STC4735 | Series III & 90/110 Radiator / Expansion Tank Cap

Replacement Land Rover radiator / expansion tank cap (STC4735) for Series III and early 90/110 cooling systems. This cap is used where the vehicle takes the earlier pressure cap type rather than the later plastic expansion tank cap.

  • Fits Land Rover Series III and early 90/110 cooling systems using this cap type
  • Commonly used as a radiator cap on Series vehicles and an expansion tank cap on early 90/110 metal tank setups
  • Supersedes Land Rover part number 509767
  • Useful replacement if the existing cap seal is damaged, weak, corroded or no longer holding pressure

£8.83 inc. UK VAT

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Part Number: STC4735 Category:
Description

Land Rover STC4735 radiator and expansion tank cap

STC4735 is the earlier Land Rover cooling system pressure cap used on Series III vehicles and early 90/110 applications with the matching radiator or metal expansion tank arrangement. It supersedes 509767.

A weak or damaged cap can allow coolant loss, reduce system pressure or leave staining around the filler neck. If the seal is split, hardened, rusty or no longer seating properly, replacement is a simple and sensible cooling system maintenance job.

Check your existing cap and filler neck before ordering, especially on older vehicles where radiators, expansion tanks and cooling system parts may have been changed over the years.

For coolant and other related cooling system parts, see our Land Rover antifreeze and coolant range.

Additional information
Weight0.1 kg
Dimensions10 × 10 × 4 cm
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  • Return within 14 days of delivery of your order.
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  • Faulty items: we’ll cover return postage—keep your receipt.
  • Refunds & Replacements are dealt with once the original item is received and inspected.
Non-returnable: non-stock/order in/special orders and genuine Land Rover parts (unless faulty).

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14 days from receipt of your order.
Who pays return postage?
We cover it if the item is faulty—please keep your postage receipt.
What items are non-returnable?
Non-stock/special orders and genuine Land Rover parts (unless faulty).
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All parts sold by Twinwoods 4x4 are covered by a minimum 12 month warranty against manufacturing defects.

Some products and brands may carry a longer warranty period where this is provided by the manufacturer. Where applicable, this will normally be stated on the individual product page.

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