Horizon® Hoover Star Replacement RC Helicopter Parts

A selection of replacement parts for Horizon®. These parts are not original parts unless otherwise stated in the descriptions. Please check your choices thoroughly.

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Replacement Parts Price Quantity
Single Row Ball Bearings - 4x9x4 mm - Chrome Steel SAE 52100 - Replaces -
BB 4-9-4
Bearing - Economy Bearing

Replacement Part: 684A-ZZS-ECO (PK-5)
Deleted Item. Available while stocks last.

Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing

$3.49 $5.89
4 (20 pcs) Available Now -> Only the available quantity may be ordered online. No backorders.
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Single Row Ball Bearings - 6.35x15.875x4.978 mm - Chrome Steel SAE 52100 - Replaces -
BB 6.35-15.88-4.98
Bearing - Economy Bearing

Replacement Part: R4-ZZ-ECO (PK-5)
Double shielded economy bearing

Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Chrome Steel SAE 52100 Bearing

$7.14
1 (5 pcs) Available Now -> Orders for more than 1 can be expected around Jul 02, 2026
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Single Row Ball Bearings - 8x16x5 mm - Chrome Steel SAE 52100 - Replaces -
BB 8-16-5
Bearing - Economy Bearing

Replacement Part: 688A-ZZS-ECO (PK-5)
Double shielded economy bearing

Single Row Ball Bearings - 8x16x5 mm Unflanged - Chrome Steel SAE 52100 Bearing

$4.86
56 (280 pcs) Available Now -> Orders for more than 56 can be expected around Jul 02, 2026
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