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DENSO 4012 U-Groove Spark Plug

(1968 Chevrolet Corvair)

Part of: DENSO U-Groove Spark Plug

Other options in this family: DENSO 3381 DENSO 12-12-9-065-004 DENSO 4085 DENSO 3120 DENSO 3051

Manufacturer

Picture for manufacturer DENSO

Part Number

4012
8 reviews
Sale Price

$3.25

In Stock (8)

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Usually delivered within 2 days

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Product Details

The DENSO 4012 is a standard copper core spark plug designed to deliver reliable ignition performance for a wide range of vehicles. This spark plug features DENSO's proven U-Groove ground electrode design that promotes better ignitability and more complete fuel combustion for improved engine efficiency.

Key Features:

  • U-Groove ground electrode design improves spark exposure to the air-fuel mixture
  • Copper core center electrode provides excellent heat dissipation
  • Standard resistor design suppresses electromagnetic interference
  • 14mm thread diameter with gasket seat
  • Reliable cold-start performance and smooth acceleration

DENSO spark plugs are manufactured to strict OEM quality standards, providing dependable ignition performance and long service life. The U-Groove design increases flame kernel growth for more efficient combustion, which can improve fuel economy and reduce emissions.

Products specifications

Fits

1968 Chevrolet Corvair

Pre-Gap Size

0.7

Ground Electrode Core Material

Nickel

Seat Type

FLAT

Center Electrode Tip Material

Nickel

Ground Electrode Quantity

1

Manufacturer Heat Range

14

Ground Configuration

Standard

Center Electrode Core Material

Copper

Thread Diameter

14.00

Ground Electrode Tip Design

U-Groove

Reach

12.70

Hex Size

20.6

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