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Potterton Male Plug 290 T9 R 1 1/2 Inch 5140642

Potterton

Potterton Male Plug 290 T9 R 1 1/2 Inch 5140642

Male plug 290 T9 with an R 1 1/2 inch thread, part 5140642, for Potterton Commercial NXR3i boilers.

Manufacturer part no.
5140642
Showing prices

£7.20

£6.00 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Male Plug 290 T9 - R 1 1/2 Inch is a threaded plug used on Potterton Commercial boiler assemblies. It carries the Potterton part number 5140642 and is listed for the Potterton Commercial NXR3i range of sectional boilers. The plug closes off a threaded tapping in the boiler, sealing the opening against water or flue gas loss depending on where it is fitted.

Signs this part needs replacing

  • Weeping or visible water tracking from the plug seating
  • Corrosion, pitting or scale build-up on the plug body or thread
  • Damaged, crossed or flattened thread preventing a clean seal
  • The plug cannot be tightened down to seal, or has been deformed during removal

Before you order

  • Confirm the thread size required is R 1 1/2 inch before ordering
  • Check the appliance model against the NXR3i fit list above
  • Cross-check the part number 5140642 against the boiler's documentation or data plate
  • Confirm whether thread sealing tape or compound is needed separately for the joint

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.