O-rings are made to contain thousands of PSI pressure by creating a seal between two or more parts. O-ring measurements are defined by the inside diameter and the thickness. There are many causes for O-Ring failure. The most common among power tools are: • <u>Extrusion and Nibbling</u> • The O-ring has ragged, tattered edges. These are commonly caused by pressure spikes which shear off tiny "bites" from the o-ring, or caused by clearance gaps. • <u>Abrasion</u> • One or both sides of the o-ring appear rough and slightly flattened. Commonly caused by a contact surface that it too rough, contains grit or is too smooth to allow lubrication. • <u>Over Compression </u> • The O-ring is flattened on both sides and may have a "ring" split along its length. Commonly caused by excessive pressure or heat. • <u>Heat Hardening</u> • The O-ring has a pitted or cracked surface, and is often flattened on both sides. Caused by temperature exceeding o-ring capacity. • <u>Weather/Ozone Cracking</u> • The O-ring is covered in small surface cracks. Caused by exposure to ozone, UV rays and air pollution. Excessive seal stretching (greater that 5%) causes similar cracking.
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★★★★★
★★★★★
The parts I need .greatest source
Good and fast repair good results will go to them agian for parts
Jeff - April 18, 2019
Verified Purchase
★★★★★
★★★★★
Right part, fast shipping
It was the roght part, fit right, fast shipong
Guest - April 24, 2019
Verified Purchase
★★★★★
★★★★★
Good to have replacement parts for old air compressor
Bought in order to replace muffler and have a spare. My compressor is old so parts are hard to find.
Guest - November 7, 2019
Verified Purchase
★★★★★
★★★★★
easey
parts fit great and arrived on time air compressor up and running
Guest - April 16, 2020
Verified Purchase
★★★★★
★★★★★
OEM No leaks. Great!
Compressor is up and running.
The best.
Stephen - June 19, 2020
Verified Purchase
★★★★★
★★★★★
hard part to find
this fit just right and did the trick. arrived earlier than I thought it would!
Guest - September 5, 2020
Verified Purchase
★★★★★
★★★★★
The right part every time and received it sooner then expected
Great parts and perfect match to what I was wanting and fixed my compressor right up
Guest - May 25, 2021
Verified Purchase
★★★★★
★★★★★
Easy repair, the part did not match the model number had to reorder using size pattern which helped a lot.
The parts arrived promptly and machine is running great. Have found parts for craftsmen equipment with your company that I couldn't find any where else.
Randall - July 30, 2021
Verified Purchase
★★★★★
★★★★★
Precisely what was needed
Fit up was exactly right. Web site made it easy to find the correct parts. Quality was better than the last place I bought parts from. I will order from ereplacementparts again.
Guest - September 3, 2021
Verified Purchase
★★★★★
★★★★★
Hard to find parts
This was part of an overhaul kit for an older Craftsman compressor. Parts are hard to find, but eReplacements had them. All arrived on time and in good shape. Everything was the correct size and went together well. Great company; highly recommended.
Guest - January 19, 2022
Verified Purchase
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Removed the valve head.
Set piston to top.
Removed compression ring retaining cap.
Removed old ring.
Placed new ring, setting retaining cap back on top of piston.
Replaced o ring on valve head.
Replaced valve head.
Worked like a champ.
Was able to unscrew the two broken bolts. Replaced the 2 o rings with new ones. And installed two new bolts. The compressor is working like brand new. Pressure builds up to 120 psi. Now. And stays there.
1 removed the plastic covers front and back of the motor.
2 removed the G࣠aluminum line from the compressor head to the tank.
3 removed the 4 bolts from the head.
4 removed the O-rings that were defective, and replaced with new ones.....clean as needed.
5 put it all back together in the reverse order that was dis
... Read moreassembled.
6 job completed, plug in the air compressor and test.
Removed-the heads read plate assemblyGÇÖs,
with one torx screw on each head removed the worn out piston rings, and replaced with new ones. Reinstalled reed Plate and head with new O-rings and wallah, sears compressor works like a new one again after 25 years of use.
This part is in stock in our warehouse and will ship out within 1 business day of the order being placed.
New stock is on the way! On order parts usually ship within 7 business days.
Item is not in stock and usually ships 10-15 business days from the time you place your order.
This item is no longer being made by the manufacturer, and cannot be added to your shopping cart.
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Mail-In Recycling Rebate
Some of the parts we sell are eligible for mail-in rebates since we can recycle them. We will display any applicable rebates in your shopping cart. To redeem your rebate, contact Customer Service after you have received your part.
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