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Vaillant Gasket (PK3) 108551

Vaillant

Vaillant Gasket (PK3) 108551

Vaillant gasket (PK3), part number 108551, for Mag CAR 11-2/0 and 14-2/0 water heaters.

At a glance

  • Appliance family: Mag CAR 11-2/0 and Mag CAR 14-2/0 water heaters
  • Also known as 1387130
Manufacturer part no.
108551
Showing prices

£9.67

£8.06 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 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

A Vaillant gasket, supplied under part number 108551 and designated PK3. It is a sealing component used on Mag CAR 11-2/0 and 14-2/0 water heater appliances, where it seals a joint against water or combustion gas leakage. The gasket is a service part intended for replacement when the existing seal has degraded.

Signs this part needs replacing

  • Visible water weeping or damp staining around the joint the gasket seals
  • The gasket has hardened, flattened or cracked with age and no longer sits proud of its seating
  • Traces of scale or corrosion product building up at the sealing face
  • A joint that continues to seep after the fasteners have been correctly tightened
  • The gasket is damaged, split or deformed on inspection during servicing

Before you order

  • Confirm the appliance model and whether it is the standard or R1 variant
  • Check the part number 108551 against the manufacturer's parts list for your appliance
  • Inspect the joint before ordering to confirm the gasket is the source of the leak and not a distorted or corroded sealing face
  • Check how many gaskets the joint requires so you have enough for the repair

Not sure which part?

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