Mountfield SP555V SP53 SP425R Honda GCV145 GCV170 Lawnmower Engine Service Kit
This is an engine service kit suitable for the following models of Mountfield lawnmowers
- HP425 2L0431038/M19
- SP46 Elite 2L0486038/M19
- SP53 Elite 295546038/M19
- SP425 2L0432038/M19
- SP425R 299439038/M19
- SP465R 299489038/M19
- SP485HW V 294507838/M19
- SP505RV 294519038/M19
- SP535HW 294556038/M19
- SP535HWV 294557838/M19
- SP555V 294563038/M19
This kit is suitable for the above models fitted with the following models of Honda engine
- GCV145
- GCV170
This kit comprises of the following parts
- High Quality aftermarket Honda air filter panel
- Genuine Honda 10w-30 engine oil - 600ml bottle
- Genuine NGK spark plug
Part Number OSK845870
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.