Before ordering engine hoses, please make sure of the following:

The hoses listed on this page are for engines that have a 1.75″ raw water circuit. If you have an older B series engine, you need to make sure that your hoses are 1.75″ and not 1.5″. Engines that have an aftercooler with a 90 degree water outlet typically have 1.5″ diameter hoses. If you’re not sure, call us with your engine info (ESN, CPL, etc.) and we’ll help you figure it out.

6BTA 5.9 330/370 Diamond Engine Hoses Aftercooler Side

6BTA 5.9 330/370 Diamond Engine Hoses
not rated $315.00

Hose Clamps

Will include 2x clamps per hose contained within hose kit.

#1 HS-7502 Hose
6BTA 5.9 330/370 Diamond Engine Hoses AC Side
not rated $22.00

In stock

Optional Hose Clamps

Silicone Gear Oil Cooler 90 Degree Hose 1.75 in. ID
not rated $33.00

In stock

Optional Hose Clamps

#3 HS-9982
6BTA 5.9 330/370 Diamond Engine Hoses AC Side
not rated $29.00

Optional Hose Clamps

Fuel Cooler Hose
not rated $26.00

In stock

Optional Hose Clamps

#5 HS-6592
6BTA 5.9 330/370 Diamond Engine Hoses AC Side
not rated $85.00
#6 HS-6591
6BTA 5.9 330/370 Diamond Engine Hoses AC Side
not rated $55.00
#7 HS-7704
6BTA 5.9 330/370 Diamond Engine Hoses AC Side
not rated $90.00
#6 HS-6591
6BTA 5.9 330/370 Diamond Engine Hoses AC Side
not rated $75.00

In stock

#7 HS-7704
6BTA 5.9 330/370 Diamond Engine Hoses AC Side

New

not rated $110.00
#7 HS-7704
6BTA 5.9 330/370 Diamond Engine Hoses AC Side

New

not rated $128.00

Out of stock

6bta-engine-hoses-hx-side

6BTA 5.9 330/370 Diamond Engine Hoses Heat Exchanger Side

#1 HS-0094
6BTA 5.9 330/370 Diamond Engine Hoses HX Side
not rated $23.00

Optional Hose Clamps

#2 HS-7789
6BTA 5.9 330/370 Diamond Engine Hoses HX Side
not rated $29.00

Optional Hose Clamps

#3 HS-5089
6BTA 5.9 330/370 Diamond Engine Hoses HX Side
not rated $18.00

In stock

Optional Hose Clamps

HS-3549 QSB 5.9 Engine Hose
6BTA 5.9 330/370 Diamond Engine Hoses HX Side
not rated $29.00

In stock

Optional Hose Clamps

#5 HS-6550
6BTA 5.9 330/370 Diamond Engine Hoses HX Side
not rated $16.00

In stock

Optional Hose Clamps

HS-8759 Silicone Raw Water Heat Exchanger 1.75 in.
not rated $21.00

In stock

Optional Hose Clamps