15% OFF ORDERS $35+ | 20% OFF $100+ | ONLINE ONLY
USE CODE
PITSTOP
*
Exclusions apply.
Advance Auto Parts Logo
Choose a Store
  • Shop All
  • Replacement Parts
  • Performance Parts
  • Accessories
  • Oil & Fluids
  • Special Offers
  • Advance Rewards
  • Advice & How-Tos
  • Project Guides
  • FAQ / Help Desk
Share
Product thumb
Product main large

ACDelco Spark Plug Wire Set: Fiberglass Reinforced Latex Graphite Core

(142 reviews)
Part # 9748HH
limited lifetime warranty
Loading...
How Would You Like To Get This Item?

Store Pickup

Loading...Loading...Loading...

Same Day Home Delivery

Loading...Loading...Loading...

Home Delivery

Loading...Loading...Loading...
Loading...
Loading...
Loading...Loading...Loading...Loading...Loading...

Product Information

Product Details
Part No. 9748HH
Warranty Details (Limited Lifetime Warranty)
ACDelco Professional Spark Plug Wire Sets consist of a set of wires, encased in an insulating material, connectors, and insulating boots, and are a high quality replacement for many vehicles on the road today. The wires transfer high voltage pulses between the voltage source, the distributor, and the spark plugs. These premium aftermarket replacement components are manufactured to meet your expectations for fit, form, and function.

Product Features:
  • Professional, premium aftermarket replacement
  • Provides the performance and dependability you expect from ACDelco
  • Manufactured to meet expectations for fit, form, and function
Specifications
Distributor Coil End Boot Degree:
45 °

Distributor Coil End Terminal Type:
Snap Lock

Insulation Material:
Silicone Rubber

Programming Required:
NO

Resistance:
1000

Spark Plug Boot Material:
Silicone Rubber

Spark Plug End Boot Degree:
180 °

Wire 1 Length:
11 in

Wire 2 Length:
11 in

Wire 3 Length:
11 in

Wire 4 Length:
11 in

Wire 5 Length:
11 in

Wire 6 Length:
11 in

Wire 7 Length:
11 in

Wire 8 Length:
11 in
Loading...
Loading...Loading...Loading...Loading...Loading...
4.81 out of 5
142 Customer Reviews
98% of respondents would recommend this to a friend
Ratings Distribution
5 Stars
123
4 Stars
13
3 Stars
5
2 Stars
0
1 Star
1
EXCELLENT QUALITY / WORTH THE MONEY*Easy fix
Pros
47
Easy To Install
37
Improves Engine Efficiency
29
Increases Power
23
Durable
9
Lightweight
Cons
1
No Improvement In Performance
1
Pricey / Poor Value
1
none
1
Price
Best Uses
38
Everyday Driving
35
Replacement
6
Performance Driving
3
Restoration
1
Auto erotic asphixiation
Car & Truck
4
Casual Driver
2
Auto Enthusiast
2
Mechanic
2
Truck Enthusiast
1
Luva
Describe Yourself
28
Casual Driver
12
Auto Enthusiast
11
Truck Enthusiast
4
Mechanic
1
Self Mechanic
Most Liked Positive Review
Easy fix
Took me about 10 minutes to install & after cleaning out the throttle, body my truck ran a lot smoother..way more power
Most Liked Negative Review
Standard OE wires
I bught the OE style AC Dalco wires due to the manufacturers ignotion coil requirements for a certain amount of resistance, unlike the cheaper Nickel core wire wrapped wires which do not offer nearly as much resistance. The AC Delco wires are a simpler design and probably much cheaper to manufacture than the nickel wire wrapped core of the Carquest brand, yet they are twice the price. Reverse logic?
Reviewed by 142 Customers
Outatanding product
Staff Reviewer -
The AC Delco 9748HH Wires fit perfectly in my 2003 GMC Yukon Denali. One thing you have to be careful about is that you don't purchase the 9748GG Wires. I have read that the GG wires are for a different coil system and are 2 inches shorter than the HH. Purchase the HH to be on the safe side.
Bottom Line Yes, I would recommend to a friend
Great stock replacement
Staff Reviewer -
Great stock replacement for the avalanche 5.3l engine. Easy to install existing shields and to install on the motor.
Bottom Line Yes, I would recommend to a friend
OEM Fit & quality
Staff Reviewer -
These are very good OEM replacements. Fit exactly as they should. One thing in doing this job, the old wires were VERY hard to get off in one piece. I had three come apart. This appears to not be uncommon. New wires though went on fine & work great.
Bottom Line Yes, I would recommend to a friend
Easy fix
Staff Reviewer -
Took me about 10 minutes to install & after cleaning out the throttle, body my truck ran a lot smoother..way more power
Bottom Line Yes, I would recommend to a friend
ACDeclo Spark Plug Wire Set
Staff Reviewer -
Used in a 2002 2500 Suburban - worked very well. My daughter is on a trip to Florida with the vehicle and she says it is performing very well just a week after installing.
Bottom Line Yes, I would recommend to a friend
Displaying Reviews 1 - 5Back to Top
Loading...
Loading...Loading...Loading...Loading...Loading...
No results
Loading...
Loading...Loading...Loading...Loading...Loading...
Feedback
Be The First To Know About Deals And Promotions.
Plus, create an account to receive $5 off of $20 or more.
TOP REPLACEMENT PARTS
Brake Pads & Shoes
Brake Rotors
Alternators
Water Pumps
Starters
Brake Calipers

Order Lookup

Help Desk

Store Locator

In Store Services

Mobile App

CUSTOMER SUPPORT
Accessibility Statement
Contact Us
Forgot Password
Help Desk
In Store Pickup
In Store Services
Order Tracking
Recall Information
Return Policy
Same Day Delivery
© 2026 Advance Auto Parts
Privacy Policy
Terms of Use
Site Map
ADVANCING A WORLD IN MOTION®