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DENSO 3173 Double Platinum Spark Plug

(Ford Mustang 1967-68; Subaru Impreza 2012-14; Nissan Sentra 1991-94; Acura TLX 2021-23; Mazda Protege 2002-03, 626 1998-2002, Millenia 1995-2002 + 5 more models)

Part of: DENSO Double Platinum Spark Plug

Other options in this family: DENSO 3141 DENSO 3128 DENSO 3246 DENSO 3245 DENSO 5092

Manufacturer

Picture for manufacturer DENSO

Part Number

3173
7 reviews
Sale Price

$10.36

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The DENSO 3173 Double Platinum Spark Plug delivers exceptional ignition performance and extended service life for gasoline fuel-injected engines. This premium spark plug features platinum on both the center electrode and ground strap, providing superior durability and resistance to erosion in the harshest operating conditions.

Key Features:

  • Double platinum design with platinum center electrode and platinum ground strap for maximum longevity
  • 360-degree laser welding assembly ensures structural integrity and prevents premature failure
  • Pre-gapped to 0.032 inches for optimal spark performance
  • Service life exceeding 60,000 miles under normal operating conditions
  • Low required firing voltage reduces strain on ignition system components
  • Minimized spark gap growth throughout the plug's service life
  • Manufactured to strict OE performance, durability, and emissions standards

DENSO's double platinum construction resists corrosion and delivers sustained spark performance, improving fuel efficiency and reducing misfires. The advanced design maintains consistent ignitability while minimizing electrode erosion, ensuring reliable engine starting and smooth operation. Cross-references OEM part numbers including Autolite AP5224, NGK 3271, and various Mazda part numbers (0000-18-KJ11, KJ11-18-110, KJ12-18-110, KJ17-18-110, KJ18-18-110). Also known by DENSO OE part number PKJ20CR8.

Products specifications

Fits

Ford Mustang 1967-68; Subaru Impreza 2012-14; Nissan Sentra 1991-94; Acura TLX 2021-23; Mazda Protege 2002-03, 626 1998-2002, Millenia 1995-2002; Dodge Caliber 2008-09; Oldsmobile Cutlass Calais 1988, Calais 1985-87 + 2 more models

Center Electrode Tip Material

Platinum

Manufacturer Heat Range

20

Ground Electrode Core Material

Nickel

Seat Type

FLAT

Pre-Gap Size

0.8

Ground Electrode Quantity

1

Ground Configuration

Standard

Center Electrode Core Material

Copper

Thread Diameter

14.00

Resistance

5000

Ground Electrode Tip Design

Platinum Chip

Reach

19.00

Hex Size

16.0

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