HomeIgnition > Ignition Wire and Related ComponentsDenso 671-4261 Spark Plug Wire Set
Part #: 671-4261

Denso 671-4261 Spark Plug Wire Set

7mm
⚙️ 3 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$50.19Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦7mm
🚗Fitment: Subaru, Legacy
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Spark Plug Wire Set for Subaru Legacy

The Denso 7mm Spark Plug Wire Set (Part Number 671-4261) is designed specifically for Subaru Legacy models, ensuring precise fitment and optimal ignition performance. Engineered with quality materials, this set supports consistent spark delivery for smooth engine operation.

Key Features of the Denso 7mm Spark Plug Wire Set

  • Spark plug boot material constructed from durable Sil PBT Sil for heat resistance and longevity
  • 7.00 mm insulation outside diameter for effective electrical insulation
  • Female distributor coil end terminal type for secure connection
  • Female spark plug end terminal type with a 135-degree angled boot for improved installation in tight engine spaces
  • Includes four angled spark plug end boots to match Subaru Legacy ignition system requirements

About the Denso 7mm Product Line

The Denso 7mm line focuses on ignition wire sets with a 7.00 mm insulation diameter, balancing flexibility and durability. This product line is engineered to meet the specific electrical and mechanical demands of modern ignition systems, providing reliable spark transmission and resistance to heat and wear. The 7mm wires are suitable for vehicles like the Subaru Legacy, where precise fit and performance are critical.

Detailed Product Description

This spark plug wire set features Sil PBT Sil boot material, known for its resistance to high temperatures and chemical exposure, which helps maintain connection integrity over time. The female terminal types on both the distributor coil end and spark plug end ensure a secure and stable connection, reducing the risk of misfires. The 135-degree angled spark plug end boots facilitate easier routing and installation in the Subaru Legacy’s engine bay, accommodating tight spaces without compromising wire integrity.

Common Applications and Issues Addressed

  • Replacement of worn or damaged spark plug wires in Subaru Legacy vehicles
  • Resolving engine misfires caused by poor spark wire connections
  • Improving ignition system reliability and engine performance
  • Reducing electrical interference and voltage loss in ignition circuits
  • Addressing heat-related wire degradation in the engine compartment

Installation Notes and Tips

  • Ensure the engine is cool before beginning installation to avoid burns
  • Match each wire to its corresponding spark plug and distributor coil terminal to maintain firing order
  • Use the 135-degree angled boots to navigate tight spaces without bending wires excessively
  • Inspect terminals for corrosion or damage before installation
  • Secure wires away from moving parts and heat sources to prolong lifespan

Quality Assurance and Warranty

Denso manufactures this spark plug wire set to meet OEM specifications for Subaru Legacy vehicles. The use of high-quality Sil PBT Sil materials and precise terminal design supports durability and consistent performance. While specific warranty details are not provided here, Denso products typically come with manufacturer-backed quality assurance to ensure reliability in automotive ignition applications.

BrandDenso
Part Number671-4261
Position7mm
Bushing Material4
Distributor Coil End Terminal TypeFemale
Insulation Outside Diameter7.00
Spark Plug Boot MaterialSil PBT Sil
Spark Plug End Boot Degree135
Spark Plug End Terminal TypeFEMALE

This part fits 3 vehicles. Search below:

YearMakeModelPositionNotes
1999SubaruLegacyN/A7mm
1998SubaruLegacyN/A7mm
1997SubaruLegacyN/AFrom 5/97; 7mm

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

964K

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.