JSXDNWYJ 42-Inch Mower Deck Rebuild Kit for John Deere D100 D110 LA100 Series — Spindles, Blades & Belt

This JSXDNWYJ kit consolidates the common wear items for a 42" John Deere lawn tractor deck into a single purchase so you can restore cutting performance and reduce downtime. Each component is designed to match the fit and mounting points of the original equipment references listed, letting you replace multiple items at once without hunting for individual part numbers.

What parts are included and which OEM numbers do they substitute?

The kit includes replacement spindles, blades, several idler pulleys and a deck belt, with cross-references to John Deere part numbers so installers can verify compatibility. Components are labeled to correspond with common OEM designations for easier identification during the rebuild.

• Spindle(s) matching John Deere AUC15811, GX21694, GY21098 and related OEM numbers listed.
• Blades that replace AM137328, AM137333, AM141033 and equivalent deck blades.
• Idler pulleys grouping: GY20110, GY20067 and GX20367 style replacements (quantity per kit noted).
• Deck belt replacing GX20072 (also cross-referenced with GY20570).

How does this kit help restore cutting performance?

Worn spindles, dull blades and glazed belts cause vibration, uneven cuts and reduced deck speed. Replacing these wearing items together puts the deck back to correct alignment and blade speed, improving cut quality and reducing stress on the tractor.

• New spindles restore smooth blade rotation and correct blade height alignment.
• Sharp replacement blades deliver crisper, more even grass discharge.
• Fresh idler pulleys and belt maintain proper tension and reduce slippage.
• Completing the set prevents mismatched old/new parts that can accelerate wear.

Is this kit compatible with my John Deere model?

The kit is engineered for 42" mower decks on a range of John Deere lawn tractors and riding mowers. Check your tractor model and deck size against the compatibility list to confirm fit before purchase.

• Compatible series include: D100, D105, D110, D120, D130 and related LA100–LA135 models.
• Specifically referenced models: 102, 105, 115, 125, 135, plus D100/D105/D110/D120/D130 variants.
• Intended for 42-inch decks that used the OEM numbers listed in the part cross-reference.
• If unsure, compare your current parts’ numbers to the OEM replacements in the kit.

What should I know about installation and warranty?

Installation follows standard mower deck service procedures—supporting bolts, pulleys and blade torque specs should match your tractor manual. JSXDNWYJ provides a 24-month warranty covering manufacturing defects (not wear from use or damage from improper installation) and a responsive customer service channel.

• Follow the tractor manufacturer’s safety steps: disconnect spark plug and stabilize the deck before working.
• Torque blades and spindle hardware to the tractor manual’s specifications for safe operation.
• Keep proof of purchase and installation notes for warranty verification if needed.
• Customer service responds within 24 hours through the vendor’s listed support avenues.

Who is this for: This rebuild kit suits homeowners, lawn-care technicians and small-fleet operators who maintain John Deere 42" mower decks and prefer replacing multiple wear items in one service interval. It’s ideal when spindles, blades and belt components show wear or when you want to proactively refresh the deck to restore cutting quality and reduce recurring service calls.