Delphi XS10257 Spark Plug Wire Set
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Delphi

Delphi XS10257 Spark Plug Wire Set

Brand Delphi XS10257
Composite High Temp Composite High Temperature
Package Contents Spark Plug Wire Set, Instruction Sheet
Fits Buick, Cadillac, and Chevrolet · 5 vehicles

OE experience. Built on a century of OE knowledge for aftermarket ignition parts.

High-temp composite. Materials are made to handle demanding ignition conditions.

Spark plug wire set. A complete ignition wire set with instruction sheet included.

Cross-references ACI 86847, Carlson 7864 and NGK 51059 for the same application. See all 20.

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Delphi XS10257 Spark Plug Wire Set

Delphi XS10257 is a spark plug wire set built for ignition service on select 1996 Buick, Cadillac, and Chevrolet applications. It combines Delphi’s OE heritage with composite high-temperature construction to support reliable spark delivery in demanding underhood conditions.

Key Features

  • Composite high-temperature construction for heat resistance in the ignition system
  • OE-informed design backed by Delphi’s 100 years of original equipment experience
  • Built for direct replacement service on select GM vehicles
  • Includes spark plug wire set and instruction sheet
  • Part number XS10257 for easy identification and ordering

Detailed Description

Delphi XS10257 spark plug wire set is engineered for ignition wire replacement on 1996 Buick Roadmaster, 1996 Cadillac Commercial Chassis, 1996 Cadillac Fleetwood, 1996 Chevrolet Caprice, and 1996 Chevrolet Impala. Delphi draws on supplier experience with major automakers to produce aftermarket ignition components that reflect OE knowledge and fitment expectations. If you are searching for a spark plug wire set for a 1996 Chevrolet Impala or a 1996 Buick Roadmaster, XS10257 is a direct-fit service part to consider.

This part cross-references NGK 51059 and 51109 for the same application.

What It Helps Address

  • Misfires caused by worn or heat-damaged plug wires
  • Hard starting related to weak spark transfer
  • Rough idle from deteriorated ignition wire insulation
  • Intermittent ignition performance under high-temperature conditions
  • Service replacement needs on aging GM ignition systems

Installation Notes and Tips

Verify wire routing against the instruction sheet before installation and match each lead to the correct cylinder location. Inspect related ignition components, including spark plugs and distributor-related parts where applicable, so the new wire set is installed into a clean, serviceable ignition system. Confirm vehicle application by year, make, and model before ordering.

Quality Assurance

Delphi builds aftermarket parts using OE experience and supplier knowledge developed over a century of original equipment service. XS10257 reflects that background with composite high-temperature construction for ignition service on select 1996 Buick, Cadillac, and Chevrolet models.

Related reading

This part fits 5 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1996BuickRoadmasterN/A—
1996CadillacCommercial ChassisN/A—
1996CadillacFleetwoodN/A—
1996ChevroletCapriceN/A—
1996ChevroletImpalaN/A—
Directly replaces or cross-references 20 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACI — 86847Carlson — 7864NGK — 51059NGK — 511092X111511-880M35-PF838748B097329748B738641180467007851217356819171855CH7864CH7864SPQW1116RC-GMX049RC-GMX075