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 4145MS Piston Ring Set 4.145" Bore 1/16 1/16 3/16 Standard Tension

Part of: MAHLE Piston Ring Set Bore Standard Tension

Other options in this family: MAHLE 4030MS MAHLE 4155MS MAHLE 4390MS MAHLE 4080MS MAHLE 4280MS

Manufacturer

Picture for manufacturer MAHLE

Part Number

4145MS
5 reviews
Sale Price

$104.54

In Stock (10+)

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 MAHLE 4145MS piston ring set is engineered for 4.145" bore engines and features a drop-in design with standard tension configuration. This three-piece ring set uses 1/16" top ring, 1/16" second ring, and 3/16" oil ring dimensions for reliable sealing and performance.

Key Features:

  • Top ring: Ductile iron construction with plasma moly coating and barrel face configuration for superior wear resistance
  • Second ring: Cast iron reverse twist design for improved oil control
  • Oil ring: 3-piece standard tension style for optimal cylinder wall sealing
  • Ultra-flat ring flanks maximize ring-to-piston sealing efficiency
  • Computer-optimized design minimizes friction for measurable horsepower gains

MAHLE's advanced piston ring simulation and development tools produce rings that deliver free horsepower through reduced friction. The precision-engineered ring geometry provides consistent sealing performance on both the dyno and the track, making this ring set an excellent choice for performance and stock engine builds requiring 4.145" bore rings.

Products specifications

Bore (in)

4.145 in.

Bore (mm)

105.283mm

File Fit

No

Gapless

No

Oil Ring Included

Yes

Oil Ring Material

Stainless steel

Oil Ring Tension

Standard

Oil Ring Thickness

3/16 in.

Quantity

Sold as a set.

Second Ring Facing Material

Cast iron

Second Ring Included

Yes

Second Ring Material

Cast iron

Second Ring Thickness

1/16 in.

Top Ring Facing Material

Plasma-moly

Top Ring Included

Yes

Top Ring Material

Ductile iron

Top Ring Thickness

1/16 in.

Piston Ring Thickness

1/16, 1/16, 3/16

Prop 65

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

Easy

Great prices, super fast shipping!

Everything went smoothly, love the prices and the ease of transaction, hope to buy from you real soon, Nice people.

Very fast and easy ordering system. My order was shipped the next day.

Best price anywhere for a brand name item. Fast inexpensive shipping!

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