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 42154CP.040 Plasma-Moly Piston Ring Set 4.105" Bore GM LS/LT V8

(Chevrolet Silverado 1500 2009-14, Tahoe 2009, SS 2014-16, Cheyenne 2014; GMC Yukon XL 1500 2007-14, Sierra 1500 2009-14, Yukon 2007-14 + 36 more models)

Manufacturer

Picture for manufacturer MAHLE

Part Number

42154CP.040
10 reviews
Sale Price

$144.18

Estimated ship date Tuesday, November 24

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 42154CP.040 is a premium plasma-moly piston ring set engineered for GM LS and LT V8 engines running a 4.105" bore (+.040" oversize). Designed to OE form, fit, and function standards, this set is the preferred choice of professional engine builders for both performance rebuilds and high-quality restorations. Ring dimensions are 1.5mm / 1.5mm / 2.5mm (top compression / second / oil), and the set covers all 8 cylinders.

Key Features:

  • SAE 9254 high-alloy steel construction — delivers higher tensile and yield strength, extended fatigue resistance, and increased material hardness
  • Plasma-moly top compression rings with barrel-faced contact area for more efficient compression and CNC-controlled gap chamfer to minimize blowby
  • Reverse-twist intermediate (napier) rings with taper race machining for superior groove side sealing and enhanced cylinder wall contact
  • CP-20 oil ring assemblies featuring an exclusive 20-degree ear angle for optimal side sealing in the piston oil ring groove, plus a special chemical polish on the expander for improved oil drainback
  • Pre-lapped from the factory — seats immediately upon installation, virtually eliminating break-in time
  • Ring tension and coatings optimized for reduced friction, minimized oil consumption, and extended service life

MAHLE is one of the world's largest OE piston ring manufacturers, supplying more than 100,000 OE and aftermarket parts globally. The 42154CP.040 ring set delivers the same precision engineering found in original equipment applications, making it an ideal solution for engine rebuilders seeking a direct-fit, installer-friendly ring set for oversize LS/LT bore applications.

Products specifications

Fits

Chevrolet Silverado 1500 2009-14, Tahoe 2009, SS 2014-16, Cheyenne 2014; GMC Yukon XL 1500 2007-14, Sierra 1500 2009-14, Yukon 2007-14, Sierra 2008-14; Ford F-150 1987-96, 2000-17, F-250 Super Duty 1999-2017 + 33 more models

Piston Ring Size

.040IN

A very satisfactory experience. The price I paid was the lowest I found on the internet for this product. Ordering was easy, and without hassle. My order was shipped promptly and arrived sooner than I expected. Order date to receipt was only 6 days

Cheap

Really like the Amazon Payment Option. Made things much easier.

Good

Great seller, great price and item was in stop. Shipped out products within 2 days with tracking number. Will buy again!

None

Excellent service. I called in Monday for a hard to find item which I had ordered from several other online shops who despite saying were In Stock online were not actually in stock at all and the orders were canceled after waiting a week to find out. They had the item in stock as listed on their website and shipped the next day. The price was the cheapest of anyone who actually had the item in stock by a substantial amount.

Excellent transaction, received item very quickly and it was a lot cheaper than any other online retailer that I was able to find, could not even find cheaper on e bay.

Great Price. Great communication/tracking

Great place to buy from! any questions or emails are quickly answered AND you can't beat the price!! Will definitely be coming back to shop :)

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