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The DS-4019951 exhaust manifold replaces old part number DS-4020065.This item is a new replacement part shipped with a 12-month warranty.
TURBOCHARGER GASKET - 4BT3.9 / 6BT5.9 / ISB3.9 / ISB4.5 / QSB3.9
Genuine Cummins Part
$81.63
EXHAUST MANIFOLD GASKET - B SERIES / ISB / QSB
$1.61
UPPER ENGINE GASKET SET - 6B 5.9 (1983-APRIL 2003)
$152.25
