0
items
Your cart is empty
Subtotal:$0.00
:
from
to
Clear
Clear
 |
ACDelco 748N - Spark Plug Wire Set
Product Overview
The ACDelco 748N Spark Plug Wire Set is designed to efficiently transfer high voltage pulses between your vehicle's voltage source, distributor, and spark plug. Manufactured to meet OE specifications, this spark plug wire set guarantees quality, reliability, and a perfect fit for your GM vehicle. As a GM-recommended replacement part, it ensures the same performance and durability you expect from General Motors vehicles. Choose ACDelco 748N for dependable performance and peace of mind every time you service your vehicle.
Cross Reference Numbers
This ACDelco 748N is equivalent to or replaces the following part numbers:
Vehicle Compatibility
- Cadillac Seville 1998-1999 4.6 V8
- Oldsmobile Aurora 1998-1999 4.0 V8
This also fits other applications. Please use the vehicle selector tool to verify fitment.
Why Choose Newparts.com?
- Trusted by DIYers and pros for over 15 years
- Over 20 million auto parts shipped
- Top brands at the best prices online
- Exclusive Kits That Fitâ„¢ - complete repair solutions with no guesswork
- Fast, reliable shipping from our U.S. warehouses
Frequently Asked Questions
What is the function of the ACDelco 748N Spark Plug Wire Set?
The ACDelco 748N Spark Plug Wire Set transfers high voltage pulses from the voltage source to the distributor and spark plugs, ensuring efficient engine performance.
How do I know if the ACDelco 748N will fit my vehicle?
Check the vehicle compatibility section above or use our vehicle selector tool to confirm fitment for your specific make and model.
What are common symptoms of a failing spark plug wire set?
Common symptoms include engine misfires, rough idling, and difficulty starting. If you experience these issues, consider replacing your spark plug wire set with the ACDelco 748N.
Are there any DTCs I should be aware of for spark plug wire issues?
Yes, if you experience issues with your spark plug wires, you may encounter DTCs such as P0300, P0301, P0302, which indicate engine misfires.
Why should I choose the ACDelco 748N over other brands?
The ACDelco 748N is manufactured to GM OE specifications, ensuring the same quality, reliability, and durability as the original components, making it a trusted choice for your vehicle.
Order ACDelco 748N today for a factory-correct replacement that restores safety and performance.
- BrandACDelco
- ManufacturerACDelco
- MPN748N
- FeaturesBoot Type : Solid
Coil End Boot Color : Black
Core Material : Fiberglass Reinforced Latex Graphite
Distributor Coil End Boot Type : Silicone Angled
Distributor Coil End Terminal Type : Snap Lock
Features & Benefits - Bullet 1 : Durable to help transfer high voltage pulses without damage
Features & Benefits - Bullet 2 : GM-recommended replacement part for your GM vehicle's original factory component
Features & Benefits - Bullet 3 : Offering the quality, reliability, and durability of GM OE
Features & Benefits - Bullet 4 : Manufactured to GM OE specification for fit, form, and function
Height (in) : 6
Insulation Color : Black
Insulation Material : Silicone
Insulation Outside Diameter : 0.27
Insulation Outside Diameter : 7
Length (in) : 44.3
Length (mm) : 1126
Noise Suppression Type : Yes
Outside Diameter : 7
Package Includes : 8 Wires
Product Description : ACDelco GM Original Equipment Spark Plug Wire Sets consist of a set of wires, encased in an insulating material, connectors, and insulating boots, and are GM-recommended replacements for your vehicle's original components. The wires transfer high voltage pulses between the voltage source, the distributor, and the spark plug. These original equipment wires have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors. ⚠ <bold>WARNING:</bold> Cancer and Reproductive Harm - <Underline>https://www.P65Warnings.ca.gov</Underline>
Programming Required : No
Spark Plug Boot Material : Silicone
Spark Plug End Boot Color : Black
Spark Plug End Boot Quantity Angled : 8
Spark Plug End Terminal Type : Snap Lock
Universal Or Specific Fit : Specific
Weight (lb) : 2.36
Width (in) : 10
Wire Separators Included : No - Part TypeSpark Plug Wire Set
- Fitment
- Fitment TypeVehicle Specific
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 1998 | Cadillac | Seville | SLS (4.6 V8 GAS) | Engine: LD8, VIN: Y, Notes: CONTAINS ALL 8 SPLG WIRES |
| 1998 | Cadillac | Seville | STS (4.6 V8 GAS) | Engine: L37, VIN: 9, Notes: CONTAINS ALL 8 SPLG WIRES |
| 1998 | Oldsmobile | Aurora | Base (4.0 V8 GAS) | VIN: C, Notes: CONTAINS ALL 8 SPLG WIRES |
| 1999 | Cadillac | Seville | SLS (4.6 V8 GAS) | Engine: LD8, VIN: Y, Notes: CONTAINS ALL 8 SPLG WIRES |
| 1999 | Cadillac | Seville | STS (4.6 V8 GAS) | Engine: L37, VIN: 9, Notes: CONTAINS ALL 8 SPLG WIRES |
| 1999 | Oldsmobile | Aurora | Base (4.0 V8 GAS) | VIN: C, Notes: CONTAINS ALL 8 SPLG WIRES |
Warranty Overview
At Newparts, we stand behind the quality of the products we sell. Every part we offer is backed by a warranty designed to give you peace of mind and protect your investment.
Standard Warranty – Most Parts
Coverage: 2 years or 24,000 miles (whichever comes first) from purchase date.
Protection: Defects in materials or workmanship under normal personal use.
Eligibility: Applies only to the original purchaser and the vehicle where the part was first installed.
Exclusions:
Wear-and-tear items (brake pads, filters, bulbs, wipers, etc.)
Commercial, fleet, rideshare, off-road, or racing use
Improper installation, misuse, accidents, or modifications
Not Covered: Labor, shipping, towing, or incidental costs.
Bison Performance Warranty – Our House Brand
Coverage: Limited Lifetime Warranty for as long as you own your vehicle.
Applies To: All products sold under the Bison Performance label.
Premium Protection: Goes beyond our standard warranty — if it’s a Bison product, the 2-year/24k mile limit is replaced with lifetime coverage.
Exclusions: Same as the standard warranty (normal wear, commercial use, improper installation, etc.).
What’s Included: Replacement of the defective product (labor and shipping excluded).
Warranty Claim Requirements
To keep claims fast and fair, we require:
Proof of purchase (invoice or order confirmation).
Photos or videos showing the defective part, order number, date, VIN, and odometer reading.
Diagnostic reports or part returns for non-visible issues may be requested.
Claims must be truthful, properly documented, and reflect normal consumer use.
Buy With Confidence: We back our products because we believe in their quality, with a transparent, customer-first warranty process you can trust. And with Bison Performance products, you’ll enjoy Limited Lifetime protection—an assurance few brands can match.
For full details and exclusions, please see our complete Warranty Terms & Conditions.
This summary is for convenience only. For full warranty coverage details, exclusions, and requirements, see our official Warranty Terms & Conditions. In case of conflict, the full policy governs.
Return Policy Overview
Most parts can be returned within 30 days of delivery if unused, uninstalled, and in original packaging.
To start a return, use our Return Portal or contact support.
Restocking fee: Up to 20% may apply for certain orders (buyer’s remorse, order errors, or special-order items)
Refunds: Issued to your original payment method within 3–5 business days after inspection
Exchanges: Not automatic — please return and reorder
Replacements: May be approved for incorrect or defective items reported within 7 days
Not returnable:
Used or installed parts
Electrical components
Opened filter kits, gaskets, or contaminated items
Final sale or custom orders
Important Notes:
Return shipping is your responsibility unless we made a verified error
Fitment is the customer’s responsibility (we can assist, but do not guarantee)
Country of origin may vary and is not grounds for return
For complete details, please see our full Return Policy.
This Returns summary is provided for convenience only. All returns, refunds, and exchanges are subject to the complete Returns Policy. In the event of any conflict, the full policy governs.
Fast, Reliable Shipping — Straight to Your Door
We ship most orders the same day when placed before 2 PM CST (Monday–Friday). Our main warehouse is just east of Nashville, TN, and we also ship from multiple locations nationwide to get your order to you as quickly as possible.
We use trusted carriers like UPS, FedEx, and USPS.
Tracking info is emailed to you as soon as your order ships.
Delivery estimates at checkout are based on carrier data, but not guaranteed.
Need help with a shipment?
If your order is missing, damaged, or incorrect, just let us know within 5 days of delivery. We’ll walk you through the quick claim process — including a few photos to help us make things right.
For full details, please see our complete Shipping Policy.
This Shipping summary is provided for convenience only. Delivery times, carrier terms, fees, restrictions, risk of loss, and other details are governed by our complete Shipping Policy. In the event of any conflict, the full policy governs.
