HB 0.25 All Models Replacement RC Nitro Engine Parts

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

Add the quantities required for each item, then click "Add to Cart" before proceeding to the next page

Replacement Parts Price Quantity
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Stainless Steel AISI 440C - Replaces -
BB 6.35-15.88-4.98
Bearing - Stainless Bearing Shielded Option
Double shielded standard stainless steel bearing

SR4-ZZ-MC3 (Each)
Double shielded standard stainless steel bearing

Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Stainless Steel AISI 440C Bearing

$4.23
40 Available Now -> Orders for more than 40 can be expected around Jul 08, 2026
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Single Row Ball Bearings - 6.35x15.875x4.978 mm - Stainless Steel AISI 440C - Replaces -
BB 6.35-15.88-4.98
Bearing - Stainless Bearing Sealed Option
Double black rubber sealed standard stainless steel bearing

SR4-2RS-MC3 (Each)
Double black rubber sealed standard stainless steel bearing

Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Stainless Steel AISI 440C Bearing

$4.14
45 Available Now -> Orders for more than 45 can be expected around Jul 08, 2026
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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 - Standard Bearing Shielded Option
Double shielded standard bearing

R4-ZZ-MC3 (Each)
Double shielded standard bearing

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

$3.95
96 Available Now -> More due: Jun 19, 2026 -> Orders for more than 96 can be expected around Jul 08, 2026
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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 - Standard Bearing Sealed Option
Double rubber sealed standard bearing

R4-2RS-MC3 (Each)
Double rubber sealed standard bearing

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

$3.77
186 Available Now -> Orders for more than 186 can be expected around Jul 08, 2026
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1098169 | 6901-2RS-T9H-ECO (Each) --- Single Row Ball Bearings - 12x24x6 mm Unflanged - Chrome Steel SAE 52100 - High Speed Polyamide Cage Bearing - Replaces -
BB 12-24-6
Replacement Bearing - High Speed Economy Bearing - Polyamide Retainer Sealed Option
Double black rubber sealed economy bearing with a high speed polyamide retainer

6901-2RS-T9H-ECO (Each)
Double black rubber sealed economy bearing with a high speed polyamide retainer

Single Row Ball Bearings - 12x24x6 mm Unflanged - Chrome Steel SAE 52100 - High Speed Polyamide Cage Bearing

$33.95 $40.75
Temporarily Out Of Stock -> Backorder now for delivery around Jul 16, 2026
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Single Row Ball Bearings - 12x24x6 mm - Stainless Steel AISI 440C - Replaces -
BB 12-24-6
Replacement Bearing - Stainless Bearing Shielded Option
Deleted Item. Available while stocks last.

S6901-ZZ (Each)
Deleted Item. Available while stocks last.

Single Row Ball Bearings - 12x24x6 mm Unflanged - Stainless Steel AISI 440C Bearing

$8.14 $9.76
1 Available Now -> Only the available quantity may be ordered online. No backorders.
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