My Account
My Garage
Shopping Cart
MY GARAGE Select Vehicle
MY GARAGE

Perfect Circle 3150034-030 Plasma-Moly Piston Ring Set 4.030" Bore

Manufacturer

Part Number

3150034-030
Sale Price

$113.56

1 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Perfect Circle 3150034-030 is a high-performance plasma-moly piston ring set designed for 4.030 inch bore engines. Now manufactured by MAHLE Original, this ring set delivers the proven quality and reliability that professional engine builders have trusted for over 100 years.

Key Features:

  • 4.030 inch bore diameter (.030 inch oversize)
  • Ring thickness: 5/64 inch, 5/64 inch, 3/16 inch configuration
  • Plasma-moly face coating for extended service life and superior wear resistance
  • SAE 9254 steel construction provides ultimate tensile strength and hardness
  • Standard tension design suitable for street and performance applications
  • Reduced ring mass improves sealing and reduces friction
  • 8-cylinder set (complete rings for one engine)

MAHLE's proprietary plasma face coating technology eliminates ring breakage, reduces side wear, and minimizes groove pound-out problems. The smaller cross-section steel ring design allows for better conformability to cylinder bore distortion, making these rings ideal for high-output and high-RPM engines. Each set includes compression and oil rings precision-manufactured to OE specifications for trouble-free installation and optimal performance.

Products specifications

Bore (in)

4.030 in.

Bore (mm)

102.362mm

File Fit

No

Gapless

No

Notes

Taper face reverse twist design second ring.

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

5/64 in.

Top Ring Facing Material

Plasma-moly

Top Ring Included

Yes

Top Ring Material

Ductile iron

Top Ring Thickness

5/64 in.

The floor mats I purchased for my car work like a dream. They were just as described in the listing. The shipping was also pretty quick. I just wish the price was about $20 cheaper. Other than that I was completely satisfied.

Ordered on a Thursday evening and received my parts on Tuesday. Very quick but the website couldn't provide proper tracking info.

3/13/2012<br>Order #6330 (3/12/3012)<br>Autoplicity had the cheapest price on the web for the Thule Raceway 3 Bike Rack...great customer service and speedy delivery.<br>Thanks...Mike P. NY

Great price and fast shipping.

Very good service, product arrived promptly.

Recieved item in great shape. Could be a little faster with shipping, but over all, I had a good pleasant experience. Thank you.

Smooth transaction! Best price on the floor liner I was looking for, shipped promptly with tracking info provided, exactly as advertised. THANKS!!

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