My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

NGK 3351 GR5GP G-Power Platinum Spark Plug 14mm Heat Range 5

(Chevrolet Camaro 1967-70, Corvette 1966-69, S10 1982-85, Impala 1961-69, Malibu 1966-67, Chevelle 1966-69, C10 Pickup 1968-69, Caprice 1966-69 + 62 more models)

Manufacturer

Picture for manufacturer NGK Spark Plugs

Part Number

3351
5 reviews
Sale Price

$5.30

In Stock (10+)

delivery box

Usually delivered within 2 days

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The NGK 3351 (GR5GP) G-Power Platinum spark plug is a resistor spark plug that offers platinum performance at a competitive price. Its fine wire platinum-tipped center electrode reduces required voltage for better starts, superior acceleration and increased fuel economy. It also works as an upgrade over standard nickel alloy plugs.

Key Features:

  • Fine wire platinum center electrode (0.6mm)
  • Trapezoid cut ground electrode reduces quenching
  • Trivalent metal plating gives superior anti-corrosion and anti-seizing properties
  • Copper core aids in heat removal
  • Corrugated ribs prevent flashover, and triple seals prevent leakage
  • Cold-rolled threads help prevent cross-threading and damage to cylinder heads

Specifications:

  • Manufacturer part number: GR5GP (NGK stock number 3351)
  • Thread diameter 14mm, thread pitch 1.25mm
  • Gasket seat, reach 19mm (3/4")
  • Hex size 13/16" (21mm)
  • Pre-set gap 0.039" (1.0mm)
  • Heat range 5, resistor type, 5k ohm resistance
  • Projected center electrode, platinum tip, copper core
  • Torque: cast iron heads 18-25.3 lb-ft; aluminum heads 18-21.6 lb-ft

NGK is a long-time original equipment supplier of spark plugs. The G-Power Platinum line suits drivers who want longer service life and more consistent ignition than a conventional nickel plug gives.

Products specifications

Fits

Chevrolet Camaro 1967-70, Corvette 1966-69, S10 1982-85, Impala 1961-69, Malibu 1966-67, Chevelle 1966-69, C10 Pickup 1968-69, Caprice 1966-69, C10 1968-69, El Camino 1966-70, Nova 1970, K10 Pickup 1968-69, C20 Pickup 1968-69 + 57 more models

Stock Number

3351

Part Number

GR5GP

Center Electrode Tip Material

Platinum

Electrical Terminal Type

Non-Removable Nut

Ground Electrode Core Material

Nickel

Hex Size

13/16

Seat Type

FLAT

Manufacturer Heat Range

5

Ground Electrode Quantity

1

Ground Electrode Tip Design

Trapezoid

Ground Configuration

Standard

Pre-Gap Size

.040

Center Electrode Core Material

Copper

Reach

.75

Insulator Height

55.00

Thread Diameter

14.00

Resistance

5000

Best price by far! Fast shipping!

"Excellent price and great customer service. Order was shipped promptly!! Would do business with them again. "

Item price, availability & shipping price all seem good... So far...

Item just as descibed, great price and fast shipping. This has been my first order and actually first time searching for an auto part on this site and all went as expected. Glad I saw reference to it a car forum.

Good price, fast shipping. Will buy again

Share icon
Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy