Offered is a 4078709 Cummins Transmission/Gear Cooler. 4078709 has been superseded to 5270992. This is a drop in replacement for ZF Transmission ZF305A. Guaranteed for fit and function with a 2 year warranty. This part uses a copper nickel bundle as with the OEM version. We do not sell this part with a copper bundle. This cooler may work for other transmissions. We are only aware of the one listed.

There is a sister part 5270992 and 4078709 for your other motor.

Some details to note:

• Cummins transmission/gear coolers 4078709 & 5270992 are the same part.
• We now include an O-ring with your purchase.
• This part is built with a copper nickel bundle
• We also use cast ends to create an OEM quality equivalent drop in replacement for this part.

Our product is a drop in replacement for these part numbers:

• 4078709
• 5270992

This part fits the following engines (possibly more):

• 6C8.3,C GAS PLUS CM556,C8.3 G,G8.3,G8.3 CM558,GTA8.3 CM558,ISC CM2150,ISC CM554,ISC CM850,ISC8.3 CM2250,ISL CM2150,ISL CM554,ISL CM850,ISL G CM2180,ISL9 CM2150 SN,ISL9 CM2250,ISL9 CM2350 L101,ISM CM570,ISM CM870,ISM CM875,ISM CM876,ISM CM876 E,ISM11 CM876 SN,L GAS PLUS CM556,L8.9,L9.3 L105,M11 CELECT,M11 CELECT PLUS,M11 MECHANICAL,QSC8.3 CM2250,QSC8.3 CM554,QSC8.3 CM850,QSL9 CM2250,QSL9 CM2350 L102,QSL9 CM554,QSL9 CM850,QSL9 G CM558,QSM11 CM570,QSM11 CM876