Original Ariel Square Four oil tank 1949-55 Mk1 & Mk2 Sq4 with oil filter – SOLD

Original Ariel Square Four oil tank 1949-55 Mk1 & Mk2 Sq4 with oil filter – SOLD


Off to Czech Rep

Original Ariel Square Four oil tank.

I understand that these are not currently being reproduced. I have put it at a sensible fixed price.

I believe this Ariel Square Four tank is for the following years:

  • 1949 – 1952 Mk1 Ariel Sq 4.
  • 1953 – 1955 Mk2 Ariel Sq 4.

From what I can see there are no cracks and no welds / extra brazing.

The top and bottom brackets are good. The breather tower and oil return look fine too.

The threads look OK.

It has a ding in one panel. It’s the forward leading panel as fitted on the bike. It’s shallow and might even push out.

Inside, it’s oily but will need flushing out.

Bottom line, It’s a used Ariel Sq4 oil tank that could do with a rub-down and repaint but it’s a perfectly usable part.

Other Ariel parts: I have some. Please have a browse through my parts or get in touch.




  • International shipping available. Please ask.
  • Combined shipping available if you buy other parts. 
  • I usually ship to most destinations. If you don’t see a price, please ask. Shipping is in addition to the listed price for the item.

Viewing: Please come and check it over before you buy. It is at PE28, near St Ives in Cambridgeshire.

Collection: If you don’t want it shipped, I have plenty of space. If you can’t collect for a while, it’s not a problem. However, I will need to be paid very soon after the sale. Thanks.

Payment: This site has a facility to pay online. Good old fashioned money on collection is preferred. I can accept payment through PayPal or by bank transfer as well.

Import Taxes: Please note that IMPORT DUTIES are not something I can control. If you are buying from outside the UK, there is a chance that you will have to pay import taxes. Import taxes vary from country to country. If there are charges to pay, it is the buyer’s responsibility to research the cost and pay the duties. The price that you see on my advert is for the item and not the item plus whatever taxes might be due.







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