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431B Petrol Engine

Manufactured between the years of 1991 - 1992


Engine


  • Oil Filter - Replacement
    List Price
    £12.05 Ex VAT
    £14.46 Inc VAT
    Keypart Price
    £9.64 Ex VAT
    £11.57 Inc VAT
    Low Stock

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  • Oil Filter - Genuine
    List Price
    £8.10 Ex VAT
    £9.72 Inc VAT
    Keypart Price
    £7.29 Ex VAT
    £8.75 Inc VAT
    In Stock

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  • Power Steering Belt
    List Price
    £24.90 Ex VAT
    £29.88 Inc VAT
    Keypart Price
    £19.92 Ex VAT
    £23.90 Inc VAT
    Low Stock

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  • Rocker Cover Gasket - (2 Required per Engine)
    List Price
    £40.41 Ex VAT
    £48.49 Inc VAT
    Keypart Price
    £32.33 Ex VAT
    £38.80 Inc VAT
    In Stock

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Replacement Long Block


Lubricants

Engine oil capacity is approximately 4.2 Litres


  • 25W/40 Synthetic Blend Engine Oil 4.7 litre (Not available to customers outside the UK)
    List Price
    £57.09 Ex VAT
    £68.51 Inc VAT
    Keypart Price
    £45.67 Ex VAT
    £54.80 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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Exhaust Manifold Kits


Cooling System


  • Thermostat Kit for Direct Cooled Engines - Genuine
    List Price
    £23.40 Ex VAT
    £28.08 Inc VAT
    Keypart Price
    £21.06 Ex VAT
    £25.27 Inc VAT
    In Stock

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  • Impeller Kit - Replacement - for Pumps with 4-hole Cover
    List Price
    £34.20 Ex VAT
    £41.04 Inc VAT
    Keypart Price
    £27.36 Ex VAT
    £32.83 Inc VAT
    In Stock

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  • Seawater Pump Impeller Kit - Splined Type - Genuine
    List Price
    £34.20 Ex VAT
    £41.04 Inc VAT
    Keypart Price
    £30.78 Ex VAT
    £36.94 Inc VAT
    In Stock

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  • Impeller Kit - Replacement - for Pumps with 6-hole Cover
    List Price
    £51.30 Ex VAT
    £61.56 Inc VAT
    Keypart Price
    £41.04 Ex VAT
    £49.25 Inc VAT
    In Stock

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  • Seawater Pump Assembly - ** VALUE ITEM **
    List Price
    £359.00 Ex VAT
    £430.80 Inc VAT
    Keypart Price
    £305.15 Ex VAT
    £366.18 Inc VAT
    Low Stock

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  • Allen Screw for securing 857451 - Replacement - 3 required
    List Price
    £6.70 Ex VAT
    £8.04 Inc VAT
    Keypart Price
    £5.36 Ex VAT
    £6.43 Inc VAT
    In Stock

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  • Seawater Pump Cover Screw - for Pumps with 4-hole Cover
    List Price
    £3.45 Ex VAT
    £4.14 Inc VAT
    Keypart Price
    £2.76 Ex VAT
    £3.31 Inc VAT
    In Stock

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  • Seawater Pump Cover Screw - for Pumps with 6-hole Cover
    Keypart Price
    £1.50 Ex VAT
    £1.80 Inc VAT
    In Stock

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  • Circulation Pump Assembly - ** VALUE ITEM **
    List Price
    £146.00 Ex VAT
    £175.20 Inc VAT
    Keypart Price
    £80.00 Ex VAT
    £96.00 Inc VAT
    Low Stock

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  • Exhaust Manifold (2 Required per Engine) - ** VALUE ITEM **
    List Price
    £276.00 Ex VAT
    £331.20 Inc VAT
    Keypart Price
    £150.00 Ex VAT
    £180.00 Inc VAT
    Low Stock

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  • Exhaust Riser (2 Required per Engine) - ** VALUE ITEM**
    List Price
    £162.00 Ex VAT
    £194.40 Inc VAT
    Keypart Price
    £145.80 Ex VAT
    £174.96 Inc VAT
    Please Contact for Stock Status

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  • Exhaust Manifold to Head Gasket (2 required per engine)
    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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  • Exhaust Manifold to Riser Gasket (2 Required Per Engine)
    List Price
    £12.10 Ex VAT
    £14.52 Inc VAT
    Keypart Price
    £7.26 Ex VAT
    £8.71 Inc VAT
    In Stock

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  • Exhaust Riser to Downpipe Hose (2 Required per Engine) - Replacement
    List Price
    £71.40 Ex VAT
    £85.68 Inc VAT
    Keypart Price
    £49.98 Ex VAT
    £59.98 Inc VAT
    In Stock

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Fuel System (Engine)


  • Fuel Filter (10 Micron) - Replacement -100mm (3-15/16") Long - - for Bulkhead Mounting
    List Price
    £11.15 Ex VAT
    £13.38 Inc VAT
    Keypart Price
    £8.92 Ex VAT
    £10.70 Inc VAT
    Low Stock

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  • 10-Micron Fuel Filter - Replacement - 110mm (4-3/8") Long
    List Price
    £11.15 Ex VAT
    £13.38 Inc VAT
    Keypart Price
    £8.92 Ex VAT
    £10.70 Inc VAT
    Low Stock

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  • 10-micron Fuel Filter - Chrome - Replacement - for 18-7852-1
    List Price
    £16.00 Ex VAT
    £19.20 Inc VAT
    Keypart Price
    £13.00 Ex VAT
    £15.60 Inc VAT
    Please Contact for Stock Status

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  • Fuel Filter - Spin On - Genuine
    Keypart Price
    £10.30 Ex VAT
    £12.36 Inc VAT
    In Stock

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  • Carburettor Repair Kit - Rochester 2GC
    List Price
    £57.08 Ex VAT
    £68.50 Inc VAT
    Keypart Price
    £45.66 Ex VAT
    £54.79 Inc VAT
    In Stock

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  • Carburettor Repair Kit - Rochester Quadrajet 4MV
    List Price
    £125.58 Ex VAT
    £150.70 Inc VAT
    Keypart Price
    £62.79 Ex VAT
    £75.35 Inc VAT
    In Stock

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  • Quickstor Fuel Stabiliser - 355ml (12oz) - Genuine - - Treats approx 50 Imperial Gallons
    Keypart Price
    £19.58 Ex VAT
    £23.50 Inc VAT
    In 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.


  • Fuel Filter Kit with 1/4" Ports - Aluminium Head (Short Filter) 21 micron for Bulkhead Mounting
    List Price
    £40.00 Ex VAT
    £48.00 Inc VAT
    Keypart Price
    £30.00 Ex VAT
    £36.00 Inc VAT
    Low Stock

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  • Barbed Hose Tail for 3/8" ID Hose for Fuel Filter Assembly - Straight
    List Price
    £7.00 Ex VAT
    £8.40 Inc VAT
    Keypart Price
    £5.25 Ex VAT
    £6.30 Inc VAT
    In Stock

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  • Barbed Hose Tail for 3/8" ID Hose for Fuel Filter Assembly - 90 Deg
    List Price
    £9.00 Ex VAT
    £10.80 Inc VAT
    Keypart Price
    £7.00 Ex VAT
    £8.40 Inc VAT
    Please Contact for Stock Status

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  • Fuel Filter (10 Micron) - Replacement -100mm (3-15/16") Long - - for Bulkhead Mounting
    List Price
    £11.15 Ex VAT
    £13.38 Inc VAT
    Keypart Price
    £8.92 Ex VAT
    £10.70 Inc VAT
    Low Stock

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  • 10-Micron Fuel Filter - Replacement - 110mm (4-3/8") Long
    List Price
    £11.15 Ex VAT
    £13.38 Inc VAT
    Keypart Price
    £8.92 Ex VAT
    £10.70 Inc VAT
    Low Stock

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  • 10-micron Fuel Filter - Chrome - Replacement - for 18-7852-1
    List Price
    £16.00 Ex VAT
    £19.20 Inc VAT
    Keypart Price
    £13.00 Ex VAT
    £15.60 Inc VAT
    Please Contact for Stock Status

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  • Fuel Filter for CAV/Delphi 296 Pre-filter (Optional) - Replacement
    List Price
    £8.60 Ex VAT
    £10.32 Inc VAT
    Keypart Price
    £6.02 Ex VAT
    £7.22 Inc VAT
    In Stock

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  • Fuel Filter - Fleetguard
    List Price
    £15.00 Ex VAT
    £18.00 Inc VAT
    Keypart Price
    £12.00 Ex VAT
    £14.40 Inc VAT
    In Stock

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  • Fuel Filter - Fleetguard
    List Price
    £15.00 Ex VAT
    £18.00 Inc VAT
    Keypart Price
    £12.00 Ex VAT
    £14.40 Inc VAT
    In Stock

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Ignition System


  • Spark Plug - (6 Required per Engine)
    List Price
    £5.05 Ex VAT
    £6.06 Inc VAT
    Keypart Price
    £3.50 Ex VAT
    £4.20 Inc VAT
    Low Stock

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  • High Tension Plug Lead Set
    List Price
    £60.00 Ex VAT
    £72.00 Inc VAT
    Keypart Price
    £42.00 Ex VAT
    £50.40 Inc VAT
    In Stock

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  • Rotor Arm - Prestolite
    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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  • Distributor Cap - Prestolite
    List Price
    £53.90 Ex VAT
    £64.68 Inc VAT
    Keypart Price
    £40.42 Ex VAT
    £48.50 Inc VAT
    In Stock

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  • Mallory Electronic Distributor - Even Fire - Replacement - - for AQ205A, 431A and 431B
    List Price
    £420.00 Ex VAT
    £504.00 Inc VAT
    Keypart Price
    £350.00 Ex VAT
    £420.00 Inc VAT
    Please Contact for Stock Status

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  • HT Lead Marker Set numbered 1 to 8
    List Price
    £10.00 Ex VAT
    £12.00 Inc VAT
    Keypart Price
    £8.00 Ex VAT
    £9.60 Inc VAT
    Low Stock

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  • HT Lead Wire Separator Kit - Blue
    List Price
    £10.00 Ex VAT
    £12.00 Inc VAT
    Keypart Price
    £8.00 Ex VAT
    £9.60 Inc VAT
    In Stock

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  • HT Lead Wire Separator Kit - Black
    List Price
    £10.00 Ex VAT
    £12.00 Inc VAT
    Keypart Price
    £8.00 Ex VAT
    £9.60 Inc VAT
    In Stock

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Electrical System


  • Marine Starter Motor Assembly - Heavy Duty with Water Drain
    List Price
    £279.00 Ex VAT
    £334.80 Inc VAT
    Keypart Price
    £120.00 Ex VAT
    £144.00 Inc VAT
    Low Stock

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  • Alternator Drive Belt
    List Price
    £30.50 Ex VAT
    £36.60 Inc VAT
    Keypart Price
    £21.35 Ex VAT
    £25.62 Inc VAT
    In Stock

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  • 14V/60A Alternator Assembly (Pulley NOT included)
    List Price
    £379.00 Ex VAT
    £454.80 Inc VAT
    Keypart Price
    £235.00 Ex VAT
    £282.00 Inc VAT
    In Stock

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  • Alternator Pulley (Required when upgrading to 14V/60A) - Genuine
    List Price
    £55.90 Ex VAT
    £67.08 Inc VAT
    Keypart Price
    £50.31 Ex VAT
    £60.37 Inc VAT
    In Stock

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  • Starter Relay 12V - Replacement
    List Price
    £23.60 Ex VAT
    £28.32 Inc VAT
    Keypart Price
    £18.88 Ex VAT
    £22.66 Inc VAT
    In Stock

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  • Reset Fuse Unit - Genuine
    List Price
    £61.90 Ex VAT
    £74.28 Inc VAT
    Keypart Price
    £55.71 Ex VAT
    £66.85 Inc VAT
    In Stock

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  • 55A Power Trim Fuse
    List Price
    £18.90 Ex VAT
    £22.68 Inc VAT
    Keypart Price
    £17.01 Ex VAT
    £20.41 Inc VAT
    In Stock

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Repair Kits


  • Seal Kit for CAV/Delphi 296 Pre-filter
    List Price
    £5.13 Ex VAT
    £6.16 Inc VAT
    Keypart Price
    £4.10 Ex VAT
    £4.92 Inc VAT
    In Stock

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Repair Items


  • Crankshaft Pulley - 2-Groove - Genuine
    List Price
    £114.00 Ex VAT
    £136.80 Inc VAT
    Keypart Price
    £102.60 Ex VAT
    £123.12 Inc VAT
    Special Order Usually 3 - 5 Days

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  • Flywheel Ring Gear For 14" GM Flywheel - Replacement (168 Teeth)
    List Price
    £181.00 Ex VAT
    £217.20 Inc VAT
    Keypart Price
    £95.00 Ex VAT
    £114.00 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.


  • Loctite Threadlock 10ml
    List Price
    £25.00 Ex VAT
    £30.00 Inc VAT
    Keypart Price
    £20.00 Ex VAT
    £24.00 Inc VAT
    In Stock

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  • Loctite Threadlock 50ml
    List Price
    £50.00 Ex VAT
    £60.00 Inc VAT
    Keypart Price
    £45.00 Ex VAT
    £54.00 Inc VAT
    In Stock

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  • Quickstor Fuel Stabiliser - 355ml (12oz) - Genuine - - Treats approx 50 Imperial Gallons
    Keypart Price
    £19.58 Ex VAT
    £23.50 Inc VAT
    In Stock

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  • *AEROSOL* Fogging Oil Spray (12oz) 340gm - Genuine (for use when laying up) (Shipping restrictions apply - see above)
    List Price
    £21.29 Ex VAT
    £25.55 Inc VAT
    Keypart Price
    £19.16 Ex VAT
    £22.99 Inc VAT
    In Stock

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Tools & Manuals


  • Engine & Sterndrive Workshop Manual 1968-1991
    List Price
    £40.00 Ex VAT
    £40.00 Inc VAT
    Keypart Price
    £35.00 Ex VAT
    £35.00 Inc VAT
    Low 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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Accessories


  • Safety Switch - Sierra Marine Works - Coiled Lanyard
    List Price
    £33.00 Ex VAT
    £39.60 Inc VAT
    Keypart Price
    £25.00 Ex VAT
    £30.00 Inc VAT
    Please Contact for Stock Status

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  • Battery Master Switch - Sierra Marine Works - 12V/100A Continuous (12V/500A for 10 seconds)
    List Price
    £23.00 Ex VAT
    £27.60 Inc VAT
    Keypart Price
    £16.00 Ex VAT
    £19.20 Inc VAT
    Low Stock

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431B Petrol Engine