
Low
Mahle
M7741909.010 M7741909.030 M7741909.020 M7741909.040
Duramax 6.6L, Ductile Iron Plasma-Moly Top, Cast Iron 2nd 4.065" 3.0mm 2.0mm 3.0mm Duramax 6.6L, Ductile Iron Plasma-Moly Top, Cast Iron 2nd 4.085" 3.0mm 2.0mm 3.0mm Duramax 6.6L, Ductile Iron Plasma-Moly Top, Cast Iron 2nd 4.075" 3.0mm 2.0mm 3.0mm Duramax 6.6L, Ductile Iron Plasma-Moly Top, Cast Iron 2nd 4.095" 3.0mm 2.0mm 3.0mm
Standard Standard Standard Standard
Sealed Power SEAE997K
Premium Ring Set, Cast Iron Plasma-Moly Top, Cast Iron 2nd 4.065" 1.5mm 1.5mm 2.5mm SEAE997K25MM Premium Ring Set, Cast Iron Plasma-Moly Top, Cast Iron 2nd 4.075" 1.5mm 1.5mm 2.5mm
Standard Standard
4.070" Bore - File-Fit JE Pro Seal JEPJG31F8-4075-5 Mahle Motorsports MAH4075MS-15 4.080" Bore - File-Fit JE Pro Seal JEPJ100F8-4080-5
Gas Nitride Steel, Cast Iron Phosphate 2nd
4.075" 1.2mm 1.5mm 3.0mm
Low
Ductile Iron Plasma-Moly Top, Cast Iron 2nd
4.070" 1.5mm 1.5mm 3.0mm
Standard
Ductile Iron Plasma-Moly Top, Iron Phosphate 2nd
4.080" 1/16" 1/16" 3/16"
Standard
4.120" Bore - Standard Gap Hastings HAS2M644
Steel Plasma-Moly Top, Ductile Iron 2nd Grey Iron Plasma-Moly Top, Grey Iron 2nd Grey Iron Plasma-Moly Top, Grey Iron 2nd
4.120" 5/64" 5/64" 3/16" 4.150" 5/64" 5/64" 3/16" 4.160" 5/64" 5/64" 3/16"
Standard Standard Standard
HAS2M644030 HAS2M644040
4.125" Bore - Standard Gap Hastings HAS661
Grey Iron Top, Grey Iron 2nd
4.125" 5/64" 5/64" 3/16" 4.125" 5/64" 5/64" 3/16" 4.125" 1.2mm 1.2mm 3.0mm 4.145" 1.2mm 1.2mm 3.0mm 4.155" 1.2mm 1.2mm 3.0mm 4.165" 1.2mm 1.2mm 3.0mm 4.145" 5/64" 5/64" 3/16" 4.155" 5/64" 5/64" 3/16" 4.155" 1/16" 1/16" 3/16" 4.155" 5/64" 5/64" 3/16" 4.155" 1/16" 1/16" 3/16" 4.165" 5/64" 5/64" 3/16" 4.165" 5/64" 5/64" 3/16" 4.165" 1/16" 1/16" 3/16" 4.155" 1/16" 1/16" 1/8"
Standard Standard Standard Standard Standard Standard Standard Standard Standard Standard Standard Standard Standard Standard Standard
HAS2M661 HASSN9050
Grey Iron Plasma-Moly Top, Grey Iron 2nd
Racing Rings, Stainless Steel Nitrided Top, Ductile Iron 2nd Racing Rings, Stainless Steel Nitrided Top, Ductile Iron 2nd Racing Rings, Stainless Steel Nitrided Top, Ductile Iron 2nd Racing Rings, Stainless Steel Nitrided Top, Ductile Iron 2nd Claimer, Grey Iron Top, Grey Iron 2nd Grey Iron Plasma-Moly Top, Grey Iron 2nd Claimer, Grey Iron Plasma-Moly Top, Grey Iron 2nd Claimer, Grey Iron Plasma-Moly Top, Grey Iron 2nd Cast Iron Plasma-Moly Top, Grey Iron 2nd Claimer, Cast Iron Plasma-Moly Top, Grey Iron 2nd Grey Iron Plasma-Moly Top, Grey Iron 2nd Grey Iron Top, Grey Iron 2nd Grey Iron Top, Grey Iron 2nd
HASSN9050020 HASSN9050030 HASSN9050040 HAS2M661020 HASC5534030 HAS2M661030 HASCM5534030 HASCM5501030 HAS661030 HAS2M661040 HASCM5534040 HAS661040
JE Pro Seal
JEPJG31F8-4125-2
Carbon Steel Nitrided Top, Napier 2nd, .170" B.C.
4.125" 1.2mm 1.5mm 3.0mm
Standard
Mahle (Perfect Circle) M7740141CP.030
Premium, Cast Iron Plasma-Moly Top, Cast Iron 2nd
4.155" 5/64" 5/64" 3/16"
Standard
Sealed Power SEAE243X
Standard Ring Set, Cast Iron Top, Cast Iron 2nd
4.125" 5/64" 5/64" 3/16"
Standard Standard Standard Standard Standard Standard Standard
SEAE243K
Premium Ring Set, Cast Iron Plasma-Moly Top, Cast Iron 2nd 4.125" 5/64" 5/64" 3/16" Premium Ring Set, Cast Iron Plasma-Moly Top, Cast Iron 2nd 4.145" 5/64" 5/64" 3/16" Premium Ring Set, Cast Iron Plasma-Moly Top, Cast Iron 2nd 4.155" 5/64" 5/64" 3/16" Premium Ring Set, Cast Iron Plasma-Moly Top, Cast Iron 2nd 4.165" 5/64" 5/64" 3/16" Premium Ring Set, Cast Iron Plasma-Moly Top, Cast Iron 2nd 4.185" 5/64" 5/64" 3/16" Standard Ring Set, Cast Iron Top, Cast Iron 2nd 4.155" 5/64" 5/64" 3/16"
SEAE243K20 SEAE243X30 SEAE243K30 SEAE243K40 SEAE243K60
Speed-Pro
SEAR8375-30 SEAR8375-30
Claimer, Cast Iron Plasma-Moly Top, Cast Iron 2nd Claimer, Cast Iron Plasma-Moly Top, Cast Iron 2nd
4.155" 1/16" 1/16" 3/16" Standard 19-22 lb.+/- 4.155" 1/16" 1/16" 3/16" Standard 19-22 lb.+/-
TOTAL SEAL PREFIX LEGEND - See Page 537
529 2021-22 ENGINE BUILDER CATALOG
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