Details
John Deere 6466AF Power Unit Early w/ 6466T, 6466A engine
John Deere 762A Scraper Early w/ 6466T, 6466A engine
John Deere 4840 Tractor w/ 6466T, 6466A engine
John Deere 740A Log Skidder Early w/ 6466T, 6466A engine
John Deere 6466DF Power Unit w/ 6466D engine
John Deere 4240 Tractor w/ 6466D engine
John Deere 6620 Combine w/ 6466D engine
John Deere 4440 Tractor w/ 6466T, 6466A engine
John Deere 644C Wheel Loader Early w/ 6466T, 6466A engine
John Deere 6602 Combine After 163500 w/ 6466T, 6466A engine
John Deere 8430 Tractor w/ 6466T, 6466A engine
John Deere 6622 Combine Early w/ 6466T, 6466A engine
John Deere 646C Compactor Early w/ 6466T, 6466A engine
John Deere 743A Feller Buncher Early w/ 6466T, 6466A engine
John Deere 5720 Forage Harvester Early w/ 6466T, 6466A engine
John Deere 6466TF Power Unit Early w/ 6466T, 6466A engine
John Deere 7720 Combine Early w/ 6466T, 6466A engine
John Deere JD743 Feller Buncher w/ 6466T, 6466A engine
John Deere 4640 Tractor w/ 6466T, 6466A engine
John Deere 6620 Combine Early w/ 6466T, 6466A engine
John Deere 4050 Tractor Thru 6509 w/ 6466D engine
John Deere 8450 Tractor Early w/ 6466T, 6466A engine
John Deere 8440 Tractor w/ 6466T, 6466A engine
John Deere 9940 Cotton Picker Early w/ 6466T, 6466A engine
John Deere 9500 Combine Early w/ 6076T, 6076A engine
John Deere 748E Log Skidder w/ 6076T, 6076A engine
John Deere 740E Log Skidder w/ 6076T, 6076A engine
John Deere 4850 Tractor w/ 6466T, 6466A engine
John Deere 9600 Combine Early w/ 6076T, 6076A engine
John Deere 7722 Combine Late w/ 6466T, 6466A engine
John Deere 762A Scraper Late w/ 6466T, 6466A engine
John Deere 9950 Cotton Picker w/ 6466T, 6466A engine
John Deere 646C Compactor Late w/ 6466T, 6466A engine
John Deere 8820 Combine Late w/ 6466T, 6466A engine
John Deere 726B Scraper Thru 818908 w/ 6466T, 6466A engine
John Deere 644EH Wheel Loader w/ 6076T, 6076A engine
John Deere 8450 Tractor Late w/ 6466T, 6466A engine
John Deere 644C Wheel Loader Late w/ 6466T, 6466A engine
John Deere 5730 Forage Harvester w/ 6466T, 6466A engine
John Deere 5720 Forage Harvester Late w/ 6466T, 6466A engine
John Deere 9940 Cotton Picker Late w/ 6466T, 6466A engine
John Deere 4650 Tractor w/ 6466T, 6466A engine
John Deere 693C Feller Buncher Early w/ 6466T, 6466A engine
John Deere 4560 Tractor w/ 6076T, 6076A engine
John Deere 748G Log Skidder Early w/ 6076T, 6076A engine
John Deere 4760 Tractor w/ 6076T, 6076A engine
John Deere 4055 Tractor w/ 6076T, 6076A engine
John Deere 4255 Tractor w/ 6076T, 6076A engine
John Deere 4455 Tractor w/ 6076T, 6076A engine
John Deere 6466AF Power Unit Mid w/ 6466T, 6466A engine
John Deere 4555 Tractor w/ 6076T, 6076A engine
John Deere 740G Log Skidder Early w/ 6076T, 6076A engine
John Deere 4755 Tractor w/ 6076T, 6076A engine
John Deere 644EZ Wheel Loader w/ 6076T, 6076A engine
John Deere 6076 Power Unit Early w/ 6076T, 6076A engine
John Deere 644E Wheel Loader w/ 6076T, 6076A engine
John Deere 644ER Wheel Loader w/ 6076T, 6076A engine
John Deere 9960 Cotton Picker Early w/ 6076T, 6076A engine
John Deere 4455 Tractor Late w/ 6076T, 6076A engine
John Deere 9960 Cotton Picker Late w/ 6076T, 6076A engine
John Deere 740A Log Skidder Late w/ 6466T, 6466A engine
John Deere 9970 Cotton Picker Early w/ 6076T, 6076A engine
John Deere 772B Grader Late w/ 6076T, 6076A engine
John Deere 892ELC Excavator w/ 6076T, 6076A engine
John Deere 4050E Tractor w/ 6466T, 6466A engine
John Deere 6076 Power Unit Late w/ 6076T, 6076A engine
John Deere 8570 Tractor After ESN 568444 w/ 6076T, 6076A engine
John Deere 6610 Forage Harvester Early w/ 6076T, 6076A engine
John Deere 770BH Grader Late w/ 6076T, 6076A engine
John Deere 9500 Combine Late w/ 6076T, 6076A engine
John Deere 850C Crawler Early w/ 6076T, 6076A engine
John Deere 8570 Tractor Thru ESN 568444 w/ 6076T, 6076A engine
John Deere 8560 Tractor Late w/ 6076T, 6076A engine
John Deere 770A Grader Late w/ 6466T, 6466A engine
John Deere 644C Wheel Loader Late w/ 6466T, 6466A engine
John Deere 892DLC Excavator w/ 6466T, 6466A engine
John Deere 772BH Grader Early w/ 6466T, 6466A engine
John Deere 6076AFN Power Unit w/ 6076AFN engine
John Deere 772A Grader Late w/ 6466T, 6466A engine
John Deere 646C Compactor Late w/ 6466T, 6466A engine
John Deere 8300 Tractor Thru TSN 9999 w/ 6076T, 6076A engine
John Deere 6466AF Power Unit Late w/ 6466T, 6466A engine
John Deere 792DLC Excavator w/ 6076T, 6076A engine
John Deere 6622 Combine Late w/ 6466T, 6466A engine
John Deere 6620 Combine Late w/ 6466T, 6466A engine
John Deere 6466TF Power Unit Late w/ 6466T, 6466A engine
John Deere 762B Scraper Thru 808908 w/ 6466T, 6466A engine
John Deere 7720 Combine Late w/ 6466T, 6466A engine
John Deere 9965 Cotton Picker w/ 6076T, 6076A engine
John Deere 644D Wheel Loader w/ 6466T, 6466A engine
John Deere 790D Excavator w/ 6466T, 6466A engine
John Deere 772BH Grader Late w/ 6076T, 6076A engine
John Deere 770B Grader Late w/ 6076T, 6076A engine
John Deere 9600 Combine Late w/ 6076T, 6076A engine
John Deere CTS Combine w/ 6076T, 6076A engine
John Deere 8100 Tractor Thru TSN 9999 w/ 6076T, 6076A engine
John Deere 7700 Tractor w/ 6076T, 6076A engine
John Deere 7800 Tractor w/ 6076T, 6076A engine
John Deere 8200 Tractor Thru TSN 9999 w/ 6076T, 6076A engine
John Deere 690C Excavator w/ 6466T, 6466A engine
John Deere 644G Wheel Loader Early w/ 6076T, 6076A engine
John Deere 762A Scraper Late w/ 6466T, 6466A engine
John Deere 4955 Tractor w/ 6076T, 6076A engine
John Deere 4455 Tractor Early w/ 6466T, 6466A engine
John Deere 793D Feller Buncher w/ 6466T, 6466A engine
John Deere 690CR Excavator w/ 6466T, 6466A engine
John Deere 4960 Tractor w/ 6076T, 6076A engine
John Deere 770BH Grader Early w/ 6466T, 6466A engine
John Deere 8560 Tractor Early w/ 6076T, 6076A engine
John Deere 4450 Tractor w/ 6466T, 6466A engine
John Deere 693C Feller Buncher Late w/ 6466T, 6466A engine
John Deere 772B Grader Early w/ 6466T, 6466A engine
John Deere 850B Crawler w/ 6466T, 6466A engine
John Deere 772AH Grader Late w/ 6466T, 6466A engine
John Deere 743A Feller Buncher Late w/ 6466T, 6466A engine
John Deere 790 Excavator w/ 6466T, 6466A engine
John Deere 792 Excavator w/ 6466T, 6466A engine
John Deere 770B Grader Early w/ 6466T, 6466A engine
John Deere 4250 Tractor w/ 6466T, 6466A engine
John Deere 6076 Power Unit Early w/ 6076T, 6076A engine
John Deere 770AH Grader Late w/ 6466T, 6466A engine
Warranty Information
Overview
We stand behind every part we sell — new, rebuilt, or used. While RF Engine is not the manufacturer and cannot extend additional warranties, we do guarantee that each product will arrive as described, in usable condition, and free from material defects or misrepresentation.
Warranty Coverage
- New Parts: Covered under the original manufacturer’s warranty. All terms and coverage are set by the manufacturer. Copies available upon request.
- Rebuilt, Reconditioned, and Used Parts: Backed by an inspection-only warranty unless otherwise stated. As with new parts, RF Engine cannot provide further warranty coverage beyond the manufacturer’s terms.
- No Additional Warranty: RF Engine does not offer any express or implied warranties. However, if an issue arises, we are here to assist and will support you through any applicable manufacturer claim process.
Our Guarantee
All parts are guaranteed to be in the condition stated at the time of sale and free from misrepresentation. If something isn’t right, we’ll work with you to resolve it — including returns, exchanges, or refunds when appropriate.
- We sell parts — we don’t make them — but we stand behind what we sell.
- Guaranteed to match the description or your money back.
- Manufacturer’s warranty applies where available; we’ll help if you ever need it.
Used Parts — What to Expect
Used parts are cleaned, inspected, and guaranteed to be usable, but please note:
- They often have signs of wear, surface rust, blemishes, or cosmetic imperfections.
- They may include old gaskets or residue and likely require further cleaning or machining before installation.
- They are not refurbished, remanufactured, or restored to like-new appearance.
We recommend careful inspection and strongly encourage installation by a qualified heavy-duty diesel mechanic.
- Worn, not worn out — used parts may show signs of age but are fit for service.
- All used parts are tested for usability, not appearance.
Questions?
If you have questions about a part’s condition, warranty, or how we handle returns and guarantees, feel free to contact us. We’re here to help.
Last Updated: June 22, 2025
All specifications and numbers are provided for reference only and should be independently verified before use. While we guarantee our parts match their descriptions and accept returns for any discrepancies, we cannot be held liable for installation costs, modifications, or consequential damages. Questions about compatibility? Contact our parts experts at 800-828-6943, sales@dieselcranks.com, or via live chat, Mon-Fri 8am-5pm EST.