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 4185MS 4.185" Bore Piston Ring Set 1/16 1/16 3/16

Part of: MAHLE Piston Ring Set Bore

Other options in this family: MAHLE 4040MS MAHLE 8350MS-12 MAHLE 8700MS-12 MAHLE 9950MS-12 MAHLE 4310MS

Manufacturer

Picture for manufacturer MAHLE

Part Number

4185MS
6 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 4185MS piston ring set is engineered for 4.185" bore engines and features a drop-in design with standard tension configuration. This three-ring set uses 1/16" top ring, 1/16" second ring, and 3/16" oil ring sizing for reliable sealing and performance.

Key Features:

  • Top ring: Ductile iron construction with plasma moly coating and barrel face profile for superior wear resistance
  • Second ring: Cast iron reverse twist design for optimal oil control
  • Oil ring: 3-piece standard tension configuration for effective lubrication management
  • Ultra-flat ring flanks maximize ring-to-piston sealing efficiency
  • Advanced design minimizes friction for improved horsepower output

MAHLE utilizes piston ring simulation and computer development tools to engineer rings that reduce friction losses while maintaining excellent sealing performance. The precision-manufactured ring flanks ensure optimal contact with the piston groove, resulting in measurable performance gains on both the dyno and track.

Products specifications

Bore (in)

4.185 in.

Bore (mm)

106.299mm

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.

Prop 65

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

Piston Ring Thickness

1/16, 1/16, 3/16

Product was as described, great price and reasonable shipping cost. Shipping was also very quick.

RAPID SHIPPING RESPONSE BEST PRICING EVER!!!!!!!!!!!!!!

Thanks for offering instant $5.00 back on Order Number: 12559 for writing this review. <br>Great prices and fast shipping. I do not have the part yet but it was the best price on a LT1 MSD opti spark anywhere on the net. Great deal!!! And it was still cheaper than Jegs or Summit even with overnight shipping. Will use again if the deals are this good!

Great price, very helpful tech support,thanks will buy again<br><br> Chris

Excellent prices and fast shipping. Placing another order as I type. Great seller.

Very good company! Shipped out product very fast!!! I can say i will use them again

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