95.5-2004 Tacomas & 96-2002 4Runners 4th gen pickups and 3rd gen 4Runners

99? Tacoma Motor Identification Question

Old Mar 3, 2011 | 09:13 AM
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lrayvick's Avatar
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99? Tacoma Motor Identification Question

We have a motor we are thinking about using in a project. The guy we got it from said it is a 99 Tacoma 2RZ-FE. It is an 8 port we think about 1995 vintage. The serial number from the lower left side of the motor behind the alternator in a horizontal stamp is 2010743. The manual transmission with it is serial number 5030462.

Can anyone tell me what year it is?

I went to some of the on-line sources for Tacoma engine codes but couldn't find the answer. I did find a list of serial numbers starting with the year 2000 but none older. I noted that list shows a 6 digit number for the 2&3RZFE not the 7 digit I have.

Last edited by lrayvick; Mar 5, 2011 at 09:26 PM. Reason: correction
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Old Mar 5, 2011 | 06:22 AM
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Why do you think it's one of the earliest era (1995.5 - 1997) 2RZ's. Does it have a distributor (or an open distributor port on the side)? If it's not configured to use a distributor, it can't be older than the 1998 model year.

I've never seen a reference source on Tacoma engine serial numbers. As far as I know you'd have to contact Toyota to find out what year it was built.
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Old Mar 5, 2011 | 06:29 AM
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Oops ... Forgot to mention ...

The 7-digit string consists of the plant code (first digit) plus the 6-digit engine serial number.
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Old Mar 5, 2011 | 09:25 PM
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Originally Posted by EnolaGaia
Oops ... Forgot to mention ...

The 7-digit string consists of the plant code (first digit) plus the 6-digit engine serial number.
We heard that an 8 port head means early 90s. It does not have a distributor. My son thinks it is a JDM motor.

Here is a source for codes but they are no earlier than year 2000: http://www.toyotapart.com/ENGINE_SER...SB-0301-08.pdf

Last edited by lrayvick; Mar 5, 2011 at 09:28 PM.
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Old Mar 6, 2011 | 07:39 AM
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In terms of the intake ports on the cylinder head, the 8-port design was used as late as the 2000 model year for non-California spec 2RZ and 3RZ engines. The design change to 4 larger intake ports was introduced for LEV ('California spec') engines with the 2000 model year.

If I'm not mistaken, Toyota went all 4-port with the 2RZ's as part of their 2000.5 mid-year adjustments. From 2000.5 or 2001 onward, all 2RZ's were 4-port with 4 coil packs.

If there's no distributor (or place for one), it can't be any earlier than a 1998 (assuming it's actually a Tacoma engine). If it's (a Tacoma engine with ...) 8-port and 2 coil packs it dates from 1998 to 2000.

If it's an engine from a non-Tacoma vehicle (or outside the USDM), I have no idea how to date it ...
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