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MD3B Diesel Engine

Manufactured between the years of 1971 - 1975


Engine

35hp (26kW)@2500rpm


  • Oil Filter - Replacement
    List Price
    £13.20 Ex VAT
    £15.84 Inc VAT
    Keypart Price
    £9.24 Ex VAT
    £11.09 Inc VAT
    Low Stock

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  • Oil Filter - Genuine
    List Price
    £13.20 Ex VAT
    £15.84 Inc VAT
    Keypart Price
    £11.88 Ex VAT
    £14.26 Inc VAT
    In Stock

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  • Oil Filler Cap Seal Ring
    List Price
    £1.70 Ex VAT
    £2.04 Inc VAT
    Keypart Price
    £1.53 Ex VAT
    £1.84 Inc VAT
    In Stock

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  • Rocker Cover Gasket - (3 Required per Engine)
    List Price
    £6.90 Ex VAT
    £8.28 Inc VAT
    Keypart Price
    £5.52 Ex VAT
    £6.62 Inc VAT
    Low Stock

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  • Exhaust Manifold to Head Gasket - (3 Required per Engine)
    List Price
    £17.60 Ex VAT
    £21.12 Inc VAT
    Keypart Price
    £14.08 Ex VAT
    £16.90 Inc VAT
    In Stock

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  • Exhaust Manifold to Elbow Gasket
    List Price
    £9.40 Ex VAT
    £11.28 Inc VAT
    Keypart Price
    £6.58 Ex VAT
    £7.90 Inc VAT
    In Stock

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  • Push-rod - Genuine - (6 Required per Engine)
    List Price
    £65.90 Ex VAT
    £79.08 Inc VAT
    Keypart Price
    £59.31 Ex VAT
    £71.17 Inc VAT
    Please Contact for Stock Status

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  • Valve Lifter - Genuine - (6 Required per Engine)
    List Price
    £90.90 Ex VAT
    £109.08 Inc VAT
    Keypart Price
    £81.81 Ex VAT
    £98.17 Inc VAT
    Special Order Usually 3 - 5 Days

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  • Valve Spring - Genuine - (6 Required per Engine)
    List Price
    £21.50 Ex VAT
    £25.80 Inc VAT
    Keypart Price
    £19.35 Ex VAT
    £23.22 Inc VAT
    In Stock

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  • Piston Ring Kit - Std (1 Required per Piston)
    List Price
    £69.40 Ex VAT
    £83.28 Inc VAT
    Keypart Price
    £55.52 Ex VAT
    £66.62 Inc VAT
    In Stock

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  • 0.2 mm Shim - Cylinder Block Base
    List Price
    £19.70 Ex VAT
    £23.64 Inc VAT
    Keypart Price
    £15.76 Ex VAT
    £18.91 Inc VAT
    In Stock

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  • 0.3 mm Shim - Cylinder Block Base
    List Price
    £22.30 Ex VAT
    £26.76 Inc VAT
    Keypart Price
    £17.84 Ex VAT
    £21.41 Inc VAT
    In Stock

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  • Intake Valve - (3 per engine)
    List Price
    £75.00 Ex VAT
    £90.00 Inc VAT
    Keypart Price
    £45.00 Ex VAT
    £54.00 Inc VAT
    In Stock

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  • Exhaust Valve - (3 per engine)
    List Price
    £127.00 Ex VAT
    £152.40 Inc VAT
    Keypart Price
    £65.00 Ex VAT
    £78.00 Inc VAT
    In Stock

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** SPECIAL OFFER **


Lubricants

Engine oil capacity is approximately 5.75 Litres


  • VDS-3 15W/40 Volvo Engine Oil 1-Litre - Genuine (Not available to customers outside the UK) - (May be mixed with VDS-4)
    List Price
    £8.50 Ex VAT
    £10.20 Inc VAT
    Keypart Price
    £7.65 Ex VAT
    £9.18 Inc VAT
    In Stock

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  • Oil Change Pump Kit (Universal)
    List Price
    £75.00 Ex VAT
    £90.00 Inc VAT
    Keypart Price
    £63.00 Ex VAT
    £75.60 Inc VAT
    In Stock

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  • VDS-4.5 15W/40 High-performance Volvo Engine Oil 5-Litre - Genuine (Not available to customers outside the UK) - (may be mixed with VDS-3)
    Keypart Price
    £33.50 Ex VAT
    £40.20 Inc VAT
    In Stock

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  • VDS-4.5 15W/40 High-performance Volvo Engine Oil 20-Litre - Genuine (Not available to customers outside the UK) - (may be mixed with VDS-3)
    List Price
    £115.00 Ex VAT
    £138.00 Inc VAT
    Keypart Price
    £92.00 Ex VAT
    £110.40 Inc VAT
    In Stock

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Cooling System


  • Drain Tap
    List Price
    £35.20 Ex VAT
    £42.24 Inc VAT
    Keypart Price
    £28.16 Ex VAT
    £33.79 Inc VAT
    In Stock

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  • Thermostat Kit -
    List Price
    £52.10 Ex VAT
    £62.52 Inc VAT
    Keypart Price
    £46.89 Ex VAT
    £56.27 Inc VAT
    In Stock

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  • Seawater Pump Assembly - (may require additional items when replacing early Pump)
    List Price
    £353.00 Ex VAT
    £423.60 Inc VAT
    Keypart Price
    £176.50 Ex VAT
    £211.80 Inc VAT
    In Stock

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  • O-ring - Thermostat Housing to Manifold
    Keypart Price
    £0.49 Ex VAT
    £0.59 Inc VAT
    In Stock

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  • O-ring - Seawater Pump to Block
    List Price
    £3.10 Ex VAT
    £3.72 Inc VAT
    Keypart Price
    £2.48 Ex VAT
    £2.98 Inc VAT
    In Stock

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  • Impeller Kit - Replacement
    List Price
    £30.70 Ex VAT
    £36.84 Inc VAT
    Keypart Price
    £21.49 Ex VAT
    £25.79 Inc VAT
    In Stock

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  • Impeller Kit - Genuine
    List Price
    £30.70 Ex VAT
    £36.84 Inc VAT
    Keypart Price
    £27.63 Ex VAT
    £33.16 Inc VAT
    In Stock

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  • Seawater Pump Cover Screw
    Keypart Price
    £1.20 Ex VAT
    £1.44 Inc VAT
    In Stock

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  • Seawater Pump Drive Coupling
    List Price
    £9.60 Ex VAT
    £11.52 Inc VAT
    Keypart Price
    £7.68 Ex VAT
    £9.22 Inc VAT
    In Stock

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  • S/S Water Injection Elbow - Fixed Flange Type - Replacement
    List Price
    £185.00 Ex VAT
    £222.00 Inc VAT
    Keypart Price
    £148.00 Ex VAT
    £177.60 Inc VAT
    In Stock

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  • Exhaust Elbow Fixed Flange Type - Genuine
    List Price
    £128.00 Ex VAT
    £153.60 Inc VAT
    Keypart Price
    £115.20 Ex VAT
    £138.24 Inc VAT
    Low Stock

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  • Exhaust Manifold to Elbow Gasket
    List Price
    £9.40 Ex VAT
    £11.28 Inc VAT
    Keypart Price
    £6.58 Ex VAT
    £7.90 Inc VAT
    In Stock

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  • Water Pipe to Exhaust Elbow Gasket
    List Price
    £3.10 Ex VAT
    £3.72 Inc VAT
    Keypart Price
    £2.79 Ex VAT
    £3.35 Inc VAT
    In Stock

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  • Rubber Water Hose 15.9mm ID (5/8") - Order per metre
    List Price
    £14.40 Ex VAT
    £17.28 Inc VAT
    Keypart Price
    £12.96 Ex VAT
    £15.55 Inc VAT
    In Stock

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Fuel System (Engine)


  • Fuel Filter Insert - Replacement
    List Price
    £37.60 Ex VAT
    £45.12 Inc VAT
    Keypart Price
    £26.32 Ex VAT
    £31.58 Inc VAT
    In Stock

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  • Fuel Filter Insert - Genuine
    List Price
    £37.60 Ex VAT
    £45.12 Inc VAT
    Keypart Price
    £33.84 Ex VAT
    £40.61 Inc VAT
    Low Stock

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  • Seal Ring for Fuel Filter Housing
    List Price
    £5.00 Ex VAT
    £6.00 Inc VAT
    Keypart Price
    £4.00 Ex VAT
    £4.80 Inc VAT
    In Stock

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  • Fuel Pump (Sealed type)
    List Price
    £135.00 Ex VAT
    £162.00 Inc VAT
    Keypart Price
    £101.25 Ex VAT
    £121.50 Inc VAT
    In Stock

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  • Fuel Hose - 260mm long (May be required when fitting Sealed Pump) - Genuine
    List Price
    £61.60 Ex VAT
    £73.92 Inc VAT
    Keypart Price
    £55.44 Ex VAT
    £66.53 Inc VAT
    In Stock

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  • Flexible Fuel Hose - Suction to Fuel Feed Pump - 500mm
    List Price
    £216.00 Ex VAT
    £259.20 Inc VAT
    Keypart Price
    £194.40 Ex VAT
    £233.28 Inc VAT
    Special Order Usually 3 - 5 Days

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  • O-ring - Lift Pump to Block
    List Price
    £2.70 Ex VAT
    £3.24 Inc VAT
    Keypart Price
    £2.16 Ex VAT
    £2.59 Inc VAT
    Low Stock

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Optional Fuel System Components

For additional types of Fuel Filters & Elements, please visit the Racor & Separ sections of our Website. These can be found under the "Accessories" heading on our Home Page.


  • CAV/Delphi 296 Fuel Filter Assembly
    List Price
    £136.00 Ex VAT
    £163.20 Inc VAT
    Keypart Price
    £55.00 Ex VAT
    £66.00 Inc VAT
    Please Contact for Stock Status

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  • Fuel Filter for CAV/Delphi 296 Pre-filter (Optional) - Replacement
    List Price
    £8.20 Ex VAT
    £9.84 Inc VAT
    Keypart Price
    £5.74 Ex VAT
    £6.89 Inc VAT
    In Stock

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  • Fuel Filter for CAV/Delphi 296 Pre-filter - Genuine
    List Price
    £8.20 Ex VAT
    £9.84 Inc VAT
    Keypart Price
    £7.38 Ex VAT
    £8.86 Inc VAT
    In Stock

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Electrical System


  • 12V/2W Panel Light Bulb - White Bayonet Type - Genuine
    Keypart Price
    £1.40 Ex VAT
    £1.68 Inc VAT
    Low Stock

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  • Fuse Block - Genuine
    List Price
    £14.10 Ex VAT
    £16.92 Inc VAT
    Keypart Price
    £12.69 Ex VAT
    £15.23 Inc VAT
    Low Stock

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  • Oil Pressure Switch - for Warning Light
    List Price
    £29.14 Ex VAT
    £34.97 Inc VAT
    Keypart Price
    £23.31 Ex VAT
    £27.97 Inc VAT
    In Stock

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  • Drive Belt - for Alternator
    List Price
    £13.10 Ex VAT
    £15.72 Inc VAT
    Keypart Price
    £10.48 Ex VAT
    £12.58 Inc VAT
    Please Contact for Stock Status

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  • Temperature Sender - Genuine - for Gauge
    List Price
    £37.10 Ex VAT
    £44.52 Inc VAT
    Keypart Price
    £33.39 Ex VAT
    £40.07 Inc VAT
    In Stock

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  • 14V/60A Alternator Assembly (Pulley NOT included) - (Pulley may be required if replacing SEV Marchal Unit)
    List Price
    £345.00 Ex VAT
    £414.00 Inc VAT
    Keypart Price
    £230.00 Ex VAT
    £276.00 Inc VAT
    Low Stock

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Repair Kits


  • De-Coke Gasket Kit (1 required per Cylinder Head)
    List Price
    £113.74 Ex VAT
    £136.49 Inc VAT
    Keypart Price
    £56.87 Ex VAT
    £68.24 Inc VAT
    In Stock

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  • Additional Gasket Kit
    List Price
    £418.00 Ex VAT
    £501.60 Inc VAT
    Keypart Price
    £376.20 Ex VAT
    £451.44 Inc VAT
    Special Order Usually 7 - 9 Days

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  • Seawater Pump Seal Kit
    List Price
    £13.49 Ex VAT
    £16.19 Inc VAT
    Keypart Price
    £10.79 Ex VAT
    £12.95 Inc VAT
    In Stock

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  • Fuel Line Washer Kit
    List Price
    £11.44 Ex VAT
    £13.73 Inc VAT
    Keypart Price
    £9.15 Ex VAT
    £10.98 Inc VAT
    In Stock

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  • Seal Kit for CAV/Delphi 296 Pre-filter
    List Price
    £4.93 Ex VAT
    £5.92 Inc VAT
    Keypart Price
    £3.94 Ex VAT
    £4.73 Inc VAT
    In Stock

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  • Diaphragm Kit for Vacuum Valve (Body not included) - Brass Volvo units only
    List Price
    £23.60 Ex VAT
    £28.32 Inc VAT
    Keypart Price
    £4.00 Ex VAT
    £4.80 Inc VAT
    In Stock

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  • Seawater Pump Seal Kit - for Cover Plate with Bush
    List Price
    £15.44 Ex VAT
    £18.53 Inc VAT
    Keypart Price
    £12.35 Ex VAT
    £14.82 Inc VAT
    In Stock

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  • Seawater Pump Repair Kit - (for 825916 pump with Dimpled front cover and Bush)
    List Price
    £73.27 Ex VAT
    £87.92 Inc VAT
    Keypart Price
    £54.95 Ex VAT
    £65.94 Inc VAT
    In Stock

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  • Sea Water Pump Wear Kit - Genuine (only ONE Seal included) - - for Pumps with flat Cover Plate (829895)
    List Price
    £78.10 Ex VAT
    £93.72 Inc VAT
    Keypart Price
    £70.29 Ex VAT
    £84.35 Inc VAT
    Please Contact for Stock Status

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  • Sea-water Pump Shaft Kit - Genuine - - for Pumps with flat Cover Plate (829895)
    List Price
    £88.60 Ex VAT
    £106.32 Inc VAT
    Keypart Price
    £79.74 Ex VAT
    £95.69 Inc VAT
    In Stock

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  • Sea-Water Pump Cover Screw Kit (pack of 6) - Replacement - - for Pumps with flat Cover Plate (829895)
    List Price
    £7.00 Ex VAT
    £8.40 Inc VAT
    Keypart Price
    £6.30 Ex VAT
    £7.56 Inc VAT
    Low Stock

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MS & MSB Reverse Gear

MS & MSB Oil Capacity is approximately 0.60 Litres (use Engine Oil). RB Gearboxes share a common supply with the engine.


  • Gasket & Seal Kit - Genuine
    List Price
    £112.00 Ex VAT
    £134.40 Inc VAT
    Keypart Price
    £100.80 Ex VAT
    £120.96 Inc VAT
    Special Order Usually 3 - 5 Days

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  • Gasket - for Dipstick
    Keypart Price
    £0.43 Ex VAT
    £0.52 Inc VAT
    In Stock

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  • Seal Ring - for Gear Selector
    List Price
    £13.03 Ex VAT
    £15.64 Inc VAT
    Keypart Price
    £10.42 Ex VAT
    £12.50 Inc VAT
    In Stock

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  • O-ring - for Gear Selector Housing
    List Price
    £4.30 Ex VAT
    £5.16 Inc VAT
    Keypart Price
    £3.44 Ex VAT
    £4.13 Inc VAT
    In Stock

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  • Roll Pin - for Gear Selector
    Keypart Price
    £0.69 Ex VAT
    £0.83 Inc VAT
    In Stock

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  • Seal Ring for Reduction Gear - Replacement
    List Price
    £34.90 Ex VAT
    £41.88 Inc VAT
    Keypart Price
    £31.41 Ex VAT
    £37.69 Inc VAT
    In Stock

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  • Rubber Element for Volvo Flexible Coupling (4 or 6 required)
    List Price
    £38.50 Ex VAT
    £46.20 Inc VAT
    Keypart Price
    £30.80 Ex VAT
    £36.96 Inc VAT
    In Stock

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Zinc Shaft Clamp Anodes - Seawater Use


  • 3/4" Zinc Shaft Anode
    List Price
    £16.00 Ex VAT
    £19.20 Inc VAT
    Keypart Price
    £11.20 Ex VAT
    £13.44 Inc VAT
    In Stock

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  • 25mm Zinc Shaft Anode
    List Price
    £17.00 Ex VAT
    £20.40 Inc VAT
    Keypart Price
    £11.90 Ex VAT
    £14.28 Inc VAT
    In Stock

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  • 1" Zinc Shaft Anode
    List Price
    £16.00 Ex VAT
    £19.20 Inc VAT
    Keypart Price
    £11.20 Ex VAT
    £13.44 Inc VAT
    In Stock

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  • 30mm Zinc Shaft Anode
    List Price
    £17.00 Ex VAT
    £20.40 Inc VAT
    Keypart Price
    £11.90 Ex VAT
    £14.28 Inc VAT
    In Stock

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  • 1-1/4" Zinc Shaft Anode
    List Price
    £17.00 Ex VAT
    £20.40 Inc VAT
    Keypart Price
    £11.90 Ex VAT
    £14.28 Inc VAT
    In Stock

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  • 35mm Zinc Shaft Anode
    List Price
    £18.00 Ex VAT
    £21.60 Inc VAT
    Keypart Price
    £12.60 Ex VAT
    £15.12 Inc VAT
    In Stock

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  • 1-1/2" Zinc Shaft Anode
    List Price
    £18.00 Ex VAT
    £21.60 Inc VAT
    Keypart Price
    £12.60 Ex VAT
    £15.12 Inc VAT
    Low Stock

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  • 40mm Zinc Shaft Anode
    List Price
    £22.00 Ex VAT
    £26.40 Inc VAT
    Keypart Price
    £15.40 Ex VAT
    £18.48 Inc VAT
    In Stock

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  • 45mm Zinc Shaft Anode
    List Price
    £23.00 Ex VAT
    £27.60 Inc VAT
    Keypart Price
    £16.10 Ex VAT
    £19.32 Inc VAT
    Please Contact for Stock Status

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  • 50mm Zinc Shaft Anode
    List Price
    £30.00 Ex VAT
    £36.00 Inc VAT
    Keypart Price
    £21.00 Ex VAT
    £25.20 Inc VAT
    In Stock

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  • 2" Zinc Shaft Anode
    List Price
    £30.00 Ex VAT
    £36.00 Inc VAT
    Keypart Price
    £21.00 Ex VAT
    £25.20 Inc VAT
    In Stock

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Chemicals

Please note: It is NOT possible to ship most liquids by air. Aerosols can ONLY be purchased by customers in England, Scotland and Wales.


  • *AEROSOL* Green Aerosol Paint - 400 ml (Shipping restrictions apply - see above)
    List Price
    £20.20 Ex VAT
    £24.24 Inc VAT
    Keypart Price
    £16.16 Ex VAT
    £19.39 Inc VAT
    Please Contact for Stock Status

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  • Loctite Threadlock 10ml
    List Price
    £20.00 Ex VAT
    £24.00 Inc VAT
    Keypart Price
    £15.00 Ex VAT
    £18.00 Inc VAT
    In Stock

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  • Loctite Threadlock 50ml
    List Price
    £45.00 Ex VAT
    £54.00 Inc VAT
    Keypart Price
    £40.00 Ex VAT
    £48.00 Inc VAT
    In Stock

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  • *AEROSOL* RP-90 Rapid Penetrating & Release Fluid 500ml (shipping restrictions apply - see above)
    Keypart Price
    £5.64 Ex VAT
    £6.77 Inc VAT
    In Stock

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  • *AEROSOL* SA-90 Industrial Strength Adhesive 500ml (Shipping restrictions apply - see above)
    Keypart Price
    £12.00 Ex VAT
    £14.40 Inc VAT
    Low Stock

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  • *AEROSOL* Amaze Dash Plastic & Rubber Cleaner 500ml (Shipping restrictions apply - see above)
    Keypart Price
    £5.50 Ex VAT
    £6.60 Inc VAT
    In Stock

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  • *AEROSOL* AC-90 Moisture Displacement & Lubricant 500ml (Shipping restrictions apply - see above)
    Keypart Price
    £7.03 Ex VAT
    £8.44 Inc VAT
    In Stock

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  • *AEROSOL* Supertrol 001 Heavy Duty Corrosion Protector 500ml - Ideal for corrosion protection of steel components in storage or in transit.
    Keypart Price
    £8.97 Ex VAT
    £10.76 Inc VAT
    Low Stock

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  • *AEROSOL* TF-90 Fast Dry Cleaning Solvent & Degreaser 500ml (Shipping restrictions apply - see above)
    Keypart Price
    £8.78 Ex VAT
    £10.54 Inc VAT
    Low Stock

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  • *AEROSOL* Multi-Purpose Oil with Anti-rust 415ml - A must for Boats (Shipping restrictions apply - see above)
    Keypart Price
    £5.78 Ex VAT
    £6.94 Inc VAT
    Low Stock

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Tools & Manuals


  • Oil Change Pump Kit (Universal)
    List Price
    £75.00 Ex VAT
    £90.00 Inc VAT
    Keypart Price
    £63.00 Ex VAT
    £75.60 Inc VAT
    In Stock

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MD3B Diesel Engine