HP Smart Coil Ignition Harness - 558-312
SKU: 38594608500

HP Smart Coil Ignition Harness - 558-312

Sale price$134.97 Regular price$149.97
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 4 - Jul 9

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

HP Smart Coil Ignition Harness - 558-312Overview: HP Smart Coil ignition sub harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory GM LSx coil harnesses, but plug into Holley HP Smart Coils. They plug into Holley LSx plug and play main harnesses if one wants to replace factory LSx coils with Holley HP Smart Coils. If using a non LSx main harness, purchase PN 558 307 for connectors, wiring, terminals to connect directly to a

Overview:

HP Smart Coil ignition sub-harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory GM LSx coil harnesses, but plug into Holley HP Smart Coils. They plug into Holley LSx plug and play main harnesses if one wants to replace factory LSx coils with Holley HP Smart Coils. If using a non-LSx main harness, purchase PN 558-307 for connectors, wiring, terminals to connect directly to a Holley HP or Dominator ECU

Features:

  • Includes a pair of coil harnesses for an 8 cylinder engine
  • Similar to factory GM LSx coil harnesses
  • For use with Holley HP or Dominator ECUs

Application:

Year Make Model Submodel Engine Size
Universal

Specs:

Brand Holley EFI
Emission Code 3
Harness Application Universal
Harness Type Ignition
Product Type Distrutorless Ignition - DIS - smart coil
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 38594608500

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.5 ★★★★★
Based on 859 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
M
Verified Purchase
Myrna Pitner
Belleville, US
★★★★★ 4
He loved Elmo
Very soft and cute , my greatgrandson love it .
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 19, 2026
K
Verified Purchase
K Stame
West Palm Beach, US
★★★★★ 5
Very soft and adorable
I am so glad I ordered this for my niece's baby shower. This Elmo is adorable. So soft and I love the rattle sound. Very happy with my purchase
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2025
G
Verified Purchase
Gerline
Louisville, US
★★★★★ 5
If you're reading this make the purchase!
My 1 year old loves her Elmo so much! Such a cute stuffy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 22, 2026
E
Verified Purchase
Emilie Vargas
Lexington, US
★★★★★ 5
Baby toys
My greatgrandson loves it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 17, 2026
V
Verified Purchase
Vanessa Melendez
Cuba, US
★★★★★ 5
Elmo’s world
Elmo is super soft & perfect for a baby who loves Sesame Street. My daughter loves this Elmo, the knotted ends keep her little hands busy, adorable touch of having a pacifier holder on Elmo’s hand. Light weight. Easy to clean & wash. Perfect size for little hands. Great cost.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 14, 2025

recommand products