Nissan Leaf (ZE1) Radiator Cap – 0.9 bar
This radiator cap seals the cooling system on the second-generation Nissan Leaf (ZE1) and holds it at the right pressure. It is a metal cap with a 0.9 bar opening pressure.
Replace the cap if the seal is perished or cracked, the coolant level keeps dropping, or coolant is pushed out of the system. A weak cap lets the coolant boil off.
This is Blue Print part number ADC49909, made by the bilstein group. Febi 1007485 is the same part under another brand name.
Febi and Blue Print are brands of the bilstein group, a German parts maker that supplies replacement parts for cars and vans across the world. Each part is made to match the original in fit and function, so it fits without modification. Getting the right part first time saves time in the workshop, so compare the numbers on your old part with the ones listed here before you order. Keep the old part until the new one is fitted and working, so you can compare them side by side if you need to.
The table below shows the Nissan versions listed in the bilstein group parts finder, with each note word for word. Listed in the parts finder for the Nissan Leaf (ZE1, 2017 on) 110 kW and 160 kW. Some versions carry a note in the fitment table. Some versions are listed with a VIN-range note, shown word for word in the table; it is there for fitment information only. Compare the Nissan part number on your existing part with the numbers on this page before ordering.
Key Benefits
- 0.9 bar opening pressure
- Metal cap
- Seals the cooling system
- For the ZE1 Leaf
- Made by the bilstein group
Specifications
- Material: Metal
- Opening Pressure: 0.9 bar
- Part Number: Febi 1007485 | Blue Print ADC49909
Replaces Nissan part numbers 21430-7999C, 21430-7996D and 21430-7999A.
Installation
Easy to fit. Only remove the cap when the system is cold, check the filler neck is clean and undamaged, and fit the new cap firmly.
Explore More Parts
| Attribute | Value |
|---|---|
| Material | Metal |
| Opening Pressure | 0.9 bar |
| Part Number | Febi 1007485 | Blue Print ADC49909 |
Fits The Following Nissan Models
| Model | Submodel |
|---|---|
| Nissan Leaf (ZE1) 2017 – Vehicle Identification Number (VIN): FSD************** |
(E) – 160 kW / 218 hp |
| Nissan Leaf (ZE1) 2017 – Vehicle Identification Number (VIN): FSD************** |
(E) – 110 kW / 150 hp |
Nissan Leaf (ZE1) Radiator Cap – 0.9 bar FAQs
Which part numbers does it replace?
Replaces Nissan part numbers 21430-7999C, 21430-7996D and 21430-7999A. Febi and Blue Print part numbers are listed in the specifications.
When can I remove it?
Only when the cooling system is completely cold.
Does it fit the expansion tank?
No. This is the 0.9 bar radiator cap. The 1.4 bar expansion tank cap is Febi 22085, which we list separately.
Will it fit my Nissan Leaf?
Listed in the parts finder for the Nissan Leaf (ZE1, 2017 on) 110 kW and 160 kW. Some versions carry a note in the fitment table. Some versions are listed with a VIN-range note, shown word for word in the table; it is there for fitment information only. Check the notes in the fitment table and compare the Nissan part number on your existing part.
Is Febi the same as Blue Print?
Yes. Both are made by the bilstein group and they are the same part.
Is this a genuine Nissan part?
No. It is a quality replacement part made by the bilstein group to match the original in fit and function.






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