Non Return Valves for Fuel, Coolant and Vacuum Systems

Protect your system from backflow with our range of non-return valves. This collection includes inline one-way valves for fuel lines, vacuum hoses, coolant pipes and breather systems. Available in metal and plastic bodies, with hose tail or threaded fittings.

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Latest Products

Smiths Classic Water Temperature Gauge - Magnolia Face - Chrome Bezel

Smiths Classic Water Temperature Gauge - Magnolia Face - Chrome Bezel

Monitor coolant temperature (50-140°C) with this classic Smiths 52mm electric gauge. Features magnolia dial, chrome bezel, and illumination.
£59.00
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£59.00
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Karcher Spray-extraction cleaner Puzzi 10/1 Upholstery Vacuum CleanerKarcher Spray-extraction cleaner Puzzi 10/1 Upholstery Vacuum Cleaner

Karcher Spray-extraction cleaner Puzzi 10/1 Upholstery Vacuum Cleaner

Professional carpet and upholstery cleaner for deep, hygienic results. The Kärcher Puzzi 10/1 offers powerful suction, fast drying, and reliable performance—perfect for vehicles, offices, and commercial cleaning.
£498.00
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£498.00
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Karcher Wet and dry vacuum cleaner NT 20/1 Me ClassicKarcher Wet and dry vacuum cleaner NT 20/1 Me Classic

Karcher Wet and dry vacuum cleaner NT 20/1 Me Classic

Compact and powerful wet & dry vacuum with a 20L stainless steel tank. Ideal for workshops, garages, and professional cleaning tasks.
£130.00
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Karcher HD 5/12 CX Plus 240v Pressure WasherKarcher HD 5/12 CX Plus 240v Pressure Washer

Karcher HD 5/12 CX Plus 240v Pressure Washer

Efficient and portable, the Kärcher HD 5/12 CX Plus is a compact high-pressure washer with hose reel, EASY!Force gun, and vertical/horizontal operation.
£778.80
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£778.80
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13 Piece 10 lb Slide Hammer / Dent Puller Kit13 Piece 10 lb Slide Hammer / Dent Puller Kit

13 Piece 10 lb Slide Hammer / Dent Puller Kit

13 Piece 10 lb slide hammer / dent puller kit
£43.20
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9 Piece 5 lb Slide Hammer / Dent Puller Kit9 Piece 5 lb Slide Hammer / Dent Puller Kit

9 Piece 5 lb Slide Hammer / Dent Puller Kit

9 Piece 5 lb slide hammer / dent puller kit
£15.60
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Smiths Pressure Transducer - Pressure Sender

Smiths Pressure Transducer - Pressure Sender

Genuine Smiths Smiths Oil pressure sender to suit Smiths Classic electrical gauges. Has 1/8NPT thread. This Smiths Classic Pressure sender measures 52mm diameter by 40mm in height (not including the thread or electrical connector).
£82.00
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£82.00
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Smiths Water Temperature Sender Unit

Smiths Water Temperature Sender Unit

Genuine Smith
£21.00
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£21.00
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Smiths Analogue Time Clock Black / Magnolia FaceSmiths Analogue Time Clock Black / Magnolia Face
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Smiths Analogue Time Clock Black / Magnolia Face

Add authentic Smiths heritage to your classic car with this elegant 52mm magnolia dial time clock (12V).
£107.00
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£107.00
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Smiths Classic Mechanical 52mm Oil Pressure Gauge 1/2 Round Chrome Bezel - Magnolia FaceSmiths Classic Mechanical 52mm Oil Pressure Gauge 1/2 Round Chrome Bezel - Magnolia Face

Smiths Classic Mechanical 52mm Oil Pressure Gauge 1/2 Round Chrome Bezel - Magnolia Face

Authentic Smiths Classic 52mm mechanical oil gauge with iconic magnolia dial, 70psi range, and chrome bezel for vintage dashboards.
£94.00
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£94.00
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Smiths Classic Mechanical 52mm Oil Pressure Gauge 1/2 Round Chrome Bezel - Black FaceSmiths Classic Mechanical 52mm Oil Pressure Gauge 1/2 Round Chrome Bezel - Black Face

Smiths Classic Mechanical 52mm Oil Pressure Gauge 1/2 Round Chrome Bezel - Black Face

Monitor engine vitals accurately with this authentic Smiths Classic 52mm mechanical oil pressure gauge featuring a 70psi range.
£94.00
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£94.00
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Smiths Classic 80mm Digital Tachometer – 1/2 Round Chrome Bezel - Black FaceSmiths Classic 80mm Digital Tachometer – 1/2 Round Chrome Bezel - Black Face

Smiths Classic 80mm Digital Tachometer – 1/2 Round Chrome Bezel - Black Face

Authentic Smiths classic style meets modern digital accuracy. This 80mm, 7,000 RPM tachometer features a chrome bezel and suits 4/6/8 cylinder engines.
£194.00
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£194.00
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Smiths Classic 80mm Tachometer - 1/2 Round Chrome Bezel - Magnolia FaceSmiths Classic 80mm Tachometer - 1/2 Round Chrome Bezel - Magnolia Face

Smiths Classic 80mm Tachometer - 1/2 Round Chrome Bezel - Magnolia Face

Experience timeless British style with the Smiths Classic 80mm Tachometer. Features adjustable settings, chrome bezel, and modern electronic accuracy for 12V systems.
£204.00
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£204.00
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Smiths Classic 52mm Electronic Tachometer - 1/2 Round Chrome Bezel - Magnolia FaceSmiths Classic 52mm Electronic Tachometer - 1/2 Round Chrome Bezel - Magnolia Face

Smiths Classic 52mm Electronic Tachometer - 1/2 Round Chrome Bezel - Magnolia Face

Classic Smiths 52mm electronic tachometer blends vintage looks with modern, adjustable accuracy for 4, 6, or 8-cylinder engines.
£177.00
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£177.00
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Smiths Classic 52mm Digital Tachometer – 1/2 Round Chrome Bezel - Black FaceSmiths Classic 52mm Digital Tachometer – 1/2 Round Chrome Bezel - Black Face

Smiths Classic 52mm Digital Tachometer – 1/2 Round Chrome Bezel - Black Face

Smiths Classic 52mm tachometer blends vintage style with modern digital accuracy. Features 8K RPM range, adjustable cylinders, and chrome bezel.
£177.00
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£177.00
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SMITHS Motorsport Telemetrix Water Temperature Gauge - 52mmSMITHS Motorsport Telemetrix Water Temperature Gauge - 52mm

SMITHS Motorsport Telemetrix Water Temperature Gauge - 52mm

Monitor your classic car's engine temp with this Smiths Telemetrix 52mm gauge. Features chrome bezel, 40-120°C scale, 12V compatibility.
£52.00
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Smiths Telemetrix Voltmeter – 52mm - Cirrus white dialSmiths Telemetrix Voltmeter – 52mm - Cirrus white dial

Smiths Telemetrix Voltmeter – 52mm - Cirrus white dial

Monitor your classic car's 12V system with this Smiths Telemetrix 52mm Voltmeter, featuring a timeless design with a chrome bezel.
£55.00
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£55.00
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Smiths Water Temperature Sender UnitSmiths Water Temperature Sender Unit
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Smiths Water Temperature Sender Unit

Genuine Smith water temperature sender unit featuring a 1/8" NPT male thread, compatible with Telemetrix, Flight, and International gauges.
£16.92
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£16.92
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Out Of Stock
Smiths Telemetrix Oil Temperature Gauge – 52mmSmiths Telemetrix Oil Temperature Gauge – 52mm

Smiths Telemetrix Oil Temperature Gauge – 52mm

Accurately monitor engine oil temperature with this classic Smiths Telemetrix 52mm gauge, featuring a timeless chrome bezel for vintage dashboards.
£52.00
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£52.00
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Smiths Telemetrix Oil Pressure Gauge – 52mm - Cirrus white dialSmiths Telemetrix Oil Pressure Gauge – 52mm - Cirrus white dial

Smiths Telemetrix Oil Pressure Gauge – 52mm - Cirrus white dial

Monitor engine health with the classic Smiths Telemetrix 52mm Oil Pressure Gauge (0-100psi), featuring a stylish polished chrome bezel.
£52.00
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£52.00
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Engine Oil

CASTROL EDGE 5W-40 Fully Synthetic Engine OilCASTROL EDGE 5W-40 Fully Synthetic Engine Oil
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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.
£13.96
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£13.96
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MOBIL Mobil 1 0W-20 Advanced Full Synthetic Engine OilMOBIL Mobil 1 0W-20 Advanced Full Synthetic 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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MOBIL Super 1000 X1 15W-40 Engine OilMOBIL Super 1000 X1 15W-40 Engine Oil
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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.
£7.96
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CASTROL EDGE 0W-30 A5/B5 Engine OilCASTROL EDGE 0W-30 A5/B5 Engine Oil
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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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MOBIL Super 2000 X1 10W-40 Engine OilMOBIL Super 2000 X1 10W-40 Engine Oil
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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.
£7.96
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CASTROL TRANSMAX LS LL 75W-140 Fully Synthetic Gear Oil - 1L

CASTROL TRANSMAX LS LL 75W-140 Fully Synthetic Gear Oil - 1L

High-performance 75W-140 gear oil for limited slip differentials. Reduces noise and vibration, approved for top vehicle brands.
£27.95
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£27.95
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CASTROL Transmax Manual FE 75W Gear Oil - 1L

CASTROL Transmax Manual FE 75W Gear Oil - 1L

High-performance 75W gear oil offering fuel economy, wear protection, and smooth shifting. Suitable for Ford, Volvo, and MB vehicles.
£19.96
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£19.96
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CASTROL Transmax ATF DX III MV Automatic Transmission Fluid - 1L

CASTROL Transmax ATF DX III MV Automatic Transmission Fluid - 1L

High-performance automatic transmission fluid. Wide compatibility, smooth shifting, and extended component life. 1L bottle.
£12.95
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£12.95
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  • Aluminium Non Return Valve 8mm - Car Builder SolutionsAluminium Non Return Valve 8mm - Car Builder Solutions

    Aluminium Non Return Valve 8mm

    8mm aluminium non-return valve for fuel and vacuum systems. Durable, easy to install, ensures efficient one-way flow.
    £9.60
    £0.00
    £9.60
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  • Aluminium Non Return Valve 10mm - Car Builder Solutions

    Aluminium Non Return Valve 10mm

    Ideal for Brake servo or Fuel leak back.
    £9.60
    £0.00
    £9.60
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  • 8mm Black Aluminium Non Return Valve - Car Builder Solutions

    8mm Black Aluminium Non Return Valve

    Ideal for brake servo or fuel leak back.
    £18.00
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  • Aluminium Non Return Valve 6mm - Car Builder SolutionsAluminium Non Return Valve 6mm - Car Builder Solutions

    Aluminium Non Return Valve 6mm

    A durable, 6mm aluminium non-return valve suitable for fuel, vacuum, and various other applications.
    £9.60
    £0.00
    £9.60
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  • Aluminium Non Return Valve 14mm - Car Builder Solutions

    Aluminium Non Return Valve 14mm

    Durable 14mm aluminium non-return valve for fuel, vacuum, and other fluids. Easy installation, reliable performance.
    £9.60
    £0.00
    £9.60
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  • Aluminium Non Return Valve 12mm - Car Builder Solutions

    Aluminium Non Return Valve 12mm

    A durable 12mm aluminium non-return valve suitable for fuel, vacuum and more. Prevents backflow, easy to install.
    £9.60
    £0.00
    £9.60
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