Your Cart

Champion 304 RS9YC Copper Plus Spark Plug 4-Pack

Manufacturer

Champion

Picture for manufacturer Champion

Part Number

304
14 reviews
04/03/2036 5:33 AM
Sale Price

$3.58

In Stock (10+)

delivery box

Usually delivered within 2 days

Select Your Vehicle:

Add To Cart

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 Champion 304 RS9YC is a conventional spark plug featuring nickel alloy electrodes and a copper core center electrode that provides increased conductivity and heat control for good overall wear. The extruded copper core in the center electrode maintains accurate control of heat range, optimizing the performance and longevity of the spark plug.

Key Specifications:

  • Thread Size: 14mm (9/16") with 1.25mm (1/16") pitch
  • Seat Type: Tapered
  • Reach: 0.689" (17.5mm)
  • Hex Size: 5/8" (16mm)
  • Gap: 0.035" (0.9mm)
  • Terminal Type: Removable Nut
  • Resistor Type: SAC-9
  • Heat Range: 9

Performance Features:

  • Patented SAC-9 semi-conductor resistor for maximum EMI & RFI suppression
  • Built to ISO and SAE standards for proven performance
  • TinTac and ULTRASEAL shell for best corrosion protection
  • 20,000 mile longevity rating

Installation torque: 7-15 lb-ft for cast iron or aluminum heads. This spark plug fits Indmar, Marine Power, Mercury Marine, OMC, Pleasurecraft Marine, and Volvo Penta engines. Replaces OEM part number 3851869.

Products specifications

Manufacturer Part Number

304

Model Number

RS9YC

painless

I wish I could find the 30 series tire for the front of my mustang .. but I don't see that you sell them ?

Found on Android phone search and they had the item in stock when several others didn't. Immediate shipping and competitive pricing too.

Great price,fast delivery and great customer service

Just ordered first time . so far so good

Competitive pricing and fast shipping

As advertised

easy to understand

All seems great. Had item in stock as on there website and it was shipped quickly.

I received my Borgeson steering shaft today for my 1990 dodge 1st gen. This is where I found the lowest price for the product. I was also very pleased in the speedy delivery. I will definitely use this company again.

Really impressed with speedy order to customer service,also some of the best savings online.Ordered parts late Monday, got the parts wednesday afternoon, combined savings of about $20.00 over nearest low price online. Thanks for the savings, will be ordering from you soon.

Autoplicity was quick, and fast! the shipping was standard but arrived in five days! I would definetly recommend them!

Best price I found on Weathertech digifit floor mats for my 2012 F150 Supercrew. Product was as described and shipping was fast too.

Cheapest around, excellent shipping, easy to use website! ill be back!!!

Share icon
Return Policy
Returns are easy at Boatplicity

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