Details
Hesston 566, 580
to eng.s/n 600,000 and from eng.s/n 700,000
OEM Part Number Cross Reference(s): 1940096, 1909560
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
Continental Z120 Gas Connecting Rod Bolt, 1046761M1
Ford 201 Diesel Crankshaft Spacer, C5NE6B306A
Deutz F3L912 Diesel Full Gasket Set (2910182)
Perkins D152 Diesel Cam Bearing (31134128)
Perkins 3A.152 Diesel Valve Cover Gasket, 490491
Allis Chalmers 175 Diesel Exhaust Valve (74513687)
Komatsu KM S/SA6D125-1 Cylinder Head New 6151-11-1102 *BARE* 1 Cyl Dsl
Fits Cummins 6C Oil Tube New 3902091, 3906327, 3909318
Cummins 4B, 6B, QSB New Intake Valve Guide | Replaces 3904408, J904408
Fits Ford Truck 6.0L 16V Cylinder Head Loaded 20 mm dowel New
Thrust Washer H236R for John Deere 100 Gas
Perkins T3.152.4 Diesel Fuel Injector Seal Spacer, 33813126
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.