US

ACCEL 0416S-4 Shorty Copper Core Spark Plug

  • Pack of 4 shorty copper core plugs
  • 14mm thread, universal fit, listed for UTVs
  • 3/16 to 3/8 inch shorter than standard, depending on application
  • Alloy steel top, purified alumina insulator
  • 90 day warranty

Updated 2 days ago · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A set of four shortened copper core plugs for tight engine bays and UTV use. The listing gives no heat range or gap.

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ASIN: B007RVTBG4Model: 0416S-4Category: Spark Plugs

Overview

Clearance between the plug boot and a header or manifold is the aim of this shorty length. The ground electrode design exposes the center electrode so the flame can spread more freely.

Extra clearance helps stop boots burning and header tubes denting, and the shorter body is easier to fit in cramped spots. The listing leaves out reach, gap and heat range, which decide whether the plug suits your engine.

Who it's for

Builders and UTV owners fighting a tight header clearance can use the shorty length. Buyers who need a plug matched to a factory part number should verify before use.

Pros and cons

Pros
  • Shorter body for clearance
  • Copper core conducts heat well
  • Machine rolled threads protect heads
  • Four plugs supplied
Cons
  • Heat range not listed
  • Gap not listed
  • Short ninety day warranty

Performance notes

A conventional ground electrode that unshrouds the center electrode lets the flame kernel expand quickly. The purified alumina insulator resists arcing, and the copper core carries heat away from the tip.

Specifications

Model0416S-4
Dimensions & fit
Thread size14mm
Weight3.2 ounces
Construction & materials
Core materialCopper
Top materialAlloy steel
Compatibility & installation
Vehicle typeUTV
Warranty & support
Warranty90 days
Other details
Number of items4
Fit typeUniversal fit

Frequently asked questions

Do the ACCEL 0416S-4 plugs fit my engine?

The listing says universal fit with a 14mm thread and lists UTV as the vehicle type. It gives no reach, gap or heat range, so check your engine's requirement.

How much shorter are shorty plugs?

The description says 3/16 inch to 3/8 inch shorter, depending on the application.

How many plugs come in the pack?

Four.