Herm TDI
Vendor
- Joined
- Nov 21, 2001
- TDI
- 2002 Golf GLS Malone Stage 3, P+520 nozzles, 11MM Inj pump, Sachs VR6 clutch, Stelth Race Pipe, Immo Deleat, EGR Deleat
I have been searching through ETKA on the topic of TDI pistons
Tring to sort out what pistions are interchangeable and what is not.
Here is what I'm finding:
1999
1999 AHU (A-3) engine # 101808 and above
Cyl 1 & 2 038-107-065-AA (MAHLE)
Cyl 3 & 4 038-107-065-AB (MAHLE)
1999 AHU / 1Z (A-3 & B-4) engine # 101807 and lower
Cyl 1 & 2 038-107-065-D
Cyl 3 & 4 038-107-065-E
1999 AHU engine # 101808 and above
Cyl 1 & 2 028-107-065-BK (ALCAN)
Cyl 3 & 4 028-107-065-BN (ALCAN)
1998
1998 AHU / 1Z (A-3 & B-4) engine # 101807 and lower
Cyl 1 & 2 038-107-065-D
Cyl 3 & 4 038-107-065-E
1998 AHU engine # 101808 and higher
Cyl 1 & 2 028-107-065-BK (ALCAN)
Cyl 3 & 4 028-107-065-BN (ALCAN)
1998 AHU (A-3) engine # 101808 and higher
Cyl 1 & 2 038-107-065-AA (MAHLE)
Cyl 3 & 4 038-107-065-AB (MAHLE)
1997
1997 1Z / AHU engine # 101807 and lower
Cyl 1 & 2 038-107-065-D
Cyl 3 & 4 038-107-065-E
1997 AHU (A-3) engine # 101808 and higher
Cyl 1 & 2 038-107-065-AA (MAHLE)
Cyl 3 & 4 038-107-065-AB (MAHLE)
1997 AHU (A-3) engine # 101808 and higher
Cyl 1 & 2 028-107-065-BK (ALCAN)
Cyl 3 & 4 028-107-065-BN (ALCAN)
1996 1Z engine # 101807 and lower
Cyl 1 & 2 038-107-065-D
Cyl 3 & 4 038-107-065-E
1996 engine # 101808 and higher
Cyl 1 & 2 038-107-065-AA (MAHLE)
Cyl 3 & 4 038-107-065-AB (MAHLE)
A-4 ALH engine
A-4 ALH series 1999.9 thru 2003
Cyl 1 & 2 038-107-065-AA (MAHLE)
Cyl 3 & 4 038-107-065-AB (MAHLE)
Now here is where I'm a bit confounded:
The AHU and 1Z engines both have the same block (028-100-090-TX)
Both engines use the same crank (028-105-101-L)
Both engines use the same rods (028-198-401-F)
The only thing I see different between these engines (1Z / AHU) are the pistons.
Early: AHU / 1Z (A-3 & B-4) engine # 101807 and lower
Cyl 1 & 2 038-107-065-D
Cyl 3 & 4 038-107-065-E
Late:
Cyl 1 & 2 038-107-065-AA
Cyl 3 & 4 038-107-065-AB
The A-4 ALH engine uses the same connecting rods (028-198-401-F)
My questions are:
Ques. #1
Are these pistons the same but only different manufactures?
1998 AHU engine # 101808 and higher
Cyl 1 & 2 028-107-065-BK (ALCAN)
Cyl 3 & 4 028-107-065-BN (ALCAN)
1998 AHU (A-3) engine # 101808 and higher
Cyl 1 & 2 038-107-065-AA (MAHLE)
Cyl 3 & 4 038-107-065-AB (MAHLE)
Ques. #2
Are the pistons for the higher # series (101808 & higher) the same design but different manufactures? ALCAN ~V~MAHLE ? In other words are these pistons interchangeable?
Cyl 1 & 2 028-107-065-BK (ALCAN)
Cyl 3 & 4 028-107-065-BN (ALCAN)
Cyl 1 & 2 038-107-065-AA (MAHLE)
Cyl 3 & 4 038-107-065-AB (MAHLE)
Ques. #3
If you were rebuilding a 1Z or AHU of any series # (high or low)
What is the reason you could not use the A-4 pistons (as long as you used all 4 of the same P/N AA & AB)?
Cyl 1 & 2 038-107-065-AA (MAHLE)
Cyl 3 & 4 038-107-065-AB (MAHLE)
I know this is long winded but it would let me sleep tonight if I have some good solid answers.
Tring to sort out what pistions are interchangeable and what is not.
Here is what I'm finding:
1999
1999 AHU (A-3) engine # 101808 and above
Cyl 1 & 2 038-107-065-AA (MAHLE)
Cyl 3 & 4 038-107-065-AB (MAHLE)
1999 AHU / 1Z (A-3 & B-4) engine # 101807 and lower
Cyl 1 & 2 038-107-065-D
Cyl 3 & 4 038-107-065-E
1999 AHU engine # 101808 and above
Cyl 1 & 2 028-107-065-BK (ALCAN)
Cyl 3 & 4 028-107-065-BN (ALCAN)
1998
1998 AHU / 1Z (A-3 & B-4) engine # 101807 and lower
Cyl 1 & 2 038-107-065-D
Cyl 3 & 4 038-107-065-E
1998 AHU engine # 101808 and higher
Cyl 1 & 2 028-107-065-BK (ALCAN)
Cyl 3 & 4 028-107-065-BN (ALCAN)
1998 AHU (A-3) engine # 101808 and higher
Cyl 1 & 2 038-107-065-AA (MAHLE)
Cyl 3 & 4 038-107-065-AB (MAHLE)
1997
1997 1Z / AHU engine # 101807 and lower
Cyl 1 & 2 038-107-065-D
Cyl 3 & 4 038-107-065-E
1997 AHU (A-3) engine # 101808 and higher
Cyl 1 & 2 038-107-065-AA (MAHLE)
Cyl 3 & 4 038-107-065-AB (MAHLE)
1997 AHU (A-3) engine # 101808 and higher
Cyl 1 & 2 028-107-065-BK (ALCAN)
Cyl 3 & 4 028-107-065-BN (ALCAN)
1996 1Z engine # 101807 and lower
Cyl 1 & 2 038-107-065-D
Cyl 3 & 4 038-107-065-E
1996 engine # 101808 and higher
Cyl 1 & 2 038-107-065-AA (MAHLE)
Cyl 3 & 4 038-107-065-AB (MAHLE)
A-4 ALH engine
A-4 ALH series 1999.9 thru 2003
Cyl 1 & 2 038-107-065-AA (MAHLE)
Cyl 3 & 4 038-107-065-AB (MAHLE)
Now here is where I'm a bit confounded:
The AHU and 1Z engines both have the same block (028-100-090-TX)
Both engines use the same crank (028-105-101-L)
Both engines use the same rods (028-198-401-F)
The only thing I see different between these engines (1Z / AHU) are the pistons.
Early: AHU / 1Z (A-3 & B-4) engine # 101807 and lower
Cyl 1 & 2 038-107-065-D
Cyl 3 & 4 038-107-065-E
Late:
Cyl 1 & 2 038-107-065-AA
Cyl 3 & 4 038-107-065-AB
The A-4 ALH engine uses the same connecting rods (028-198-401-F)
My questions are:
Ques. #1
Are these pistons the same but only different manufactures?
1998 AHU engine # 101808 and higher
Cyl 1 & 2 028-107-065-BK (ALCAN)
Cyl 3 & 4 028-107-065-BN (ALCAN)
1998 AHU (A-3) engine # 101808 and higher
Cyl 1 & 2 038-107-065-AA (MAHLE)
Cyl 3 & 4 038-107-065-AB (MAHLE)
Ques. #2
Are the pistons for the higher # series (101808 & higher) the same design but different manufactures? ALCAN ~V~MAHLE ? In other words are these pistons interchangeable?
Cyl 1 & 2 028-107-065-BK (ALCAN)
Cyl 3 & 4 028-107-065-BN (ALCAN)
Cyl 1 & 2 038-107-065-AA (MAHLE)
Cyl 3 & 4 038-107-065-AB (MAHLE)
Ques. #3
If you were rebuilding a 1Z or AHU of any series # (high or low)
What is the reason you could not use the A-4 pistons (as long as you used all 4 of the same P/N AA & AB)?
Cyl 1 & 2 038-107-065-AA (MAHLE)
Cyl 3 & 4 038-107-065-AB (MAHLE)
I know this is long winded but it would let me sleep tonight if I have some good solid answers.