COMPATIBILITY: For DT 466E, 530E, T 444E, Navistar. For I.H.C. NAVISTAR L6, 466 C.I., (7.6L), HEUI Diesel Elec. Inj. 12 Valve. For I.H.C. NAVISTAR L6, 530 C.I., (8.7L), Diesel Electrical Inj. 12 Valve. For I.H.C. TRACTOR L6, 530 C.I., (8.7L), Diesel Elec. Inj. 12 Valve. For T444E SUPERIOR QUALITY: Constructed from superior quality heat-treated steel and rubber. It features its durable construction, high performance and long service life A MUST HAVE: .