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Major Engine Overhaul Kit PART #: OK20291

Major Engine Overhaul Kit
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  • Major Engine Overhaul Kit - OK20291

Description & Notes

Part # OK20291
Notes & Description 6 CYL BLOCK: R74123, R72130, CONN ROD: R63959
Bore: 5.12"130mm, Pin: 2.0", 50.8mm
Associated Items A-AR72351 O-Ring 6
A-AR82355 Rings, Piston 6
A-IK20291 In Frame Engine Overhaul Kit 1
A-N51168 Snap Ring 12
A-RE20275 Piston 6
A-RE34009 Gasket, Head 1
A-R35431 Lock, Valve 12
A-R40366 Cap, Valve 12
A-R49569 Spring, Valve Inner 12
A-R49571 Spring, Valve Outer 12
A-R53192 Guide, Intake & Exhaust Valve 12
A-R59894 Insert, Intake Valve 6
A-R60537 Insert, Exhaust Valve 6
A-R63982 Valve, Exhaust 6
A-R65629 Liner, Cylinder 6
A-R75690 Valve, Intake 6
A-R81086 Rotator, Valve 12
A-VTK84089 Valve Train Kit 1
A-10152 Lucas Assembly Lube (8 oz) 1
A-10153 Assembly Lube; Case of 12-8ozbottles 1
Kit Components Piston Liner Kit A-RE20291 6.00
Bearing, Main A-AR101268 STD 6.00
A-AR104122 .010 6.00
A-AR104123 .020 6.00
A-AR104124 .030 6.00
Bearing, Thrust A-AR101269 STD 1.00
A-AR104126 .010 1.00
A-AR104127 .020 1.00
A-AR104128 .030 1.00
Washer Set, Thrust A-AR89622 STD 1.00
A-AR89971 .007 1.00
Bearing, Conn Rod A-AR101271 STD 6.00
A-AR104130 .010 6.00
A-AR104131 .020 6.00
A-AR104132 .030 6.00
Seal, Front Crankshaft A-AR49025 1.00
Seal, Rear A-RE13310 1.00
Bushing, Conn Rod A-R69045 w/ eng SN <33185 use R60 6.00
Bolt, Conn Rod A-R66453 12.00
Bearing, Camshaft A-R46903 4.00
Package Quantity 1

Product Fit

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Additional Information

Did you know the OK20291 major engine overhaul kit fits industrial/construction machines and tractors? TractorJoe does, which is why we strive to verify our parts, ensuring they fit your John Deere properly. This major engine overhaul kit is not only made for the John Deere 850 industrial/construction machine, but also fits the John Deere 855, 762, 860B, 862, 890, 890A, 8630, and 8640.

Whether you have the 850, the 855, or something else, John Deere major engine overhaul kits are expensive and thats why we sell major engine overhaul kits direct at significantly lower prices than your John Deere dealer. You can save up to 70% with TractorJoe.

We back our parts with an industry leading warranty. Whether you have the 850, 855, or 762, it's important to keep your equipment running smoothly. So when something breaks in your John Deere, TractorJoe can help.

It doesn't matter if you're installing our major engine overhaul kit in your John Deere industrial/construction machine, John Deere tractor, or something else, we'll be here for you. Our staff knows a lot about John Deere equipment, and our Q and A community is there for any other questions you may have.

Major Engine Overhaul Kit

PART #: OK20291

Price: $2,607.34


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Frequently Asked Questions
When will I get my items?
Once your items have shipped it takes around 2 to 4 days to arrive at your location. You can track the shipment to find the expected delivery date or if there are any issues that have caused a shipping delay. Destinations outside the continental US will take additional time for delivery.
What if I will not be available to receive my shipment?
We've got you covered! Delivery carriers will generally let you leave a signed note on your door with instructions. UPS will generally leave a ground shipment at the door in rural and suburban locations without a note. You can also instruct the UPS driver to take it back to the customer service center for pickup if you do not want it left. For detailed information please contact the delivery carrier.
Can you ship to an APO/FPO address?
We unfortunately are no longer able to ship to AFO/FPO addresses.
How much is shipping?
Shipping costs vary based on product weights and where you're sending it to. You can calculate shipping costs in the shopping cart or checkout page.