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

Sealed Power E937K25MM Plasma-Moly Piston Ring Set 3.780 in Bore 8-Cylinder .25MM Oversize

(Chevrolet Silverado 1500 1999-2013, Suburban 1500 2000-14, Tahoe 2000-14, Impala 2006-09, Colorado 2009-12, Trailblazer 2006-09 + 30 more models)

Manufacturer

Picture for manufacturer Sealed Power

Part Number

E937K25MM
9 reviews
Sale Price

$117.83

1 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

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 Sealed Power E-937K .25MM is a premium engine piston ring set designed for 8-cylinder applications with a 3.780-inch (96.012mm) bore at a 0.25mm oversize specification. Manufactured to ISO and QS certified standards, this set delivers the precision and durability required for today's demanding engine rebuilds.

The top compression rings feature a latest-generation Plasma-Moly face coating, a technology that significantly reduces friction and provides outstanding resistance to scuffing — extending engine life and improving overall performance. The ring thickness configuration is 1.5mm (top) x 1.5mm (second) x 3.0mm (oil), and the set is designed as a drop-in replacement with standard ring end gaps for straightforward installation.

Key Features:

  • Plasma-Moly top ring coating — reduces friction and resists scuffing
  • 3.780 in. (96.012mm) bore diameter — 0.25MM oversize specification
  • Ring thickness: 1.5mm x 1.5mm x 3.0mm (top / second / oil)
  • Standard tension design for consistent sealing performance
  • Steel and ductile iron construction for long-term durability
  • Standard ring end gaps for easy, drop-in installation
  • Meets or exceeds OEM specifications
  • ISO and QS certified manufacturing process
  • Designed to seal mild- to high-compression engines and prevent oil blowby
  • Complete set for one 8-cylinder engine

Sealed Power has been a trusted name in engine components for decades, delivering OE-quality parts that perform reliably across a wide range of domestic and import applications. The E-937K .25MM ring set is the correct choice when rebuilding an engine that requires a 0.25mm overbore.

Products specifications

Fits

Chevrolet Silverado 1500 1999-2013, Suburban 1500 2000-14, Tahoe 2000-14, Impala 2006-09, Colorado 2009-12, Trailblazer 2006-09, Monte Carlo 2006-07, Avalanche 1500 2002-06, Avalanche 2007-13, Express 3500 2003-16 + 26 more models

Feature 2

Increases wear resistance in dirty air conditions

Oil Ring Width

3.00

Radial Wall Thickness - Top (in)

0.151

Oil Ring Design

3 Piece Flex Vent

Oversized Amount

0.25

Outside Diameter

96.25

Outside Diameter (mm)

96.25

Top Ring Face Design

High Tensil

Ring Set Groove Widths (mm)

1.5 x 1.5 x 3.0

Bore Size (mm)

96.00

Top Ring Width

1.50

Bore Diameter

96.00

File Fit

No

Top Ring Radial Wall Thickness

0.151

File Fit (Y/N)

N

2nd Ring Width (mm)

1.50

2nd Ring Face Design

Reverse Torsional

2nd Ring Material

Grey Iron w/Phosphate Coating

Oversize (mm)

0.25

Top Ring Material

Ductile Iron w/Plasma Moly

Top Ring Width (mm)

1.50

Oil Ring Width (mm)

3.00

2nd Ring Width

1.50

Top Ring Material

Steel w/Moly

Cylinder Quantity

8

I got the wrong part and the phone number doesn't work

Happy with order

great pricing and super fast shipping! ill continue to shop here!

Price was spot on and shipping was very fast! Highly recommend THMotorsports and will be checking to shop with them again!

I never received anything about shipping so I contacted customer support. They said it was a direct shipment and they would check on it for me and get back to me. I never heard back from them. Shortly after that I did receive a message from the carrier saying they have my shipment and scheduled a delivery. They said they would call me 30 mins before the delivery so I could get off work and come to inspect it before signing for it. That didnt' happen either my wife called me first thing in the morning and say they are here delivering it now so I had to run home so I could inspect it. The driver was really nice and waited for me to get there.

Shipped right away and arrived in good condition!

Qwick service

Had the tires I wanted at a fair price and delivered quickly! Thank you!

aok

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