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 DescriptionBorgward ModelOther Vehicle ModelEquivalent Part No / CommentSupplier
BatteryIsabellaCentury Yuasa nnnnnnn
Boot RubberIsabella421 0047 K,NRHappich Germany
Brake Cylinders (Front)IsabellaMercedes
Mercedes Oldtimer service
Brake HosesIsabellaFull sets of Brake hoses are available
from Argentina via eBay for about £25 plus postage.
BumpersIsabellaStainless Steel bumpers are available
from Group Harrington, UK
Isabella 70 BH TSWeber 28 36 DCD carburettor
replaces the TS Solex
You will need a new adaptor.
ClutchIsabellaVW 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
DistributorIsabellaMercedesMercedes W110, W115 and W123 engines
Mercedes 190 Sl, Ponton, 190C, 200, 220, 220US and 230
123 Ignition Shop
Drain Cock (Engine)IsabellaMGB (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.
ExhaustIsabellaVW Golf GTi (early type)silencer and resonator works well
Headlight ReflectorIsabellaTVR or early VW PoloCan be adapted H4 bulbs will then fit.
Hose connectorIsabellaMGB (early model)curved cast steel pipe connecting two large
diameter hoses to a heater hose very similar
Interior Light LensIsabella CoupeVolvo666539-2 is a direct replacement
for the Coupé interior light lens
Interior Light LensIsabella SedanVolvoLight lens and switch;
AG1111G (662109-8) [ORD. 175290]
MiscellaneousIsabellaearly Volkswagensmany parts for early Volkswagens.
These include headlight reflectors, wiper motors,
shafts and arms , bulbs etc.
Kaeferland, Germany
Oil FilterIsabellaLand RoverMANN PF915N
Petrol PumpIsabellaACAC 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 FanIsabellaFrom 1970's Volvo or BMWNon-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 HosesIsabellaQuinton 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)IsabellaPorsche 356 1951-1955

Volvo P1800, P121 P122 Amazon

Datsun (Nissan) 2000 Roadster
Koni 80 1011
Monroe R1504
Armstrong 62-0080
Shock AbsorbersIsabellaPorsche 356 1951-1955

Sachs Shock Absorber 228119
VW 111 513 031
Spark PlugIsabella65 HP StandardNGK B6HS
Spark PlugIsabella70 HP TSNGK B7HS
ThermostatIsabellaHALFORDS HTS606
Tie rod endsIsabellaMercedes and VWFIRST Line
FTR4007 (RH Thread) and
FTR4008 (LH Thread)
Trim (Bonnet)IsabellaTriumph HeraldBonnet 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.
WindscreensIsabella Saloon
Isabella Coupé
Hansa 2400 Pullman
Pilkington Glass NZ

Pilkington Glass UK
Wiper Motor (if converted to 12-volt)IsabellaVolvo 245 (rear window)