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Collection: Engine Rebuild Kits

Rebuild your engine with confidence using AJ's Mobile Powersport Mechanics Store. Explore high-quality engine rebuild kits designed for durability and peak performance.

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456 products

Top End Rebuild Kit (0.50 OS) Honda TRX420 FE/FM/TE/TM '09-'15

Top End Rebuild Kit (0.50 OS) Honda TRX420 FE/FM/TE/TM '09-'15

Regular price $323.88 NZD

Regular price Sale price $323.88 NZD
Unit price per
Top End Rebuild Kit (A) KTM 250 EXC 2004

Top End Rebuild Kit (A) KTM 250 EXC 2004

Regular price $235.88 NZD

Regular price Sale price $235.88 NZD
Unit price per
Top End Rebuild Kit (B) KTM 250 SX-F / Husqvarna FC250 '16-'17

Top End Rebuild Kit (B) KTM 250 SX-F / Husqvarna FC250 '16-'17

Regular price $311.95 NZD

Regular price Sale price $311.95 NZD
Unit price per
Vertex Top End Rebuild Kit (AB)

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Vertex Top End Rebuild Kit (AB)

Regular price $230.00 NZD

Regular price Sale price $230.00 NZD
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Top End Rebuild Kit (A) Yamaha YZ426F '00-'02

Top End Rebuild Kit (A) Yamaha YZ426F '00-'02

Regular price $322.67 NZD

Regular price Sale price $322.67 NZD
Unit price per
Top End Rebuild Kit (B) KTM 250 SX '03-'04

Top End Rebuild Kit (B) KTM 250 SX '03-'04

Regular price $236.62 NZD

Regular price Sale price $236.62 NZD
Unit price per
Top End Rebuild Kit (B) Honda CRF250R '06-'07

Top End Rebuild Kit (B) Honda CRF250R '06-'07

Regular price $296.76 NZD

Regular price Sale price $296.76 NZD
Unit price per
Top End Rebuild Kit (A PRO) Honda CRF250R '16-'17

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Top End Rebuild Kit (A PRO) Honda CRF250R '16-'17

Regular price $331.53 NZD

Regular price Sale price $331.53 NZD
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Top End Rebuild Kit (A) Honda CR500 '89-'01 - Single Ring

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Top End Rebuild Kit (A) Honda CR500 '89-'01 - Single Ring

Regular price $303.26 NZD

Regular price Sale price $303.26 NZD
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Top End Rebuild Kit (B) Yamaha YZ400F '98-'99

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Top End Rebuild Kit (B) Yamaha YZ400F '98-'99

Regular price $313.96 NZD

Regular price Sale price $313.96 NZD
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Top End Rebuild Kit (A Pro) Yamaha YZ250F '08-'13

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Top End Rebuild Kit (A Pro) Yamaha YZ250F '08-'13

Regular price $311.24 NZD

Regular price Sale price $311.24 NZD
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Top End Rebuild Kit (A PRO) Honda CRF450R 2004

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Top End Rebuild Kit (A PRO) Honda CRF450R 2004

Regular price $305.71 NZD

Regular price Sale price $305.71 NZD
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Top End Rebuild Kit (B) KTM 250 SX-F '06-'12

Top End Rebuild Kit (B) KTM 250 SX-F '06-'12

Regular price $335.88 NZD

Regular price Sale price $335.88 NZD
Unit price per
Top End Rebuild Kit (B) Suzuki RM-Z450 '08-'12

Top End Rebuild Kit (B) Suzuki RM-Z450 '08-'12

Regular price $332.83 NZD

Regular price Sale price $332.83 NZD
Unit price per
Top End Rebuild Kit (A) Honda CRF450R '15-'16

Top End Rebuild Kit (A) Honda CRF450R '15-'16

Regular price $335.20 NZD

Regular price Sale price $335.20 NZD
Unit price per
Top End Rebuild Kit (A) KTM 350 SX-F / Husqvarna FC350 '16-'17

Top End Rebuild Kit (A) KTM 350 SX-F / Husqvarna FC350 '16-'17

Regular price $341.52 NZD

Regular price Sale price $341.52 NZD
Unit price per
Vertex Top End Rebuild Kit (AB)

Vertex Top End Rebuild Kit (AB)

Regular price $230.00 NZD

Regular price Sale price $230.00 NZD
Unit price per
Top End Rebuild Kit (A) Honda CRF450R '13-'14

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Top End Rebuild Kit (A) Honda CRF450R '13-'14

Regular price $335.20 NZD

Regular price Sale price $335.20 NZD
Unit price per

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Top End Rebuild Kit (A) Yamaha WR450F '16-'19

Top End Rebuild Kit (A) Yamaha WR450F '16-'19

Regular price $357.17 NZD

Regular price Sale price $357.17 NZD
Unit price per
Vertex Top End Rebuild Kit (B)

Vertex Top End Rebuild Kit (B)

Regular price $350.00 NZD

Regular price Sale price $350.00 NZD
Unit price per
Top End Rebuild Kit (B) Kawasaki KDX200 '95-'06

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Top End Rebuild Kit (B) Kawasaki KDX200 '95-'06

Regular price $252.54 NZD

Regular price Sale price $252.54 NZD
Unit price per

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Top End Rebuild Kit (B) Yamaha YZ125 '05-'19

Top End Rebuild Kit (B) Yamaha YZ125 '05-'19

Regular price $214.01 NZD

Regular price Sale price $214.01 NZD
Unit price per
Top End Rebuild Kit (B) KTM 144/150 SX '07-'15

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Top End Rebuild Kit (B) KTM 144/150 SX '07-'15

Regular price $260.12 NZD

Regular price Sale price $260.12 NZD
Unit price per

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Top End Rebuild Kit (1.00 OS) Yamaha YFM660 '02-'04

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Top End Rebuild Kit (1.00 OS) Yamaha YFM660 '02-'04

Regular price $305.50 NZD

Regular price Sale price $305.50 NZD
Unit price per

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Top End Rebuild Kit (A) KTM 500/525 SX/EXC '00-'07

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Top End Rebuild Kit (A) KTM 500/525 SX/EXC '00-'07

Regular price $294.80 NZD

Regular price Sale price $294.80 NZD
Unit price per

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Top End Rebuild Kit (A Pro) Yamaha WR250F '01-'13

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Top End Rebuild Kit (A Pro) Yamaha WR250F '01-'13

Regular price $311.24 NZD

Regular price Sale price $311.24 NZD
Unit price per

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Top End Rebuild Kit (A) Honda CRF250R '06-'07

Top End Rebuild Kit (A) Honda CRF250R '06-'07

Regular price $296.76 NZD

Regular price Sale price $296.76 NZD
Unit price per
Top End Rebuild Kit (B) Yamaha YZ125 2001 (Bearing Not Included)

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Top End Rebuild Kit (B) Yamaha YZ125 2001 (Bearing Not Included)

Regular price $182.29 NZD

Regular price Sale price $182.29 NZD
Unit price per

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Top End Rebuild Kit (B) Kawasaki KDX220 '97-'05 (Bearing not included)

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Top End Rebuild Kit (B) Kawasaki KDX220 '97-'05 (Bearing not included)

Regular price $221.03 NZD

Regular price Sale price $221.03 NZD
Unit price per

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Vertex Top End Rebuild Kit - Forged Piston (A)

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Vertex Top End Rebuild Kit - Forged Piston (A)

Regular price $500.00 NZD

Regular price Sale price $500.00 NZD
Unit price per

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Top End Rebuild Kit (B) Yamaha YZ426F '00-'02

Top End Rebuild Kit (B) Yamaha YZ426F '00-'02

Regular price $322.67 NZD

Regular price Sale price $322.67 NZD
Unit price per
Top End Rebuild Kit (B) KTM 125 EXC '02-'06

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Top End Rebuild Kit (B) KTM 125 EXC '02-'06

Regular price $216.94 NZD

Regular price Sale price $216.94 NZD
Unit price per

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Top End Rebuild Kit (B) Suzuki RM-Z450 '18-'19

Top End Rebuild Kit (B) Suzuki RM-Z450 '18-'19

Regular price $339.46 NZD

Regular price Sale price $339.46 NZD
Unit price per
Top End Rebuild Kit (A PRO) Honda CRF450R '05-'06

Sold out

Top End Rebuild Kit (A PRO) Honda CRF450R '05-'06

Regular price $305.71 NZD

Regular price Sale price $305.71 NZD
Unit price per

Sold out
Top End Rebuild Kit (B) Yamaha YZ450F '06-'09

Top End Rebuild Kit (B) Yamaha YZ450F '06-'09

Regular price $327.23 NZD

Regular price Sale price $327.23 NZD
Unit price per
Top End Rebuild Kit (B) Kawasaki KX250F '11-'14

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Top End Rebuild Kit (B) Kawasaki KX250F '11-'14

Regular price $308.32 NZD

Regular price Sale price $308.32 NZD
Unit price per

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