Kenworth T660 Coolant Hoses 2008–2017
Silicone coolant hoses, radiator hoses and molded elbows — 4-ply reinforced replacements matched by inner diameter and OEM number, the fix for the most common roadside coolant failure. The T660 was Kenworth's aerodynamic highway tractor (2008–2017), bridging the T600 and the T680 — still common in over-the-road fleets.
6 results
In StockPartStop
Straight Silicone Coolant Hose - 1.75" ID x 3ft Stick - 4-Ply Reinforced - Fits Kenworth & Peterbilt F02504S352
OEM D10302508
Cooling System
$47.99View
In StockPartStop
Upper Radiator Hose 2.5" , Fit Kenworth and Peterbild HE9324, 561.75250 , F046006
Part # F04-6006
Cooling System
$29.00View
In Stock
PartStop
Straight Silicone Coolant Hose - 2" ID x 3ft Stick - 4-Ply Reinforced - Fits Kenworth, Peterbilt & Navistar F02505S352
OEM D10302456
Cooling System
$22.99View
On Order
PartStop
Universal Silicone Hump Hose Coupler - 2" ID x 6" Length - 4-Ply Reinforced for Turbo, Intake & Coolant F02484S352
OEM F02484S352
Cooling System
$21.99View
On Order
PartStop
EGR Silicone Reducer Hose for Cummins ISX15 - 57mm to 48mm ID - Aramid Reinforced with Stainless Steel Ring F02486S352
OEM 3687223
Cooling System
$38.99View
On Order
PartStop
Molded Crankcase Breather Hose - 1.00" ID - Fits Cummins ISX15 & QSX15 - Replaces 4298695, 3427229,F02519S352
OEM 4298695
Cooling System
$52.99View
Every part above carries its own verified fitment — check the OEM / cross-reference number on the listing against your truck, or look up your VIN and we'll match parts to your exact Kenworth T660. Not sure? Call (253) 600-1351 — we verify fitment before you buy.