Shopping Cart

Your cart is empty.

Your cart is empty.

Bosch (FIX 7828) Professional Compression Tester

Free shipping on orders over $29.99

$89.99

$ 35 .99 $35.99

In Stock

About this item

  • Measures cylinder compression to accurately diagnose engine condition
  • Compatible with most standard spark plug threads
  • Quick disconnect coupler separates hose from gauge for faster, easier connections to the engine
  • Push button side release valve allows repeated testing without disconnecting
  • Includes adapters for most standard spark plug threads: 10mm, 12mm, 14mm, 4mm long reach, 18mm


Bosch's Professional Compression Tester Kit is an ideal tool for detecting worn piston rings, burnt valves, and blown head gaskets on most foreign and domestic vehicles, small engines, motorcycles, snowmobiles, and ATVs. Convenient push-button side release valve allows repeated testing without the need to disconnect between tests saving you valuable time and eliminating the hassle. Gauge features a 2-1/2 inch diameter, easy-to-read white face with standard and metric scales: 0-300 PSI and 0-2100 kPa, highly accurate Bourdon Tube movement, and heavy-duty rubber boot. The 17 inch, high-pressure, flexible, oil and grease resistant hose features a quick release connection at the gauge for faster, easier use. Includes adapters for most standard spark plug thread sizes: 10mm, 12mm, 14mm, 14mm long reach, and 18mm plus a handy repair kit with valves and rubber O-rings. Note: it is very important to ensure that adapters are securely tightened to the hose to prevent possible separation when removing the tester from the cylinder head. Includes comprehensive instructions in English, Spanish, and French. 1 year .


Orange Sand
Reviewed in Germany on June 7, 2024
Schon mehrmals Kompressionsmessung durchgeführt. Funktioniert alles wunderbar. Eine kleine Aufbewahrungsbox wäre eine gute Verbesserung, denn es wird im Plastik-Blister verkauft und der reißt beim Öffnen.
SeanC
Reviewed in Australia on February 17, 2024
Good quality. Simple to use. Gives reproducible readings.
Jonathan
Reviewed in the United States on May 13, 2023
Used this to test compression on my 280zx and it worked fine. But if that isn’t the cheapest little pressure relief button. Just feels odd to have a “professional” Bosch” tool with a flimsy piece of plastic hanging off. Mind you this is one of the main locations you will be interacting with on the tool…
stacey reeves
Reviewed in Canada on October 15, 2023
Works great the first year, however 3rd time using, the thread end cam off the long tube and is now stuck in the spark plug hole. Just another disappointment for the backyard mechanic. Now I need another tool to deal with this tool; do they even make a 5" needle nose?
Customer
Reviewed in the United States on August 30, 2022
I wish it was a bit more accurate, but it gets the job done. If the dial lands between makings you basically have to guess. No big deal, if you get low readings you already know you have a serious engine problem. Which is why I purchased an engine leak down tester as well.
jay
Reviewed in the United States on June 10, 2022
Works great. Carry case would be nice
Customer
Reviewed in the United States on May 24, 2022
Worked great for the price.
Tielor WoodsCrouch-daly
Reviewed in the United States on March 22, 2022
The adapters are great the garage feel and are built great I would recommend spending the extra money for this kit.
Stefan
Reviewed in Germany on October 15, 2022
Gutes Preis Leistungsverhältnis. Funktioniert einwandfrei. Werte wurden mit einem Kompressionsdruckschreiber von Motometer verglichen.
Jean-Michel
Reviewed in Canada on January 27, 2022
For the price, you will not find a better option on Amazon. Pay the extra 30$ over other similar cheap tools..it's worth it.
Nate
Reviewed in the United States on January 18, 2022
Tells you exactly what you need to know, even if you don't want to know. Like a burnt valve. Or worn rings. The extension is great, the adapters are great, and it works great for a leak down test. What is not to like?
Randy m
Reviewed in the United States on April 26, 2022
Buy 'em, they work!!!
MRfixIT
Reviewed in the United States on November 12, 2021
Love this for the price. Has a flexible hose and a pipe style adapter making it very versatile.