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Diesel Injector Seat Cutter Set — view 1Diesel Injector Seat Cutter Set — view 2Diesel Injector Seat Cutter Set — view 3Diesel Injector Seat Cutter Set — view 4

Diesel Injector Seat Cutter Set

4.3 out of 5 · 11 ratings on this listing

$45.99latest confirmed price — the stamp shows today's

Check today's price for the Diesel Injector Seat Cutter Set

Injectors reseal against clean seats or they don't reseal at all. Fifteen cutters with flat and angled profiles — a 19-piece set in total — shave carbon and minor damage from injector seat surfaces so the new washer seals gas-tight on honest metal.

  • 19-piece set with 15 flat and angled seat cutters
  • Removes carbon deposits, residue and light surface damage
  • Restores the sealing face before new injectors go home
  • Stops compression leaks past reused, fouled seats
BrandBILITOOLS
Tool wallEngine & Timing
Latest confirmed price$45.99
Versions in the family1

Owner reports

From the people running this tool

Good product

Worked very well for us.

KAC · September 30, 2026
Clean Injector Seat Results Without Paying Shop Tool Prices

The BILITOOLS Diesel Injector Seat Cutter Set worked well for cleaning up injector seats that had carbon buildup and sealing marks around the contact area. Used on a diesel cylinder head during an injector seal replacement, the cutter removed the stubborn deposits that a brush and solvent left behind. A few light turns were enough to clean the seat without feeling like too much material was being removed. The cutters fit securely in the handle and were eas…

TIF · August 17, 2026
Clean and shiny

Pulled, cleaned and reinstalled the injectors on a Volvo Penta D6 marine engine. The carbon buildup made getting the injectors out very difficult. Couldn’t even tell that the injector seat was copper. After cleaning out the bore with this tool the rebuilt injectors slid right in. Wish I had this set in the past. Won’t do another set of injectors without cleaning the seat and bore.

Mark and Laura · August 10, 2026

Same wall

Next to it on the Engine & Timing wall