The following table contains equivalent parts from other marques, OEM (Original Equipment Manufacturers) or specialist manufacturers.
Thanks to Borgward Drivers Club of UK for their list of equivalent parts.
| Part Description | Borgward Model | Other Vehicle Model | Equivalent Part No / Comment | Supplier |
|---|---|---|---|---|
| Battery | Isabella | Century Yuasa nnnnnnn | ||
| Boot Rubber | Isabella | 421 0047 K,NR | Happich Germany | |
| Brake Cylinders (Front) | Isabella | Mercedes "Bullmercan" | Mercedes Oldtimer service | |
| Brake Hoses | Isabella | Full sets of Brake hoses are available from Argentina via eBay for about £25 plus postage. |
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| Bumpers | Isabella | Stainless Steel bumpers are available from Group Harrington, UK |
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| Carburettor | Isabella 70 BH TS | Weber 28 36 DCD carburettor replaces the TS Solex You will need a new adaptor. | ||
| Clutch | Isabella | VW Polo (1977) | VOLKSWAGEN POLO (1977) front break hose replaces the short hydraulic clutch hose [a fraction longer], Brake Engineering Part no BH770565 applications BMW 3 & 5 Series rear hose '78 onwards and Audi 100 | |
| Distributor | Isabella | Mercedes | Mercedes W110, W115 and W123 engines Mercedes 190 Sl, Ponton, 190C, 200, 220, 220US and 230 | 123 Ignition Shop |
| Drain Cock (Engine) | Isabella | MGB (early cars) | brass block taps fit although they need Teflon/PTFE tape to seal as they do not have a tapered thread and the on and off position is the reverse of that used in Borgwards. | |
| Exhaust | Isabella | VW Golf GTi (early type) | silencer and resonator works well | |
| Headlight Reflector | Isabella | TVR or early VW Polo | Can be adapted H4 bulbs will then fit. | |
| Hose connector | Isabella | MGB (early model) | curved cast steel pipe connecting two large diameter hoses to a heater hose very similar | |
| Interior Light Lens | Isabella Coupe | Volvo | 666539-2 is a direct replacement for the Coupé interior light lens | |
| Interior Light Lens | Isabella Sedan | Volvo | Light lens and switch; AG1111G (662109-8) [ORD. 175290] | |
| Miscellaneous | Isabella | early Volkswagens | many parts for early Volkswagens. These include headlight reflectors, wiper motors, shafts and arms , bulbs etc. | Kaeferland, Germany |
| Oil Filter | Isabella | Land Rover | MANN PF915N WIX KRALINATOR | |
| Petrol Pump | Isabella | AC | AC fuel pump filter and valve housings actually bolt on to the existing base of the original pump. All the holes line up and even the banjo bolts screw in perfectly, although they sit at 10 o'clock and 4 o'clock rather than 9 o'clock and 3 o'clock. You do get a much bigger filter bowl which is glass (so you can see inside it) | |
| Radiator Cooling Fan | Isabella | From 1970's Volvo or BMW | Non-viscous plastic multi blade radiator fan. It is advisable to change the fan as the steel can fatigue, break up and damage the radiator bonnet, etc. | |
| Radiator Hoses | Isabella | Quinton Hazel corrugated hose QH EH886 (is better than the original bottom radiator hose. Quinton Hazel QH742 with an inch removed replaces the top radiator hose. | ||
| Shock Absorbers (Front) | Isabella | Porsche 356 1951-1955 Volvo P1800, P121 P122 Amazon Datsun (Nissan) 2000 Roadster | Koni 80 1011 Monroe R1504 Armstrong 62-0080 | |
| Shock Absorbers | Isabella | Porsche 356 1951-1955 VW | Sachs Shock Absorber 228119 Steyr 160.02.41.0019 VW 111 513 031 | |
| Spark Plug | Isabella | 65 HP Standard | NGK B6HS | |
| Spark Plug | Isabella | 70 HP TS | NGK B7HS | |
| Thermostat | Isabella | HALFORDS HTS606 | ||
| Tie rod ends | Isabella | Mercedes and VW | FIRST Line FTR4007 (RH Thread) and FTR4008 (LH Thread) | |
| Trim (Bonnet) | Isabella | Triumph Herald | Bonnet spear can be cut to length and the rear rounded off by any half decent panel beater. This replaces the anodised aluminium one with stainless steel. It is fractionally wider but the difference is practically unnoticeable. | |
| Windscreens | Isabella Saloon Isabella Coupé Hansa 2400 Pullman | Pilkington Glass NZ Pilkington Glass UK |
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| Wiper Motor (if converted to 12-volt) | Isabella | Volvo 245 (rear window) | ||