Hi can someone help me please. I need an oil seal for the filler cap where you put the oil in the engine, for the car. I am struggling to find the part number and where to get one from. Please if someone can let me know the quickest and best place I would be so grateful
thank you Chris
e type oil filler cap rubber seal 3.8 series 1 1963
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chrislaffey
Topic author - Posts: 1
- Joined: Wed Jul 24, 2024 7:26 pm

#2 Re: e type oil filler cap rubber seal 3.8 series 1 1963
David Jones
S1 OTS OSB
1997 Porsche 911 Guards Red
2026 Lexus LBX
Add your E-Type to our World Map: http://forum.etypeuk.com/viewtopic.php?f=1&t=1810
S1 OTS OSB
1997 Porsche 911 Guards Red
2026 Lexus LBX
Add your E-Type to our World Map: http://forum.etypeuk.com/viewtopic.php?f=1&t=1810
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#3 Re: e type oil filler cap rubber seal 3.8 series 1 1963
Oil filler cap seal 3.8...C419 in Jag parts catalogue and shown on sng as a fibre seal
https://www.sngbarratt.com/English/#/UK ... 202442559)
https://www.sngbarratt.com/English/#/UK ... 202442559)
Steve
69 S2 2+2 (sold) ..Realm C type replica, 1960 xk150fhc
69 S2 2+2 (sold) ..Realm C type replica, 1960 xk150fhc
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#4 Re: e type oil filler cap rubber seal 3.8 series 1 1963
Danny
1962 S1 3.8 FHC (1012/1798)
2015 Range Rover Sport SVR
"Experience is something you don't get until just after you need it."
1962 S1 3.8 FHC (1012/1798)
2015 Range Rover Sport SVR
"Experience is something you don't get until just after you need it."
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bitsobrits
- Posts: 595
- Joined: Tue Dec 27, 2011 2:09 am
- Location: Omaha, NE area

#5 Re: e type oil filler cap rubber seal 3.8 series 1 1963
I run an O ring on mine. Seals without fail and doesn’t require high torque to do so. Size is not critical, just needs to be thicker, on the order of 1/8”, and slightly smaller than the OD of the cap just another threads.
And if you are really fastidious, you can find a size which will allow for precise ‘clocking’ of the filler cap with the Jaguar name dead in line with the cam cover. :)
And if you are really fastidious, you can find a size which will allow for precise ‘clocking’ of the filler cap with the Jaguar name dead in line with the cam cover. :)
Steve
'65 S1 4.2 FHC (early)
'65 S1 4.2 FHC (early)
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#6 Re: e type oil filler cap rubber seal 3.8 series 1 1963
I fitted a Monza type cap on mine, precisely because of the torque needed to remove the screw cap, which my old hands could not achieve.
Jerome Lunt
1970 S2 FHC - Dark Blue, Red Interior, MX5 Seats
2008 MX-5 NC PRHT - now gone
1970 S2 FHC - Dark Blue, Red Interior, MX5 Seats
2008 MX-5 NC PRHT - now gone
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