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Diverter Knob for Jacuzzi J400 Hot Tubs - 6540-439
Regular price £12.99
Unit price
All about me
A genuine Jacuzzi diverter knob for the later J400 hot tubs.
A diverter moves water between groups of jets so you can send more power to the seat you are in. If the knob is cracked, loose or spins without moving the water, the knob or the gate valve behind it is usually the part that has failed.
Fits these hot tubs
- Jacuzzi J435 and J445 made from October 2017
- Jacuzzi J475 and J485 made from 2019 to 2025
- Jacuzzi J425 and J495 made from 2020 to 2025
Check before you order
- Other J400 models from 2007 use knob 2540-533.
Good to know
- Diverter knob only
- Grey diverter nut: 6540-455
Part number: 6540-439. Not sure it is the right part? Call us on 01482 212322 with your hot tub model, or send us a photo of the old part, and we will check it for you.
About this part
A diverter moves water between groups of jets so you can send more power to the seat you are in. If the knob is cracked, loose or spins without moving the water, the knob or the gate valve behind it is usually the part that has failed.
- Part number
- 6540-439
- Made by
- Diverter knob only
- Grey diverter nut: 6540-455
Will it fit my hot tub or swim spa?
Made for these
- J435 and J445 made from October 2017
- J475 and J485 made from 2019 to 2025
- J425 and J495 made from 2020 to 2025
Your tub or swim spa not listed? This part may still fit it. Email a photo of the old part to online@outdoorlivinghottubs.co.uk, or call 01482 212322, and we will check before you order.
Check it matches before you order
Other J400 models from 2007 use knob 2540-533.
Not sure? Email a photo of the old part and your model and we will check it before you pay.
Parts, chemicals and hot tub accessories
Free delivery
on orders over £50
Under £50 it is a flat £2.99. Delivered in 48 hours, Monday to Friday.
Your basket with this part
£12.99: add £37.01 for free delivery
48-hour delivery
Monday to Friday, to anywhere in the UK.
Changed your mind?
Change or cancel before 3pm on the day you order.
Part details
- Part number
- 6540-439
- Made by
- Part type
Talk to a person
Call with your hot tub or swim spa model, or email a photo of the old part to online@outdoorlivinghottubs.co.uk. Sales lines are open Monday to Friday, 10am to 5pm.