NGK 54221 Spark Plug Wire Set
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 NGK Spark Plug Wire Set

NGK 54221 Spark Plug Wire Set

Brand NGK 54221
Insulation Color Blue
Insulation Material Silicone
Noise Suppression Type Yes
Core Material Tinned copper
Universal Or Specific Fit Specific
Insulation Outside Diameter 7.00
Part Number Rc-euc007
Stock Number 54221
Product line NGK Spark Plug Wire Set
Fits BMW · 2 vehicles

Specific-fit design. Built for targeted ignition wire replacement applications.

Silicone insulation. Helps resist heat and maintain wire durability.

Noise suppression. Supports cleaner ignition signal performance.

Cross-references Anchor 9508, Anchor 9655 and AP Exhaust 54221 for the same application. See all 13.

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NGK Spark Plug Wire Set 54221

NGK Spark Plug Wire Set 54221 is a specific-fit ignition wire set built for direct replacement applications. It uses silicone insulation and a tinned copper core, with noise suppression built in to help maintain stable ignition performance.

Key Features

  • Specific-fit spark plug wire set for targeted applications
  • Silicone insulation for heat resistance and durability
  • Tinned copper core for consistent electrical transfer
  • Noise suppression type included for cleaner ignition signal
  • Blue insulation for easy visual identification

Detailed Description

NGK 54221 is part of the NGK Spark Plug Wire Set line, a product family backed by the brand’s long history in ignition components. NGK focuses on OE-level replacement parts, and this wire set reflects that approach with a specific-fit design and materials selected for dependable ignition service. For buyers searching for a BMW 325i spark plug wire set or a BMW 325is ignition wire replacement, this part number 54221 matches the listed application data.

The combination of silicone insulation and a tinned copper core supports stable spark delivery while helping reduce electrical noise. That makes this NGK spark plug wire set 54221 a practical choice for restoring ignition performance on the listed BMW applications.

What It Is Used For

  • Replacing worn or damaged ignition wires
  • Restoring consistent spark delivery
  • Addressing ignition noise or interference concerns
  • Correcting misfire symptoms caused by degraded wire insulation

Installation Notes and Tips

Verify connector routing and terminal engagement before installation. Match the wire set to the exact application listed for your vehicle, and inspect related ignition components for wear before completing the job. This part is listed for 1987 BMW 325i and 1987 BMW 325is applications.

Quality Assurance

NGK is an established ignition brand with extensive OE experience and a broad replacement parts lineup. Part number 54221 is manufactured to meet OE standards for durability and operational performance.

Related reading

This part fits 2 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
1987BMW325i2.5LL6NGK Spark Plug Wire Set
1987BMW325is2.5LL6NGK Spark Plug Wire Set
Directly replaces or cross-references 13 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Anchor — 9508Anchor — 9655AP Exhaust — 54221Dorman - HELP — 96483Focus Auto Parts — 86483Four Seasons — 55711TYC — 70035835-6013175-591809508127635146008CH7635