Standard Tension Piston Ring Set Bore: 4.250 in.

Name: Standard Tension Piston Ring Set Bore: 4.250 in.
Brand: MAHLE MOTORSPORTS PISTONS
SKU: 644-4250MS
Price: 118.05 USD
Availability: InStock

^$118⁰⁵

Ships on Sep 14, 2026

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Standard Tension

Bore: 4.250 in.
Top Ring: 1.5 mm
Second Ring: 1.5 mm
Oil Ring: 3 mm

Mahle Motorsports Pistons 644-4250MS 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 Height3.4

Package Width5.1

Package Length5.6

Weight1.09 PG

Part CategoryPerformance Parts

Part FitmentSemi Universal

Package Qty1

Package TypeEA

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

Standard Tension Piston Ring Set Bore: 4.250 in.

Mahle Motorsports Pistons 644-4250MS Features:

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