Help keep drivetrain vibration out of the cabin and hold your transmission firmly in place with the Pioneer Transmission Mount, part number 621005. It is an exact-fit replacement for the 1994-2005 Chevrolet Astro and the 1994-2005 GMC Safari. See the "Vehicles it fits" section for engine-specific application details.
A transmission mount helps support and locate the transmission. It isolates vibration and limits powertrain movement so less of it reaches the vehicle's body. Pioneer offers its mounts as a premium replacement solution, built around these features:
Signs this part may need replacing: a clunk or thump when accelerating, decelerating, or shifting; increased vibration at idle; visible cracks or separation in the rubber; or excessive transmission movement. Other components can produce similar symptoms, so diagnose the cause before replacing the mount.
What vehicles does the Pioneer 621005 fit?
It fits the 1994-2005 Chevrolet Astro and the 1994-2005 GMC Safari. See the "Vehicles it fits" section for engine-specific application details.
Is this an automatic transmission mount?
Yes. Pioneer lists part number 621005 under that name for the 1994-2005 Chevrolet Astro and the 1994-2005 GMC Safari.
What does a transmission mount do?
It helps support and locate the transmission. It isolates vibration and limits powertrain movement so less of it reaches the vehicle's body.
What are signs of a worn transmission mount?
Common signs include a clunk when accelerating, decelerating, or shifting, vibration at idle, and cracked or separated rubber. Diagnose the cause first, because other parts can cause similar symptoms.
What is Pioneer's Sure-Fit System?
It is Pioneer's process of testing each application on vehicle-specific fixtures, designed to deliver a hassle-free installation of the mount.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
