Moroso 62160 Spark Plug Washer Indexing Nut Indexer Tool, 14mm
High-compression race engines require “indexing” of spark plugs to prevent contact between the piston dome and ground wire of the spark plugs. Moroso’s indexer, designed for both flat and taper-seat 14mm spark plugs, enables selection of spark plugs that will not make such contact. Once a given plug is selected (placed in a cylinder head and found to have the correct ground wire position), it is placed in the Moroso Plug Indexer and the position of the ground electrode marked on the black anodized surface. Marking provides a reference for checking other plugs to be used in the same cylinder.
- Designed for both flat and tapered seat 14mm spark plugs
- Black anodized for easy marking
- Hex-head design allows it to be held in a vise
- Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
Q & A
Pat talks about our red solid core spark plug wire and rajah ends.
Learn about some of the differences between factory plug wires and the improvements you'll receive with a quality set of aftermarket performance wires.
Looking for an easy performance upgrade to your ignition system? MSD's line of Ignition Control Boxes offer extreme improvements to drivability and high rpm applications. Here's a look at the differences between the 6 series line-up.
Follow along as our expert goes through his process for replacing the steel wire covers on his 1954 Dodge 241 with a set of Offenhauser Finned Wire Covers.
In preparation to transplant a 430hp 383 stroker into Project Chevelle, Zach R. made up a set of plug wires for the car. To keep it nice and tidy they needed to be routed just right, be the perfect length and not distract from the engine!
Learn how to install spark plug wire ends. Our step by step guide takes you through terminal end and boot installation with the use of a wire stripper tool.
Spark Plug Cross Reference Guide