This is a NEW Stanadyne pencil injector, not used or "reman". We refrain from selling "reman" pencil injectors because they are only used injectors with eroded holes. What other companies sell as "reman pencil injectors" will lead to hard starts, higher fuel consumption, and rough running. This is because they are only used injectors taken out of another tractor with thousands of hours of run time. Feel free to call our parts department at 800-891-8038 with any questions.