Mercury Comet Engine Additives

Your One-Stop Shop For Trusted Mercury Comet Engine Additives

If you’re in search of Mercury Comet Engine Additives aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 3 Engine Additives from top brands with prices ranging from $17.99 to $931.99.

Beyond great prices, we stock trusted brands manufacturing all types of Engine Additives for your Mercury Comet. Of the 2 OEM and aftermarket parts brands we carry, some of the most popular are Powertrax and Yukon Gear.

And don’t forget to read customer reviews across all Engine Additives categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Engine Additives have to cost top dollar, and we prove it. Browse our top Mercury Comet Engine Additives below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

Essential Mercury Comet Engine Additives

Powertrax – Grip PRO Traction System (Part No.GT108028)

Grip PRO Traction System

from

$537.99
For vehicles that are driven daily, the Powertrax No-Slip Traction System is the latest design in quiet traction-adding differential technology. It combines the automatic street-friendly smooth operation of a limited-slip differential with the traction performance of a locking differential. The Powertrax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds!
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Yukon Gear – Grizzly Locker For Ford 8" With 28 Spline Axles (Part No.28006)

Grizzly Locker For Ford 8" With 28 Spline Axles

from

$931.99
The Yukon Grizzly Locker is the ultimate in locking differentials for street, off-road, & drag racing. Grizzly Lockers provide 100% power to both tires, while still allowing for disengagement while negotiating turns. The Yukon Grizzly locker is a mechanical locking differential. It features a forged case and 8620 internals for maximum strength. It’s patented design reduces common locker failures. All units assembled in the USA! All Grizzly Lockers are backed by the best warranty in the business! Yukon covers the replacement unit and covers any collaterally damaged parts and associated labor, up to $2,000!

Product Features:
  • Fits Ford 8″ with 28 spline axles
  • Patented internal design reduces common locker failures
  • 8620 internals for added strength
  • Assembled in the USA
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Yukon Gear – Friction Modifier / Posi Additive (Part No.15018)

Friction Modifier / Posi Additive

from

$17.99
Help keep positraction chatter down with posi additive from Yukon Gear & Axle.

Product Features:
  • positraction additive
  • For use in any clutch-style limited slip
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Engine Additives Brands You Can Trust For Your Mercury Comet

2 trusted brands of Engine Additives line our shelves, ready to help keep your Mercury Comet running smooth. Below are some of the most popular brands and their top Engine Additives offerings:

Most Purchased Mercury Comet Engine Additives from Yukon Gear

When you buy the most frequently purchased Yukon Gear brand Engine Additives, you can be confident it will be the right part for your Mercury Comet. Here are the Yukon Gear Engine Additives Advanced Auto customers buy the most:
Friction Modifier / Posi Additive
from $17.99
This product is not rated
Friction Modifier / Posi Additive
Friction Modifier
Grizzly Locker For Ford 8" With 28 Spline Axles
from $931.99
This product is not rated
Grizzly Locker For Ford 8" With 28 Spline Axles
Posi Units and Components
Grip PRO Traction System
from $537.99
This product is not rated
Grip PRO Traction System
Posi Units and Components