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51520900 07402200 Deck Spindle for Ariens Gravely Zoom ZT 42 CE CARB 3 Pieces
$305.79
Sale price
$305.79
Regular price
Available to Order
This set of 3 deck spindles is a replacement mower deck spindle assembly compatible with Ariens and Gravely Zoom ZT 42 mowers and matches OEM part numbers 51520900 and 07402200.
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I needed a forklift part and wasn’t sure which one fit. They asked for the model and serial number, got back to me quickly, and made sure I ordered the right one. Really helpful.
Randy W. — Verified customer
Product Overview
This 42-inch deck spindle set keeps your Ariens or Gravely zero-turn mower cutting smoothly. The three deck spindles replace worn or bent spindle housings and shafts on 42-inch decks. Designed as a direct drop-in for Zoom ZT 42 models, this deck spindle kit restores blade balance and cutting quality.
Key Features & Performance
- Set of three complete spindle assemblies for a full deck rebuild
- Pre-greased sealed bearings eliminate maintenance and extend service life
- Rigid cast iron housing resists flex under heavy mowing loads
- Machined blade mounting surface ensures true blade rotation with minimal vibration
- Straight shaft design accepts standard 42-inch mower blades
- Durable black powder coat finish resists corrosion from grass clippings and moisture
Fitment & Compatibility
- Ariens Zoom ZT 42 (42-inch deck)
- Gravely Zoom ZT 42 (42-inch deck)
- Replaces OEM part numbers 51520900 and 07402200
Common Uses
- Replacing noisy or seized spindle bearings on 42-inch zero-turn mowers
- Complete spindle overhauls during off-season maintenance
- Restoring deck performance after impact damage to spindle housings
- Upgrading factory spindles on high-hour commercial units
Technical Specifications
- Part Number(s): 51520900, 07402200
- Deck Size: 42 inches
- Quantity: 3 spindles
- Shaft Type: Straight with keyed blade bore
- Bearing Type: Sealed ball bearing
- Housing Material: Cast iron
Frequently Asked Questions
Q: Do these spindles fit both Ariens and Gravely Zoom ZT 42 models? A: Yes, they cross-reference to factory part numbers 51520900 and 07402200 and fit 42-inch decks on both Ariens and Gravely Zoom ZT 42 mowers.
Q: Is a blade bolt kit included? A: The set includes three bare spindles; you must reuse or purchase blade bolts, nuts, and washers separately.
Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.