


Mountfield WBE140 Fuel Cap Fits SP533 S501R PD SP45 SP42 118550943/0
Genuine Mountfield Fuel Cap – Part No. 118550943/0
This is a genuine Mountfield replacement fuel cap, manufactured to the highest standards and designed as an exact replacement for the original part.
Compatible Mountfield Engine Models
- WBE140
- WBE0701
- WBE0702
Compatible Mountfield Lawnmower Models
- HP454 (2016, 2017, 2018)
- HP46 (2019)
- S421 HP (2019-2020)
- S421 PD (2019-2020)
- S421R HP (2019-2021)
- S421R PD (2019-2021)
- S461R PD (2016, 2017, 2018)
- S461R PD ES (2016, 2017)
- S481 HP (2017, 2018, 2019)
- S481 PD (2017, 2018)
- S481 PD ES (2016, 2017, 2018)
- S501R PD (2016, 2017, 2018)
- SP160R (2022-2024)
- SP164 (2019-2025)
- SP185 (2022-2025)
- SP220 (2025)
- SP41 (2022-2025)
- SP42 (2019-2025)
- SP45 (2017, 2018)
- SP454 (2016-2020)
- SP46 (2019-2025)
- SP51 (2022)
- SP53 (2017-2025)
- SP533 (2015, 2016, 2017, 2018)
- SP533 ES (2017)
Key Details
- Part Number: 118550943/0
- Direct OEM replacement for easy fit and reliable performance
- Maintains fuel system integrity and prevents leaks
Ensure your Mountfield mower stays in top working condition with this genuine replacement fuel cap.

FAQ
Frequently Asked Questions
Questions we get asked by our customers. If you need more help please get in touch via our chat.
We aim to dispatch all orders within 1 business day. Orders placed before 2pm are usually shipped the same day.
We ship 99% of our orders via Royal Mail. If you select the free shipping option, you will typically receive your parts within 4 working days.
We stock both genuine parts and premium aftermarket alternatives under our own brand, HardRidge Parts, designed for durability and performance.
Each product page includes compatibility information. If you’re unsure, just contact us with your model number—we’re happy to help.
Look for a sticker on the lawnmower deck—it will show the model year and often an ART number. We can identify your machine using that information.
We offer a 30-day return policy. Parts must be unused and in their original condition. Please see our Returns Policy page for full details.
At the moment, we only ship within the UK.
Orders under £30 are sent via Royal Mail 2D tracking, which provides delivery confirmation but not live updates. Orders over £30 are sent with a fully tracked service via Royal Mail or Evri.
You can email us atsales@outdoorspares.comor use the contact form on our Contact Us page. We typically respond within 24 hours on business days. We also offer live chat and usually reply straight away, though during busy periods it may take a little longer.