As with most kit car manufacturers Westfield have used a lot of
common parts from major manufacturers, why re-invent perfectly
good components? This page is an attempt to capture those components
so that it is possible to get replacements over the counter from
your local motor factors. Please send any updated or additions to
me at chris@g2.nu
| Part | Source | OEM | Part number |
| Early Twin brake master cylinder | mk3 cortina | | |
| Later Twin brake master cylinder | mk2 fiesta | | |
| Radiator | VW Polo/Golf | Valeo | 883818 |
| Top ball joint | Ford transit 77-85 drag link end | Quinton Hazel | QD 1117 RHT or DELPHI TA298 |
| Track rod end | Escort/cortina | | VB316 |
| Lower ball joint (newer 2bolt fixing) | Maxi | | QSJ602X or DELPHI TC32 |
| Lower ball joint (old 4 bolt fixing) | Cortina MK3/MK4 1975 onwards | | Delphi part No. TC73 |
| Differential | Sierra/granada with rear disk brakes, 7 or 7.5" diffs can be used | | |
| Steering column | Allegro | | |
| Wiper Motor | Mini/Allegra/Maxi/Marina | | |
| Lockable fuel filler (black plastic type) | Late 5 door Metro | | |
| Coolant header tank | Fiesta | | |
| Alternative lightweight Radiator | VW Polo | | |
| Rear silencer (single exit) | Early Saab turbo centre box (modified) | | |
| Front calipers | Mord M16 (Escort II/Cortina/Capri) | | |
| Front disks (vented) | 2.8 Capri and Escort RS2000 MK2 | | |
| Rear wheel bearings | Fiat strada (all) SKF 633295 B | Quinton Hazel | QWB 422 |
| Rear calipers | Sierra | | |
| Rear disks | Escort mkIII | | |
| Throttle cable (Zei220) | Requires minor tweaking | Ford | 1638310 (V86BB 9C799 AA) |
| Clutch cable | Escort mkI | Quinton Hazel | QH1057 |
| Clutch cable (Zei220) | Alledgedly LHD 2WD sierra cosworth actually custom made from speedy cables | Speedy cables | |
| Clutch release bearing (34mm internal spline sleeve diameter) | Ford 2.0 litre type 9 gearbox | Ford | 6124270 |
| 22mm radiator switch for plugging the hole of a polo rad | | Intermotor | 50030 |
| Oil filter (cosworth tall+fat) | | WIX | WL7078 |
| Oil filter (cosworth tall+fat) | | Coopers | Z27A |