My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

MAHLE 42081CP.040 Premium Engine Piston Ring Set Over - 040

(Ford F-150 2011-17, Explorer 2011-17, Expedition 2015-17, Fusion 2010-12, Edge 2007-17, Taurus 2008-17, Flex 2009-17, Transit-250 2015-17 + 15 more models)

Manufacturer

Picture for manufacturer MAHLE

Part Number

42081CP.040
11 reviews
Sale Price

$149.19

Estimated ship date Friday, November 20

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The MAHLE 42081CP.040 is a premium replacement piston ring set manufactured to OE form, fit, and function for engines bored 0.040" over standard. As one of the world's largest OE piston ring manufacturers, MAHLE brings factory-level engineering to every replacement ring set — making them the rings of choice for professional engine builders and serious rebuilders alike.

Key Features:

  • SAE 9254 High Alloy Steel Base Material — delivers higher tensile and yield strength, extended fatigue resistance, and increased material hardness for long-term durability
  • Barrel-Faced Compression Rings — provide a more efficient contact area for superior compression sealing and reduced blow-by
  • CNC-Controlled Gap Chamfer — precisely optimizes ring gap to minimize combustion gas leakage
  • Reverse-Twist Intermediate Rings — designed for better groove side sealing, with taper race machining to enhance cylinder wall contact
  • CP-20 Oil Ring Assemblies — feature an exclusive 20-degree ear angle for the best possible side seal in the piston oil ring groove, plus a special chemical polish on the expander for enhanced oil drainback
  • Pre-Lapped for Immediate Seating — virtually eliminates break-in time and simplifies installation
  • 0.040" Oversize — engineered for cylinders bored 0.040" over standard diameter

MAHLE piston rings are driven by OE requirements, focusing on reducing friction and ring mass while minimizing engine oil consumption and providing longer service life. This ring set delivers OEM-quality sealing, oil control, and durability for engine rebuilds requiring a 0.040" overbore.

Products specifications

Fits

Ford F-150 2011-17, Explorer 2011-17, Expedition 2015-17, Fusion 2010-12, Edge 2007-17, Taurus 2008-17, Flex 2009-17, Transit-250 2015-17, Police Interceptor Utility 2014-17, Transit-350 2015-17, Transit-150 2015-17 + 12 more models

Piston Ring Size

.040IN

First time using this site. Very easy to navigate and I like that it is affiliated with Amazon.

So far, so good. As long as there aren't multiple delays in shipping as I experienced with a competitor, before I found Autoplicity, then this will continue to be a 5 Star. Thanks.

quick, easy, good price

very good

wire to a relay instructions would of be helpful.

Couldn't choose any of my other amazon shipping addresses as my method of payment showed no payment method for any other address so I had to take shipment to my main address and now I have to drive the parts to where I need them 90 mins round-trip plus t

Quick and easy

I'M A HAPPY CUSTOMER

Easy checkout.

The web site makes it very easy tt find what your looking for and the prices are very good as well,.. Lower than anyone else on the net! I recieved my order in just two days! Super fast shipping! I will be back again when my truck asks for more goodies!!

Well, I'll start with saying this...I wanted a specific product from COBB tuning that they sell. It was priced lower than any other company so I bought it. This happened on the 22nd, I ended up calling them almost a week later to request tracking info. They were very friendly when they notified me it wouldn't be able to ship out till the 3rd of feb. For a 2 lb item I thought this was pretty slow. They apologized for COBB holding the order up. Its now the 7th, should get my item today!! Overall its a good company with friendly employees, Shipping time is lacking but a trade off for the lowest price. I would refer a friend for price and also mention shipping time expectations. I do believe there's something to be said for quality customer service and low prices...It's becoming harder and harder to find companies that posses such qualities. Honestly, if they had a faster shipping method I would give them a perfect rating.<br>

Share icon
Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy