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🔧 Cut through carbon, save your engine—and your wallet!
The DAYUAN 17-piece Injector Seat Cutter Set is a professional-grade tool kit designed to clean and decarbonize diesel injector seats efficiently. Featuring 13 different cutters to fit various nozzle types, it removes carbon deposits, rust, and coking buildup. Packaged in a sturdy plastic storage box, this set offers organized portability and a cost-effective alternative to costly workshop services, backed by strong user ratings.















| ASIN | B09ZTZ1YYJ |
| Best Sellers Rank | 10,289 in Automotive ( See Top 100 in Automotive ) 60 in Fuel System Tools |
| Brand | DAYUAN |
| Connector Type | Socket |
| Country of Origin | China |
| Customer Reviews | 4.4 4.4 out of 5 stars (306) |
| Exterior Finish | Outer hexagon |
| Global Trade Identification Number | 00754008750282 |
| Inlet Connection Type | Threaded |
| Manufacturer | Yinyuan Tools |
| Material | Plastic |
| Model Number | 754008750282 |
| Number of Pieces | 21 |
| Outlet Connection Size | 19 Millimeters |
| Outlet Connection Type | Threaded |
| Size | 17 pcs |
| Thread Size | 17 mm |
| Thread Type | Metric |
| UPC | 754008750282 |
| Valve Type | Pinch Valve |
M**C
Great buy
Worked great, mabee slightly blunt on the second injector seat cut but still does the job well , saved me a packet of dosh compared to a gar(b)age doing the job, , just make sure its nice and flat clean and shiney down that hole before you put a new copper washer in, then you can't go wrong, great bit of kit.
M**R
Good quality
Good peice of kit bought for my partner as he does all the mechanical bits. He said it worked like a Charm and was happy especially with all the extra add one
J**D
Good
Good service
M**N
Perfect injector seats
Very impressed and very good value for money, although you may need to use some tape to allow for a perfect fit where the holder sits inside the injector recess
M**I
Good quality thanks
Very good product
B**R
10/10
Works perfect
J**T
Hmmmm
They need an internal thread in back of each cutter. The groove where safety screw bites need to be deeper. Was working on a golf and butter came off deep down in the hole. Had there been a thread in the back I could have lowered a bar with threaded end down and easily got it out. These are good just you should first grind the flat for the safety screw 4 mm deeper
M**.
This tool very useful I like this tool.
Yes it’s very good on time I am happy.
C**N
Ottimo strumento necessario per fresatura sede guarnizioni iniettori!!!
T**Ä
Seems to be good quality, haven't use it yet.
M**L
Funciona bien. Las fresas no cortan mucho pero poco a poco hacen su trabajo. Me ha servido en un motor Mercedes OM646 con la fresa recta de 19x17mm, por si alguien necesita el dato.
G**R
Super produit pour nettoyer les puit d’injecteur
C**5
J ai pu faire mes joint d'injecteur pour une mercedes classe b sans soucis
Trustpilot
1 month ago
1 month ago