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Injector sizes and dimensions

Fuel injector cups and spigots bored and honed to common injector O ring diameters. Used for fuel rails, injector adapters and spacers.

Injector dimensions

The dimensions we machine to. Pressure values are nominal working ratings for steel at room temperature.

Size	Male	Female	Cup bore	Cup depth	Lead chamfer	Bore finish	Spigot OD	Fuel passage	Seal	Rated to
9.5 mm	Injector spigot Ø9.30 mm with O ring groove	Injector cup Ø9.50 +0.05/0 mm	9.50 mm +0.05/0	12.00 mm	15° × 1.5 mm	16 Ra, honed	9.30 mm	4.28 mm	Injector O ring, verify for your injector	750 psi
11 mm	Injector spigot Ø10.80 mm with O ring groove	Injector cup Ø11.00 +0.05/0 mm	11.00 mm +0.05/0	14.00 mm	15° × 1.5 mm	16 Ra, honed	10.80 mm	4.95 mm	Injector O ring, verify for your injector	750 psi
12.7 mm	Injector spigot Ø12.50 mm with O ring groove	Injector cup Ø12.70 +0.05/0 mm	12.70 mm +0.05/0	15.00 mm	15° × 1.5 mm	16 Ra, honed	12.50 mm	5.71 mm	Injector O ring, verify for your injector	750 psi
14 mm	Injector spigot Ø13.80 mm with O ring groove	Injector cup Ø14.00 +0.05/0 mm	14.00 mm +0.05/0	16.00 mm	15° × 1.5 mm	16 Ra, honed	13.80 mm	6.30 mm	Injector O ring, verify for your injector	750 psi
14.5 mm	Injector spigot Ø14.30 mm with O ring groove	Injector cup Ø14.50 +0.05/0 mm	14.50 mm +0.05/0	16.00 mm	15° × 1.5 mm	16 Ra, honed	14.30 mm	6.52 mm	Injector O ring, verify for your injector	750 psi
16 mm	Injector spigot Ø15.80 mm with O ring groove	Injector cup Ø16.00 +0.05/0 mm	16.00 mm +0.05/0	18.00 mm	15° × 1.5 mm	16 Ra, honed	15.80 mm	7.20 mm	Injector O ring, verify for your injector	750 psi

Pick the other end, the shape and the material, and see the price before you order.