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MAHLE 41240CP.030 Premium Piston Ring Set 4.030" Bore GM 2.5L / Mercruiser 3.0L

(Ford F-150 2015-20; Jeep CJ7 1980, CJ5 1980; Chevrolet Monza 1978-80; Pontiac Ventura 1977, Sunbird 1977-80, Phoenix 1977-78, Astre 1977 + 3 more models)

Manufacturer

Picture for manufacturer MAHLE

Part Number

41240CP.030
12 reviews
Sale Price

$28.20

Estimated ship date Friday, November 27

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Product Details

The MAHLE 41240CP.030 is a premium piston ring set engineered for GM 2.5L four-cylinder (151 CID) and Mercruiser 3.0L (181 CID) marine and automotive engines. Designed to meet or exceed OE specifications, this set features a 4.00" standard bore with +0.030" oversize, making it ideal for engine rebuilds where cylinders have been bored to the first oversize.

Key Features:

  • Plasma-moly top ring (UCR) — carbon steel construction with a barrel-faced contact profile for efficient compression sealing and reduced cylinder wall friction
  • CNC-controlled gap chamfer on compression rings to optimize sealing and minimize blow-by
  • Reverse twist intermediate ring (LCR) — provides superior groove side sealing and enhanced cylinder wall contact via taper race machining
  • CP-20 oil control ring assembly (OCR) — features a 20-degree ear angle for maximum side sealing against the cylinder wall, plus a chemically polished expander for improved oil drain-back
  • Pre-lapped finish — rings seat immediately upon installation, virtually eliminating traditional break-in time
  • Ring tension, coatings, and materials are optimized per application for reduced friction and extended service life

As a MAHLE/Perfect Circle part, the 41240CP.030 is manufactured to the same standards used in original equipment production. This ring set is the trusted choice for engine rebuilders working on GM Iron Duke 2.5L four-cylinder engines as well as Mercruiser 3.0L marine inline-four applications.

Products specifications

Fits

Ford F-150 2015-20; Jeep CJ7 1980, CJ5 1980; Chevrolet Monza 1978-80; Pontiac Ventura 1977, Sunbird 1977-80, Phoenix 1977-78, Astre 1977; Oldsmobile Starfire 1978-80; American Motors Concord 1980, Spirit 1980

Piston Ring Size

.030IN

Piston Ring Type

Premium

very hard to find parts. was very happy you had them.you won my business.thanks

seems great and will get great review if dash shows up working

Had the best price on the Thule bike rack I was looking for. Bought online on Friday....shipped on Monday. Looking forward to buying more things here!

Ordering was easy and qiuick

Autoplicity exceeded expectations and produc

fast and easy

Fast shipping and LOWEST PRICES AROUND.

Very easy shopping experience

Great experience! VERY low price that beat everyone else!

very easy to find parts and great price

I'm happy with my purchase and the service I received. I gave you guys a "good" rating instead of "excellent" on shipping only because I hate FedEx and would like to have another shipper option during checkout.

Ordered a VP Racing fuel container and fill tube late Friday and it's already on the way. <br>Best price online and very quick service. Great transaction will definitely order from vendor again. <br>Thanks Autoplicity.

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