over 272 kg but not over 317 kg, for compression-ignition internal combustion piston engines (diesel or semi-diesel engines), such engines each having a cylinder capacity of approximately 12.4 liters and for vehicles of subheading 8701.20 or 8704.23 (provided for in subheading 8409.99.91) Free No change No change On or before 12/31/2025 . 11986. Swirler assemblies for turbines Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.30.07 Swirler assemblies, designed to be used in non-aircraft gas turbines (provided for in subheading 8411.99.90) Free No change No change On or before 12/31/2025 . 11987. Barrels for fuel mixing Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.30.08 Barrels of nickel alloy, for fuel mixing within non-aircraft gas turbines of heading 8411 (provided for in subheading 8411.99.90) Free No change No change On or before 12/31/2025 . 11988. Injector assemblies for certain turbines Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.30.09 Injector assemblies of fuel injection components, designed to deliver fuel in the combustion system for use in non-aircraft gas turbines of heading 8411 (provided for in subheading 8411.99.90) Free No change No change On or before 12/31/2025 . 11989. Stem assemblies for certain turbines Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.30.10 Fuel tube air-swirlers forming stem assemblies of nickel alloys and stainless steel for use in non-aircraft gas turbines of heading 8411 (provided for in subheading 8411.99.90) Free No change No change On or before 12/31/2025 . 11990. Tip assemblies for non-gas turbines Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.30.11 Tip assemblies of nickel alloy, for use in non-aircraft gas turbines of heading 8411 (provided for in subheading 8411.99.90)