Bison
Bison RT+4 Trailed Offset Discs
The Bison RT+4 is a trailed offset disc harrow that breaks up soil, mixes crop residue, and levels fields using 26" notched discs and a heavy structural frame. Built for routine tillage where durability and consistent finish matter.
Key Features
- Manufacturer / Series: Bison RT+4
- Working widths: 12' (28 discs) or 13'8" (32 discs)
- Disc diameter: 26 inches (notched)
- Frame: 6" x 4" PTR structural steel for high torsional resistance
- Gang angle: Adjustable (3–5 positions) to control penetration and residue mixing
- Bearings: Oil-bath bearings for longer service intervals
- Hitch: Oscillating, adjustable eccentric pull hitch to follow ground contour
- Scrapers: Standard scrapers to reduce mud build-up on discs
- Configuration: Trailed offset design for easier transport and contour following
Ideal for: Farmers and ranchers needing a rugged tillage tool for residue management, seedbed prep, and field leveling with medium- to large-tractor power units.
Shipping Information
Your order is confirmed and sent to our warehouse team.
Equipment is prepared and crated for LTL freight shipment. Handling time is 5–7 business days. Delivery times may vary based on seasonality, product availability, and destination.
Shipped via LTL freight carrier within the contiguous US. Tracking information provided via email once your order ships.
Curbside delivery included. Liftgate service included for residential addresses. Inspect all equipment upon arrival and note any damage on the carrier’s delivery receipt before signing.
Freight shipping calculated per product at checkout. Liftgate service included for residential deliveries. Please inspect all equipment upon delivery and note any damage on the delivery receipt before signing.
Warranty Coverage
All equipment sold by American Grain Supply is backed by the full manufacturer warranty. Coverage varies by brand and product type — typically 1–2 years for structural components and 90 days for wear parts.
Return Policy
We accept returns within 30 days of delivery for unused, unassembled equipment in original packaging. A 15% restocking fee applies. Freight return costs are the buyer's responsibility. Contact us before returning any item.
Need Help?
Our team is available Monday through Friday, 8:00 AM – 5:00 PM EST.
Phone: (404) 667-2554
We can help with product questions, compatibility, shipping quotes, and order status.
The Bison RT+4 is a trailed offset disc harrow that breaks up soil, mixes crop residue, and levels fields using 26" notched discs and a heavy structural frame. Built for routine tillage where durability and consistent finish matter.
Key Features
- Manufacturer / Series: Bison RT+4
- Working widths: 12' (28 discs) or 13'8" (32 discs)
- Disc diameter: 26 inches (notched)
- Frame: 6" x 4" PTR structural steel for high torsional resistance
- Gang angle: Adjustable (3–5 positions) to control penetration and residue mixing
- Bearings: Oil-bath bearings for longer service intervals
- Hitch: Oscillating, adjustable eccentric pull hitch to follow ground contour
- Scrapers: Standard scrapers to reduce mud build-up on discs
- Configuration: Trailed offset design for easier transport and contour following
Ideal for: Farmers and ranchers needing a rugged tillage tool for residue management, seedbed prep, and field leveling with medium- to large-tractor power units.
Orders typically ship within 5–7 business days. Transit takes 3–8 business days via LTL freight carrier within the contiguous US. Freight cost is calculated per product and shown at checkout. Tracking provided via email. Inspect upon delivery.
Full manufacturer warranty included. Returns accepted within 30 days (15% restocking fee). Contact us before returning.
Phone: (404) 667-2554
Email: sales@americangrainsupply.com
Mon – Fri, 8 AM – 5 PM EST
You May Also Like
Equipment Buying Guide
Not sure what you need? Our comprehensive guide covers tractor matching, implement sizing, and what to look for when buying new equipment.
Read the Guide →About American Grain Supply
Real people, real answers. Learn how we cut out the dealer markup and ship factory-direct.
Learn More →Talk to an Expert
Call (404) 667-2554 or email us. We'll help you find the right equipment.
Contact Us →Shipping & Delivery
Freight calculated at checkout. Ships nationwide via LTL carrier.
Shipping Details →Returns & Warranty
30-day returns on unused equipment. Full manufacturer warranty on every product.
Return Policy →