4″ Knife Section Coarse Fits JD | H163131 Aftermarket.

Description:
Aftermarket knife section designed for 4-inch coarse crop platforms on JD headers. Built to replace the OEM blade unit and deliver reliable cutting performance in heavy cereals and coarse grain. Installed in the cutterbar of the header, this section helps maintain clean cuts and extended service life in demanding harvest conditions.

Type: Knife section — forged high-carbon steel, double-cut coarse tooth design
Replaces OEM: H163131
Function: Provides cutting edge and mounting interface for the header sickle bar; designed to handle heavy crop flow and rough stubble
SKU: DCP-H163131
Weight: Approx. 0.097 kg
Dimensions: Length: ~101 mm; Width: ~83 mm; Thickness: ~3 mm
Value: Factory to Farmer pricing — tough build, honest price
Fits Models: JD 600 Series platforms including 618, 620, 630, 635, 640, 645; and JD 700 Series draper heads 730, 740, 745 (confirm serial-specific fitment)

🚚 Delivery Time

Nationwide delivery in 3–5 business days.

🔁 Returns & Refunds

At Discount Combine Parts, we’re here to keep your operation running. If something’s not right, we’ll help make it right.

✅ Eligible Returns

• Unused, original condition
• Within 30 days of delivery
• Proof of purchase required
• Pre-approved by our team

⚠️ Some electrical/custom parts may not be returnable — check before buying.

🛠 Faulty or Damaged?

• Report within 7 days
• Include photos or video
• If confirmed, we’ll cover return shipping and offer a replacement, repair, or refund (per Australian Consumer Law)

🚫 Not Returnable

• Used/installed parts
• Items without prior approval
• Damage from incorrect use
• Sale/clearance items (change of mind)

📦 Start a Return
Email support@discountcombineparts.com.au with:

• Order number
• Reason for return
• Photos (if needed)

We’ll reply with next steps.

💵 Refunds
Processed to your original payment method within 5–10 business days after inspection.

Need help? Just reach out — that’s the Factory to Farmer difference.

Let me know if you'd like a version for social media, packaging inserts, or your Shopify store!

All parts listed on this website are aftermarket replacements and not original equipment manufacturer (OEM) products.
Any part numbers, brand names, or images are used strictly for reference purposes only.

At Discount Combine Parts, we supply premium-quality aftermarket components sourced directly from trusted factories. Our goal is simple — deliver top-tier performance at unbeatable value, Factory to Farmer