GM Genuine Parts Vacuum Pump Seal 12668429

If a vacuum pump repair calls for a replacement seal, this GM Genuine Parts part is a focused option rather than a broad repair kit. Its vehicle-specific fit type makes the exact application an important part of the decision.

If you prioritize a part identified for a specific vehicle, that positioning may suit the job, if you prefer to choose from a confirmed fitment list, the details here leave a gap to resolve first.

For a practical repair, think of a technician working on a vacuum pump and checking the part number against the vehicle before opening the packaging. That simple step matters: the listing gives no vehicle models or years to confirm compatibility.

Getting the most from it

This is a vacuum pump seal, so it makes most sense when the repair calls for that component specifically—not when the source of a problem has yet to be identified. A seal helps contain the pump assembly, but the product details do not describe its material, design or the symptoms it is intended to address. Match the part number, 12668429, to the repair information for the vehicle rather than relying on the general product name alone.

The listed package dimensions are 2.6 in. L x 2.6 in. W x 0.4 in. H. Those are package measurements, not stated dimensions of the seal itself, so they should not be used to judge whether the part will physically fit a particular assembly. The listing describes the fit as vehicle-specific and says precise fit is intended to ease installation, but it does not identify the vehicles covered.

Why it’s worth it

The useful point here is the focused, vehicle-specific positioning: when a repair has already identified this seal as the required part, a dedicated replacement is a more direct purchase than a general assortment of seals. The listing also points buyers towards a GM dealer, independent service centre or body shop for proper installation, which is relevant if you are not planning to do the work yourself.

There is a meaningful trade-off. No fitment list, installation steps, seal material or additional contents are provided, so the description alone cannot establish whether this is the right part for your vehicle or whether anything else is included. A lack of that detail makes checking the part number with a qualified service provider a sensible step before committing to the repair.

Key takeaways

• Product: GM Genuine Parts vacuum pump seal, part number 12668429.
• Fit type: vehicle-specific, compatible vehicles are not named in the available details.
• Package dimensions: 2.6 in. L x 2.6 in. W x 0.4 in. H, these are not seal measurements.
• Installation: the listing recommends a GM dealer, independent service centre or body shop for proper installation.

It makes sense if the repair information for your vehicle calls for this exact part number and you want a dedicated seal rather than a multi-part assortment. Better to avoid it if you need confirmed vehicle compatibility from the product details alone, since that information is not provided here.

When to choose it

Choose this seal when a repair professional or reliable parts information has matched 12668429 to the vehicle and the vacuum pump work specifically requires a replacement seal. That gives the product’s vehicle-specific fit a clear purpose, without assuming it suits every GM vehicle. If the part number has not been verified, pause and ask a GM dealer, independent service centre or body shop to confirm the application. The listing’s installation guidance is useful, but it does not replace a fitment check or provide enough information to decide from package size alone.