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MAHLE 4045ML Piston Ring Set Bore File Fit - 4.040 1/16 1/16 3/16

Manufacturer

Part Number

4045ML
Sale Price

$104.52

In Stock (10+)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The MAHLE 4045ML is a premium piston ring set designed for high-performance engines with a 4.040" bore diameter (+ .005" oversize). This file-fit ring set features MAHLE's advanced low-tension design that minimizes friction to unlock free horsepower, with proven results on both the dyno and track.

Ring Configuration:

  • Ring widths: 1/16", 1/16", 3/16" configuration
  • Top ring: Ductile iron with plasma moly coating and barrel face profile
  • Second ring: Cast iron reverse twist design
  • Oil ring: 3-piece standard or low tension style
  • File-fit design allows precise end-gap customization

MAHLE Performance Technology:

  • Ultra-flat ring flanks maximize ring-to-piston sealing
  • Low tension design reduces friction for increased power output
  • Developed using advanced piston ring simulation and computer modeling
  • Plasma moly coating on top ring provides superior wear resistance

MAHLE piston rings are engineered to deliver maximum performance and durability in demanding racing and high-performance street applications. The file-fit style allows engine builders to precisely gap the rings for optimal sealing and performance in each specific application.

Products specifications

Bore (in)

4.040 in.

Bore (mm)

102.616mm

File Fit

Yes

Gapless

No

Oil Ring Included

Yes

Oil Ring Material

Stainless steel

Oil Ring Tension

Low

Oil Ring Thickness

3/16 in.

Quantity

Sold as a set.

Second Ring Facing Material

Cast iron

Second Ring Included

Yes

Second Ring Material

Cast iron

Second Ring Thickness

1/16 in.

Top Ring Facing Material

Plasma-moly

Top Ring Included

Yes

Top Ring Material

Ductile iron

Top Ring Thickness

1/16 in.

Piston Ring Thickness

1/16, 1/16, 3/16

Prop 65

WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov

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