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Ideal Washer 177951

Ideal

Ideal Washer 177951

Ideal washer 177951 (4034842) for Evojet commercial boiler models, sealing the joint between mating components to prevent leaks.

At a glance

  • Part type: Washer
  • Appliance family: Ideal Commercial Evojet
Manufacturer part no.
177951
Showing prices

£52.16

£43.47 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 Ideal 177951 is a washer supplied for Ideal Commercial heating appliances. It sits between mating faces at a joint and compresses under load to form a seal, stopping water from escaping past the connection. The same component is listed under the alternative number 4034842, so either reference can be used when identifying the part.

Signs this part needs replacing

  • Water weeping or dripping from the joint the washer seals
  • A chalky limescale trail or rust staining around the connection
  • The washer looks flattened, hardened or cracked when the joint is opened
  • Repeated pressure loss traced to a weeping joint
  • Corrosion or pitting on the mating faces where the washer sits

Before you order

  • Confirm the appliance model and, where available, the serial number against the compatibility list
  • Cross-reference the alternative number 4034842 if the existing washer is marked with it
  • Inspect the mating faces while the joint is open and replace any other seals disturbed during the repair
  • Keep the joint clean and free of old sealant or debris before fitting the new washer

Not sure which part?

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