H151 gearbox – Brand new genuine Toyota HDJ100 – Suitable for R151 upgrade

H151 Gearbox – Genuine Toyota HDJ100 Manual Transmission Upgrade

Experience the unmatched strength and reliability of a brand new Genuine Toyota H151 Gearbox, purpose-built for HDJ100 Series LandCruisers and ideal for R151 gearbox upgrades or auto-to-manual conversions.

Unlike reconditioned units, this H151 Gearbox is a factory-fresh OEM component straight from Toyota — not rebuilt, not second-hand, and not reassembled from mixed parts. This gearbox ensures flawless engagement, quiet operation, and the long-term durability Toyota drivetrains are famous for.

Complete Genuine Toyota Assembly

Each H151 Gearbox comes as a complete genuine assembly with essential components included for smooth installation:

• Bellhousing (suits 1H* motor to H151 gearbox)

• Clutch pivot ball and fork

• Clutch slave cylinder (factory HDJ100 type)

This set delivers everything required for a factory-level manual conversion or gearbox replacement, eliminating compatibility concerns common with used or mismatched parts.

Direct Replacement for HDJ100 Series LandCruiser

This gearbox is a direct replacement for factory-fitted manual HDJ100 LandCruisers. Installation is straightforward in vehicles originally equipped with a manual transmission.

For automatic models being converted to manual, this gearbox can be installed with minor modifications to the crossmember and floor tunnel. Once fitted, it transforms drivability and delivers the robust, mechanical feel that only a genuine Toyota H151 Gearbox provides.

Suitable for R151 Gearbox Upgrade in HZJ105

The H151 Gearbox is also a popular upgrade path for HZJ105 GXL trim models originally fitted with the lighter-duty R151 gearbox. When installed, it pairs perfectly with existing gearbox surrounds and interior trims, offering a seamless fit and a major durability upgrade.

Key advantages over the R151 gearbox:

• Larger, stronger internal gears

• Improved torque handling for high-output diesel applications

• Proven reliability under heavy towing and off-road conditions

Key Features & Benefits

• Brand New Genuine Toyota Unit: Straight from Toyota, not a reconditioned or remanufactured gearbox.

• Heavy-Duty Construction: Designed for the torque and weight of 1H* engines.

• Complete Assembly: Includes bellhousing, clutch fork, pivot ball, and slave cylinder.

• Versatile Fitment: Direct replacement for HDJ100 or upgrade option for HZJ105.

• Perfect for Manual Conversions: Ideal for converting automatic HDJ100s to manual transmission.

• OEM Reliability: Tested to Toyota’s manufacturing standards for long service life.

Technical Specifications

• Gearbox Model: H151F

• Vehicle Compatibility:

  • Toyota LandCruiser HDJ100 (Direct replacement)

  • Toyota LandCruiser HZJ105 (R151 upgrade)

• Engine Compatibility: 1H* Series (1HD-FTE, 1HZ, etc.)

• Fitment Notes: Minor tunnel and crossmember modifications required for auto conversions

• Condition: Brand new genuine Toyota

• Included Components: Bellhousing, clutch fork, pivot ball, clutch slave

Installation Notes

This gearbox is designed to bolt directly to 1H* series engines with minimal modification when replacing an existing manual transmission. Ensure the correct driveshaft and crossmember setup is used for R151 to H151 conversions.

We recommend all gearbox installations be carried out by qualified technicians to ensure correct alignment, lubrication, and shifter linkage setup.

Why Choose Hassard Industries

At Hassard Industries, we specialise in Toyota driveline components — from complete engine rebuilds to gearbox conversions. Located in Bundamba, Queensland, our workshop uses the same parts we sell, ensuring you get components that perform exactly as promised.

Our genuine parts, like this H151 Gearbox, are chosen for their proven reliability and performance under Australian conditions.

How to Order or Enquire

For relating parts not listed on the website, fill out our Unlisted New Parts quoting form .

To contact us please see our Online Business card.