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Alpha Main Wiring Assembly Complete 1.035371

Alpha

Alpha Main Wiring Assembly Complete 1.035371

Main wiring assembly for Alpha InTEC 2 20SE and 30SE gas boilers, providing the complete internal wiring harness.

At a glance

  • Appliance family: Alpha InTEC 2 SE
  • Also known as 1258883
Manufacturer part no.
1.035371
Showing prices

£116.50

£97.08 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 Alpha main wiring assembly complete (part number 1.035371) is a full wiring harness for the Alpha InTEC 2 SE range of gas boilers. It carries the electrical connections between the boiler's control components and the parts they serve. This assembly is supplied with all components.

Signs this part needs replacing

  • Boiler fails to power up or intermittently loses power to controls
  • Frayed, cracked or heat-damaged wiring insulation
  • Scorched, discoloured or loose connector terminals
  • Fault codes relating to component communication or sensor circuits
  • Visible damage to the harness after a component replacement or service

Before you order

  • Confirm your boiler model and GC number match the fitment list above
  • Check the existing harness connectors and pin layout against the part
  • Isolate the electrical supply before removing or fitting the assembly
  • Verify the part number on the existing wiring assembly where visible

Not sure which part?

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