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Castrol B373 is a mineral based extreme pressure gear oil which combines limited slip performance with excellent load carrying ability.
Castrol B 373 is particularly suitable for use in limited slip final drives in competition vehicles.
SHIPPING IS FREE* for orders of £75 and over
, regardless of the weight of your order.
We've tried to keep all other shipping costs as low as we can.
Carriage starts at just £0.95 (inc VAT) for small items, with our most common courier rate set at £4.99 for orders of 5kg (enough for 5 litres of oil).
We give an estimate of delivery dates as you shop and in your basket. The vast majority of items are held in stock and dispatched from our UK warehouse and we'll do all we can to get your order to you as quickly as possible.
"Popular in track and rally gearbox and differential applications."
Free Shipping Over £75!
UK mainland, standard shipping*
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We replace any shipping damages
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