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Perkins 4.203 Series Engine Parts

The Perkins 4.203 Series is a line of four-cylinder diesel engines introduced in the 1962 with a displacement of 3.3 litres. Designed for light to medium-duty applications, these engines were commonly used in tractors, generators, and industrial equipment. Known for their simplicity, reliability, and fuel efficiency, the 4.203 Series engines became a trusted power solution across industries.

Our collection of Perkins 4.203 Series engine parts includes everything needed to maintain or restore these classic engines, ensuring they continue to deliver reliable performance.

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Perkins 4.203 Engine Overhaul Kit - JD

Original price £401.99 - Original price £401.99
Original price
£401.99
£401.99 - £401.99
Current price £401.99
Only 3 left!

A very comprehensive aftermarket overhaul kit which includes the major components that you will need to overhaul your tired and smoking Perkins 4.2...

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Original price £401.99 - Original price £401.99
Original price
£401.99
£401.99 - £401.99
Current price £401.99

Perkins 4.203 Engine Overhaul Kit - JE

Original price £365.00 - Original price £365.00
Original price
£365.00
£365.00 - £365.00
Current price £365.00
Only 2 left!

A very comprehensive aftermarket overhaul kit which includes the major components that you will need to overhaul your tired and smoking Perkins 4.2...

View full details
Original price £365.00 - Original price £365.00
Original price
£365.00
£365.00 - £365.00
Current price £365.00

Perkins 4.203.2 Engine Overhaul Kit - JG

Original price £384.99 - Original price £384.99
Original price
£384.99
£384.99 - £384.99
Current price £384.99
Only 2 left!

A very comprehensive aftermarket overhaul kit which includes the major components that you will need to overhaul your tired and smoking Perkins 4.2...

View full details
Original price £384.99 - Original price £384.99
Original price
£384.99
£384.99 - £384.99
Current price £384.99

Perkins 4.203 Top Gasket Set

Original price £35.00 - Original price £35.00
Original price
£35.00
£35.00 - £35.00
Current price £35.00
in stock

A very comprehensive set of aftermarket gaskets and seals for the top end of Perkins 4.203. Note that Perkins made two distinct versions, with earl...

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Original price £35.00 - Original price £35.00
Original price
£35.00
£35.00 - £35.00
Current price £35.00

Perkins 4.203 Bottom Gasket Set

Original price £35.99 - Original price £35.99
Original price
£35.99
£35.99 - £35.99
Current price £35.99
in stock

Aftermarket Perkins 4.203, D4.203 & 4.203.2 bottom gasket and seals set, a very comprehensive set of quality gaskets and seals for the bottom e...

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Original price £35.99 - Original price £35.99
Original price
£35.99
£35.99 - £35.99
Current price £35.99

Perkins 4.203 Direct Injection Cylinder Head Assembly

Original price £351.99 - Original price £351.99
Original price
£351.99
£351.99 - £351.99
Current price £351.99
Only 1 left!

Quality aftermarket Perkins 4.203 cylinder head assembly, direct injection version, comes complete with the following: Inlet and exhaust valves...

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Original price £351.99 - Original price £351.99
Original price
£351.99
£351.99 - £351.99
Current price £351.99

Perkins 4.203 Indirect Injection Cylinder Head

Original price £434.99 - Original price £434.99
Original price
£434.99
£434.99 - £434.99
Current price £434.99
Only 2 left!

Quality aftermarket Perkins 4.203 cylinder head assembly, this is for indirect injection versions. Details: Complete with Inlet and exhaust valv...

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Original price £434.99 - Original price £434.99
Original price
£434.99
£434.99 - £434.99
Current price £434.99

Perkins 4.203 Valve Train Overhaul Kit

Original price £70.00 - Original price £70.00
Original price
£70.00
£70.00 - £70.00
Current price £70.00
Only 1 left!

Quality aftermarket engine overhaul kit for Perkins 4.203 engines includes the following parts: Inlet valves 45° or 35° x 4 Exhaust valves 45° ...

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Original price £70.00 - Original price £70.00
Original price
£70.00
£70.00 - £70.00
Current price £70.00

Perkins 4.203 Tappet

Original price £5.80 - Original price £5.80
Original price
£5.80
£5.80 - £5.80
Current price £5.80
in stock

A quality aftermarket Perkins 4.203 valve cam follower suitable for the following engine versions: (JD) 4.203 and (JE) D4.203 UK, European and Wo...

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Original price £5.80 - Original price £5.80
Original price
£5.80
£5.80 - £5.80
Current price £5.80

Perkins 4.203 Rocker Arm

Original price £6.00 - Original price £6.00
Original price
£6.00
£6.00 - £6.00
Current price £6.00
in stock

Quality, aftermarket Perkins 4.203 Rocker arm details: Right and left version available To fit engine versions with a build code beginning (JD) 4....

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Original price £6.00 - Original price £6.00
Original price
£6.00
£6.00 - £6.00
Current price £6.00

Perkins 4.203 Rear Crankshaft Oil Seal

Original price £10.99 - Original price £10.99
Original price
£10.99
£10.99 - £10.99
Current price £10.99
in stock

Quality aftermarket Perkins 4.203 Rear crankshaft oil seal. UK, European and Worldwide shipping available.

Original price £10.99 - Original price £10.99
Original price
£10.99
£10.99 - £10.99
Current price £10.99

Perkins 4.203 Starter Ring Gear 115 Teeth

Original price £35.00 - Original price £35.00
Original price
£35.00
£35.00 - £35.00
Current price £35.00
Only 1 left!

Quality aftermarket Perkins 4.203 and D4.203 starter ring gear, details: Number of teeth 115 Outside diameter 368mm Inside diameter 340mm Width 17...

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Original price £35.00 - Original price £35.00
Original price
£35.00
£35.00 - £35.00
Current price £35.00

Perkins 4.203 Starter Ring Gear 126 Teeth

Original price £35.00 - Original price £35.00
Original price
£35.00
£35.00 - £35.00
Current price £35.00
Only 1 left!

Quality aftermarket Perkins 4.203 starter ring gear, details: Number of teeth 126 Outside diameter 404mm Inside diameter 375mm Width 17.5mm  UK, ...

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Original price £35.00 - Original price £35.00
Original price
£35.00
£35.00 - £35.00
Current price £35.00

Perkins 4.203 Connecting Rod

Original price £49.50 - Original price £49.50
Original price
£49.50
£49.50 - £49.50
Current price £49.50
Only 1 left!

Quality aftermarket Perkins 4.203 connecting rod, a top quality part that comes with small end bush fitted and reamed to size, together with big en...

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Original price £49.50 - Original price £49.50
Original price
£49.50
£49.50 - £49.50
Current price £49.50

Perkins 4.203 Crankshaft

Original price £362.99 - Original price £362.99
Original price
£362.99
£362.99 - £362.99
Current price £362.99
Only 2 left!

Perkins 4.203 aftermarket crankshaft representing excellent value. Details: This crankshaft is suitable for used with a rear rope seal and canno...

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Original price £362.99 - Original price £362.99
Original price
£362.99
£362.99 - £362.99
Current price £362.99

Perkins 4.203 Thrust Washers Set

Original price £8.99 - Original price £8.99
Original price
£8.99
£8.99 - £8.99
Current price £8.99
Only 4 left!

A set of 4 aftermarket Perkins 4.203 Crankshaft Thrust washers (Standard size) To fit the following versions 4.203, D4.203 and D4.203.2 UK, Europ...

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Original price £8.99 - Original price £8.99
Original price
£8.99
£8.99 - £8.99
Current price £8.99

Perkins 4.203 Crankshaft Main Bearings

Original price £18.75 - Original price £18.75
Original price
£18.75
£18.75 - £18.75
Current price £18.75
Only 3 left!

A quality set of aftermarket main bearings for Perkins 4.203 engines. Available in the following sizes: Standard -0.010" -0.020" -0.030" ...

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Original price £18.75 - Original price £18.75
Original price
£18.75
£18.75 - £18.75
Current price £18.75

Perkins 4.203 Connecting Rod Bearings

Original price £20.00 - Original price £20.00
Original price
£20.00
£20.00 - £20.00
Current price £20.00
Only 2 left!

A quality set of aftermarket Perkins 4.203 connecting rod (big-end) bearings with sintered aluminium bearing faces. To fit all versions of the 4.20...

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Original price £20.00 - Original price £20.00
Original price
£20.00
£20.00 - £20.00
Current price £20.00

Exopro Classic 20W-50 Mineral Oil - 5L

Original price £20.50 - Original price £20.50
Original price
£20.50
£20.50 - £20.50
Current price £20.50
in stock

Exopro classic engine Mineral oil SAE 20W-50. An oil suitable for both petrol and diesel engines. Details: Hi zinc content for ultimate protection...

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Original price £20.50 - Original price £20.50
Original price
£20.50
£20.50 - £20.50
Current price £20.50

Perkins 4.203 Sump Drain Bolt

Original price £7.99 - Original price £7.99
Original price
£7.99
£7.99 - £7.99
Current price £7.99
Only 4 left!

An aftermarket Perkins 4.203 sump bolt. Details: To fit all sumps drilled to take a parallel thread (the majority) sump drain bolt Diameter acr...

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Original price £7.99 - Original price £7.99
Original price
£7.99
£7.99 - £7.99
Current price £7.99

Perkins 4.203 Oil Filter

Original price £6.50 - Original price £6.50
Original price
£6.50
£6.50 - £6.50
Current price £6.50
Only 4 left!

Genuine OE filter manufactured by Perkins for 4.203 engine. Typically Perkins filters include an anti-drain back valve and a by-pass valve to ensur...

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Original price £6.50 - Original price £6.50
Original price
£6.50
£6.50 - £6.50
Current price £6.50

Perkins D4.203 Oil Dip Stick

Original price £3.00 - Original price £3.00
Original price
£3.00
£3.00 - £3.00
Current price £3.00
Only 2 left!

Aftermarket Perkins D4.203 Oil Dip Stick, details: Length from inside tube cover cap to bottom of stick 19cm For build codes Beginning JE UK, Eur...

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Original price £3.00 - Original price £3.00
Original price
£3.00
£3.00 - £3.00
Current price £3.00

Perkins 4.203 Oil Filler Cap

Original price £9.90 - Original price £9.90
Original price
£9.90
£9.90 - £9.90
Current price £9.90
in stock

Quality aftermarket oil filler cap. There are two sizes used on Perkins 4.203. The larger cap fits factory marinised version, whilst the smaller ca...

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Original price £9.90 - Original price £9.90
Original price
£9.90
£9.90 - £9.90
Current price £9.90

Perkins 4.203 Oil Pressure Relief Valve Kit

Original price £9.80 - Original price £9.80
Original price
£9.80
£9.80 - £9.80
Current price £9.80
Only 3 left!

A genuine OE Perkins 4.203 oil pressure relief valve kit. It includes the following items: Plunger Spring Spring cap Cotter pin It fits: JD - 4....

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Original price £9.80 - Original price £9.80
Original price
£9.80
£9.80 - £9.80
Current price £9.80

UNF Stainless Steel Nuts

Original price £0.75 - Original price £3.00
Original price
£0.75 - £3.00
£0.75 - £3.00
Current price £0.75
in stock

UNF A2 Stainless steel nuts, ideal for use in the marine environment, details: UNF (Unified National Fine) 1/4 = 7/16 AF spanner size 5/16 =...

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Original price £0.75 - Original price £3.00
Original price
£0.75 - £3.00
£0.75 - £3.00
Current price £0.75

Perkins 4.203 Oil Filter Conversion Kit

Original price £32.99 - Original price £32.99
Original price
£32.99
£32.99 - £32.99
Current price £32.99
Only 4 left!

If you have one of the early marine versions of Perkins 4.203 with the paper oil filters inside a re-usable steel housing, then you will know what ...

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Original price £32.99 - Original price £32.99
Original price
£32.99
£32.99 - £32.99
Current price £32.99

Perkins 4.203 Oil Pump

Original price £54.99 - Original price £54.99
Original price
£54.99
£54.99 - £54.99
Current price £54.99
Only 2 left!

Perkins 4.203 oil pump to fit all 4.203 engines, direct and indirect injection. These aftermarket oil pumps are very well engineered and excellent...

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Original price £54.99 - Original price £54.99
Original price
£54.99
£54.99 - £54.99
Current price £54.99

Perkins 4.203 Fuel Filter

Original price £4.75 - Original price £4.75
Original price
£4.75
£4.75 - £4.75
Current price £4.75
in stock

A genuine Perkins 4.203 fuel filter. Includes: x1 Fuel filter x3 Sealing rings Fits versions: JD - 4.203 JE - D4.203 JG - 4.2032 UK,...

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Original price £4.75 - Original price £4.75
Original price
£4.75
£4.75 - £4.75
Current price £4.75

Delphi Fuel Filter Assembly Drain Plug And Washer

Original price £2.00 - Original price £2.00
Original price
£2.00
£2.00 - £2.00
Current price £2.00
in stock

Delphi fuel filter assembly Drain Plug and sealing washer. Thread diameter 7.5mm UK, European and worldwide shipping is available.

Original price £2.00 - Original price £2.00
Original price
£2.00
£2.00 - £2.00
Current price £2.00

Wynn's Injector Cleaner 325ml

Original price £7.80 - Original price £7.80
Original price
£7.80
£7.80 - £7.80
Current price £7.80
in stock

Wynn's Injector cleaner for petrol and diesel engines, 325ml. Designed to neutralise the negative effects of water in fuel. Details: Add to the...

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Original price £7.80 - Original price £7.80
Original price
£7.80
£7.80 - £7.80
Current price £7.80

Perkins 4.203 Gasket & Seal Kit For Injector Pumps

Original price £18.50 - Original price £22.50
Original price
£18.50 - £22.50
£18.50 - £22.50
Current price £18.50
in stock

A quality aftermarket set of gaskets and seals to overhaul your Perkins 4.203 CAV DPA fuel pump. We stock both options for either the mechanically...

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Original price £18.50 - Original price £22.50
Original price
£18.50 - £22.50
£18.50 - £22.50
Current price £18.50

Perkins 4.203 Reconditioned Injector

Original price £65.00 - Original price £65.00
Original price
£65.00
£65.00 - £65.00
Current price £65.00

Reconditioned Perkins 4.203 injector. These injectors are disassembled, all the parts are checked, new nozzles fitted, calibrated and tested. We al...

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Original price £65.00 - Original price £65.00
Original price
£65.00
£65.00 - £65.00
Current price £65.00

Perkins 4.203 Lift Pump

Original price £24.75 - Original price £24.75
Original price
£24.75
£24.75 - £24.75
Current price £24.75
Only 4 left!

Aftermarket Perkins 4.203 lift pump - there are three types of lift pump used on these engines: The 'two bolt early' lift pump fits all but the ve...

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Original price £24.75 - Original price £24.75
Original price
£24.75
£24.75 - £24.75
Current price £24.75

Delphi Blanking Plug Kit For Filter Assembly

Original price £7.99 - Original price £7.99
Original price
£7.99
£7.99 - £7.99
Current price £7.99
Only 4 left!

Aftermarket Delphi blanking plug kit for Filter Assembly includes: x2 Blanking plugs (1/2"UNF thread) x2 Blanking plug copper washers x1 Air v...

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Original price £7.99 - Original price £7.99
Original price
£7.99
£7.99 - £7.99
Current price £7.99

Perkins 4.203 Fuel Filter Assembly

Original price £30.00 - Original price £30.00
Original price
£30.00
£30.00 - £30.00
Current price £30.00
Only 5 left!

Replacement Perkins fuel filter assembly for Perkins Perkins 4.203 engines. This genuine Delphi quality part has the correct 1/2" UNF thread origin...

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Original price £30.00 - Original price £30.00
Original price
£30.00
£30.00 - £30.00
Current price £30.00

Perkins 4.203 Sedimenter Kit

Original price £12.00 - Original price £12.00
Original price
£12.00
£12.00 - £12.00
Current price £12.00
Only 3 left!

A high quality aftermarket pre-filter / water separator / fuel filter for Perkins 4.203 with re-usable internal gauze strainer and glass bowl. This...

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Original price £12.00 - Original price £12.00
Original price
£12.00
£12.00 - £12.00
Current price £12.00

Perkins 4.203 Water Temperature Sender

Original price £8.80 - Original price £8.80
Original price
£8.80
£8.80 - £8.80
Current price £8.80
in stock

AftermarketWater temperature sender that fits early Perkins 4.203 engines. Details: Spade type electrical connection 12v or 24v systems. Suppl...

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Original price £8.80 - Original price £8.80
Original price
£8.80
£8.80 - £8.80
Current price £8.80

Stainless Steel Hose Clips

Original price £0.85 - Original price £1.35
Original price
£0.85 - £1.35
£0.85 - £1.35
Current price £0.85
in stock

Strong, good quality Stainless Steel (304 grade) worm drive clamps ideal for both the marine environment and industrial use. Band width 12.5mm Opt...

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Original price £0.85 - Original price £1.35
Original price
£0.85 - £1.35
£0.85 - £1.35
Current price £0.85

Perkins 4.203 Oil Pressure Switch

Original price £9.99 - Original price £9.99
Original price
£9.99
£9.99 - £9.99
Current price £9.99
in stock

Our standard aftermarket single spade oil pressure switch fits Perkins 4.203 that take an earth supply from the engine block. It has a tapered scre...

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Original price £9.99 - Original price £9.99
Original price
£9.99
£9.99 - £9.99
Current price £9.99

Perkins 4.203 Thermostat

Original price £10.50 - Original price £10.50
Original price
£10.50
£10.50 - £10.50
Current price £10.50
in stock

Quality aftermarket Perkins 4.203 series Thermostat with 82°C thermostat to open. Main diameter 54 mm, thermostat includes jiggle pin. JE - D4.2...

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Original price £10.50 - Original price £10.50
Original price
£10.50
£10.50 - £10.50
Current price £10.50

Perkins 4.203 Glowplug Thermostart

Original price £12.99 - Original price £12.99
Original price
£12.99
£12.99 - £12.99
Current price £12.99
in stock

Quality aftermarket Perkins 4.203 12v heater plug (thermostart). It can be supplied with either the 'spade' or alternative 'screw' type electrical ...

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Original price £12.99 - Original price £12.99
Original price
£12.99
£12.99 - £12.99
Current price £12.99

Perkins 4.203 Drain Tap

Original price £6.99 - Original price £6.99
Original price
£6.99
£6.99 - £6.99
Current price £6.99
in stock

Quality aftermarket coolant drain tap for this Perkins 4.203 engine. Details: Fully machined from solid brass. These drain taps have tapered th...

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Original price £6.99 - Original price £6.99
Original price
£6.99
£6.99 - £6.99
Current price £6.99

Perkins 4.203 Ignition Switch

Original price £13.00 - Original price £13.00
Original price
£13.00
£13.00 - £13.00
Current price £13.00
in stock

An aftermarket starter/ignition switch for Perkins 4.203 engines, we offer two switch options, which have either 4 pin or 6 pin electrical connecti...

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Original price £13.00 - Original price £13.00
Original price
£13.00
£13.00 - £13.00
Current price £13.00

Perkins 4.203 Low Oil Pressure Alarm

Original price £8.00 - Original price £14.00
Original price
£8.00 - £14.00
£8.00 - £14.00
Current price £8.00
in stock

Aftermarket Low oil pressure alarm for Perkins 4.203 is a quality bulkhead mounted warning alarm, to be used in conjunction with an oil pressure sw...

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Original price £8.00 - Original price £14.00
Original price
£8.00 - £14.00
£8.00 - £14.00
Current price £8.00

Perkins 4.203 Series Alternator

Original price £70.00 - Original price £110.00
Original price
£70.00 - £110.00
£70.00 - £110.00
Current price £70.00
in stock

High quality aftermarket Perkins 4.203 alternators 12V to fit all versions of these engines set up for a 'three lug' mounted alternator. The adjust...

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Original price £70.00 - Original price £110.00
Original price
£70.00 - £110.00
£70.00 - £110.00
Current price £70.00

Antifreeze & Coolant 2L

Original price £9.50 - Original price £9.50
Original price
£9.50
£9.50 - £9.50
Current price £9.50
in stock

A Mono Ethylene Glycol (MEG) based engine coolant and anti-freeze concentrate from Comma. Gives up to 2 years protection against freezing and overh...

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Original price £9.50 - Original price £9.50
Original price
£9.50
£9.50 - £9.50
Current price £9.50

Perkins Injector Banjo Bolt Set

Original price £4.99 - Original price £4.99
Original price
£4.99
£4.99 - £4.99
Current price £4.99
in stock

High quality aftermarket fuel banjo bolt set, includes: x4 Banjo bolts UK, European and Worldwide shipping available.

Original price £4.99 - Original price £4.99
Original price
£4.99
£4.99 - £4.99
Current price £4.99

Perkins 4.203 Starter Solenoid 100A

Original price £21.00 - Original price £21.00
Original price
£21.00
£21.00 - £21.00
Current price £21.00
Only 4 left!

Quality aftermarket solenoids suitable for automotive' or a marine applications like Perkins 4.203 Our automotive version is suitable for applicati...

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Original price £21.00 - Original price £21.00
Original price
£21.00
£21.00 - £21.00
Current price £21.00

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