YS ST4 91 Heli - 61 Replacement RC Nitro Engine Parts

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

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Replacement Parts		Price
	- Replaces - BB 9.53-22.23-7.14 Bearing - High Speed Economy Ceramic-Hybrid Bearing - Polyamide Retainer Replacement Part: R6A-CSN-Z-T9H-ECO (Each) Single shielded economy ceramic-hybrid bearing with a high speed polyamide retainer Single Row Ball Bearings - 9.525x22.225x7.142 mm Unflanged - Chrome Steel SAE 52100 - High Speed Polyamide Cage - Ceramic Si3N4 Balls Bearing	$74.95 ~~$89.95~~
Temporarily Out Of Stock -> Backorder now for delivery around Jun 26, 2026 View Entire Category:
	- Replaces - BB 9.53-22.23-7.14 Bearing - Stainless Bearing Shielded Option Replacement Part: SR6A-ZZ-MC3 (Each) Double shielded standard stainless steel bearing Single Row Ball Bearings - 9.525x22.225x7.142 mm Unflanged - Stainless Steel AISI 440C Bearing	$11.05
70 Available Now -> Orders for more than 70 can be expected around Jun 18, 2026 View Entire Category:
	- Replaces - BB 9.53-22.23-7.14 Bearing - Standard Bearing Sealed Option Replacement Part: R6A-2RS-MC3 (Each) Double rubber sealed standard bearing Single Row Ball Bearings - 9.525x22.225x7.142 mm Unflanged - Chrome Steel SAE 52100 Bearing	$4.05
119 Available Now -> Orders for more than 119 can be expected around Jun 18, 2026 View Entire Category:
	- Replaces - BB 9.53-22.23-7.14 Bearing - Standard Bearing Shielded Option Replacement Part: R6A-ZZ-MC3 (Each) Double shielded standard bearing Single Row Ball Bearings - 9.525x22.225x7.142 mm Unflanged - Chrome Steel SAE 52100 Bearing	$3.95
75 Available Now -> Orders for more than 75 can be expected around Jun 18, 2026 View Entire Category:
	- Replaces - BB 17-35-8 Replacement Rear Bearing - High Speed Economy Ceramic-Hybrid Bearing - Polyamide Retainer Replacement Part: 6003A-CSN-T9H-ECO (Each) Open economy ceramic-hybrid bearing with a high speed polyamide retainer and NON-ISO width Single Row Ball Bearings - 17x35x8 mm Unflanged - Chrome Steel SAE 52100 - High Speed Polyamide Cage - Ceramic Si3N4 Balls Bearing	$141.68
Temporarily Out Of Stock -> Backorder now for delivery around Jun 26, 2026 View Entire Category:
	- Replaces - BB 17-35-8 Replacement Rear Bearing - High Speed Economy Bearing - Polyamide Retainer Replacement Part: 6003A-TNH-ECO (Each) Open economy bearing with a high speed polyamide retainer and NON-ISO width Single Row Ball Bearings - 17x35x8 mm Unflanged - Chrome Steel SAE 52100 - High Speed Polyamide Cage Bearing	$46.77 ~~$56.13~~
Temporarily Out Of Stock -> Backorder now for delivery around Jun 26, 2026 View Entire Category:
	- Replaces - BB 17-35-8 Replacement Rear Bearing - Standard Bearing Replacement Part: 6003A (Each) Non ISO Width Single Row Ball Bearings - 17x35x8 mm Unflanged - Chrome Steel SAE 52100 Bearing	$16.32
1 Available Now -> Orders for more than 1 can be expected around May 26, 2026 View Entire Category: