Fuel Caps and Locking Fillers for Tanks and Necks

Secure your fuel system with our range of filler caps and locking fuel lids. This collection includes vented and non-vented caps, screw-on and bayonet styles, race-style billet caps and flush-mount locking fillers — ideal for restorations, custom builds and fuel tank upgrades.

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Instrument Voltage Stabiliser
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Instrument Voltage Stabiliser

Instrument Voltage Stabiliser
£24.00
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Electric Vacuum Pump Relay
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Electric Vacuum Pump Relay

12 volts.
£9.60
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Classic Style Paper Covered Aluminium Ducting 80mm I.D. - Car Builder SolutionsClassic Style Paper Covered Aluminium Ducting 30-100mm
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Classic Style Paper Covered Aluminium Ducting 30-100mm

SOLD BY THE METRE
£8.40
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G Clamps 50mm to 200mmG Clamps 50mm to 200mm
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G Clamps 50mm to 200mm

G Clamps
£4.20
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Single Relay Plug with Terminals

Single Relay Plug with Terminals

Durable 5-terminal relay plug with 1/4" female crimp terminals for secure connections in automotive/electrical applications. Easy installation, reliable performance.
£3.00
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Brake and Clutch Reservoir Bleeding Adapter

Brake and Clutch Reservoir Bleeding Adapter

RESERVOIR BLEEDING ADAPTER
£19.20
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£19.20
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3 Piece Locking Clamping Pliers Set For Flexible Hoses3 Piece Locking Clamping Pliers Set For Flexible Hoses

3 Piece Locking Clamping Pliers Set For Flexible Hoses

Will clamp between 6mm and 57mm hose.
£7.20
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3 Watt LED White/Red Rechargeable Headband Lamp

3 Watt LED White/Red Rechargeable Headband Lamp

USB charging cable included Up to 3 hours battery life
£7.80
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Demist Vent 87mm x 14mmDemist Vent 87mm x 14mm

Demist Vent 87mm x 14mm

ABS demist vent, 87mm x 14mm, fits 71mm x 8mm hole. Ideal for boats and caravans. Clears condensation.
£6.00
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Silver Chrome Paint AerosolSilver Chrome Paint Aerosol

Silver Chrome Paint Aerosol

This plated finish paint aerosol delivers a brilliant, very shiny silver finish. Easy to apply and perfect for various projects.
£13.20
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Large Internal Naca Duct Black 270mmLarge Internal Naca Duct Black 270mm

Large Internal Naca Duct Black 270mm

Can be bonded or riveted to body.
£19.20
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£19.20
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Naca Duct Internal Carbon Effect Small

Naca Duct Internal Carbon Effect Small

Can be bonded or riveted to body. 180mm x 145mm x 25mm high
£14.40
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£14.40
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Naca Duct Internal Carbon Effect Large

Naca Duct Internal Carbon Effect Large

Can be bonded or riveted to body. 235mm x 190mm x 45mm high.
£16.80
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£16.80
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360mm LED Interior Strip Light360mm LED Interior Strip Light

360mm LED Interior Strip Light

Overall size. 30mm x 23mm x 11mm high.
£30.00
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£30.00
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440 Amp Jump Start Posts

440 Amp Jump Start Posts

SOLD AS A PAIR
£24.00
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£24.00
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Fuel Tank Pick Up Pipes
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Fuel Tank Pick Up Pipes

Fuel tank pick up pipes
£24.00
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Smiths GPS Speed Sensor for Electronic SpeedometersSmiths GPS Speed Sensor for Electronic Speedometers

Smiths GPS Speed Sensor for Electronic Speedometers

Smiths GPS Speed Sensor for Electronic Speedometers
£162.00
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Smiths Inductive Speed Sensor for Electronic SpeedometersSmiths Inductive Speed Sensor for Electronic Speedometers

Smiths Inductive Speed Sensor for Electronic Speedometers

Smiths Inductive Speed Sensor for Electronic Speedometers
£86.40
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Copper Brake Pipe 22G 25Ft Roll

Copper Brake Pipe 22G 25Ft Roll

High-quality copper/nickel brake pipe in 3/16". Rated to 215 Bar, ensuring reliable braking performance.
£15.00
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Copper/Nickel Brake Pipe 22G 25Ft Roll

Copper/Nickel Brake Pipe 22G 25Ft Roll

High-quality copper/nickel brake pipe in 3/16". Rated to 215 Bar, ensuring reliable braking performance.
£21.60
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£21.60
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Engine Oil

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MOBIL Mobil 1 0W-20 Advanced Full Synthetic Engine Oil

Advanced full synthetic 0W20 motor oil. Optimised for fuel economy and long-lasting engine protection in hybrid vehicles.
£13.96
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CASTROL EDGE 0W-30 A5/B5 Engine Oil

Advanced 0W-30 motor oil boosts engine performance and fuel economy. Trusted by experts for ultimate protection and efficiency.
£13.96
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CASTROL EDGE 5W-40 Fully Synthetic Engine Oil

Advanced full synthetic engine oil for maximum performance and protection. Improves fuel economy and exceeds industry standards.
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MOBIL Super 1000 X1 15W-40 Engine Oil

High-performance 15W40 motor oil. Provides excellent engine cleanliness, high-temperature protection, and wear protection. Suitable for various vehicles.
£33.95
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CASTROL Magnatec 10W-40 A/B Engine Oil

Advanced engine oil with DUALOCK molecules for non-stop protection and reduced warm-up wear. ACEA A3/B4, API SP.
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MOBIL Super 2000 X1 10W-40 Engine Oil

High-performance 10W40 motor oil offering superior engine protection, sludge prevention, and cleanliness. Meets various industry standards.
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CASTROL Magnatec 5W-30 A5 Engine Oil

Advanced engine oil with DUALOCK technology for superior protection during warm-up and stop-start driving. Suitable for modern vehicles.
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CASTROL GTX 5W-30 RN17 Engine Oil

5W-30 RN17 engine oil. Superior sludge protection and advanced viscosity and thermal breakdown protection. Extends engine life.
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  • 57mm Filler Hose Locking Filler Cap - Car Builder Solutions57mm Filler Hose Locking Filler Cap - Car Builder Solutions

    57mm Filler Hose Locking Filler Cap

    Secure your fuel with this 57mm locking cap. Easy to install and made from durable CNC-machined aluminium. Comes with two keys.
    £115.20
    £0.00
    £115.20
    (-0%)
  • Aston Finishing Cap - Car Builder SolutionsAston Finishing Cap - Car Builder Solutions

    Aston Finishing Cap

    Fits over a 61mm dia pipe.
    £31.20
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    £31.20
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  • 2-12-polished-alloy-monza-cap-car-builder-solutions2-12-polished-alloy-monza-cap-car-builder-solutions

    2 1/2" Polished Alloy Monza Cap

    Classic polished alloy Monza fuel cap. Vented design with fibre sealing washers. 2 1/2" 16tpi thread. Made in the UK.
    £108.00
    £0.00
    £108.00
    (-0%)
  • 2 1/2" Polished Alloy Aston Cap - Car Builder Solutions2 1/2" Polished Alloy Aston Cap - Car Builder Solutions

    2 1/2" Polished Alloy Aston Cap

    Satin anodised alloy cap with chromed catch.
    £108.00
    £0.00
    £108.00
    (-0%)
  • 2 1/2" 16tpi Modern Classic Fuel Cap Polished Alloy - Car Builder Solutions2 1/2" 16tpi Modern Classic Fuel Cap Polished Alloy - Car Builder Solutions

    2 1/2" 16tpi Modern Classic Fuel Cap Polished Alloy

    High-quality, polished alloy fuel cap with a 2 1/2" internal thread, hidden release catch, and IVA approval.
    £114.00
    £0.00
    £114.00
    (-0%)
  • 2 1/2" 16tpi Modern Classic Fuel Cap Chromed Brass - Car Builder Solutions2 1/2" 16tpi Modern Classic Fuel Cap Chromed Brass - Car Builder Solutions

    2 1/2" 16tpi Modern Classic Fuel Cap Chromed Brass

    Classic chromed brass fuel cap. 2 1/2" internal thread (16tpi). Hidden sprung release. IVA approved. Made in the UK.
    £114.00
    £0.00
    £114.00
    (-0%)
  • 2 1/2" 16TPI One Piece Neck / Flange - Car Builder Solutions2 1/2" 16TPI One Piece Neck / Flange - Car Builder Solutions

    2 1/2" 16TPI One Piece Neck / Flange

    Durable anodised aluminium filler neck for Aston caps. 2 1/2" thread, 2" hose outlet. Includes gasket and fixings.
    £62.40
    £0.00
    £62.40
    (-0%)
  • 2 1/2" 16TPI Anodised Aluminium Mounting Flange - Car Builder Solutions2 1/2" 16TPI Anodised Aluminium Mounting Flange - Car Builder Solutions

    2 1/2" 16TPI Anodised Aluminium Mounting Flange

    Durable 2 1/2" anodised aluminium mounting flange with 16TPI thread, 94mm diameter, 76mm PCD, and 55mm ID. Ideal for secure mounting applications.
    £30.00
    £0.00
    £30.00
    (-0%)
  • 2 1/2" 16TPI Chromed Brass Mounting Flange - Car Builder Solutions2 1/2" 16TPI Chromed Brass Mounting Flange - Car Builder Solutions

    2 1/2" 16TPI Chromed Brass Mounting Flange

    Secure your chromed brass aston cap with this durable 2 1/2" mounting flange. Easy installation and elegant design.
    £26.40
    £0.00
    £26.40
    (-0%)
  • 2 3/4" 16TPI Modern Classic Cap Assembly - Car Builder Solutions2 3/4" 16TPI Modern Classic Cap Assembly - Car Builder Solutions

    2 3/4" 16TPI Modern Classic Cap Assembly

    UK-made chrome brass cap assembly with 2¾" 16tpi internal thread. Vented design and hidden sprung release catch. Suits 2¾" 16tpi flanges.
    £106.80
    £0.00
    £106.80
    (-0%)
  • 2 3/4" Chromed Brass Aston Cap With Roller Catch - Car Builder Solutions2 3/4" Chromed Brass Aston Cap With Roller Catch - Car Builder Solutions

    2 3/4" Chromed Brass Aston Cap With Roller Catch

    116mm x 85mm x 41mm high. 2¾" BSP thread.
    £126.00
    £0.00
    £126.00
    (-0%)
  • 2 3/4" 16TPI One Piece Neck / Flange - Car Builder Solutions2 3/4" 16TPI One Piece Neck / Flange - Car Builder Solutions

    2 3/4" 16TPI One Piece Neck / Flange

    Durable anodised aluminium filler neck for 2 3/4" Aston caps, with 16TPI thread and 2" hose outlet. Includes fixings and gasket.
    £66.00
    £0.00
    £66.00
    (-0%)
  • 2 3/4" 16TPI Anodised Aluminium Mounting Flange - Car Builder Solutions2 3/4" 16TPI Anodised Aluminium Mounting Flange - Car Builder Solutions

    2 3/4" 16TPI Anodised Aluminium Mounting Flange

    A durable, anodised aluminium mounting flange with precise dimensions for secure and versatile applications.
    £38.40
    £0.00
    £38.40
    (-0%)
  • 2-34-16tpi-chromed-brass-mounting-flange-car-builder-solutions2-34-16tpi-chromed-brass-mounting-flange-car-builder-solutions

    2 3/4" 16TPI Chromed Alloy Mounting Flange

    Durable chromed alloy mounting flange for secure fuel cap installation. Includes fixings and fibre gasket for a tight seal.
    £43.20
    £0.00
    £43.20
    (-0%)
  • 3 1/2" BSP Vented Polished Alloy Screw On Fuel Cap With Tether - Car Builder Solutions3 1/2" BSP Vented Polished Alloy Screw On Fuel Cap With Tether - Car Builder Solutions

    3 1/2" BSP Vented Polished Alloy Screw On Fuel Cap With Tether

    IVA OK
    £174.00
    £0.00
    £174.00
    (-0%)
  • 3 1/2" BSP Aston Polished Alloy Roller Catch Fuel Cap - Car Builder Solutions3 1/2" BSP Aston Polished Alloy Roller Catch Fuel Cap - Car Builder Solutions

    3 1/2" BSP Aston Polished Alloy Roller Catch Fuel Cap

    Durable polished alloy fuel cap, 3 1/2" BSP thread, sprung roller catch, and O-ring seal, ensuring a secure and leak-proof closure.
    £270.00
    £0.00
    £270.00
    (-0%)
  • 3 1/2" BSP Aston Polished Alloy Fuel Cap Kit - Car Builder Solutions3 1/2" BSP Aston Polished Alloy Fuel Cap Kit - Car Builder Solutions

    3 1/2" BSP Aston Polished Alloy Fuel Cap Kit

    51mm (2") Spigot.
    £366.00
    £0.00
    £366.00
    (-0%)
  • 3 1/2" BSP Aston Neck - Car Builder Solutions3 1/2" BSP Aston Neck - Car Builder Solutions

    3 1/2" BSP Aston Neck

    Anodised aluminium Aston Neck for 3½" BSP caps. 125mm flange, 51mm hose outlet. Includes fixings & gasket.
    £70.80
    £0.00
    £70.80
    (-0%)
  • 3 1/2" 11TPI Anodised Aluminium Mounting Flange - Car Builder Solutions

    3 1/2" 11TPI Anodised Aluminium Mounting Flange

    Durable 3 1/2" anodised aluminium mounting flange with 11 TPI BSP thread, cork gasket, and stainless fixings for secure and reliable mounting.
    £43.20
    £0.00
    £43.20
    (-0%)
  • 44mm Diameter Screw On Cap and Flange - Car Builder Solutions44mm Diameter Screw On Cap and Flange - Car Builder Solutions

    44mm Diameter Screw On Cap and Flange

    Durable aluminium cap with 'O' ring seal and weld-on flange. Ideal for oil, fuel, and water. 44mm diameter, 25mm ID.
    £36.00
    £0.00
    £36.00
    (-0%)
  • 57mm Diameter Screw On Cap and Flange - Car Builder Solutions57mm Diameter Screw On Cap and Flange - Car Builder Solutions

    57mm Diameter Screw On Cap and Flange

    A durable, leak-proof 57mm aluminium screw-on cap and flange suitable for oil, fuel, and water applications.
    £40.80
    £0.00
    £40.80
    (-0%)
  • 70mm Diameter Screw On Cap and Flange - Car Builder Solutions70mm Diameter Screw On Cap and Flange - Car Builder Solutions

    70mm Diameter Screw On Cap and Flange

    Durable aluminium cap and flange with 'O' ring seal. Ideal for oil, fuel, and water applications. Easy installation with weld-on flange.
    £48.00
    £0.00
    £48.00
    (-0%)
  • Weld-In Filler Neck 41mm - Car Builder SolutionsWeld-In Filler Neck 41mm - Car Builder Solutions

    Weld-In Filler Neck 41mm

    Durable, CNC machined aluminium filler neck. 41mm diameter, 53mm height. Knurled cap with rubber seal. 1 3/4" BSP thread.
    £16.80
    £0.00
    £16.80
    (-0%)
  • Weld-In Filler Neck 51mmWeld-In Filler Neck 51mm

    Weld-In Filler Neck 51mm

    Durable, CNC machined aluminium filler neck. 51mm diameter, 83mm height. Knurled cap with rubber seal.
    £19.20
    £0.00
    £19.20
    (-0%)
  • Weld-In Filler Neck 51mm - Car Builder SolutionsWeld-In Filler Neck 51mm - Car Builder Solutions

    Weld-In Filler Neck 51mm

    Durable aluminium weld-in filler neck. 51mm diameter, 80mm height. Knurled cap with seal. 2" UNF thread.
    £19.20
    £0.00
    £19.20
    (-0%)

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