Looking for a reliable manufacturing partner or bulk wholesale pricing for premium OPE replacement parts? This heavy-duty 21″ Lawn Mower Blade 7/16″ Center Hole – Replaces Exmark 42-1000 107-4276-03 42-1000-03 is precisely engineered from commercial-grade 40MnB boron steel to meet or exceed fleet maintenance standards. As a direct aftermarket replacement, it ensures optimal cutting performance and maximum durability in demanding lawn care environments.
Technical Specifications
| Blade Material | 40MnB (Premium Boron Steel) |
|---|---|
| Product Family | Mower Blades |
| Blade Length | 21″ |
| Blade Width | 2-7/8″ |
| Blade Thickness | 0.134″ |
| Center Hole Size | 7/16″ |
| Compatible Brands | Exmark |
OEM Cross Reference & Interchange Numbers
This premium 40MnB aftermarket lawn mower blade directly replaces the following original equipment manufacturer (OEM) part numbers. Please verify your brand and part number for a perfect fitment:
| Supported Brand | OEM Part Number / Cross Reference |
|---|---|
| EXMARK | 107-4276, 107-4276-03, 107-4276-03P, 20-2720, 20-2720-03, 23-0070, 26-0880, 3-8615, 42-1000, 42-1000-03, 5-0751 |
Compatible Lawn Mower Models
| Brand | Compatible Models / Notes |
|---|---|
| Exmark | 21-inch rear baggers |
| Toro | 21-inch rear baggers (specific models not confirmed) |
Fitment information is provided for reference. Confirm the OEM part number, equipment model and blade dimensions before ordering.
Wholesale & Bulk Supply Quotation
With over 25 years of experience in industrial parts manufacturing, we specialize in high-volume supply for commercial landscaping companies, professional repair shops, and regional lawn mower parts distributors.
- Volume Pricing: Tiered discounts and competitive factory-direct pricing for bulk orders.
- Fast Turnaround: Click “Add to Quote Request” above, and our OPE parts experts will send a custom wholesale offer within 24 hours.
- Flexible Supply Chain: Global logistics and reliable container/pallet shipping options available.
Fitment Note & Disclaimer: Always cross-reference your original machine manual, blade dimensions, and center-hole shape before submitting a quote request. OEM numbers and brand references (such as Exmark) are used strictly for compatibility identification purposes. Our products are top-tier aftermarket replacement parts manufactured from high-grade 40MnB steel and do not imply direct affiliation with the original equipment manufacturers.
