What does the '0.040' in the part number mean?

The '0.040' in the part number 41444.040 indicates that these rings are 0.040 inches undersize. This means they are intended for use when the cylinder walls have been bored out to match this size during an engine rebuild.

Why is Moly coating important for piston rings?

Moly (molybdenum) coating is applied to piston rings to help them seat properly against the cylinder walls. This coating reduces friction during the initial break-in period and helps minimize wear on both the rings and the cylinder walls, contributing to a better seal and longer engine life.

Are these rings compatible with all 3.9L Dodge engines?

This specific ring set is designed for 1986-1991 Dodge 3.9L engines, covering a range of truck and Dakota models. It's important to verify the exact year and model of your vehicle against the provided fitment list to ensure compatibility.

Mahle OE Piston Rings Moly Ring Set 41444.040

Name: Mahle Rings Dodge Trk 238 3.9L Eng 86-91 Moly Ring Set
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-dodge-trk-238-3-9l-eng-86-91-moly-ring-set-t14-50037
Price: 69.11 USD
Availability: BackOrder

Mahle Rings Dodge Trk 238 3.9L Eng 86-91 Moly Ring Set

$69.11

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Mahle OE Moly Ring Set for Dodge 3.9L engines (1986-1991). Reduces friction and oil consumption for longer engine life.

Key Features

Fits 1986-1991 Dodge trucks and Dakota with the 3.9L engine.
Moly coating on the rings helps with proper seating and reduces cylinder wall wear.
Designed to reduce engine friction and minimize oil consumption.
OE-driven requirements ensure a reliable fit and function.
Contributes to longer engine service life.
Part number 41444.040 is 0.040 inch undersize.

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Will this fit your vehicle?

Product Details

If you're rebuilding the engine in your Dodge truck or Dakota from the late 80s to early 90s, specifically with the 3.9L engine, Mahle OE Moly Ring Set is a solid option. This set is designed to meet the demanding requirements of original equipment manufacturers, focusing on reducing internal engine friction and minimizing oil consumption. Getting these right is key to a healthy, long-lasting engine rebuild.

Mahle engineers these rings to have less mass and lower friction compared to stock, which helps your engine run more efficiently. They're made with Moly (molybdenum) coating, a common and effective material that helps the rings seat properly against the cylinder walls and reduces wear. This means you can expect a good seal for optimal compression and a cleaner burn, all contributing to better performance and durability over time.

This set is a direct replacement for your 3.9L engine, fitting a range of Dodge trucks like the B150, B250, D150, and Dakota models from 1988 through 1991, as well as some earlier 1987-1989 models. Remember that these rings are not CARB approved and cannot be shipped to California.