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Johnson & Starley Pilot Burner Assembly J65MAF BOS02397/4

Johnson & Starley

Johnson & Starley Pilot Burner Assembly J65MAF BOS02397/4

Johnson & Starley pilot burner assembly BOS02397/4 for Hi-Spec warm air units, GC number E39-538.

At a glance

  • Part type: Pilot burner assembly
  • Also known as PILOT-BURNER-ASY-NATURAL-GAS, 0705140, 1690549
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
BOS02397/4
GC number
E39-538
Showing prices

£39.01

£32.51 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 Johnson & Starley BOS02397/4 is a pilot burner assembly for the Hi-Spec range of warm air units. It carries the pilot injector and burner head that produce the small standing flame used to light the main burner. The flame also provides the signal that proves ignition to the appliance's flame supervision circuit, so a correctly formed pilot flame is essential for reliable running.

Signs this part needs replacing

  • The pilot flame goes out as soon as the gas control knob is released
  • No pilot flame is visible at the burner head with gas available
  • The pilot flame is weak, yellow, lifting or will not hold a steady shape
  • The main burner repeatedly fails to light from the pilot
  • Sooting, corrosion or a blocked injector is visible on the pilot burner body

Before you order

  • Confirm your appliance model and GC number against the compatibility list below.
  • Match the existing part number BOS02397/4 before ordering.
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.

Not sure which part?

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