1、Fitment and OE: Height adjustment tool for fuel injector is replacement for Caterpillar CAT 3406E C-15 C-16. The reference part numbers are 9U 7227; 42083. 2、Precise Adjustments: With our injector height tool, you can adjust your fuel injector height accurately, via its two step adjustment system after you finish the valve adjustments. 3、Powerful Function: Injector height adjustment tool is used in order to obtain a dimension of 78.0 ± 0.2 mm (3.07 ± 0.01 inch). The dimension is measured from the top of the unit injector to the machined ledge of the fuel injector body. 4、Optimal Torsion: Simple to use, tighten lock nut to a torsion of 100 ± 10 N·m (74 ± 7 lb ft). The tool exhibits exceptional anti wear properties, ensuring its reliability and durability. 5、Rugged Construction: The robust aluminium alloy construction of the injector height adjustment gauge tool resists against wear, ensuring long lasting use. Item Type: Injector Height Adjustment Tool Material: Aluminium alloy OE: 9U 7227; 42083 Fitment: Replacement for Caterpillar CAT 3406E C-15 C-16 1 x Injector Height Adjustment Gauge Tool