My Account
My Garage
Shopping Cart
MY GARAGE Select Vehicle
MY GARAGE

MAHLE 40668CP Premium Piston Ring Set

(Jeep Wrangler 1987-90, Cherokee 1974-83, Gladiator 1965-69, CJ7 1976-86, CJ5 1968-83, Grand Wagoneer 1984-86, J10 1974-87 + 76 more models)

Manufacturer

Part Number

40668CP
Sale Price

$68.92

3 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

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 40668CP Premium Piston Ring Set delivers professional-grade engine sealing performance with advanced technology designed for optimal power and longevity. As a leader in OE and aftermarket engine components, MAHLE engineers these piston rings to meet exacting quality standards for today's engine builders.

Key Features:

  • Pre-lapped design seats immediately, virtually eliminating break-in time for faster installation
  • Barrel-faced compression rings with CNC-controlled gap chamfer optimize compression and reduce blow-by
  • Reverse twist intermediate rings provide superior groove side sealing with taper race machining for enhanced contact
  • Exclusive CP-20 oil ring assemblies feature a 20-degree ear angle for best-in-class cylinder wall sealing
  • Special chemical polish on oil ring expander enhances oil drain back efficiency
  • Ring materials, coatings, and tension optimized to reduce friction and extend service life
  • Installer-friendly design for ease of installation

MAHLE Premium piston ring sets are engineered using advanced simulation and computer development tools to minimize friction and maximize ring-to-piston sealing. Whether you're rebuilding a vintage classic or maintaining a workhorse engine, these rings provide the unmatched quality and performance that professional engine builders trust.

Products specifications

Fits

Jeep Wrangler 1987-90, Cherokee 1974-83, Gladiator 1965-69, CJ7 1976-86, CJ5 1968-83, Grand Wagoneer 1984-86, J10 1974-87, Wagoneer 1965-73, 1980-83, J20 1974, 1976, Scrambler 1981-85, Commando 1972-73, CJ6 1969-75, Jeepster 1968-73 + 70 more models

Piston Ring Material

Plasma-Moly Cast Iron

Piston Ring Size

Standard

Piston Ring Type

Premium

Top Ring Material

Cast iron

Best price and easy to use web site.

lowest price.that GR8

so far so good

Found Autoplicity through price searching. Best price, easy to navigate site, quick service. Bookedmarked for future use!

Autoplicity ships fast and has quality products for great prices. I am very pleased with their degree of service. A+++

Good experience

Fast, easy and very competitive prices. The customer service was very good with a quick and helpful response. I will shop here again!

GREAT DEAL

Ordering the product was easy and rep. Was helpful! The product was shipped fast and came a little messed up in package but complete to my knowledge.

Only site i could find what i was looking for and at an unbeatable price. Shipping was very fast, no problems what so ever. Would recommend this site to anybody and everybody! Will be shopping here again real soon!!!

Best price for Rancho Shocks anywhere on the net! Ordered by phone and CSR gave me a better deal on shipping then the automated on site calculator.

Quick and easy with clear part numbers and photos.

Great customer service and fast shipping. I highly recommend this company for auto parts.

Your prices for Metal Rescue were the best I could find and your shipping was fast, although I screwed up and ordered a quart when I though I ordered a gallon

Share icon
Return Policy
Returns are easy at THMotorsports

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