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1205 E Main St
Columbus, OH 43205
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Autolite Copper Spark Plug: Delivers Quick Starts, Good Fuel Economy, Smooth Acceleration

Part # 308
2 yr replacement if defective
$3.49
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$8.99

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Zip Code: 43205

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Product Information

Product Details
Part No. 308
Warranty Details (2 YR REPLACEMENT IF DEFECTIVE)
Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, Autolite Double Platinum spark plugs feature platinum-to-platinum firing which virtually eliminates gap erosion, reduces misfires and increases durability of the plug. Consider upgrading to Autolite Iridium XP spark plugs for increased performance.

Product Features:
  • Copper-glass seal bonds insulator, terminal post center electrode together; assures full required voltage at spark gap; gas-tight seal (100% leak proof)
  • Multi-rib insulator reduces danger of "flash-over"
  • One-piece terminal post adds strength
  • Resistor reduces radio frequency interference (RFI) and electrode erosion
Specifications
Center Electrode Core Material:
Copper

Center Electrode Tip Material:
Nickel

Electrical Terminal Type:
Removable Nut

Ground Electrode Core Material:
Nickel

Ground Electrode Quantity:
1

Ground Electrode Tip Design:
Tapered

Ground Electrode Tip Material:
Nickel

Hex Size:
13/16" in

Pre-Gap Size:
0.034 in

Reach:
9.5 mm

Resistance:
5000

Resistor Type:
Yes

Seat Type:
Flat

Thread Diameter:
14 mm

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I recently bought an old Cub Cadet (about 1985 model year or around there so it's a real Cub) model 1605 lawn tractor. It has a Briggs and Stratton 16 horsepower I/C II plus engine. It had Autolite 308 plugs in it but I'd like to change them to Champion or E3. I need to know what part numbers cross reference from those part lines with the Autolite 308.
Verified Reply - John the Car-Doc
I'm happy to help, Mike! I did some research on the exact cross reference for the Autolite 308 and was able to locate the E3.52, unfortunately I do not see a cross reference in Champion spark plugs that we have available. Here is the link for the E3.52 - E3 Premium DiamondFIRE Electrode Automotive Spark Plug - Part No. E3.52 http://shop.advanceautoparts.com/webapp/wcs/stores/servlet/product_premium-diamondfire-electrode-automotive-spark-plug-e3_19650222-p?

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