Kyosho® Jet Stream Replacement RC Boat Parts

A selection of replacement parts for Kyosho®. 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 - 4x7x2.5 mm - Stainless Steel AISI 440C - Replaces -
BB 4-7-2.5
Replacement Bearing - Stainless Flanged Economy Bearing Shielded Option

Replacement Part: SFMR74A-ZZ-ECO (Each)
Double shielded economy flanged stainless steel bearing

Single Row Ball Bearings - 4x7x2.5 mm Flanged - Stainless Steel AISI 440C Bearing

$4.23 $7.89
Temporarily Out Of Stock -> Backorder now for delivery around Jul 11, 2026
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Single Row Ball Bearings - 4x7x2.5 mm - Chrome Steel SAE 52100 - Replaces -
BB 4-7-2.5
Replacement Bearing - Economy Bearing Sealed Option

Replacement Part: FMR74A-2RS-ECO (PK-2)
Double black rubber sealed economy flanged bearing

Single Row Ball Bearings - 4x7x2.5 mm Flanged - Chrome Steel SAE 52100 Bearing

$4.23
170 (340 pcs) Available Now -> Orders for more than 170 can be expected around Jul 02, 2026
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Single Row Ball Bearings - 4x8x3 mm - Chrome Steel SAE 52100 - Ceramic Si3N4 Balls - Replaces -
BB 4-8-3
Bearing - Economy Ceramic Hybrid Bearing Shielded Option

Replacement Part: MR84A-CSN-ZZS-ACO-ECO (PK-200)
Double shielded ceramic-hybrid bearing with light anti-rust lubricant

Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 - Ceramic Si3N4 Balls Bearing

$840.68 $1,008.82
Temporarily Out Of Stock -> Backorder now for delivery around Jul 08, 2026
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