I'm posting this here because it's something relating to the 4A-FE and the early 4A-GE. Both gens of 4A-FE rods and of course early bigport GE rods have 40mm big ends. But the bearing part numbers are different. Any ideas why that is?
Mark 1 bearings used as examples.
4A-FE:
13041-15030-01 (superseded by 13041-15031-01)
4A-GE:
13041-16040-01
Is it something about the GE bearings being for higher RPM / "race use?" Are the rod IDs slightly different? Rod widths are different?
40mm rod bearings question
- Rogue-AE95
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40mm rod bearings question
'88 Corolla All-Trac x2 (manual, auto)
- oldeskewltoy
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Re: 40mm rod bearings question
buy a set of each and tell us............
OST Cyl head porting, - viewtopic.php?f=22&t=300
Building a great engine takes knowing the end... before you begin
Enjoy Life... its the only one you get!
Building a great engine takes knowing the end... before you begin
Enjoy Life... its the only one you get!
Re: 40mm rod bearings question
If you visit the Mahle/clevite web site, they indicate the same P/N CB1361P bearing for both motors.
- Rogue-AE95
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Re: 40mm rod bearings question
Thanks Dave. It's odd that Toyota changed the part number if the parts themselves did not change.
'88 Corolla All-Trac x2 (manual, auto)
Re: 40mm rod bearings question
It is common for OEM,s to change part numbers when they change suppliers, just for tracking/tracing. We will possibly never know why the P/N change.