Spare Parts List

Below is a comprehensive list of my De Dion-Bouton spares. Unless otherwise noted the item is available and can be shipped worldwide. Additional shipping charges may be applicable unless otherwise stated in the description below.  

8 hp Cylinder Block for 1904

100mm bore x 120mm stroke supplied fully machined casting ready to fit with water outlet and blanking ports and with valve guide in two coats of primer.

Machine castings are all sold but available as a rough casting

£850

6 hp Cylinder Block for 1904

90mm bore x 110mm stroke supplied fully machined casting ready to fit with water outlet and blanking ports and with valve guide in two coats of primer

£2750

4.5 hp Cylinder Head for 1900

84mm bore x 90mm stroke supplied fully machined casting ready to fit with water outlet and blanking ports and with valve guide and exhaust outlet with two coats of primer.

5 Machined Castings
£2750

8 hp Cylinder block for 1902-03

100mm bore x 110 stroke sold as unmachined casting only.

£780.00

Cast Iron Pistons 1898 - 1904

All supplied with piston rings, gudgeon pin and security screws. Also supplied with .020 thou oversize

6hp, 10 hp and 12 hp (price on application)
8 hp
4 ½ hp Vis a Vis
3 ½ hp Vis a Vis
2 ¾ hp Tricycle 74mm
2 ¼ hp Tricycle 70mm
1 ¾ hp Tricycle 66mm
£POA

Connecting Rods

No bronze bearings supplied
8 hp 274 centres - £400.00
6 hp 248 centres - £375.00
4 ½ hp 220 centres - £330.00
3 ½ hp 215 centres - £310.00

Cast Iron value guides

10 hp
8 hp
6 hp
4 ½ hp
3 ½ hp
2 ¾ hp
2 ¼ hp
1 ¾ hp

£118

Large exhaust values

10 hp - 42mm x 12mm x 163mm
8 hp - 42mm x 9mm x 158mm
6 hp - 38mm x 9mm x 152mm
4 ½ hp - 38mm x 11/9mm x 135mm
3 ½ hp - 34mm x 9/8mm x 129mm
2 ¾ hp - 32mm x 8/7mm x 120mm
2 ¼ hp - 30mm x 6mm x 112mm
1 ¾ hp - 30mm x 6mm x 112mm

£112

Exhaust Valve Springs

10 hp - £21
8 hp - £18
6 hp - £17
4 ½ hp - £16
3 ½ hp - £16
2 ¾ hp - £14
2 ¼ hp - £14
1 ¾ hp - £14

Exhaust Valve Spring Holders & Cotter Pins

10 hp - £24
8 hp - £18
6 hp - £18
4 ½ hp - £18
3 ½ hp - £16
2 ¾ hp - £12
2 ¼ hp - £8
1 ¾ hp - £8

Bronze Inlet Dome + Steel Screw

10 hp - £315
8 hp - TBA
6 hp - £315
4 ½ hp - TBA
3 ½ hp - TBA
2 ¾ hp - TBA
2 ¼ hp - TBA
1 ¾ hp - TBA

Automatic Inlet Valves

All supplied with gaskets in fitted wooden cases. The 10 hp to 4.5hp valves are now much stronger with a modified spring holder and new cotter pin arrangement.

10 hp - 42mm
8 hp - 42mm
6 hp - 38mm
4 ½ hp 38mm
3 ½ hp - 34mm
2 ¾ hp 32mm
2 ¼ hp - 30m
1 ¾ hp 30mm
1 ¾ hp - 30mm 1898
1 ¾ hp screw

£280

Automatic Inlet Valve Gasket Sets

10 hp - 42mm
8 hp - 42mm
6 hp - 38mm
4 ½ hp 38mm
3 ½ hp - 34mm
2 ¾ hp 32mm
2 ¼ hp - 30m
1 ¾ hp 30mm
1 ¾ hp - 30mm 1898
1 ¾ hp screw

£9 - £12

Automatic Inlet Valve Springs

10hp - 8hp - 6hp - 4.5hp

NB: These new Type 2 Valves need the lighter springs

10 hp - £12
8 hp - £12
6 hp - £12
4.5 hp - £12
3.5 hp - £10
2.75 hp - £10
2.25 hp - £9
1.75 hp - £9

Bronze Inlet Valve Elbows

10 hp Two left 8 hp Two left 6 hp One left 4 ½ hp One left 3 ½ hp 2 ¾ hp one left 2 ¼ hp 1 ¾ hp

£128 - £180

Contact Breakers Type 1: 1898-02 Models

Complete with fixing blade, spare timing blade and timing cam and fittings. Available with left or right hand terminals.

10mm shaft and 12mm shaft sizes available

Tricycle engine cams turn anti-clockwise the rest turn clockwise

£650

Type 1 Contact breaker 1898 - 1902 Spares

Timing cam with fittings (10mm shaft) - £78
12mm cam also available

Timing Blade with hammer and point - £48
Brass screw with tungsten point - £42
Aluminium Cover polished - £102
Pair of toggles in nickel - £46

Contact Breakers Type 2: 1902-03 Models

Supplied with timing cam + fittings including spare timing blade, 15mm depth and 36mm spigot. Shaft size 14mm

£720

Type 2 Contact Breakers Parts Available

Timing cam with fittings (14mm shaft) - £78
Timing Blade with hammer and point - £48
Brass screw with tungsten point - £42
Aluminium Cover polished - £110
Pair of toggles in nickel - £46

Type 3 Contact Breaker 1904

Supplied with timing cam and fittings and with spare timing blade, spigot 36mm, 25mm depth, 14mm shaft size

£875



Type 3 Contact Breaker spares

Timing cam with fittings £78
Spring steel contact blade £33
Brass screw with point £42
Tension spring for adjuster £10
Brass adjuster wheel + pin £30
Aluminium cover polished £140
Cover locking and spring £38

Type W Contact Breaker for Twin Cylinder

10 hp - 1904 Supplied with double timing cam and fittings and two spare blades. Shaft size 14mm and spigot size 36mm

No longer available

Ignition Switches

For low voltage use only

Small switch - £92
Large switch - £132

Water Pump Safety Springs

Long single cylinder spring - 108mm length - £16
Short single cylinder spring - 84mm length - £16
Vis a vis short spring 55mm length (Not shown in picture) - £14
Twin cylinder short spring - 50mm diameter - £19 Tension packing spring - 36mm diameter - £14

Radiator Script Badge in Brass

Supplied with all fittings + Also suppled in Nickel - 273mm Long

Out of stock

Radiator Script Badge Set

Supplied with all fittings Suppled in Brass & Nickel plated - 185mm Long Brass - £74
Nickel - £84

China Insulators for single and twin cylinder engines

Single cylinder # Twin cylinder insulators Originals still available

Crankcase Breather for Engines

Brass Breathers for engine timing cases with ball bearing fitted

10hp
8hp
6hp

£43

Tension Return Spring for Valve Lifter

These springs keep the tension on the valve lifter

OUT OF STOCK

Carburetta Float

One size fits all from 2 3/4 to 8hp (out of stock)

OUT OF STOCK

Brass Sump Oil Drain Tap

For 10hp - 8hp - 6hp engines

£145

Small Triangle Brass Plate

For the License by The British Traction Co Ltd and the The Dion Dunlop Motor Co Ltd, No 2133

£38

Polished Brass Side Plates

Marked Made in France. Supplied by 10, Great Marlborough Street, London W

410mm X 30MM

£75.00 (only 1 remaining)

Brass Body Plates

For Type D, E, G, O, K, Y, V, R, N, Q, W All supplied with blank chassis numbers for you to stamp your own numbers on

£38 - £48

Carrosserie Brass & Nickel Body Plates

Nickel plated - £32 Brass - £25

Lapel Badges

2 Sizes: 27mm / 31mm diameter

£4.00 each

Grease Gun Leather Cup Washers

Set of replacement leather washers including copper rivets

£40.50

Dashboard Oiler Replacement Leather Cup

Set of replacement Leather washers including copper rivets

£42 per set

Marque Deposee - De Dion Bouton

Gold transfers for the rear of a tonneau door and can be cut away for mounting on side of body - 21cm Length - 10cm Roundel

£12

Marque Deposee - De Dion Bouton

Gold self-adhesive stickers for the side of a tonneau door and can be cut away for mounting on side of body

21cm Length
10cm Roundel

OUT OF STOCK

Coil Box for Single Cylinder Coil

Fitted with brass Marche - Arret switch and two brass supporting straps. With Nelmelior stamped on the front - 172mm x90mm x220mm

3 in stock

£395

Handmade Mahogany Battery Box

Originally for fitting the DDB dry batteries in and they were fitted on the left hand side of the bulkhead. (with brass support bands and locking hinges) 330mm wide, 93mm and 234mm height

1 in stock

£425

Albert Lefebvre Greasers

Supplied in nickel or polished brass

NO 1 - Small - £70
NO 2 - Medium - £75
NO 3 - Large - £80

1899-1900 Tricycle Cylinder Head

2 ¼hp or 2 ¾hp cylinder heads for aircooled Tricycle engines supplied unmachined

2 ¼ hp - 70mm
2 ¾ hp - 74mm

£275

1898 Tricycle Cylinder Head

1.75hp for the screw in automatic valve (supplied unmachined)

£195

Tricycle Cylinder Head Gasket

2 ¾ hp
2 ¼ hp
1 ¾ hp

£26

Tricycle Badge for Surface Carburettor and Battery Box

Finished in dull Nickel Plate

Caburettor Badge - £110
Battery Box Badge - £48

Tricycle Battery Box

Made of steel with hinge and closing rod (w/d/h) 313mm x 70mm x 196mm

SOLD OUT

Tricycle Aluminium Gear Housing

Supplied in one piece to be machined and polished - £149.

I have some polished Gear housings in stock (please ask for price)

Tricycle Bronze Gear for 102 - 104 - 106 Teeth

Rough Casting Available. Earlier gear pattern

Casting weight is 5.5 kilos

£118 (only 1 remaining)