Fuel Pin (AFR) for boost compensator, Toyota Land Cruiser HDJ81 / 1HDT - 22321-17840

Fuel Pin (AFR) for boost compensator, Toyota Land Cruiser 1HZ-T, 1HD-T & others

If you need a new fuel pin because you bought a crappy quality "performance pin" that's not been hardened properly and it's shedding metal sludge into your boost compensator, or someone ground the heck out of your stock pin in an attempt to "tune" your engine, you're in luck... this is a stock factory fuel pin.

Your pump should be professionally calibrated on a test bench when replacing the fuel pin, setting the pin travel, adjusting the guide bushing spring tension, and correcting fuel delivery volumes for optimal AFRs/EGTs.

According to Black Fox Diesel Injection, the Genuine Toyota/Denso fuel pin is able to handle almost any tune that you want when your pump and boost compensator have been properly calibrated. If you are going to, or can get your engine dyno tuned, then all you should need are small adjustments to optimize your AFRs (air fuel ratios) after having your pump rebuilt and calibrated for your desired boost parameters.

Contact Black Fox Diesel Injection for this work as our recommended shop here in Canada

Toyota pn:
22321-17840 = supplied part
22321-17420 = NLA

Denso pn:
096465-0920

Toyota / Denso - Japan

2025 06 25
2232117840
2232117420
0964650920