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Use promotional code MMJ25 at checkout to receive 25% off the following categories: Select Brake Parts, Select Hi-Performance and Truck Accessories, Batteries, Water Pumps, Belts, A/C Parts, Starters, Alternators, Fuel Pumps, Radiators, Radiator Fans, Thermostats, Caps & Clamps, Clutches, Spark Plugs, Plug Wires, Chassis, CV Axles, Batteries, Battery Chargers & Booster Cables, OE Locks, Rack & Pinons, Window Motors, RainX Wipers, Appearance Chemicals, Car Wash Accessories, Floor Mats, Lift Equipment, Hand Tools, Travel Accessories, Outdoor Lifestyle, Towing, Car Covers, Seat Covers, Wheel Covers, Body Repair, Collectibles and Apparel.

Use promotional code MMJ20 at checkout to receive 20% off the following categories: Ignition, Air Filters, Oil Filters, Bearings & Seals and Engine Parts.

Offers not valid in combination with any other discounts, promotions or items already on sale. Not valid on gift cards, special orders, installed merchandise, commercial or fleet purchases. Those products that are included in these offers will be displayed in product search results and product detail pages. Excludes the following brands: Champion, Powerstop, Razor, Traxxas, Superchips, Hypertech, Edge, Bully Dog, Diablo, Edelbrock, Holley, NOS, Proform, Specialty Auto, Autometer, Accel, K&N, Kenwood, Pioneer, Sony, Thule, Thule Karrite, JVC, Flowmaster, Hurst, B&M, MSD, Moog, Wagner, Philips and BBK Performance. Valid online until 11:59 PM EST on 9/24/17.

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Actron Compression Tester Kit 1125483
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  • Part #: CP7827|
  • SKU: 1125483

Available today

Pay in Store Available

    • Measures cylinder compression to accurately diagnose engine condition.
    • Tester has 14" high pressure flexible oil and grease resistant hose.

Actron Compression Tester Kit

This compression tester measure cylinder compression to accurately diagnose engine problems like leaks from ring and valves. It allows you to measure pressure within the combustion chamber as the piston comes up on the compression stroke. A push-button side release valve is included which allowas repeated testing without disconnecting. This unit has a 1 year warranty.
  • Measures cylinder compression to accurately diagnose engine condition.
  • Tester has 14" high pressure flexible oil and grease resistant hose.
  • Compression tester has external pressure relief valve.
  • 14mm and 18mm ends fit most spark plug openings.


Actron Compression Tester Kit is rated 4.3 out of 5 by 4.
Rated 5 out of 5 by from Parts I have a 1977 buick skylark and it's hard to find parts for but so far pep boy has had everything I need or they where able to get the part .online orders are great and the prices you can beet
Date published: 2016-12-21
Rated 5 out of 5 by from Easy compression tester Easy to read, easy to use Actron compression tester showed stable and consistent readings during dry and wet testing. If you don't need a lot of fancy adaptors this is a great cost effective kit. I liked getting a discount by ordering the item online and using in store pickup.
Date published: 2016-10-28
Rated 3 out of 5 by from Decent product for the price I bought this product at a time when I didn't have the luxury of ordering a higher-end brand online. It's served its purpose and is a good "bang for the buck" compression tester. A must-have for the home garage. I probably wouldn't have this in my toolbox, unless as a back-up, if I were a career mechanic, but for the light duty and light use of my needs, it's ideal.
Date published: 2016-10-07
Rated 4 out of 5 by from Works good Had to replace 1st gauge within a week of purchase. Gauge stopped going to 0 and stayed bottomed at 30 instead. Black relief cover fell off within the 1st day. Also lost accuracy. 2nd gauge lost the black relief cover also within a few days. Holding up better so far. Still accurate.
Date published: 2014-10-21
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