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MOROSO 73686 ULTRA 40 SPARK PLUG WIRES SBC CHEVY 350 383 UNDER HEADER HEI (RED)

US $105.99
as low as $36.16/mo with
Condition:
New
1,997 sold
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Shipping:
US $12.00 FedEx 2Day®.
Located in: Story City, Iowa, United States
Delivery:
Estimated between Thu, Oct 30 and Mon, Nov 3 to 94104
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Returns:
30 days returns. Seller pays for return shipping.
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eBay item number:330497600910
Last updated on Oct 17, 2025 16:01:20 PDTView all revisionsView all revisions

Item specifics

Condition
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ...
Manufacturer Warranty
Yes
Finish
Red
Fitment Type
Performance/Custom
Interchange Part Number
small block chevy V8 90 deg bo
Other Part Number
Ultra 40
Part Brand
MOROSO
Color
Red
UPC
084663736865
Diameter
8.65mm
Engine Family
Small Block Chevy (Gen 1)
Style
HEI Style
OE Spec or Performance/Custom
Performance/Custom
MPN
73686
Brand
Moroso
Type
Ignition Wire
Manufacturer Part Number
73686
Material
Silicone
Universal Fitment
No
Performance Part
Yes
Category

About this product

Product Information

Upgrade your car's ignition system with this spark plug wire set. It is made specifically for racing applications, so you know it can handle anything you throw at it. However, it can be used for street applications if you want. This spark plug wire set is unsleeved, so you can use whichever sleeve you prefer. This wire set is made specifically for small block Chevy engines, so you know it'll fit your motor. This item is a set of wires instead of just one.

Product Identifiers

Brand
Moroso
Manufacturer Part Number
73686
GTIN
0084663736865
UPC
0084663736865
eBay Product ID (ePID)
1511812566

Product Key Features

Performance Part
Yes
Universal Fitment
No
Material
Silicone
Type
Ignition Wire

Dimensions

Item Length
9.400
Height
3.7
Width
9.3
Length
9.4

Item description from the seller

About this seller

KMJPERFORMANCE

99.7% positive feedback1.2M items sold

Joined Feb 2004
Usually responds within 24 hours
Your source for Chevy, Ford, Mopar, Buick, OldsmobilePontiac, Lincoln, Mercury, Chrysler, Dodge, and more!From intakes to oil pans, radiators to gaskets, we've got you covered!

Detailed seller ratings

Average for the last 12 months
Accurate description
4.9
Reasonable shipping cost
5.0
Shipping speed
5.0
Communication
5.0

Seller feedback (504,733)

All ratingsselected
Positive
Neutral
Negative
  • 4***w (1412)- Feedback left by buyer.
    Past month
    Verified purchase
    Always great parts and a great price AAA+++
  • s***s (801)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    nice product, works great
  • s***2 (618)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    I have purchased many items from this seller and have always been satisfied with the quality and fast shipping! Highly recommended!
See all feedback

Product ratings and reviews

4.9
68 product ratings
  • 64 users rated this 5 out of 5 stars
  • 3 users rated this 4 out of 5 stars
  • 0 users rated this 3 out of 5 stars
  • 1 users rated this 2 out of 5 stars
  • 0 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

  • Top favorable review

    Coil wire is difficult

    Wires came preassembled (for SB Chevy under headers) except the coil wire which you custom cut . Getting the tight fitting boot over the coil wire is impossible unless you have silicone spray and even then its tough but doable. Got to a remote boat dock to install these then read the directions that I needed silicone spray. Fortunately I had som waterproofing spray which worked.

    Verified purchase: YesCondition: NewSold by: kmjperformance

  • Great product at a great price, even for a Canadian

    Great part for a great price, will be a nice upgrade from my current plug wires

    Verified purchase: YesCondition: NewSold by: kmjperformance

  • Moroso's awesome wire set!

    Put these on my 400 sbc in my 55 Chevy Truck. These wires are pre-cut to fit and they fit great. Were no hassle to install..........The engine is running fabulous again! Thanks! John Westerfield

    Verified purchase: YesCondition: NewSold by: kmjperformance

  • Great product

    The performance and fit is great I’m useing them on a engine in my river boat and they fit under the manifolds perfectly

    Verified purchase: YesCondition: NewSold by: kmjperformance

  • MOROSO ULTRA 40 SPARK PLUG WIRES SBC CHEVY 327 350 383 UNDER HEADER HEI

    these are great wires. good lengths , fit good, look great, and they come numbered for ease of getting them back onto the correct cylinder any time removal of more than one is required.

    Verified purchase: YesCondition: NewSold by: kmjperformance