Skip to product information
51520900 07402200 Deck Spindle for Ariens Gravely Zoom ZT 42 CE CARB 3 Pieces
$305.79
Sale price
$305.79
Regular price
Quantity
Pickup currently not available
Secure Checkout • Encrypted Payments
Free Shipping
Contiguous U.S.
1-Year Warranty
Parts you can rely on
30-Day Returns
Hassle-free returns
Need help confirming fitment?
Talk with a parts expert today.
Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT
Live Chat: Available 24/7
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
Equipment Fitment
Review the equipment and model information below. Fitment can vary by serial number, production date, or machine configuration, so confirm your model and reference numbers before ordering.
Equipment / model
- Ariens Zoom ZT 42 (42-inch deck)
- Gravely Zoom ZT 42 (42-inch deck)
- Replaces OEM part numbers 51520900 and 07402200
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
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.