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Mahle

Mahle

Mahle MS Cummins B 5.9L (+020) Diesel Ring 1 cyl

SKU: MHLS42170-020

Piston Rings

MHL MS Piston Rings...

Mahle MS Cummins B 5.9L (+020) Diesel Ring 1 cyl
Mahle

Mahle

Mahle MS Cummins B 5.9L (+020) Diesel Ring 1 cyl

SKU: MHLS42170-020

Piston Rings

MHL MS Piston Rings...

A$62.13
Available from MFR. This item is available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical order processing and release times for this part. This item is not held in our own warehouse, and actual dispatch timing may vary depending on manufacturer workload and logistics at the time of ordering.
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Description

Mahle Performance piston rings evolved from their pioneering use of piston ring simulation and computer development tools to develop rings that provide "free" horsepower by successfully minimizing friction. A large selection of coordinated piston ring sets is available in a variety of sizes, designs, materials, and coatings designed to exceed your high performance requirements. The difference is evident on the dyno and on the track.

Features and benefits of Mahle Performance piston rings:

* 1mm and 2mm steel top rings with patented HV385 supersonic thermal-spray process applied for superior bonding, increased durability, and increased scuff resistance
* 1.5mm and 1/16 in. positive-twist, ductile iron, barrel-faced, plasma-moly inlaid top rings
* Sport compact ring sets ranging from 81-100mm with steel-nitrided top rings
* Traditional, reverse-twist, taper-faced (RBT) cast iron second rings
* Tapered Hook Groove (THG) second rings that offer superior oil control when compared to traditional RBT rings
* 3-piece style oil control rings in both standard and low tension
* Standard-tension expanders are sold separately for select low-tension rings where increased oil control is necessary
* CP-20 design oil rings that are easier to install; chemically polished for better oil drain-back with a 20 degree ear angle to ensure side seal around the ring

Application Summary

Cummins 5.9L 12V/24V cu in.

Part Type

Engine Piston Kit

Data: v4.2 - Upd: 2026-10-14 20:14:54

Specifications

Product Attributes - UPC
00027067878328
Product Attributes - Brand
Mahle
Product Attributes - Notes
Single cylinder piston ring set includes Keystone top ring.
Product Attributes - Gapless
No
Product Attributes - File Fit
No
Product Attributes - Quantity
Sold as a set.
Product Attributes - Bore (mm)
102.489mm
Product Attributes - Part Type
Piston Rings
Product Attributes - Bore (in.)
4.035 in.
Product Attributes - Gas Ported
No
Product Attributes - Product Line
Mahle Performance Piston Rings
Product Attributes - Oil Ring Tension
Standard
Product Attributes - Oil Ring Included
Yes
Product Attributes - Oil Ring Material
Chrome plated cast iron
Product Attributes - Top Ring Included
Yes
Product Attributes - Top Ring Material
Ductile iron
Product Attributes - Oil Ring Thickness
4.0mm
Product Attributes - Top Ring Thickness
3.0mm
Product Attributes - Second Ring Included
Yes
Product Attributes - Second Ring Material
Cast iron
Product Attributes - Second Ring Thickness
2.40mm
Product Attributes - Top Ring Facing Material
Ceramic chrome
Product Attributes - Manufacturer's Part Number
S42170-020
Product Attributes - Second Ring Facing Material
Phosphate coated
Product Attributes - Piston and Ring Oversize (mm)
0.50mm
Product Attributes - Piston and Ring Oversize (in.)
0.020 in.

Reference Information

Brand Name/s Mahle
StreetFX SKU mhlS42170-020
SFX Item ID 4177602
Supplier Item Code 4177602
Manufacturer SKU S42170-020
Manufacturer UPC N/A
Alternative References mle-s42170-020, 5.9L

Compatibility

Cummins 5.9L 12V/24V cu in.

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