Description

Piston Rings – Performance – 4.000 in Bore – Drop In – 1.5 x 1.5 x 3.0 mm 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 E921K”

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

    QA1 Shock Bushing Kit (1-Shock) B6031K

    SKU: QA1B6031K
    Product information
    • Weight0.36 lbs
    • Dimensions5.1 × 3.6 × 1.4 in
    • Length

      0.75 in

    • Inside Diameter

      0.625 in

    • Material

      Polyurethane

    • Color

      Black

    • Finish

      Natural

    Details...
    Original price was: $30.75.Current price is: $27.95.Add to cart
    Original price was: $30.75.Current price is: $27.95.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    MSD IGNITION Replacement Shaft ASY11145

    SKU: MSDASY11145
    Product information
    • Weight0.78 lbs
    • Dimensions12 × 1.85 × 0.75 in
    • Quantity

      Each

    • Outside Diameter

      0.563 in

    • Length

      11.375 in

    • Material

      Chromoly

    • Color

      Black

    Details...
    Original price was: $150.07.Current price is: $136.43.Add to cart
    Original price was: $150.07.Current price is: $136.43.
    Quantity Only 4 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    MSD IGNITION Timing Pro Self Powered Timing Light 8991

    SKU: MSD8991
    Product information
    • Weight3.02 lbs
    • Dimensions15.2 × 11 × 3.9 in
    • Style

      Gun

    • Single / Double Wire

      Single Wire

    • Led / Incandescent Bulb

      Incandescent

    • Self Powered

      Yes

    • Battery Size

      AAA

    Details...
    Original price was: $330.00.Current price is: $299.95.Add to cart
    Original price was: $330.00.Current price is: $299.95.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    MSD IGNITION Pro-Billet Ignition Bundle SBC/BBC 85551K

    SKU: MSD85551K
    Product information
    • Weight10.68 lbs
    • Dimensions17.75 × 11.88 × 9.25 in
    • Product Line

      Pro Billet

    • Quantity

      Kit

    • Style

      Capacitive Discharge

    • Length

      8 in

    • Material

      Aluminum

    Details...
    Original price was: $770.00.Current price is: $699.95.Add to cart
    Original price was: $770.00.Current price is: $699.95.
    Quantity Only 8 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    MOPAR PERFORMANCE Priming Tool P4286800AB

    SKU: MOPP4286800AB
    Product information
    Details...
    Original price was: $12.31.Current price is: $11.19.Add to cart
    Original price was: $12.31.Current price is: $11.19.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    KYB SHOCKS Strut-Plus SR4266

    SKU: KYBSR4266
    Product information
    • Weight21.253 lbs
    • Dimensions30 × 9 × 9 in
    • Product Line

      Strut-Plus

    • Internal Design

      Twintube

    • Gas/Hydraulic

      Gas

    • Spring Included

      Yes

    • Spring Material

      Steel

    Details...
    Original price was: $207.05.Current price is: $188.23.Add to cart
    Original price was: $207.05.Current price is: $188.23.
    Quantity Only 6 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    SKYJACKER Hydro Shock w/ Red Boot H7059

    SKU: SKYH7059
    Product information
    • Weight6.365 lbs
    • Dimensions24.5 × 3.2 × 3.05 in
    • Product Line

      Hydro H7000 Series

    • Internal Design

      Twintube

    • Gas/Hydraulic

      Hydraulic

    • Compressed Length

      16.56 in

    • Extended Length

      28.75 in

    Details...
    Original price was: $58.00.Current price is: $51.87.Add to cart
    Original price was: $58.00.Current price is: $51.87.
    Quantity Only 4 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    TRANS-DAPT Bb Chevy Trpl Lwp Lower 9724

    SKU: TRA9724
    Product information
    • Weight3.53 lbs
    • Dimensions17.05 × 10.1 × 3.5 in
    • Diameter

      7.8 in

    • Short / Long Water Pump

      Long

    • Material

      Steel

    • Color

      Chrome

    • Finish

      Plated

    Details...
    Original price was: $82.65.Current price is: $75.14.Add to cart
    Original price was: $82.65.Current price is: $75.14.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    VENTSHADE Window Ventvisor 94981

    SKU: VEN94981
    Product information
    • Weight2.7 lbs
    • Dimensions47 × 12 × 2 in
    • Product Line

      Original Ventvisor

    • Application Specific

      Yes

    • Front Mounting Style

      Stick-On

    • Rear Mounting Style

      Stick-On

    • In Channel / Out Of Channel

      Out of Channel

    Details...
    Original price was: $77.00.Current price is: $69.99.Add to cart
    Original price was: $77.00.Current price is: $69.99.
    Quantity Only 1 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    HOWE Dust Boot For 33658 33771

    SKU: HOW33771
    Product information
    • Weight0.05 lbs
    • Dimensions3.9 × 3.55 × 0.55 in
    • Outside Diameter

      3.154 in

    • Inside Diameter

      1.957 in

    • Material

      Rubber

    • Color

      Black

    • Finish

      Natural

    Details...
    Original price was: $6.02.Current price is: $5.47.Add to cart
    Original price was: $6.02.Current price is: $5.47.Add to wishlist

    90