5521 and 5834 Series: Premium Green Heater Hose

Our premium heater hose features a Thicker Wall that offers Higher Pressure handling than standard hoses. Strong and reliable, it withstands the hardening, cracking, and leaks that can be present in hostile engine environments. Plus, it is resistant to aging and chemicals, including coolant additives.

Benefits

Extreme Temperature Resistance
Extreme Duty Cycle Tested for Hostile Engine Environments
Superior Flexibility
Bend Radius 5 X ID
Durable Construction
Coolant Additives
Pressure Endurance
Box and Spool Lengths
Thicker Wall Offers Higher Pressure Handling

Construction

Flexfab 5521 Series: Silicone Hose with 1-Ply of Nylon Fiber Reinforcement. Green Cover, Red Liner
Flexfab 5834 Series: Silicone Hose with 1-Ply of Para-Aramid Fiber Reinforcement. Blue Cover, Red Line
Available in Green
Stocked In 25’ And 50’ Boxes
Available in Longer Lengths on Standard Wooden Spools - continuous lengths are not guaranteed, if continuous lengths are required please contact us for price and availability

Specifications

Meets or Exceeds the Operating Requirements of SAE J20 R3 Class A
Meets or Exceeds the Operating Requirements of TMC RP303B Class I Grade II
Standard Wall Thickness is .170”/.220”
Working Pressure is 1/3 of the Burst Pressure
Resists Hardening, Cracking, Cold Leaks, Aging, and Many Chemicals

5521 Series: Premium Heater Hose

Part Number	Inside Diameter Inch MM		Outside Diameter Inch MM		Actual Burst Pressure - PSI	Burst Pressure - PSI SAE J20 R1 TMC		Weight (LB/FT)	Overall Length (Feet)	Clamp
5521-025x25	0.25	6	0.64	16	475	475	125	0.121	25’ Box	-
5521-025x50	0.25	6	0.64	16	475	475	125	0.121	50’ Box	-
5521-025x800	0.25	6	0.64	16	475	475	125	0.121	800’ Spool	-
5521-031x25	0.31	8	0.70	18	475	475	125	0.151	25’ Box	-
5521-031x50	0.31	8	0.70	18	475	475	125	0.151	50’ Box	-
5521-031x600	0.31	8	0.70	18	475	475	125	0.151	500’ Spool	-
5521-038x25	0.38	10	0.77	20	475	475	125	0.181	25’ Box	2582-0006
5521-038x50	0.38	10	0.77	20	475	475	125	0.181	50’ Box	2582-0006
5521-038x500	0.38	10	0.77	20	475	475	125	0.181	600’ Spool	2582-0006
5521-050x25	0.50	13	0.89	23	425	425	125	0.226	25’ Box	2582-0006
5521-050x50	0.50	13	0.89	23	425	425	125	0.226	50’ Box	2582-0006
5521-050x500	0.50	13	0.89	23	425	425	125	0.226	500’ Spool	2582-0006
5521-062x25	0.63	16	1.02	26	375	375	125	0.258	25’ Box	2582-0010
5521-062x50	0.63	16	1.02	26	375	375	125	0.258	50’ Box	2582-0010
5521-062x400	0.63	16	1.02	26	375	375	125	0.258	400’ Spool	2582-0010
5521-075x25	0.75	19	1.14	29	325	325	125	0.301	25’ Box	2582-0012
5521-075x50	0.75	19	1.14	29	325	325	125	0.301	50’ Box	2582-0012
5521-075x300	0.75	19	1.14	29	325	325	125	0.301	300’ Spool	2582-0012
5521-087x25	0.88	22	1.27	32	300	300	125	0.346	25’ Box	2582-0012
5521-087x50	0.88	22	1.27	32	300	300	125	0.346	50’ Box	2582-0012
5521-087x200	0.88	22	1.27	32	300	300	125	0.346	150’ Spool	2582-0012
5521-100x25	1.00	25	1.39	35	300	300	125	0.391	25’ Box	2582-0016
5521-100x50	1.00	25	1.39	35	300	300	125	0.391	50’ Box	2582-0016
5521-100x200	1.00	25	1.39	35	300	300	125	0.391	200’ Spool	2582-0016
5521-125x25	1.25	32	1.64	42	200	275	125	0.491	25’ Box	2582-0020
5521-125x50	1.25	32	1.64	42	200	275	125	0.491	50’ Box	2582-0020
5521-125x150	1.25	32	1.64	42	200	275	125	0.491	150’ Spool	2582-0020

*Specifications for reference only. Specific test data available on request.

5834 Series: Premium Heater Hose

Part Number	Inside Diameter Inch MM		Outside Diameter Inch MM		Actual Burst Pressure - PSI	Burst Pressure - PSI SAE J20 R1 TMC		Weight (LB/FT)	Overall Length (Feet)	Clamp
5834-112x25	1.13	29	1.52	38	250	275	125	0.438	25’ Box	2582-0020
5834-112x50	1.13	29	1.52	38	250	275	125	0.438	50’ Box	2582-0020
5834-112x150	1.13	29	1.52	38	250	275	125	0.438	150’ Spool	2582-0020

*Specifications for reference only. Specific test data available on request.

5521 and 5834 available in the following hose ID sizes:

ID Fractional (Inch)	¼”	5/16”	3/8”	½”	5/8”	¾”	7/8”	1”	1-1/8”	1-1/4”
ID Decimal (Inch)	0.25	0.31	0.38	0.50	0.63	0.75	0.88	1.00	1.13	1.25
ID Millimeter	6mm	8mm	10mm	13mm	16mm	19mm	22mm	25mm	29mm	32mm

Available in Boxed Coils and on Reels

Boxed Coils	25’ Ft.	50” Ft.
Reels	200’ Ft.	250’ Ft.	300’ Ft.	400’ Ft.	500’ Ft.	600’ Ft.	800’ Ft.