XZ90I45Lucas plungers w/ adjusting armDIA9MMLucas 9.0L XY90I45Lucas plungers w/ adjusting armDIA9MM 503241 Lucas 9.0R XZ85I45Lucas plungers w/ adjusting armDIA8.5MM 503673 Lucas Fordson 8.5L XZ95I45Lucas plungers w/ adjusting armDIA9.5MM 503675 Lucas 9.5L XY120I45Lucas plungers w/ adjusting armDIA12MM Lucas XY85I45Lucas plungers w/ adjusting armDIA8.5MM(A52) 503240 Lucas Fordson 8.5R XY95I45Lucas plungers w/ adjusting armDIA9.5MM 503242 Lucas 9.5R XY75I45Lucas plungers w/ adjusting armDIA7.5MM 512505-31 Lucas 7.5RH The main direction of our activity is the prodution of pump element ( plunger +barrel) for diesel engines. our products are of stable quality. Made of material bearing steel GCr15, hardness is HRC60-64, Clearance between barrel and plunger is about 2um, very small. Please check for stamp on the element for comparison, also if you are unsure if yours is a left or right handed helix, see the pumps section under the technical menu. email address :aqiao@weiyediesel.