Details
John Deere JD646 Compactor w/ 6404T, 6404A engine
John Deere 7020 Tractor Early w/ 6404T, 6404A engine
John Deere JD690A Excavator w/ 6404T, 6404A engine
John Deere JD644 Wheel Loader w/ 6404T, 6404A engine
John Deere 4520 Tractor w/ 6404T, 6404A engine
John Deere JD644A Wheel Loader w/ 6404T, 6404A engine
John Deere 4620 Tractor w/ 6404T, 6404A engine
John Deere JD690 Excavator w/ 6404T, 6404A engine
John Deere 5200 Forage Harvester Early w/ 6404T, 6404A engine
John Deere 4320 Tractor w/ 6404T, 6404A engine
John Deere 4000 Tractor w/ 404D engine
John Deere JD600 Wheel Tractor After 200999 w/ 404D engine
John Deere 105 Combine After 19000 w/ 404D engine
John Deere 4020 Tractor After 200999 w/ 404D engine
John Deere 6404 Power Unit Irrigation Engine w/ 404D engine
John Deere 6602 Combine Thru 1500 w/ 404D engine
John Deere 7700 Combine Thru 8000 w/ 404D engine
OEM Part Number Cross Reference(s): R46158
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
Recently Viewed
Allis Chalmers 6120T Diesel Crankshaft Gear, 74396173
Fits John Deere 6.381, 6.404 Camshaft R33778, NR33778
Detroit Diesel Camshaft Thrust Plate Seal, 23521894
Ford KSG416, 2274E Gas Piston Pin Bushing Set, F261447
Continental D202, DS202, PD202, DS6202 Gas Exhaust Valve, D600I262
Fits Mitsubishi MITS6D22T Camshaft OEM Remachined 6D22T
Cummins Dodge applications, 325HP @ 2900, HPCRI Pump has valve cover with intated wiring harness Head Stud Kit 2474202 Complete Reman Drop-In Engine | 55G4D325DDS
Massey Ferguson 3.152 Diesel (Perkins Indirect Injection) Inframe-Overhaul Engine Rebuild Kit
International DT-466E, 210-225HP Turbo= Turbo=1842216C92, Injector=1842576C91 WITH BRAKE (verify we have a core) Complete Reman Drop-In Engine | 54G4D210AFB
Engine Long Block Used Used Fits International BD282 ESN: 2793 BCN: 607488C1
Conversion Gasket Set
Waukesha VRD220 , VRD220S, VRD220TA Diesel Piston Pin Bushing, 216008
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.