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Webasto 60 mm Ducting Tee - Genuine Part 1320474A
$17.38
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Genuine Webasto part 1320474A — the tee that splits one 60 mm heater outlet into two, in high-temperature plastic that will not soften.
A single heater outlet in the middle of a van heats the middle of the van. A tee is how you get warm air to two places — a footwell and a bed, a living area and a wet locker — from one Webasto outlet.
This is the genuine Webasto item, part number 1320474A, molded in high temperature plastic. That material specification is the reason to buy the real one: air leaving an AT2000 is hot enough to distort a generic hardware store fitting, and a collapsed duct behind a cabinet is not a fault you will find quickly.
What it is for
- Splitting a 60 mm Webasto heater outlet into two runs.
- Any 60 mm ducting layout on an AT2000 series heater.
- Replacing a non-genuine tee that has distorted or cracked.
Compatibility
| Heaters | Webasto AT2000 series |
| Duct size | 60 mm, all three ports |
| Use with | 5000316A 60 mm flex duct × 2 meter |
| Use with | 5011917 60 mm clamp |
| Compatibility | All 60 mm ducting accessories |
Specifications
| Webasto part number | 1320474A |
| Part type | Duct tee |
| Construction | High temperature plastic |
| Outside diameter | 60 mm |
| Configuration | 60 mm × 60 mm × 60 mm |
What's included
- (1) genuine Webasto 60 mm × 60 mm × 60 mm ducting tee, part 1320474A
Working with it
Splitting a duct splits the airflow, and the two branches will not balance themselves. The shorter, straighter run takes most of the air. If you want a roughly even split, either make the two runs similar in length and bend count, or accept the imbalance and put the long run where you need less heat.
Clamp every joint. A duct that slips off a tee behind a cabinet blows hot air into the cabinet, which is at best wasteful and at worst a genuine hazard.
- Use 60 mm clamps (Webasto 5011917) at every joint. Tape is not a substitute.
- Keep the two branch runs similar in length and bend count if you want balanced flow.
- Minimize sharp bends — every tight bend costs you airflow.
- Do not let ducting touch the exhaust or the heater body.
- Support long duct runs so they cannot sag onto anything hot or sharp.
Questions we get asked
Will it fit my heater?
It is specified for the Webasto AT2000 series and all 60 mm ducting accessories. If your heater uses 75 mm or 90 mm ducting, this is not the part — check the outlet diameter before ordering.
Is this a genuine Webasto part?
Yes — part number 1320474A. Given that the entire point of the part is high-temperature plastic, the genuine item is what you want.
Does it come with clamps?
No. The 60 mm clamp is Webasto 5011917 and is sold separately. You need one per joint, so three per tee.
Pairs well with
Sold and shipped by Campervan Parts R Us, the parts counter of Noke Van Co. — a working van conversion shop in Roanoke, Virginia. If you are unsure whether this fits your van, email us the year, model and wheelbase and we will check it against a build sheet before you order.