Land Rover Discovery 2 Defender TD5 Oil To Coolant Rail Hose

3 Ply Silicone Clips Optional 3 Colours

SSR019016K-ASH(CUT TO 68MM LONG)+SHC-ASH#2

£10.80

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Silicone Hose UK

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

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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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Land Rover Defender & Discovery 2 TD5 Oil Coolant To Coolant Rail Hose

Fitment:

Defender 1987 - 2006 : All Models With TD5 Engines
Discovery 1 1989 - 1998 : All Models TD5 Engines

Part No. PBH101980

This is a 3 ply reinforced silicone reducer. The original is prone to fail and this upgraded piece will outlast the car. The video shows the original rubber part and the new improved silicone piece so you can see how much better the silicone piece is. 2 hose Clips included

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
12	21	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

1

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.

2

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.

3

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.

4

Round to the nearest listed bore

Never go up: a bore wider than the fitting will not grip, whatever the hose is made of. If you land between listed sizes take the smaller bore, and secure it with a clip.

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

Ozone, abrasion, and heat resistance

2 · Reinforcement

High-strength polyester braids

Durability and pressure stability · From 12.33 bar (small bore) down to 2.8 bar (large bore) · Typically 3x working pressure (up to 37 bar)

3 · Inner liner

Smooth extruded silicone compound

Reliable sealing and flow efficiency · -50°C to +250°C (peak +250°C)

Find your perfect colour

The colour goes right through the silicone compound rather than sitting on top as a coating, so it will not fade, peel or discolour in service. Built to SAE J20 R3 in all three.

Black

Blue

Red

Colours shown are indicative — screen rendering varies.

How it's built

Three layers, each doing one job.

Three layers, from the outside in: high-grade silicone, high-strength polyester braids and smooth extruded silicone compound. Each one is doing a different job.

1

Outer cover

High-grade silicone

Ozone, abrasion, and heat resistance

2

Reinforcement

High-strength polyester braids

Durability and pressure stabilityFrom 12.33 bar (small bore) down to 2.8 bar (large bore)Typically 3x working pressure (up to 37 bar)

3

Inner liner

Smooth extruded silicone compound

Reliable sealing and flow efficiency-50°C to +250°C (peak +250°C)

Frequently Asked Questions.

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

Still can't find your answer?

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What is it, and what does it fit?

The oil cooler to coolant rail hose for the Land Rover TD5 engine - Defender 1987-2006 and Discovery with TD5 engines. It is listed against OE part number PBH101980.

Why replace the original?

The original rubber part is a known failure on this engine. This is a 3 ply reinforced silicone reducer, and on a part that is awkward to reach and messy when it lets go, the silicone version should outlast the vehicle.

How is it constructed?

3 ply reinforced silicone, built to SAE J20 R3. The size table on this page lists the exact bore, wall thickness, working and burst pressure, bend radius and length for the part.

Is it oil resistant?

Yes - this is oil-side silicone rated for the duty, which is why it goes where an ordinary coolant hose would swell and soften.

Does it come with clips?

Two clips are offered as an option at checkout. Take them - the clips that come off a twenty year old Land Rover have usually had their best day, and renewing them costs less than doing the job twice.

Is it a straightforward fit?

It is a direct replacement, so it goes back the way the old one came out. Access is the awkward part rather than the hose itself. Have a tray under it, because whatever is in the old one is coming out with it.