Blade Adapter for Craftsman, Husqvarna Lawn Mower 421176 – OEM Part
The 421176 blade adapter is an original OEM part designed to securely fasten the blade to a 25 mm engine shaft. It features an integrated 2" pulley built to drive a 3/8" traction belt. This adapter ensures proper alignment and effective power transmission for a stable and safe cut. It also includes two alignment pins spaced 1 7/8" apart (center to center) for precise blade positioning. Compatible with various lawn mower models from Craftsman, Husqvarna, Poulan Pro, RedMax, and Jonsered.
Product Details
- Genuine OEM quality part
- Integrated 2" pulley for 3/8" traction belt
- Fits 25 mm engine shaft
- Two blade alignment pins (1 7/8" center to center)
- Safe and precise cutting performance
- Compatible with Craftsman, Husqvarna, Poulan Pro, RedMax, and Jonsered mowers
- Easy installation
Dimensions
- Inner diameter (ID): 25 mm
- Inner depth: 2 3/8" (60.3 mm)
- Total height: 2 7/8" (73 mm)
- Pin spacing: 1 7/8" (47.6 mm center to center)
- Integrated pulley diameter: 2" (50.8 mm)
Compatible References
Replaces the following part numbers:
532189179, 189179, 532085543
Main Reference
421176
Installation Tip
Tighten the blade bolt firmly to ensure safety and prevent play that could damage the adapter or the blade.
Customer Service
Need help confirming compatibility or have a question? Our team is ready to assist you quickly and efficiently.