Hydraulic Radiator RE21897 AR79501 for John Deere Tractor 4040 4240 4440 is backordered and will ship as soon as it is back in stock.
Powering 10,000+ Commercial Fleets
One Year Warranty
Easy 60-day Return
Expert support & Fitment Guarantee
Maintaining your heavy machinery at optimal performance is essential for operational efficiency and longevity. This Hydraulic Radiator, designed to meet OEM specifications, ensures reliable fitment and durability for agricultural and construction equipment.
Manufactured by Fab Heavy Parts, this hydraulic radiator is engineered to provide consistent cooling performance, critical for the demanding environments in which John Deere tractors operate. Its robust construction and precise compatibility with specific engine models guarantee dependable service life and reduced downtime, supporting your business’s productivity.
Condition: new, aftermarket
Fab Heavy Parts is excited to offer a 12-month warranty on all new replacement/aftermarket parts starting from your original purchase date.
Enjoy peace of mind with Fab Heavy Parts!
For more warranty details, please check out our warranty policy.
Estimated delivery time 3-6 workdays
We don't have a core charge for any products.
Engineered with industrial-grade aluminum alloy cores and precision-brazed fins, our hydraulic radiators deliver maximum heat dissipation under sustained heavy-load operation — keeping your equipment running at optimal temperature in the most demanding environments.
Every Fab Heavy Parts radiator is cross-referenced against OEM part numbers to ensure drop-in compatibility. No modifications, no adapters — a direct replacement that installs in the same time as the original, verified against factory service manuals.
High-density fin spacing and optimized core geometry maximize heat transfer surface area, delivering cooling performance that meets or exceeds OEM thermal specifications — even under continuous peak-load operation on excavators, loaders, and heavy construction equipment.
OEM-grade quality at a competitive price — with the support and warranty to back it up
| Feature | Fab Heavy Parts | OEM Dealer | Generic Brand |
|---|---|---|---|
| OEM Cross-Reference Verified | ✓ | ✓ | ✗ |
| Industrial-Grade Alloy Core | ✓ | ✓ | Varies |
| 1-Year Warranty | ✓ | Limited | ✗ |
| Expert Technical Support | ✓ | Dealer Only | ✗ |
| Competitive vs OEM Pricing | ✓ | ✗ Premium | ✓ |
| Pressure-Tested Before Ship | ✓ | Varies | ✗ |
Manufactured to OEM specifications with industrial-grade materials and precision tolerances.
Every radiator backed by our comprehensive 1-year parts warranty with no-hassle claims.
Our parts specialists verify fitment and answer installation questions before and after purchase.
To start a return, please use our return portal. Items should be unused, not installed, clean, in their original packaging and accompanied by proof of purchase. Please contact support if you need help with the current return instructions or applicable costs.
Orders placed within one hour and not yet fulfilled can be cancelled from the customer order page. After one hour, or once the order has been fulfilled, please contact support for the next steps.
Available payment methods include major credit and debit cards, PayPal, Apple Pay, Google Pay, Shop Pay and Klarna. Availability can vary by order and checkout, so the payment options shown at checkout apply.
Most packages delivered within New Zealand arrive in 4–7 working days. Packages over 68 kg can take 5–10 working days. Timing can also vary with product availability, destination, shipping service, customs processing, weekends, public holidays or carrier delays.
New Zealand orders are billed in NZD.
Compare the listed part number, machine make, model, engine details and specifications with your equipment records. Fitment can vary by configuration and serial range, so contact support with the part number and machine details if you are unsure. Fitment should be confirmed before installation.
Mailed & Couriered Shipments (Online Shopping)
For NZ$1,000 or less goods value, no customs duty or border entry fees are collected by the New Zealand Customs Service.
For over NZ$1,000 customs value, formal customs entry is required and the customer must pay 15% GST, applicable customs duties, and border processing fees such as the Import Entry Transaction Fee.
Maintaining your heavy machinery at optimal performance is essential for operational efficiency and longevity. This Hydraulic Radiator, designed to meet OEM specifications, ensures reliable fitment and durability for agricultural and construction equipment.
Manufactured by Fab Heavy Parts, this hydraulic radiator is engineered to provide consistent cooling performance, critical for the demanding environments in which John Deere tractors operate. Its robust construction and precise compatibility with specific engine models guarantee dependable service life and reduced downtime, supporting your business’s productivity.
Condition: new, aftermarket