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Choose your Engine for your 1966 Pontiac Tempest

- Cyl -L 6 Cyl 3.8L 8 Cyl 5.3L

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1966 Pontiac Tempest Spark Plug 8 Cyl 5.3L NGK

NGK V-Power Spark Plug
Gap 0.035" OE Equivalent Design
V-Power Spark Plug
Product Attributes:
- Center Electrode Design: Standard
- Center Electrode Insulator Tip Projection:
  - 0.16
  - 4.0
- Washer Included: Yes
- Electrical Terminal Type: Non-removable Nut
- Grade Type: Standard Replacement
- Service Number: Xr4
- Washer Type: Crush
- Ground Electrode Tip Material: Nickel
- Short Style Spark Plug: No
- Skirt: No
- Center Electrode Core Material: Copper
- Part Number: Xr4
- Resistor Type: Yes
- Stock Number: 5858
- Ground Electrode Tip Design: Standard
- Pre-Gap Size:
  - .040
  - 1.0
- Ground Electrode Core Material: Nickel
- Material Grade: Nickel/copper
- Center Electrode Projection: Mid Projection
- Seat Type: Flat
- Ground Electrode Quantity: 1
- Insulator Material: Ceramic
- Hex Size: 13/16"
- Reach:
  - 0.375
  - 9.5
- Center Electrode Tip Material: Nickel
- Skirt Length: 0.0
- Manufacturer Heat Range: 4
- Ground Configuration: J-gap
- Resistance: 5000.0
- Insulator Height:
  - 2.24
  - 57.0
- Thread Diameter:
  - 0.551
  - 14.0
Features:
- NGK's OE CERAMIC TECHNOLOGY: High grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance
- RECOMMENDED USAGE: Best for vehicles with OE nickel alloy plugs, not recommended on vehicles with factory precious metal plugs
- COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
- SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
- TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
- ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction nickel alloy center electrode with V-groove provides consistent performance
NGK V-Power spark plugs offer reliable performance and improved ignitability over standard nickel plugs. Engineered specifically for OE applications, the special V-cut nickel alloy center electrode and concave ground electrode of NGK's V-Power spark plug increases ignitability providing quicker starts and smoother idle. NGK's legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance. Trivalent metal plating ensures superior anti-corrosion and anti-seizing properties.
Suggested Purchase Quantity: 8
- Most jobs typically require 8 of this item.
This item must be purchased in quantities of 4

This Part Fits the Following OEM/Substitute Numbers:

138, 1835288T, 4036, 4236, 437, 58, 5858, 58CC, 58S, 6020, 6021, 63, 63CC, 7516, 7519, 7520, 77, 7916...VIEW MORE

Additional Fitment Information:

Vehicle	Block	CC	Engine	CID
1966 - Pontiac Tempest	V	5343	8 Cyl 5.3L	326

52 In Stock

Limited-Time Offer

$10.05 USD

$12.06 USD


Brand	NGK
Part #	N125858
Condition	New
Warehouse	B

1966 Pontiac Tempest Spark Plug 6 Cyl 3.8L NGK

NGK Standard Spark Plug
Gap 0.035" OE Equivalent Design
Standard Spark Plug
Product Attributes:
- Center Electrode Design: Standard
- Center Electrode Insulator Tip Projection:
  - 0.04
  - 1.0
- Washer Included: Yes
- Electrical Terminal Type: Removable Nut
- Grade Type: Standard Replacement
- Service Number: Br6s
- Washer Type: Crush
- Ground Electrode Tip Material: Nickel
- Short Style Spark Plug: No
- Skirt: No
- Center Electrode Core Material: Copper
- Part Number: Br6s
- Resistor Type: Yes
- Stock Number: 3522
- Ground Electrode Tip Design: Standard
- Pre-Gap Size:
  - .028
  - 0.7
- Ground Electrode Core Material: Nickel
- Material Grade: Nickel/copper
- Center Electrode Projection: Non-projected
- Seat Type: Flat
- Ground Electrode Quantity: 1
- Insulator Material: Ceramic
- Hex Size: 13/16"
- Reach:
  - 0.375
  - 9.5
- Center Electrode Tip Material: Nickel
- Skirt Length: 0.0
- Manufacturer Heat Range: 6
- Ground Configuration: J-gap
- Resistance: 5000.0
- Insulator Height:
  - 2.15
  - 54.5
- Thread Diameter:
  - 0.551
  - 14.0
Features:
- COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
- SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
- TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
- ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction nickel alloy center electrode provides consistent performance
- NGK's OE CERAMIC TECHNOLOGY: High grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance
- RECOMMENDED USAGE: Best for vehicles with OE nickel alloy plugs, not recommended on vehicles with factory precious metal plugs
NGK Standard spark plugs (in the iconic NGK 'yellow box' packaging) are a proven OE cornerstone and technology customers have relied on for decades. Engineered specifically for OE applications, NGK Standard spark plugs provide OE quality nickel alloy reliable performance and design. NGK's legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance, while triple gasket sealing prevents combustion gas leakage. Solid 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges. Trivalent metal plating ensures superior anti-corrosion and anti-seizing properties.
Suggested Purchase Quantity: 8
- Most jobs typically require 8 of this item.
This item must be purchased in quantities of 10