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 4145-300S 4.145" 3.0mm Oil Ring Expander Standard Tension

Part of: MAHLE Bore Oil Ring Expander Standard Tension

Other options in this family: MAHLE 4050-300S MAHLE 4030-300S MAHLE 4135-300-S MAHLE 4155-300S MAHLE 4040-300S

Manufacturer

Picture for manufacturer MAHLE

Part Number

4145-300S
11 reviews
Sale Price

$14.27

In Stock (10)

delivery box

Usually delivered within 2 days

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 4145-300S is a precision-engineered oil ring expander designed for high-performance engine builds. This component features a 4.145-inch bore diameter with a 3.0mm width specification, providing standard tension for optimal oil control in your engine's piston ring assembly.

Key Features:

  • Bore diameter: 4.145 inches for precise fitment
  • 3.0mm width oil ring expander design
  • Standard tension specification for consistent oil control
  • Manufactured by MAHLE, a trusted leader in engine components
  • Precision-manufactured for reliable performance and durability

Oil ring expanders work in conjunction with oil control rings to maintain proper tension against the cylinder wall, ensuring effective oil management and preventing excessive oil consumption. This MAHLE expander is designed to meet OE specifications while providing the quality and reliability demanded by engine builders and professional technicians.

Products specifications

Prop 65

WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov

Fast, easy

Quick

Lowest prices I have found and great customer service!

Great experience with autoplicity. Fast shipping. Ordered on 5/31 got bed cover on 6/2. Fit truck perfect.

ORDER# 25690<br><br>Fast shipping, great product!!! Will return for my auto needs. Thanks!!!

Great prices.

VERY EASY WITH AMAZON SIGN IN

First time like it so far

Great prices

Good prices

Very easy transaction. Website easy to navigate. Order shipped the next day. Pleasure to do business with!<br><br>

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