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MAHLE 4390MS 4.390"1/16", 1/16", 3/16" Drop In

Manufacturer

MAHLE

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Picture for manufacturer Mahle 41550CP.030 Engine Piston Ring Set

Part Number

4390MS
7 reviews
04/19/2034 5:17 PM
Sale Price

$116.30

In Stock (10+)

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Usually delivered within 2 days

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Product Details

MAHLE 4390MS 4.390"1/16", 1/16", 3/16" Drop In

4.390" Bore
Drop In
Standard Tension
1/16" 1/16" 3/16"

MAHLE pioneered the use of piston ring simulation and computer
development tools to develop rings that provide free horsepower
by successfully minimizing friction. The difference is evident on the dyno and on the track. MAHLEs ultra flat ring flanks maximize ring to piston sealing.

The top ring is a ductile iron, plasma moly, barrel face configuration. The second ring is a cast iron, reverse twist. The oil rings are a 3-piece style and are offered in both standard and low tension. A large selection of coordinated piston ring sets are available in 1/16, 1/16, 3/16 or 1.5mm, 1.5mm, 3.0mm or ultra-low friction .043, .043, 3.0mm sizes.

Products specifications

Bore (in)

4.390 in.

Bore (mm)

111.506mm

File Fit

No

Gapless

No

Oil Ring Included

Yes

Oil Ring Material

Stainless steel

Oil Ring Tension

Standard

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.

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It was easy to order and the truck bed extender we bought was the lowest price we could find! However, the shipping charge was higher than what was posted on the comparison sight. Nevertheless, it still came in under the next highest price from a different vendor.

Great experience! I placed my order on Sunday and my programmer arrived on Thursday - with ground shipping. I unpacked the programmer and it functioned exactly as I had hoped. I will definitely consider purchasing from Autoplicity again!

Order arrived quickly and was exactly as described. Great prices and service!

Very fast shipping and price is rite

Fast service, great prices, highly recomended retailer.

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