7 Series New Unused Expansion Tank Cap

[214299]

Hi,

Coolant expansion tank cap for any 7 series Volvo.

New and unused £6 includes postage to anywhere in the U.K.

Email keith_hegarty@yahoo.com

(That’s keith underscore hegarty)

Thanks.

[940volvoman]

Is the cap only for the 7 series??

[J liddy]

Can you post a photo

[360beast]

Originally Posted by 940volvoman

Is the cap only for the 7 series??

They fit the 900 as well, they do a grey or green one. The green one holds a higher pressure I believe and superseded the grey one.

[griston64]

Reservoir Cap. [Editor] Symptoms of Failure. Your reservoir cap can fail. Usual symptoms include hot coolant leaking out of the cap or collapsed hoses due to the cap's inability to relieve vacuum in the system when it cools. Replacement Caps. [Dave Stevens] The coolant expansion tank caps used are as follows:

grey = 150 kPa (22 psi) superceded by the green cap
green = 150 kPa (22 psi) standard issue for all 700/900s
white = 100 kPa (15 psi) uncommon
black = 75 kPa (11 psi) standard issue for 140/240s
It's always best to use genuine Volvo or at least a reputable OEM brand. The green caps provide for optimal engine operating conditions in 700/900s. Some people believe the lower pressure (240) black cap doesn't stress the plastic sides and fittings of the rad tank as much, especially in a hot turbo engine compartment and especially as the rad ages. With that thinking in mind I've decided the trade off is worth it and use a black cap in my turbo, but have kept the green cap in my NA. Remember that the higher pressure caps prevent system boilover in high temperatures and allow higher engine operating temperatures, important for good fuel economy.

[Arthur1330]

Originally Posted by griston64

Reservoir Cap. [Editor] Symptoms of Failure. Your reservoir cap can fail. Usual symptoms include hot coolant leaking out of the cap or collapsed hoses due to the cap's inability to relieve vacuum in the system when it cools. Replacement Caps. [Dave Stevens] The coolant expansion tank caps used are as follows:

grey = 150 kPa (22 psi) superceded by the green cap
green = 150 kPa (22 psi) standard issue for all 700/900s
white = 100 kPa (15 psi) uncommon
black = 75 kPa (11 psi) standard issue for 140/240s
It's always best to use genuine Volvo or at least a reputable OEM brand. The green caps provide for optimal engine operating conditions in 700/900s. Some people believe the lower pressure (240) black cap doesn't stress the plastic sides and fittings of the rad tank as much, especially in a hot turbo engine compartment and especially as the rad ages. With that thinking in mind I've decided the trade off is worth it and use a black cap in my turbo, but have kept the green cap in my NA. Remember that the higher pressure caps prevent system boilover in high temperatures and allow higher engine operating temperatures, important for good fuel economy.

I've also been using a black one for those exact reasons (A Febi Bilstein one), and it's been fine for 2+ years!

[940volvoman]

My earlier question was,then which one is for sale here?

At 23/4 years old a replacement is overdue,to compliment my new reservoir and level guard

[214299]

This is a green one.