Husqvarna 21" Medium-Lift Lawnmower Blade Replaces 532138971 & 532138498
Replacement medium-lift lawnmower blade fits Husqvarna models listed
- CTH171, CTH191, CTH220 Twin, LOYTH20F42 T, LT131, LT140, LT152, LT16542, LT18542, LT2216, LTH126, LTH1342, LTH152, LTH1542, LTH171, LTH1742, LTH1742 Twin, LTH1842, LTH2038 R, LTH2042, LTH2142, LTH2142 D, LTH2142 DR, YT130, YT150, YT155, YT16542, YT1942 T, YTH130, YTH135, YTH140, YTH150, YTH150 Twin, YTH150 XP, YTH151, YTH1542 XP, YTH1542 XPT, YTH155, YTH160, YTH170, YTH180, YTH180 Twin, YTH180 XP, YTH184 T, YTH1842 XP, YTH200, YTH2042, YTH2042 TD, YTH2042 XP, YTH20B42 T, YTH20F42 T, YTH210 XP, YTH2242, YTH2242 T
42" deck requires a set of 2
*Please note this listing is for a single blade you will need to choose the quantity you require for your deck*
These blades replace the following Husqvarna OEM part numbers
- 532127843
- 532138498
- 532138971
Spec
- Length 21" / 533.4mm
- Center Hole 5 pt. star
- Width 2 1/4" / 57.2mm
- Thickness of 0.149" / 3.8mm
- Packaging type Branded label
These blades also replace the following manufacturers OEM part numbers
- Ariens 21546095
- AYP 127843, 134149, 138498, 138971, 138971X431, 531307224, 532134149, 532138971, 917127843, 917131323, 917138498MS, 917532138498
- Craftsman 127843, 138498, 138971
- Husqvarna 532127843, 532138498, 532138971
- McCulloch 532 13 89-71
- Poulan 531307224, 532138971, PP24004
- Snapper 704429
Required Amounts for a full set
- AYP Requires 2 for 42" deck
- Viking Requires 2 for 42" deck
Part Number 340-178
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.