Holley EFI 558-500 Fuel Injection Harness

☆☆☆☆☆ reviews

US$426.38
Price when purchased online
Free shipping Free 30-day returns

Sold and shipped by
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here.
US$426.38
Price when purchased online
Free shipping Free 30-day returns

How do you want your item?
You get 30 days free! Choose a plan at checkout.
Shipping
Arrives Nov 13
Free
Pickup
Check nearby
Delivery
Not available

Sold and shipped by
Free 30-day returns Details

Product details

Management number 254257958 Release Date 2026/11/07 List Price US$426.38 Model Number 254257958
Category

GM LS1/6, 24X Crank Sensor, Bosch Injector;<br><br>An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Holley's Holley EFI Harness Kit for your GM LS engine comes complete with the main harness, power harness and injector harness to support your primary system!;

  • Harness Kit Includes; Main Power Harness, LS1 Main Harness & V-8 Injector harness
  • Simple Installation
  • Works with HP or Dominator ECU's
Manufacturer part number 558-500
Automotive electrical part & accessory type Wires
Compatibility GM LS1/6, 24X Crank Sensor, Bosch Injector
Vehicle fitment type Specific
Brand Holley EFI
Vehicle make HP
Vehicle model LS1/6
Assembled product weight 5.65 lb
Rec. use Automotive
Items included Main Power Harness, LS1 Main Harness & V-8 Injector harness
Accessories Main Power Harness, LS1 Main Harness & V-8 Injector harness
Color White
Count per pack 1
Vehicle type Car
Has written warranty No
Model 558-500
Automotive parts division Performance

Correction of product information

If you notice any omissions or errors in the product information on this page, please use the correction request form below.

Correction Request Form

Customer ratings & reviews

0 out of 5
☆☆☆☆☆
0 ratings | 0 reviews
How item rating is calculated
View all reviews
5 stars
15% (0)
4 stars
30% (0)
3 stars
15% (0)
2 stars
8% (0)
1 star
32% (0)
Sort by

There are currently no written reviews for this product.