Used Saturn Parts

Most late Saturns have a GM twin. The Ion sits on GM's Delta platform alongside the Chevrolet Cobalt and HHR; the Aura is an Epsilon car whose closest platform companion is the seventh-generation Chevrolet Malibu; the Outlook is a Lambda crossover sharing its architecture, 3.6 V6 and 6T75 six-speed automatic with the Buick Enclave, Chevrolet Traverse and GMC Acadia; the Sky roadster shares GM's Kappa platform with the Pontiac Solstice.

Then there are the imports and the Honda. The first-generation Vue (2002-2007) was the first vehicle on GM's Theta platform, with its unibody shared with the Chevrolet Equinox, Pontiac Torrent and Opel Antara — and from 2004 every six-cylinder Vue used Honda's J35 V6 with a Honda transmission, through the 2007 model year. The second-generation Vue launched for 2008 as a rebadged Opel Antara, and the 2008-2009 Astra is a rebadged Opel Astra. A Saturn part can trace back to Opel or Honda, which changes where we look.

• If your Saturn has the 3.6-litre V6, the timing chain is the first thing to check. Aura from 2007-2009, Outlook from 2008-2010 and second-generation Vue from 2008-2010 are all named in GM's High Feature V6 timing-chain bulletin, which applies to cars carrying RPO LY7 and built after 15 July 2006 and lists codes P0008, P0009 and P0016 through P0019 as the tell. A stretched chain can look like an engine problem, so diagnose before you replace.
• Two safety recalls hit Saturns directly. GM's ignition-switch recall was expanded to include 2003-2007 Ion and 2007 Sky vehicles, where key-ring weight or a jarring event can move the switch out of the run position, shutting the engine off and disabling the airbags; a separate recall covers 2004-2007 Ion and 2008-2009 Aura cars for sudden loss of electric power steering assist. None of that is DIY territory: a dealer can confirm by VIN whether the remedies were ever performed, and that answer changes whether a used switch or steering component is the right purchase at all.
• On the transmission side, know the four-cylinder Vue's VTi continuously variable transmission: GM cancelled it for 2005 because of reported poor reliability, replacing it with a four-speed automatic on front-drive cars while the all-wheel-drive CVT ran only until stock was gone. Tell us if you have a VTi car.

Safety- and emissions-related parts should be diagnosed and installed by a licensed mechanic.

• 'Saturn Vue' names two unrelated vehicles — the 2002-2007 Theta car and the 2008-onward Opel Antara rebadge. Almost nothing crosses.
• A six-cylinder Vue from the 2004-2007 model years has a Honda J35 V6 and a Honda transmission, not a GM V6 — GM V6 listings for the same year are the wrong parts.
• S-Series cars (1991-2002) use dent-resistant polymer exterior panels on GM spaceframe construction. Those panels don't rust, but they are Saturn-specific and mount to a structure other GM cars don't share, so body parts come from Saturn donors only.

The engine character in the VIN does more work on a Saturn than on most cars, because Saturn engines came from three different sources — GM, Honda and Opel. On a GM car VIN the 8th position is the engine type, the 4th the platform and the 10th the model year, and Saturn cars are identified by the 1G8 prefix. Send the whole VIN with the body style; for option and axle questions add the RPO codes from the Service Parts Identification label.