The Mirka Muffler Connection + O-Ring Kit MPP9020 for PROS CV is a replacement parts kit for compatible Mirka PROS CV sanders. This is a sander replacement parts kit designed for restoring the muffler connection and seal in a dust-extracting pneumatic sander setup. Model Number: MPP9020. If your PROS CV is leaking, fitting loosely, or not holding its extraction connection the way it should, this is the kind of small service part that can make the tool feel right again without replacing the whole machine.

What matters here is function, not flash. On a central vacuum sander, the connection point and sealing surfaces do real work. When those parts wear out, you can lose efficiency at the hose interface and end up with weaker dust pickup or a tool that just does not connect as cleanly as it used to. Replacing the muffler connection and O-ring helps bring that interface back to proper condition so the sander can keep doing the clean finishing work it was built for.

This Mirka service kit is aimed at users already running the PROS CV platform, especially shops that depend on consistent sanding results and cleaner work areas. In automotive refinishing, composite work, and finish sanding, poor extraction is more than an annoyance. It means more cleanup, more airborne dust, and less control during surface prep. A correct-fit replacement part helps avoid that kind of downtime.

Mirka built the PROS line around ergonomics, long-run comfort, and efficient dust extraction. That means the related wear parts matter. The Mirka Muffler Connection + O-Ring Kit MPP9020 for PROS CV supports that system by addressing a specific connection point rather than forcing you into a broader repair. For maintenance-minded users, that is the practical move: replace the worn part, keep the sander in rotation, and protect the performance you bought the tool for in the first place.

Size information from available product data lists this part at 40 mm long and 15 mm wide, with a listed size of 15 mm. That compact form makes sense for a small connection component used within the sander's extraction or muffler assembly. The black finish and threaded body shown for this part also line up with a purpose-built replacement component rather than a general hardware fitting.

Who should buy it? Anyone maintaining a Mirka PROS CV sander who wants the correct replacement part instead of trying to adapt a generic seal or connector. If you are the guy in the shop who would rather spend a few minutes fixing the actual problem than fighting reduced airflow for the next six jobs, this is the smart buy.

Mirka Muffler Connection + O-Ring Kit MPP9020 for PROS CV Keeps a Good Sander Out of the Parts Bin

This is the kind of small Mirka replacement part that makes a big difference when your PROS CV starts losing the clean, tight feel it is supposed to have.

• Who it's for: Shops and serious users maintaining a Mirka PROS CV pneumatic sanding setup.
• Why it stands out: It is a model-specific service part aimed at the connection and seal area, which is exactly where wear can hurt airflow and dust collection.
• Worth knowing: This is a repair and maintenance item, not a universal fitting, so the key question is simple: are you servicing a PROS CV? If yes, this is the right kind of part to keep on hand.

• What tool does this fit? Available product data identifies this kit for Mirka PROS CV sanders.
• What is the model number? The model and part number is MPP9020.
• What kind of product is this? It is a muffler connection and O-ring replacement kit used to service a compatible Mirka sander connection point.
• What size is it? Available data lists a 40 mm length, 15 mm width, and 15 mm size.