Disc openers & blades
Precision Planting's number for John Deere discs is 14.5 inches. Heavy no-till wears them out sooner.
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PartsWear & maintenance
Disc openers & planter wear parts
The parts that wear out every season, for most makes. Tell us the make, model and row count and we'll price your options.
Wnot a V
As disc openers wear, the blades pull apart at the bottom and can cut a W-shaped furrow. Closing wheels may not be able to firm it, which can leave air around the seed instead of soil.
Source: Purdue Agronomy, AGRY-91-01
What wears out
Gauge wheels & arms
Gauge wheels set your depth. With worn tires, arms or pivot bushings, depth wanders row to row.
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Seed tube guards
Protect the seed tube and keep the blades from flexing in and pinching the furrow. Replace at 3/4 in., or 0.64 in. on SpeedTube guards.
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Closing system parts
The last thing to touch the seed. Worn closing parts leave open sidewalls and air pockets.
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Disc openers by planter
Wearparts Guaranteed True assemblies and blades we can get. Don't see yours? Ask.
Also on the shelf or a day away: bearings and dust caps, gauge wheel arm kits, press wheels, closing disc kits, tillage points and sweeps, plus hay and harvest wear items.
Parts request
Don't see it, or just want a number?
- 1Tell us the part, how many, and what it goes on.
- 2We check stock and line up your options.
- 3You get a call or text back with price and availability.
Common questions
How do I know when disc openers are worn out?
Measure the blade. Precision Planting's number for John Deere discs is 14.5 inches, and its Clay Scott calls 14-5/8 junk for 100 row acres of heavy no-till. Other makes, check your manual. Not sure? Text a photo.
What disc openers fit a John Deere planter?
Most run 15 in. x 3.5 mm. XP units take a different assembly than MaxEmerge, so tell us the model. Wearparts' XP assembly replaces AA65248 and AA105716.
Are aftermarket disc openers as good as OEM?
Wearparts says its Guaranteed True assemblies meet or exceed typical OEM specs and have tighter runout. Ask us what we've seen hold up on ground like yours.
I need a part now. Can you get it to me?
Pick it up at the shop, we'll bring it to you, or we'll overnight it for a fee.
Tell us what you need.
Shop diagnosis before the season, or a field call when it can't wait.