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- #21
The B engine primer pump appears to be common with all the following Toyota diesel engines:
This primer pump is sold under any of the following Bosch part numbers:
When you install it, you should replace the little copper washer it seats on (Bosch supplied one with my new pump), and you need to be careful of the spring and check valve that sit beneath it:
Unlike the OEM primer pump, this type is easy to install/remove because it requires a smaller spanner (only 17mm) and the hex is long enough to allow that spanner to be moved around obstacles as you turn it:
PS. - The thread is M16 x 1.5 so if you have a primer pump with this thread (and the entry-hole looks like it's made to accomodate a spring and check-valve stem) - then it should fit your engine.
- 2B
- 3B
- 13BT
- H
- 2H
- 12HT

This primer pump is sold under any of the following Bosch part numbers:
- 2 447 010 033
- 2 447 010 038
- 2 447 222 125
- 2 447 222 126
When you install it, you should replace the little copper washer it seats on (Bosch supplied one with my new pump), and you need to be careful of the spring and check valve that sit beneath it:

Unlike the OEM primer pump, this type is easy to install/remove because it requires a smaller spanner (only 17mm) and the hex is long enough to allow that spanner to be moved around obstacles as you turn it:

PS. - The thread is M16 x 1.5 so if you have a primer pump with this thread (and the entry-hole looks like it's made to accomodate a spring and check-valve stem) - then it should fit your engine.
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