4J Performance Parts
4JH1 Mechanical Pump Adaptor Kit
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PLEASE NOTE: Any order from this time on 27th November 2025, will be shipping in January 2026
Replace the troublesome and expensive VP44 electronic pump with earlier VE4 pump found on 2.8 4JB1T. The kit enables pump swap whilst retaining the factory 4JH1 timing gears eliminating the previous need for engine removal and timing case swap. Ideally 4JB1T injectors, lines and clamps should be used however factory 4JH1 injectors and lines can be used with the additional injection line adaptors (also available to purchase) Note: the mechanical pump conversion has not currently been tested on automatic transmission vehicles.
Kits are made to order with an approximate lead time of 1-2weeks
Please contact us to confirm pump you wish to use is suitable for conversion with this kit as there are several variants of pump particularly in overseas markets. Also If you have any queries regarding the kit or mechanical pump conversion or expected lead time.
Kit includes :
*Pump Adaptor
*Gear Adaptor
*Mounting Brackets
*Hardware & O-Rings
Kit is Manufactured in Australia and certified Australian Made
Appearance and colours may vary due to different coatings and material changes.
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