SPECS: -58°F to +482°F Operating Range, 120 PSI Burst Strength

Silicone Firewall Heater Hose Kit w/ Breeze Constant Torque Clamps
Samco Sport Silicone Firewall Heater Hose (FHH) kit with 4 Breeze Constant Torque Clamps. $45 with free standard shipping. provides superior protection with clamps and silicone hose that are re-useable

Gates Green Stripe Hose SPECS:  -47°F to +275°F Operating Range95 PSI Burst Strength

The Gates Green Stripe II hose with Breeze Constant-Torque clamps Kit is an almost permanent fix for the FHH.  The Gates Green Stripe specs far exceed that of OEM and generic heater hose and clamp capability. 


Gates Green Stripe Hose has heavy-duty construction assures dependable operation of truck, bus, and off road equipment heater systems. It's approved for marine applications, the cover is abrasion resistant.Advanced EPDM tube, cover, and reinforcement withstand high under-hood and coolant temperatures. Designed for extended use without cracking or hardening. Exceeds SAE 20R1 Type EC, Standard Wall Class D-1.

Breeze Constant-Tourque Clamping System: Virtually all rubber hose compresses "cold flow" after installation of a clamping device, resulting in an almost immediate torque loss that can exceed 80% of installation torque. Similarly, virtually all metal connections expand as a system heats up, and then contracts as the system cools. Conventional worm-gear, T-Bolt, and other clamps are passive, in that expansion and contraction of components cannot be compensated for without retightening or loosening the clamps. The Breeze clamping system is an "active" clamp mechanism, which monitors and then compensates for the temperature changes by actually changing diameter through a unique worm-gear Belleville assembly.

  • Quadra-lock construction - housing orbitally riveted to saddle at 4 points providing extra strength.
  • Liner protects soft or silicone hose from damage, extrusion or shear.
  • Eliminates the sometimes necessary replacement of "single use" clamps during routine or emergency maintenance.
  • Easily installed, easily replaced in the field.
  • Energy store in compressed Belleville springs controls automatic clamp adjustment.
  • Torque Check - permits visual assurance that the clamp is properly installed.
  • Stainless steel -- virtually unlimited product life - won't rust or corrode and is reuseable
Xtreme Silicone Firewall Heater Hose Kit w/ Breeze Constant Torque Clamps
Samco Xtreme Silicone Firewall Heater Hose (FHH) kit with 4 Breeze Constant Torque Clamps. $55 with free priority shipping. provides superior protection with clamps and silicone hose that are re-useable

Gates Green Stripe Firewall  Heater Hose Kit w/Breeze Lined Stainless Steel Clamps

Legendary Gates Green Stripe Firewall Heater Hose with 4 Stainless Steel Breeze lined Clamps. $18 with free standard shipping. 

Gates Green Stripe Firewall  Heater Hose Kit w/Breeze Constant Torque Clamps

Legendary Gates Green Stripe Firewall Heater Hose with 4 Stainless Steel Breeze Constant Torque Clamps. $28 with free standard shipping.

Gates Green Stripe FHH with Breeze Lined Clamps

Firewall Heater Hose Kits


Modification to your vehicle are done at your own risk and www.phhkit.com, it’s creators and owners do not accept liability or responsibility arising from damage caused by installing parts or doing modifications to your vehicle.  While we stand behind the quality of the above products, www.phhkit.com, it’s creators and owners will under no circumstances be liable for for any damages to the users of this site and/or their equipment as a result of using information or products obtained from this web site.

SPECS: -58°F to +356°F Operating Range, 120 PSI Burst Strength

The Samco Xtreme or Gates Firewall Heater Hose (FHH) kit with Breeze clamps provides far superior protection for your cooling system than generic heater hose you buy at thelocal auto parts store.  Our Land Cruisers normally run around 190-200 degrees water temperature.  On hot days, towing or wheeling, temperatures can sometimes easily reach 215-230 degrees.  If your cooling system isn't operating correctly, this can be a normal occurrence.  Generic heater hose Maximum operating temperature can be as low as 175 degrees.  Usually the specs aren't printed on the package because it is so low.  It is a warped head gamble you shouldn't take! The Samco Sport, Xtreme and Gates Green Stripe Firewall Heater Hose (FHH) kit replaces the 5/8ths 100mm and 50mm sections of heater hose and clamps above the valve cover near the firewall.

Inferior Cheap Generic Silicone Hose

Samco Sport Silicone Hose

Samco Xtreme Silicone Hose