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Part# 05-00671
MFR Model# 76J200000019
DescriptionIDODWt/Ft/LlbsPart No.
Silicone Hose3/4"1.07".27605-00671


Extruded silicone hose specially recommended for engine cooling and heating system applications.
California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm -


  • Outer Layer: Silicone VMQ, smooth and blue.
  • Reinforcement: Polyester braiding.
  • Inner Layer: Silicone VMQ, smooth and blue.
  • Temperature: -55C to +180C (-67F / +356F ).
  • Manufacturing Length: Standard rolls of 76,2m (250 ft.).


Physical Tests Method SAE
Cold Flexibility
(5hrs/ -40C)
SAE J20 (5.1.2) Not Fracture, not show
any cracks or breaks
Ozone Test
(50ppcm/100hrs/40 C)
ASTM D-1149 Not show any cracks Pass
Kink Test (%) SAE J20 (5.1.4) Collapse allowed 25% <9

Smooth inner and outer appearance, and blue color.Excellent resistance to thermal aging and oxidizing agents (oxygen, ozone, UV).Operational temperature range from -60C (-75 F) to +180C (356 F).The standard manufacturing length is 76 meters long (249.34 ft.), although it isavailable in shorter lengths if necessary.

The material is in compliance with the RoHS Directive 2002/95/EC and its subsequent amendments including the RoHS2 Directive 2011/65/EU and RoHS3 Directive 2015/863.


  • It is especially recommended for use in water and ethylene glycol-based engine coolant system applications.
  • For the automotive industry, the most common standard for coolant system hoses is SAE J20, which classifies them according to type of service. This reference, SAE 20R3, are for heater service.
  • This type of hose is used in connecting heater systems and other components in the
  • coolant circulating systems of ground vehicles (for example in heavy duty truck and bus engines).


Very high quality material and finishing.

Ricardo V
December 20, 2018


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Are these hoses rated for certified aircraft?

No, these are for experimental aircraft applications only.

Q: Is this silicone hose suitable for use with EVANS NPG + COOLANT?

Per the supplier: Yes, it will work just fine.

Q: What is the pressure & temperature rating of this Silicone Hose?

Per the supplier: -50 inches vac / 350 temp / 100 psi. It is the same hose Rapco uses.

Q: Can this silicone hose be used for regular unleaded or avgas fuel?

This hose is not recommended for fuel or oil.

Q: Can this hose be used for the vacuum avionics system?

It is intended for use in the engine cooling and heating systems. It could probably be used in a vacuum system but it may be a little heavier than needed.

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