45 Degree Fuel & Oil Silicone Long Leg Elbow

Name: 45 Degree Fuel & Oil Silicone Long Leg Elbow
Brand: Auto Silicone Hoses
SKU: FSL045013K-ASH
Price: 16.51 GBP
Availability: InStock
Rating: 5.0 (2 reviews)

FSL045013K-ASH

£16.51

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Silicone Hose UK

HolmeBank Business Park, Station Road
Unit 5
Mirfield WF14 8NA
United Kingdom

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Opening hours

Monday	07:00 – 19:00
Tuesday	07:00 – 19:00
Wednesday	07:00 – 18:00
Thursday	07:00 – 18:00
Friday	07:00 – 17:00
Saturday	07:00 – 13:00
Sunday	Closed

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Silicone 45° Fuel & Oil Long Elbow Hose is engineered for high-performance fuel, oil, and hydrocarbon transfer in automotive, marine, and industrial systems. Constructed with a smooth extruded flouro silicone compound inner layer, reinforced with multiple polyester braids, and finished with a durable silicone outer layer, this long elbow hose provides exceptional resistance to fuels, oils, and vapours. The 45-degree bend with extended 300 mm legs on each side allows easy installation where long offset connections are required, while maintaining secure sealing and flow efficiency. Operating continuously between -50°C and +250°C, and conforming to SAE J30 R6 standards, the hose ensures reliable service in harsh environments, including high-heat engine bays, industrial machinery, and marine fuel systems. Its multi-ply construction delivers superior stability, flexibility, and endurance under vibration, pressure cycling, and temperature extremes.

Key Features:

Inner Layer: Smooth extruded flouro silicone compound for excellent fuel and oil resistance.
Reinforcement: Polyester braids for strength and pressure stability.
Outer Layer: High-grade silicone for heat and weathering resistance.
Construction: 3–4 ply with long 300 mm leg length for flexible installation.
Operating Temperature: -50°C to +250°C (peak +250°C).
Internal Diameter Range: 6.5 mm to 102 mm.
Working Pressure: 12.33 bar (small bore) down to 2.8 bar (large bore), size dependent.
Bursting Pressure: Typically 3x working pressure (up to 37 bar).
Bend Angle: 45° with extended 300 mm legs for secure fitment.
Standard: SAE J30 R6 compliant.

The smooth flouro silicone lining provides excellent resistance to fuels, oils, and aggressive hydrocarbons, ensuring long-term reliability where standard silicone hoses may degrade. Polyester braid reinforcement gives the hose structural integrity and pressure stability, while the thick silicone outer layer offers resistance against heat, ozone, and abrasion. The 45° long elbow design with extended leg lengths supports custom routing in confined or offset systems, reducing the need for additional connectors. With working pressures ranging from 12.33 bar to 2.8 bar depending on size, and burst ratings up to 37 bar, the hose provides a strong safety margin for performance and industrial use. The multi-ply construction ensures durability in continuous use, making it suitable for demanding automotive and industrial installations.

Typical applications include automotive fuel delivery lines, oil breather and return systems, marine fuel handling, motorsport fuel and oil routing, and industrial machinery requiring angled connections for hydrocarbon transfer. Also used in custom engineering, heavy-duty maintenance, and agricultural equipment, the silicone 45° fuel and oil long elbow hose is valued for its chemical resistance, extended service life, and flexible installation. Keywords: silicone fuel elbow hose, 45-degree silicone oil bend, flouro silicone reinforced elbow, high-temperature fuel hose, SAE J30 R6 silicone elbow, long leg silicone elbow hose.

Specifications

Type: 45 Degree Multipurpose Elbow
Colour: Black
Standard: SAEJ30R6
Each Leg Length: 300mm

Size Guide

Inside Diametermm	Outside Diametermm	Wall Thicknessmm	Working Pressurebar	Bursting Pressurebar	Bending Radiusmm	Number Of Ply
6.5	15.5	4.5	12.33	37	16	3
8	17	4.5	11.67	35	16	3
9.5	18.5	4.5	11.67	35	16	3
11	20	4.5	9	30	16	3
13	22	4.5	8.33	27	16	3
16	25	4.5	7.17	25	18	3
19	28	4.5	6.5	19.5	18	3
22	31	4.5	5.8	17.4	20	3
25	34	4.5	5.5	16	30	3
28	37	4.5	5.33	16	30	3
30	39	4.5	5.33	16	30	3
32	41	4.5	5.17	15.5	32	3
35	44	4.5	5	15	35	3
38	47	4.5	5	15	35	3
40	49	4.5	4.83	14.5	35	3
45	54	4.5	4.67	14	40	3
48	57	4.5	4.5	13.5	45	3
51	62	5.5	4.5	13.5	51	4
54	65	5.5	4.33	13	60	4
57	68	5.5	4.33	13	60	4
60	71	5.5	4.17	12.5	60	4
63	74	5.5	4	12	63	4
65	76	5.5	3.85	11.5	65	4
68	79	5.5	3.6	11	65	4
70	81	5.5	3.5	10.5	65	4
76	87	5.5	3.5	10.5	65	4
80	91	5.5	3.33	10	70	4
83	94	5.5	3.17	9.5	70	4
90	101	5.5	3	9	70	4
102	113	5.5	2.8	8.5	70	4

Measurements are nominal and may vary slightly.

How to measure ID

Measure the pipe, not the old hose

Heat and age make a used hose swell and go out of round. Take your reading across the metal outlet the hose slides onto — that measurement is your ID.

Use vernier calipers

Set the outer jaws across the widest point of the pipe. A tape measure round a curve reads low by a millimetre or two — enough to buy the wrong size.

Take three readings, keep the largest

Rotate 60° between each. If they disagree the pipe is oval; size to the biggest figure so the hose still seals.

Round to the nearest listed bore

Silicone stretches slightly. If you land between sizes, go down to the smaller bore for a tight seal — never up.

Order by ID, always. Every hose on this site is listed by internal diameter. OD is given for clearance only — it changes with wall thickness and ply count, so it is never the ordering size. On reducers, quote both ends, largest first.

Construction

1 · Outer cover

High-grade silicone

Heat and weathering resistance

2 · Reinforcement

Polyester braids

Strength and pressure stability · 12.33 bar (small bore) down to 2.8 bar (large bore), size dependent · Typically 3x working pressure (up to 37 bar)

3 · Inner liner

Smooth extruded flouro silicone compound

Excellent fuel and oil resistance · -50°C to +250°C (peak +250°C)

Conforms to SAE J30 R6.

45 Degree Fuel & Oil Silicone Long Leg Elbow

✅ 300mm Leg ✅ 600mm Long ✅ 3 & 4 Ply

Frequently Asked Questions.

Answers to the questions we’re asked most about sizing, fitment and performance.

Still can't find your answer?

What size do I order?

Order by internal diameter, matched to the outside diameter of the metal pipe or stub the elbow slides onto. Measure the pipe itself with vernier callipers, not the hose you are replacing - hose stretches in service and reads a size large. Available in internal diameters from 13mm to 76mm, in black.

How long are the legs?

300mm on each side, giving 600mm total length. That leaves plenty of material to trim back to the length you need. If you cut them down, leave at least 25-30mm of straight leg beyond the bend so the clip seats on a supported section - never let a clip end up sitting on the curve, because it will not seal evenly there.

What temperature and pressure will it take?

Continuous service from -60C to +180C, built to SAE J30 R6. Working pressure runs from 12.33 bar on the smallest bore down to 2.8 bar on the largest, with burst pressure from 37 bar down to 8.5 bar across the 6.5mm to 102mm range. For context, a car cooling system typically runs at 1 to 1.5 bar and well under 120C, so there is a substantial margin.

How is it constructed, and how many plies?

A fluorosilicone inner lining for hydrocarbon resistance, polyester braid reinforcement, and a durable silicone outer layer that resists heat, ozone and abrasion. Smaller bores are 3 ply and larger bores step up to 4 ply - each size is built with the reinforcement it needs, so you do not have to specify it. Wall thickness runs from 4.5mm to 5.5mm depending on bore.

Is it compatible with E5 and E10 petrol?

Yes - the fluorosilicone liner handles modern ethanol-blended petrol, diesel, oils and fuel vapour. That matters because ethanol attacks unsuitable hose from the inside, so an older line can look perfect externally while degrading internally and shedding material into the fuel system.

What is the bend radius?

Bend radius runs from 16mm on the smallest bore to 70mm on the largest. That is the radius the elbow is moulded to, so the bore stays fully round through the bend and flow is not restricted - which is exactly why a moulded elbow beats bending a straight hose round the same corner.