HPI Micro RS4 RTR 4WD Replacement RC Car 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 - 3x6x2.5 mm - Chrome Steel SAE 52100 - Replaces -
BB 3-6-2.5
Replacement Bearing - Standard Bearing
Double shielded standard bearing

MR63A-ZZ-MC3 (Each)
Double shielded standard bearing

Single Row Ball Bearings - 3x6x2.5 mm Unflanged - Chrome Steel SAE 52100 Bearing

$3.86
28 Available Now -> Orders for more than 28 can be expected around Aug 19, 2026
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Single Row Ball Bearings - 3x8x4 mm - Chrome Steel SAE 52100 - Replaces -
BB 3-8-4
Replacement Bearing - Standard Bearing
Double shielded standard bearing

693A-ZZ-MC3 (Each)
Double shielded standard bearing

Single Row Ball Bearings - 3x8x4 mm Unflanged - Chrome Steel SAE 52100 Bearing

$3.23
158 Available Now -> Orders for more than 158 can be expected around Aug 19, 2026
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1050353 | T-0030-0080-G-BR (Each) --- Thrust Ball Bearings - 3x8x3.5 mm / 3.2 mm Grooved - Chrome Steel Bearing - Replaces -
BB 3-8-3.500
Thrust Bearing - Brass Retainer
Thrust bearing with 2 Grooved Washers and retainerd Balls

T-0030-0080-G-BR (Each)
Thrust bearing with 2 Grooved Washers and retainerd Balls

Thrust Ball Bearings - 3x8x3.5 mm / 3.2 mm Grooved - Chrome Steel Bearing

$35.68 $42.82
Temporarily Out Of Stock -> Backorder now for delivery around Aug 24, 2026
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1050362 | 693A-2RS-ECO (Each) --- Single Row Ball Bearings - 3x8x4 mm Unflanged - Chrome Steel SAE 52100 Bearing Replacement Bearing - Economy Bearing
Double black rubber sealed economy bearing

693A-2RS-ECO (Each)
Double black rubber sealed economy bearing

Single Row Ball Bearings - 3x8x4 mm Unflanged - Chrome Steel SAE 52100 Bearing

$3.59
Temporarily Out Of Stock -> Backorder now for delivery around Aug 22, 2026
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Single Row Ball Bearings - 5x8x2.5 mm - Chrome Steel SAE 52100 - Replaces -
BB 5-8-2.5
Replacement Bearing - Economy Bearing Sealed Option
Deleted Item. Available while stocks last.

MR85A-2RB-ECO (PK-5)
Deleted Item. Available while stocks last.

Single Row Ball Bearings - 5x8x2.5 mm Unflanged - Chrome Steel SAE 52100 Bearing

$2.59 $7.46
53 (265 pcs) Available Now -> Only the available quantity may be ordered online. No backorders.
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Single Row Ball Bearings - 5x8x2.5 mm - Chrome Steel SAE 52100 - Replaces -
BB 5-8-2.5
Replacement Bearing - Economy Bearing Shielded Option
Double shielded economy bearing

MR85A-ZZS-ECO (PK-5)
Double shielded economy bearing

Single Row Ball Bearings - 5x8x2.5 mm Unflanged - Chrome Steel SAE 52100 Bearing

$4.68
47 (235 pcs) Available Now -> Orders for more than 47 can be expected around Aug 13, 2026
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Single Row Ball Bearings - 5x11x4 mm - Chrome Steel SAE 52100 - Replaces -
BB 5-11-4
Replacement Bearing - Economy Bearing Sealed Option
Double blue rubber sealed economy flanged bearing

MR115-2RB-ECO (PK-5)
Double blue rubber sealed economy flanged bearing

Single Row Ball Bearings - 5x11x4 mm Unflanged - Chrome Steel SAE 52100 Bearing

$7.41
80 (400 pcs) Available Now -> Orders for more than 80 can be expected around Aug 13, 2026
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Single Row Ball Bearings - 6x10x3 mm - Chrome Steel SAE 52100 - Ceramic Si3N4 Balls - Replaces -
BB 6-10-3
Replacement Bearing - Economy Ceramic Hybrid Bearing Shielded Option
Double shielded ceramic-hybrid bearing with light anti-rust lubricant

MR106A-CSN-ZZS-ACO-ECO (Each)
Double shielded ceramic-hybrid bearing with light anti-rust lubricant

Single Row Ball Bearings - 6x10x3 mm Unflanged - Chrome Steel SAE 52100 - Ceramic Si3N4 Balls Bearing

$3.95 $4.75
80 Available Now -> Orders for more than 80 can be expected around Aug 13, 2026
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Single Row Ball Bearings - 6x10x3 mm - Chrome Steel SAE 52100 - Replaces -
BB 6-10-3
Replacement Bearing - Economy Bearing Shielded Option
Double shielded economy bearing

MR106A-ZZS-ECO (PK-10)
Double shielded economy bearing

Single Row Ball Bearings - 6x10x3 mm Unflanged - Chrome Steel SAE 52100 Bearing

$10.32
22 (220 pcs) Available Now -> Orders for more than 22 can be expected around Aug 13, 2026
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Single Row Ball Bearings - 6x10x3 mm - Chrome Steel SAE 52100 - Replaces -
BB 6-10-3
Replacement Bearing - Economy Bearing Sealed Option
Double blue rubber sealed economy flanged bearing

MR106A-2RB-ECO (PK-2)
Double blue rubber sealed economy flanged bearing

Single Row Ball Bearings - 6x10x3 mm Unflanged - Chrome Steel SAE 52100 Bearing

$2.95
322 (644 pcs) Available Now -> Orders for more than 322 can be expected around Aug 13, 2026
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1066623 | MR85A-CSN-ZZS-G90-ECO (Each) --- Single Row Ball Bearings - 5x8x2.5 mm Unflanged - Chrome Steel SAE 52100 - Ceramic Si3N4 Balls Bearing - Replaces -
BB 5-8-2.5
Replacement Bearing - Economy Ceramic Hybrid Bearing Shielded Option
Double shielded economy ceramic-hybrid Bearing

MR85A-CSN-ZZS-G90-ECO (Each)
Double shielded economy ceramic-hybrid Bearing

Single Row Ball Bearings - 5x8x2.5 mm Unflanged - Chrome Steel SAE 52100 - Ceramic Si3N4 Balls Bearing

$26.77
Temporarily Out Of Stock -> Backorder now for delivery around Aug 27, 2026
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Single Row Ball Bearings - 5x11x4 mm - Chrome Steel SAE 52100 - Replaces -
BB 5-11-4
Replacement Bearing - Economy Bearing Shielded Option
Double shielded economy bearing

MR115-ZZS-ECO (PK-5)
Double shielded economy bearing

Single Row Ball Bearings - 5x11x4 mm Unflanged - Chrome Steel SAE 52100 Bearing

$5.14
40 (200 pcs) Available Now -> Orders for more than 40 can be expected around Aug 13, 2026
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