HPI Replacement RC Nitro Engine Parts

A selection of replacement parts for HPI. 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 - 7x19x6 mm - Stainless Steel AISI 440C - High Speed Polyamide Cage - Ceramic Si3N4 Balls - Replaces -
HPI Nitro Star K4.6 - 15: BB 7-19-6
HPI Pro RSC - 15: BB 7-19-6
HPI RSC Pro - 4.6 CC: BB 7-19-6
HPI 21: Bearing - High Speed Economy Ceramic-Hybrid Bearing - Polyamide Retainer
HPI 49: Bearing - High Speed Economy Ceramic-Hybrid Bearing - Polyamide Retainer
HPI Nitro Star K4.6 - 15: Bearing - High Speed Economy Ceramic-Hybrid Bearing - Polyamide Retainer
HPI Pro RSC - 15: Bearing - High Speed Economy Ceramic-Hybrid Bearing - Polyamide Retainer
HPI RSC Pro - 4.6 CC: Bearing - High Speed Economy Ceramic-Hybrid Bearing - Polyamide Retainer

Replacement Part: 607-CSN-2RU-T9H-ECO (Each)
Double black rubber sealed economy ceramic-hybrid bearing with a high speed polyamide retainer

Single Row Ball Bearings - 7x19x6 mm Unflanged - Stainless Steel AISI 440C - High Speed Polyamide Cage - Ceramic Si3N4 Balls Bearing

$72.41 $86.89
Temporarily Out Of Stock -> Backorder now for delivery around Jun 26, 2026
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Single Row Ball Bearings - 7x19x6 mm - Stainless Steel AISI 440C HPI 21: Bearing - Stainless Bearing Shielded Option
HPI 49: Bearing - Stainless Bearing Shielded Option

Replacement Part: S607-ZZ-MC3 (Each)
Double shielded standard stainless steel bearing

Single Row Ball Bearings - 7x19x6 mm Unflanged - Stainless Steel AISI 440C Bearing

$5.59
105 Available Now -> Orders for more than 105 can be expected around Jun 18, 2026
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Single Row Ball Bearings - 7x19x6 mm - Chrome Steel SAE 52100 - Replaces -
HPI 49: BB 7-19-6
HPI 21: Bearing - Standard Bearing Sealed Option
HPI 49: Bearing - Standard Bearing Sealed Option

Replacement Part: 607-2RS-MC3 (Each)
Double rubber sealed standard bearing

Single Row Ball Bearings - 7x19x6 mm Unflanged - Chrome Steel SAE 52100 Bearing

$3.41
51 Available Now -> Orders for more than 51 can be expected around Jun 18, 2026
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Single Row Ball Bearings - 7x19x6 mm - Chrome Steel SAE 52100 - High Speed Polyamide Cage - Replaces -
HPI Nitro Star K4.6 - 12: BB 7-19-6
HPI Pro RSC - 15: BB 7-19-6
HPI RSC Pro - 4.6 CC: BB 7-19-6
HPI 21: Replacement Front Bearing - High Speed Bearing - Polyamide Retainer
HPI Nitro Star K4.6 - 12: Bearing - High Speed Bearing - Polyamide Retainer
HPI Nitro Star K4.6 - 12: Replacement Front Bearing - High Speed Bearing - Polyamide Retainer
HPI Pro RSC - 15: Bearing - High Speed Bearing - Polyamide Retainer
HPI Pro RSC - 15: Replacement Front Bearing - High Speed Bearing - Polyamide Retainer
HPI RSC Pro - 4.6 CC: Replacement Front Bearing - High Speed Bearing - Polyamide Retainer

Replacement Part: 607-Z-MC45-T9H-AF12-J (Each)
Single shielded high clearance bearing with a high speed polyamide retainer and light oil lubricant

Single Row Ball Bearings - 7x19x6 mm Unflanged - Chrome Steel SAE 52100 - High Speed Polyamide Cage Bearing

$6.14
60 Available Now -> Orders for more than 60 can be expected around Jun 18, 2026
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Single Row Ball Bearings - 7x19x6 mm - Chrome Steel SAE 52100 - High Speed Polyamide Cage - Ceramic Si3N4 Balls - Replaces -
HPI RSC Pro - 4.6 CC: BB 7-19-6
HPI 21: Bearing - High Speed Economy Ceramic-Hybrid Bearing - Polyamide Retainer
HPI 49: Bearing - High Speed Economy Ceramic-Hybrid Bearing - Polyamide Retainer
HPI RSC Pro - 4.6 CC: Bearing - High Speed Economy Ceramic-Hybrid Bearing - Polyamide Retainer

Replacement Part: 607-CSN-T9H-ECO (Each)
Open economy ceramic-hybrid bearing with a high speed polyamide retainer

Single Row Ball Bearings - 7x19x6 mm Unflanged - Chrome Steel SAE 52100 - High Speed Polyamide Cage - Ceramic Si3N4 Balls Bearing

$103.77
Temporarily Out Of Stock -> Backorder now for delivery around Jun 26, 2026
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Single Row Ball Bearings - 10x19x5 mm - Stainless Steel AISI 440C - Replaces -
HPI 21 All Models: BB 10-19-5
HPI FE - 25: BB 10-19-5
HPI Star Nitro - 21: BB 10-19-5
HPI Star Nitro - 4.6 CC: BB 10-19-5
HPI T-15 - 21: BB 10-19-5
HPI 21 All Models: Replacement Bearing - Stainless Bearing Shielded Option
HPI 25 All Models: Replacement Bearing - Stainless Bearing Shielded Option
HPI FE - 25: Replacement Bearing - Stainless Bearing Shielded Option
HPI Star Nitro - 21: Replacement Bearing - Stainless Bearing Shielded Option
HPI Star Nitro - 4.6 CC: Replacement Bearing - Stainless Bearing Shielded Option
HPI T-15 - 21: Replacement Bearing - Stainless Bearing Shielded Option

Replacement Part: S6800-ZZ (Each)
Double shielded standard stainless steel bearing

Single Row Ball Bearings - 10x19x5 mm Unflanged - Stainless Steel AISI 440C Bearing

$9.77
31 Available Now -> Orders for more than 31 can be expected around Jun 18, 2026
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Single Row Ball Bearings - 10x19x5 mm - Stainless Steel AISI 440C - Replaces -
HPI 21 All Models: BB 10-19-5
HPI 25 All Models: BB 10-19-5
HPI FE - 12: BB 10-19-5
HPI Star Nitro - 21: BB 10-19-5
HPI T-15 - 21: BB 10-19-5
HPI 21 All Models: Replacement Bearing - Economy Bearing Sealed Option
HPI 25 All Models: Replacement Bearing - Economy Bearing Sealed Option
HPI FE - 12: Replacement Bearing - Economy Bearing Sealed Option
HPI Star Nitro - 21: Replacement Bearing - Economy Bearing Sealed Option
HPI T-15 - 21: Replacement Bearing - Economy Bearing Sealed Option

Replacement Part: S6800-2RS-ECO (Each)
Double rubber sealed economy bearing

Single Row Ball Bearings - 10x19x5 mm Unflanged - Stainless Steel AISI 440C Bearing

$2.86
25 Available Now -> Orders for more than 25 can be expected around Jun 12, 2026
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Single Row Ball Bearings - 10x19x5 mm - Chrome Steel SAE 52100 - Replaces -
HPI 21 All Models: BB 10-19-5
HPI 25 All Models: BB 10-19-5
HPI FE - 25: BB 10-19-5
HPI Star Nitro - 4.6 CC: BB 10-19-5
HPI T-15 - 21: BB 10-19-5
HPI 21 All Models: Replacement Bearing - Standard Bearing Shielded Option
HPI 25 All Models: Replacement Bearing - Standard Bearing Shielded Option
HPI FE - 25: Replacement Bearing - Standard Bearing Shielded Option
HPI Star Nitro - 4.6 CC: Replacement Bearing - Standard Bearing Shielded Option
HPI T-15 - 21: Replacement Bearing - Standard Bearing Shielded Option

Replacement Part: 6800-ZZ (Each)
Double shielded standard bearing

Single Row Ball Bearings - 10x19x5 mm Unflanged - Chrome Steel SAE 52100 Bearing

$3.59
78 Available Now -> Orders for more than 78 can be expected around Jun 18, 2026
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Single Row Ball Bearings - 11x21x5 mm - Chrome Steel SAE 52100 - High Speed Polyamide Cage - Replaces -
HPI RSC Pro - 4.6 CC: BB 11-21-5
HPI RSC Pro - 4.6 CC: Replacement Bearing - High Speed Economy Bearing - Polyamide Retainer

Replacement Part: MR2111-T9H-ECO (Each)
Open economy bearing with a high speed polyamide retainer

Single Row Ball Bearings - 11x21x5 mm Unflanged - Chrome Steel SAE 52100 - High Speed Polyamide Cage Bearing

$34.95 $41.95
Temporarily Out Of Stock -> Backorder now for delivery around Jun 26, 2026
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Angular Contact Bearings - 12x24x6 mm - Chrome Steel SAE 52100 - High Speed Phenolic Cage - Replaces -
HPI Nitro Star K4.6 - 12: BB 14-25-6
HPI Pro RSC - 15: BB 14-25-6
HPI Nitro Star K4.6 - 12: Bearing - High Speed Economy Ceramic-Hybrid Bearing - Phenolic Retainer
HPI Pro RSC - 15: Bearing - High Speed Economy Ceramic-Hybrid Bearing - Phenolic Retainer

Replacement Part: 7901-15-CSN-KC-U5-ECO (Each)
Deleted Item. Available while stocks last. Angular contact Abec 5 ceramic-hybrid bearing with a high speed phenolic retainer

Angular Contact Bearings - 12x24x6 mm Single Row Ball - Chrome Steel SAE 52100 - High Speed Phenolic Cage Bearing

$10.00 $19.00
1 Available Now -> Only the available quantity may be ordered online. No backorders.
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Single Row Ball Bearings - 13x24x6 mm - Chrome Steel SAE 52100 - High Speed Polyamide Cage - Ceramic Si3N4 Balls - Replaces -
HPI 49: BB 13-24-6
HPI 21: Bearing - High Speed Economy Ceramic-Hybrid Bearing - Polyamide Retainer
HPI 49: Bearing - High Speed Economy Ceramic-Hybrid Bearing - Polyamide Retainer

Replacement Part: MR2413-CSN-T9H-ECO (Each)
Open economy ceramic-hybrid bearing with a high speed polyamide retainer

Single Row Ball Bearings - 13x24x6 mm Unflanged - Chrome Steel SAE 52100 - High Speed Polyamide Cage - Ceramic Si3N4 Balls Bearing

$76.59 $91.91
Temporarily Out Of Stock -> Backorder now for delivery around Jun 26, 2026
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Single Row Ball Bearings - 13x24x6 mm - Chrome Steel SAE 52100 - High Speed Polyamide Cage - Replaces -
HPI 49: BB 13-24-6
HPI 21: Bearing - High Speed Bearing - Polyamide Retainer
HPI 49: Bearing - High Speed Bearing - Polyamide Retainer

Replacement Part: MR2413-C3-T9H (Each)
Open standard bearing with a high speed polyamide retainer

Single Row Ball Bearings - 13x24x6 mm Unflanged - Chrome Steel SAE 52100 - High Speed Polyamide Cage Bearing

$6.86
20 Available Now -> Orders for more than 20 can be expected around Jun 18, 2026
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Single Row Ball Bearings - 14x25x6 mm - Chrome Steel SAE 52100 - High Speed Polyamide Cage - Ceramic Si3N4 Balls - Replaces -
HPI Nitro Star K4.6 - 15: BB 14-25-6
HPI Pro RSC - 15: BB 14-25-6
HPI Pro RSC - 4.6 CC: BB 14-25-6
HPI Nitro Star K4.6 - 15: Bearing - High Speed Economy Ceramic-Hybrid Bearing - Polyamide Retainer
HPI Pro RSC - 15: Bearing - High Speed Economy Ceramic-Hybrid Bearing - Polyamide Retainer
HPI Pro RSC - 4.6 CC: Bearing - High Speed Economy Ceramic-Hybrid Bearing - Polyamide Retainer

Replacement Part: MR2514-CSN-T9H-ECO (Each)
Deleted Item. Available while stocks last.

Single Row Ball Bearings - 14x25x6 mm Unflanged - Chrome Steel SAE 52100 - High Speed Polyamide Cage - Ceramic Si3N4 Balls Bearing

$44.14 $136.14
22 Available Now -> Only the available quantity may be ordered online. No backorders.
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