Low Tension Piston Ring Set Bore:4.040"

Name: Low Tension Piston Ring Set Bore:4.040"
Brand: MAHLE MOTORSPORTS PISTONS
SKU: 644-4045ML
Price: 118.05 USD
Availability: InStock

^$118⁰⁵

Ships on Nov 02, 2026

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Low Tension

Bore:4.040"
Top Ring: 1/16"
Second Ring: 1/16"
Oil Ring: 3/16"

Mahle Motorsports Pistons 644-4045ML Features:

Mahle pioneered the use of piston ring simulation & computer development to design rings that provide "free" HP by minimizing friction. Their ultra flat ring flanks maximize ring-to-piston sealing.

Features:

Top Ring: Plasma moly-coated ductile iron (barrel shape)
Second Ring: Cast iron (reverse twist)
Oil Ring: Low or standard tension
Complete sets except #644-3908MS15-1, #644-4035MS-15-1, and #644-4065MS-15-1

Part TypePiston Ring

Product LineMahle Performance Piston Rings

BrandMAHLE MOTORSPORTS PISTONS

Package Height3.5

Package Width5.0

Package Length5.8

Weight1.0 PG

Part CategoryPerformance Parts

Part FitmentSemi Universal

Package Qty1

Package TypeEA

Some parts are not legal for use in California or other states with similar laws / regulations

Low Tension Piston Ring Set Bore:4.040"

Mahle Motorsports Pistons 644-4045ML Features:

⚠️ Warning

Motor Vehicles

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