Delphi XS10250 Spark Plug Wire Set

Brand Delphi XS10250
Composite High Temp Composite High Temperature
Package Contents Spark Plug Wire Set, Instruction Sheet
Fits Chevrolet and GMC · 10 vehicles

OE heritage. Built with a century of original-equipment experience.

High-temp composite. Engineered to handle demanding ignition heat.

Spark plug wire set. A direct ignition replacement for dependable spark delivery.

Cross-references AP Exhaust 7443, Dayco 86056 and Four Seasons 86054 for the same application. See all 22.

$39.76Free shipping
Out of stock
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $39.76
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Delphi XS10250 Spark Plug Wire Set

Delphi XS10250 is a spark plug wire set built with composite high-temperature materials and OE-based engineering knowledge. It is a direct-fit ignition wire replacement for select Chevrolet S10, S10 Blazer, GMC S15, S15 Jimmy, and Sonoma applications from 1988-1991.

Key Features

  • Composite high-temperature construction for ignition wire durability in elevated heat conditions
  • OE heritage and supplier experience built into the aftermarket design
  • Made for ignition system service on select Chevrolet and GMC trucks and SUVs
  • Package contents include a spark plug wire set and instruction sheet
  • Delphi XS10250 is a fitment-specific replacement for listed applications

Product Details

Delphi draws on 100 years of OE experience and supplier knowledge used by top automakers to produce aftermarket ignition components with application-specific fitment. This spark plug wire set is engineered for vehicles that need reliable spark delivery across the ignition system, with composite high-temperature material helping the wires withstand underhood heat. For buyers searching for a spark plug wire set for 1988-1991 Chevrolet S10 or 1991 GMC Sonoma, Delphi XS10250 provides a direct replacement option backed by OE-focused design.

This part cross-references Dayco 86056 and Wix 51214 for the same application.

What It Helps Fix

  • Misfires caused by worn or heat-damaged ignition wires
  • Rough idle related to inconsistent spark delivery
  • Hard starting from degraded wire insulation or internal resistance issues
  • Engine hesitation under load in older ignition systems
  • Ignition performance loss on Chevrolet S10, S10 Blazer, GMC S15, S15 Jimmy, and Sonoma models

Installation Notes and Tips

Verify the vehicle year and model before installation. Route each wire to match the original layout and keep the wires separated from hot or moving components. Use the included instruction sheet during installation and confirm each connection is fully seated at the distributor and spark plug ends. For best results, inspect related ignition components at the same time.

Quality Assurance

Delphi builds this ignition wire set using OE experience and supplier knowledge developed through work with major automakers. The XS10250 is intended as a fitment-specific aftermarket replacement for the listed Chevrolet and GMC applications.

This part fits 10 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelPositionNotes
1991ChevroletS10BaseN/A
1991GMCSonomaN/A
1990ChevroletS10N/A
1990GMCS15N/A
1989ChevroletS10N/A
1989GMCS15N/A
1988ChevroletS10N/A
1988ChevroletS10 BlazerN/A
1988GMCS15N/A
1988GMCS15 JimmyN/A
Directly replaces or cross-references 22 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AP Exhaust — 7443Dayco — 86056Four Seasons — 86054Unity Automotive — 51261Unity Automotive — 51331Wix — 512142X118535-PF77525671-4036714E093049714E512351207399019172240CH7413CH7413SPQW901RC-GMX020RC-GMX021RC-GMX044RC-GMZ031