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Code: MF3155 Fill Point & Vent Equipment

Brass Fuel Tank Filler Cap

£12.42

Inc. VAT: £14.90

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The Brass Fuel Tank Filler Cap is a hardwearing option designed to cap off the fill point of a fuel storage tank or valve. A tank needs a fill point cap to prevent dripping and stop unwanted debris and rain water from entering into the tank. Whilst popular as a diesel or oil tank cap, this brass model can be used for a variety of applications providing that the fluid is compatible. The brass fuel tank filler cap comes with lugs either side of the cap to enable easily application and removal by hand, as well as a sealing washer.

A range of sizes are available - see measuring guide download if you are unsure which size you need.

Features of the Brass Oil Tank Fill Cap:

Brass constructed tank cap
Brass chain & 'S' ring
Two large lugs for easy application
Sealing washer
Various sizes available

4.0

12 Reviews

5★

4★

3★

2★

1★

James H.

Verified Buyer • 12 Mar 2026

Excellent product — exactly as described.

Used this on a JCB 3CX turbo downpipe. Fits perfectly, holds up very well to heat cycles. Much better than the fibreglass wrap I used previously — no itching, easier to handle. Will definitely be ordering again.

Mark T.

Verified Buyer • 28 Feb 2026

Great value, fast delivery.

Good quality wrap for the price. Arrived next day which was great. The 50mm width covered my headers nicely with a bit of overlap. Holds up well after a few heat cycles.

S. Patel

Verified Buyer • 14 Jan 2026

Decent product, application tricky without soaking first.

Wrap itself is good quality but I'd strongly advise soaking in water for 10–15 mins before wrapping — it makes it much more pliable and easier to apply. Didn't do this first time and it was frustrating. Product is fine though, no complaints.

Available Options

MF3161

1 1/2" BSP Brass Screw Fuel Tank Filler Cap

£13.66

Inc. VAT: £16.39

Body - Brass Seal - Leather Chain - Brass 1 1/2" F BSP

MF3155

1" BSP Brass Screw Fuel Tank Filler Cap

£12.42

Inc. VAT: £14.90

Body - Brass Seal - Rubber Chain - Brass 1" F BSP

MF3163

2 1/2" BSP Brass Screw Fuel Tank Filler Cap

£29.56

Inc. VAT: £35.47

Body - Brass Seal - Leather Chain - Brass 2 1/2" F BSP

MF3162

2" BSP Brass Screw Fuel Tank Filler Cap

£11.43

Inc. VAT: £13.72

Body - Brass Seal - Paper Chain - Brass 2" F BSP

MF3164

3" BSP Brass Screw Fuel Tank Filler Cap

£25.79

Inc. VAT: £30.95

Body - Brass Seal - Leather Chain - Brass 3" F BSP

Code	Name	Description	Price
MF3161	1 1/2" BSP Brass Screw Fuel Tank Filler Cap	Body - Brass Seal - Leather Chain - Brass 1 1/2" F BSP	£13.66 Inc. VAT: £16.39
MF3155	1" BSP Brass Screw Fuel Tank Filler Cap	Body - Brass Seal - Rubber Chain - Brass 1" F BSP	£12.42 Inc. VAT: £14.90
MF3163	2 1/2" BSP Brass Screw Fuel Tank Filler Cap	Body - Brass Seal - Leather Chain - Brass 2 1/2" F BSP	£29.56 Inc. VAT: £35.47
MF3162	2" BSP Brass Screw Fuel Tank Filler Cap	Body - Brass Seal - Paper Chain - Brass 2" F BSP	£11.43 Inc. VAT: £13.72
MF3164	3" BSP Brass Screw Fuel Tank Filler Cap	Body - Brass Seal - Leather Chain - Brass 3" F BSP	£25.79 Inc. VAT: £30.95

Brass Fuel Tank Filler Cap

Features of the Brass Oil Tank Fill Cap:

Available Options

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