Description

Piston Rings – Performance – 3.940 in Bore – Drop In – 5/64 x 5/64 x 3/16 in Thick – Standard Tension – Steel – Moly – 8-Cylinder – Kit

Why Choose Us?



Frequently Asked Questions​

As an Authorized Automotive Retailer in the United States, we take pride in guaranteeing 100% authentic products from all brands available on our website. With partnerships spanning 1,000+ brands and a network of 20+ distributor warehouses nationwide, we maintain millions of auto parts in inventory across the USA, ensuring quick shipping and reliable service to our customers. When you shop with us, you're investing in quality and trust.
We believe we have the fastest backorder system in the U.S. auto parts industry, thanks to our strong partnerships with brands and vendors. Nearly all backordered auto parts are shipped directly by the vendors without any additional delays, or they are placed as special orders on the same day. In most cases, backordered parts are delivered within 5-10 days.
We offer unbeatable prices and the best shipping rates on auto parts, with exclusive protection and insurance included to safeguard your order from damage or loss. Enjoy convenient door-to-door delivery, real-time tracking, and our 100% satisfaction guarantee for a smooth, worry-free experience.
Our standard shipping typically takes 1-3 business days. We will provide estimated shipping time for each product. While we aim to deliver as quickly as possible, this timeframe ensures all orders are processed, prepared, and dispatched with care. If the products are not ready for shipping in 72 hours, we will refund you 100%
Absolutely. Once your order is dispatched, you’ll receive an email with tracking details, so you can follow your shipment every step of the way. Every step of shipping process will be sent through email notifications or using tracking page.
Every product page includes a stock level indicator to show what’s available. We always update the inventory 24/24. We’ll be happy to check availability and provide updates on new stock arrivals if you need a help.
We’re sorry to hear that your order wasn’t delivered in perfect condition. Please email us with your order number, a description of the issue, and photographs of the damaged item. Once we receive this information, we’ll arrange for a replacement or refund and handle the return process.
You can return items within 30 days of receipt. Ensure the product is new in its original packaging and securely wrapped for safe transit. Once we receive the item in sellable condition, we’ll issue a full refund for the product value. Contact us for the return address and further instructions.

About SEALED POWER

With a history stretching back over a century, Sealed Power produces internal replacement components designed for high-performance applications on both track and street. Their product line includes pistons, piston rings, engine bearings, camshafts, oil pumps, timing components, and valvetrain products.

International Shipping

Below are estimated rates and delivery times for popular destinations; full carrier options are available at checkout.

Our dedicated team has years of experience managing international logistics and customs documentation to ensure smooth delivery from our US warehouse to your door. Please review our shipping policy and local import regulations before ordering.

Loading international estimates...

Reviews

There are no reviews yet.

Be the first to review “SEALED POWER Moly Piston Ring Set E178K30”

Your email address will not be published. Required fields are marked *

Recently viewed products

  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    SPECTRE Coupler SPE-9571

    SKU: SPE9571
    Product information
    Details...
    Original price was: $14.31.Current price is: $13.01.Add to cart
    Original price was: $14.31.Current price is: $13.01.
    Quantity Only 3 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    MSD IGNITION Replacement Cap 7408

    SKU: MSD7408
    Product information
    • Weight0.81 lbs
    • Dimensions6.6 × 6.4 × 3.2 in
    • Quantity

      Each

    • Variant

      Yes

    • Variant Group

      DistributorCaps4

    • Variant Column

      Color

    • Material

      Plastic

    Details...
    Original price was: $127.00.Current price is: $114.95.Add to cart
    Original price was: $127.00.Current price is: $114.95.
    Quantity Only 6 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    MOLECULE Complete Care Kit MOLMLCK164

    SKU: MOLMLCK164
    Product information
    • Weight4.16 lbs
    • Dimensions10.6 × 7.5 × 6.75 in
    • Quantity

      Kit

    • Variant

      Yes

    • Variant Group

      Material Cleaners1

    • Variant Column

      Quantity

    • Intended Purpose

      Fabric Wash Kit

    Details...
    Original price was: $76.95.Current price is: $69.95.Add to cart
    Original price was: $76.95.Current price is: $69.95.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    TCI Trans Fluid Max Shift Quart 950620

    SKU: TCI950620
    Product information
    • Weight1.935 lbs
    • Dimensions9.1 × 4.4 × 2.55 in
    • Quantity

      Each

    • Variant

      Yes

    • Variant Group

      TransmissionFluid51

    • Variant Column

      Volume,Quantity

    • Product Line

      Max Shift Racing

    Details...
    Original price was: $19.14.Current price is: $15.95.Add to cart
    Original price was: $19.14.Current price is: $15.95.
    Quantity Only 9 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    FLOWMASTER 2.5in Tailpipe 15801
    Add to wishlist

    FLOWMASTER 2.5in Tailpipe 15801

    SKU: FLO15801
    Product information
    • Weight28 lbs
    • Dimensions66 × 16.5 × 12 in
    • Inlet Quantity

      1.0

    • Outlet Quantity

      1.0

    • Outlet Diameter

      2-1/2 in

    • Overall Length

      65.25 in

    • Material

      Steel

    Details...
    Original price was: $262.00.Current price is: $237.95.Add to cart
    Original price was: $262.00.Current price is: $237.95.
    Quantity Only 8 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    EDGE PRODUCTS Programmer - Evolution CS2 - Ram/Ford/GM 85350
    Add to wishlist

    EDGE PRODUCTS Programmer – Evolution CS2 – Ram/Ford/GM 85350

    SKU: EDG85350
    Product information
    Details...
    Original price was: $473.00.Current price is: $429.95.Add to cart
    Original price was: $473.00.Current price is: $429.95.Add to wishlist
  • Add to wishlist
    Sale
    COMPETITION ENGINEERING Wheel-E-Bars - Chrome/ Black C2036
    Add to wishlist

    COMPETITION ENGINEERING Wheel-E-Bars – Chrome/ Black C2036

    SKU: COE2036
    Product information
    • Weight25.4 lbs
    • Dimensions43.75 × 8 × 3.75 in
    • Material

      Aluminum

    • Color

      Black

    • Finish

      Anodized

    • Quantity

      Kit

    • Variant

      Yes

    Details...
    Original price was: $762.44.Current price is: $662.99.Add to cart
    Original price was: $762.44.Current price is: $662.99.
    Quantity Only 1 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    CHASSIS ENGINEERING Single Nitrous Bottle Bracket Stand-Up Style C/E5501A
    Add to wishlist

    CHASSIS ENGINEERING Single Nitrous Bottle Bracket Stand-Up Style C/E5501A

    SKU: CCE5501A
    Product information
    • Weight4.1 lbs
    • Dimensions19.2 × 12.4 × 3.5 in
    • Inside Diameter

      7.125 in

    • Quantity

      Each

    • Variant

      Yes

    • Variant Group

      Nitrous Oxide Bottle Brackets5

    • Variant Column

      Intended Bottle Size

    Details...
    Original price was: $189.69.Current price is: $164.95.Read more
    Original price was: $189.69.Current price is: $164.95.Add to wishlist
  • Add to wishlist
    Sale
    BELL TECH Drop Spindle Set 2514
    Add to wishlist

    BELL TECH Drop Spindle Set 2514

    SKU: BLL2514
    Product information
    • Weight43.39 lbs
    • Dimensions16.5 × 14.3 × 6.9 in
    • Quantity

      Pair

    • Driver / Passenger Side

      Driver / Passenger

    • Raised / Lowered Ride Height

      Lowered

    • Raised / Lowered Pin Height Measurement

      2 in

    • Pin Style

      OEM

    Details...
    Original price was: $452.00.Current price is: $410.00.Add to cart
    Original price was: $452.00.Current price is: $410.00.
    Quantity Only 2 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    AUTOMETER Mini Ultra-lite Boost 4301
    Add to wishlist

    AUTOMETER Mini Ultra-lite Boost 4301

    SKU: ATM4301
    Product information
    • Weight0.65 lbs
    • Dimensions4.9 × 4.6 × 4.5 in
    • Product Line

      Ultra-Lite

    • Gauge Type

      Boost, Vacuum

    • Gauge Diameter (In)

      2-1/16 in

    • Gauge Diameter (Mm)

      52.4 mm

    • Sweep

      Full

    Details...
    Original price was: $95.60.Current price is: $86.91.Add to cart
    Original price was: $95.60.Current price is: $86.91.
    Quantity Only 3 left in stock!
    -+
    Add to cart
    Add to wishlist

    13