Description

Spark Plug Wire Set – Ultra 40 – Spiral Core – 8.65 mm – Sleeved – Black – 90 Degree Plug Boots – HEI Style Terminal – Under Header – Big Block Chevy – 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 MOROSO

Moroso is one of the largest manufacturers of race and performance parts and tools. With over 4000 products, from oil pans and oiling systems, to ignition wire, ignition components, valve covers, fuel system equipment, air cleaners, hard-core racing tools, chassis and suspension equipment, and numerous other performance parts, Moroso is a recognized leader in the motorsports industry.

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 “MOROSO Ultra 40 Plug Wire Set – Black 73820”

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 Upper Loop Conversion Kit SS300LT

    SKU: QA1SS300LT
    Product information
    • Weight0.285 lbs
    • Dimensions3.6 × 2.95 × 1.75 in
    • Material

      Aluminum

    • Color

      Natural

    • Finish

      Anodized

    • Quantity

      Kit

    • Thickness

      1.25 in

    Details...
    Original price was: $27.00.Current price is: $23.95.Add to cart
    Original price was: $27.00.Current price is: $23.95.
    Quantity Only 4 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    MALLORY E-Spark Replacement Module 6100M

    SKU: MAL6100M
    Product information
    • Weight0.181 lbs
    • Dimensions7.8 × 6.05 × 1.55 in
    • Material

      Plastic

    • Color

      Black

    • Finish

      Natural

    • Quantity

      Each

    • Product Line

      E-Spark

    Details...
    Original price was: $128.00.Current price is: $115.95.Add to cart
    Original price was: $128.00.Current price is: $115.95.
    Quantity Only 6 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    SCRIBNER Holley Carb Container 4150

    SKU: SCR4150
    Product information
    • Weight7.1 lbs
    • Dimensions15.3 × 15.3 × 10.7 in
    • Length

      14.2 in

    • Width

      14.2 in

    • Height

      10. in

    • Material

      Plastic

    • Color

      Gray

    Details...
    Original price was: $79.74.Current price is: $66.45.Add to cart
    Original price was: $79.74.Current price is: $66.45.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    K AND N ENGINEERING Stub Stack 85-0200

    SKU: KNE85-0200
    Product information
    • Weight0.73 lbs
    • Dimensions7.5 × 7.3 × 4 in
    • Material

      Plastic

    • Color

      Black

    • Finish

      Natural

    • Quantity

      Each

    • Height

      1.688 in

    Details...
    Original price was: $67.90.Current price is: $61.73.Add to cart
    Original price was: $67.90.Current price is: $61.73.
    Quantity Only 4 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    KEEP IT CLEAN Race Switch Panel KICPANEL7

    SKU: KICKICPANEL7
    Product information
    • Weight0.92 lbs
    • Dimensions8.9 × 7.3 × 3.25 in
    • Height

      2.6 in

    • Hardware Included

      Yes

    • Material

      Aluminum

    • Color

      Silver

    • Finish

      Paint

    Details...
    Original price was: $91.94.Current price is: $79.95.Add to cart
    Original price was: $91.94.Current price is: $79.95.Add to wishlist
  • Add to wishlist
    Sale
    FLOWTECH Chevy Header Gaskets 99150FLT
    Add to wishlist

    FLOWTECH Chevy Header Gaskets 99150FLT

    SKU: FLT99150
    Product information
    • Weight0.44 lbs
    • Dimensions22.2 × 4.25 × 0.65 in
    • Product Line

      Real Seal

    • Material

      Aluminum

    • Quantity

      Pair

    • Reusable

      Yes

    • Port Shape

      Round

    Details...
    Original price was: $106.00.Current price is: $96.25.Add to cart
    Original price was: $106.00.Current price is: $96.25.
    Quantity Only 2 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    COMPETITION ENGINEERING 4-Link Kit C2017
    Add to wishlist

    COMPETITION ENGINEERING 4-Link Kit C2017

    SKU: COE2017
    Product information
    Details...
    Original price was: $465.74.Current price is: $404.99.Add to cart
    Original price was: $465.74.Current price is: $404.99.
    Quantity Only 2 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    AUTOMETER Bulb & Socket 3220
    Add to wishlist

    AUTOMETER Bulb & Socket 3220

    SKU: ATM3220
    Product information
    • Weight0.035 lbs
    • Dimensions3.8 × 3.8 × 0.95 in
    • Socket Style

      T3 Wedge

    • Quantity

      Kit

    • Intended Application

      Bulb and Socket

    • Side 1 Connection Style

      Light Socket

    • Side 2 Connection Style

      Wire Ends

    Details...
    Original price was: $9.74.Current price is: $8.85.Add to cart
    Original price was: $9.74.Current price is: $8.85.Add to wishlist

    10