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Your cart is empty. Brand New Thermostat Water Pump Coolant Bypass Steel Pipe
Allows Replacement of a Leaking or Rusted HVAC Heater Bypass Pipe
From Thermostat to Lower Intake; Bypass; Includes:1 Steel Thermostat Bypass Pipe
Compatible With 1994-2005 Buick Century (3.1L V6)
Compatible With 1994-1996 Buick Regal (3.1L V6)
Compatible With 2002-2005 Buick Rendezvous (3.4L V6)
Compatible With 1994-1998 Buick Skylark (3.1L V6)
Compatible With 2005-2009 Chevrolet Equinox (3.4L V6)
Compatible With 2000-2005 Chevrolet Impala (3.4L V6)
Compatible With 1996-2001 Chevrolet Lumina (3.1L V6; 3.4L V6)
Compatible With 1996-1996 Chevrolet Lumina APV (3.4L V6)
Compatible With 1997-2003 Chevrolet Malibu (3.1L V6)
Compatible With 1996-2005 Chevrolet Monte Carlo (3.1L V6; 3.4L V6)
Compatible With 1997-2005 Chevrolet Venture (3.4L V6)
Compatible With 1994-1998 Oldsmobile Achieva (3.1L V6)
Compatible With 1999-2004 Oldsmobile Alero (3.4L V6)
Compatible With 1997-1999 Oldsmobile Cutlass (3.1L V6)
Compatible With 1994-1996 Oldsmobile Cutlass Ciera (3.1L V6)
Compatible With 1994-1997 Oldsmobile Cutlass Supreme (3.1L V6)
Compatible With 1996-2004 Oldsmobile Silhouette (3.4L V6)
Compatible With 2001-2005 Pontiac Aztek (3.4L V6)
Compatible With 1994-2005 Pontiac Grand Am (3.1L V6; 3.4L V6)
Compatible With 1994-2003 Pontiac Grand Prix (3.1L V6)
Compatible With 1999-2005 Pontiac Montana (3.4L V6; 3.5L V6)
Compatible With 1996-1998 Pontiac Trans Sport (3.4L V6)
See Compatibility Chart To Verify Your Specific Vehicle Year, Make, & Model
Replaces 12590279
⚠ California Proposition 65 WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
MITD
Reviewed in the United States on July 31, 2024
Anyone that said "this didn't fit properly" or. "had to sand a few thousandths off" is doing it wrong.There's nothing wrong with this part as long as you're lining it up properly BEFORE pressing it in with the CORRECT tool. I didn't have the tool (don't know anyone who does) so I made one.This is an 'interference-fit/press-in' part and if you bang on it like a monkey or sand it trying to get it to slip in, you'll damage it.This part fit correctly WITHOUT modification and after a few minor changes to my homemade tool, installed and worked perfectly. (Don't forget the pipe sealant) ;)Some notes on the homemade tool: I modified a one inch wide washer to closely fit the diameter of the pipe after cutting it into a 'U' shape so that it slipped on 'over the lip' above the press-fit pipe end.I then used the radius of the table saw to cut a slot into the center of a two inch square six inch piece of hardwood that fit the diameter of the pipe that accommodated the first bend and covered the area of the washer and after clamping that in place, used that to press in the new pipe - BOOM.
zac sipe
Reviewed in the United States on November 10, 2022
seemed to be decent quality, but the bends and mounting bracket were not perfect and caused interference with the fuel rail install.
matt
Reviewed in the United States on April 20, 2022
Wasn't confident in this part considering reviews but didn't have any other options. I had minor issues but on close inspection it was a previous purchaser that returned it. Small gouges in the pressed fit end had to be sanded smooth. Looked like it was partially forced into a corroded block. Emery cloth, 60 seconds work and it pressed in. The mounting bolt did not line up. I could barely see the vice marks where it was bent. Shoved a rod in the end and bent it back 1/4 inch and bolt fit fine. No other issues and no leaks.
David A
Reviewed in the United States on November 21, 2019
Does not fit properly. Is not bent correctly (had to rebend - not easy).Does not allow fuel rail to seat injectors (had to modify fuel rail bracket) Press fit end @ thermostat too large of diameter (had to sand to reduce several thousands, also not easy being SS)mounting bracket did not line up obviously and broke off.HIGHLY recommend GM OEM part.
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