Citumo Engine Motor Mount Set for Chevy, GMC & Cadillac — 3-Piece 15854939, Vibration-Reducing

Citumo's 3-piece engine motor mount set (part 15854939 / A5365HY) replaces worn mounts to reduce vibration and stabilize the engine in compatible Chevy, GMC, and Cadillac vehicles.

Worn motor mounts allow extra engine movement, transmit vibration into the cabin, and can cause premature wear on related components. This Citumo replacement set — three mounts included — is manufactured from durable materials designed to restore proper engine positioning and help minimize excessive noise and shake. It suits a range of GM full-size trucks and SUVs when matched to the correct year, engine, and transmission.

Will these mounts fit my Tahoe, Silverado, Sierra, Yukon, Suburban, Avalanche or Escalade?

Fitment depends on year, engine displacement, transmission type, and the vehicle’s original part number. The Citumo set lists reference numbers A5365HY and 15854939 and covers many 2007–2014 GM full-size trucks and SUVs when those references match your OEM parts.

• Compatible model years: commonly 2007–2014 for Tahoe, Silverado, Suburban, Avalanche, Sierra, Yukon, Escalade.
• Compare your current mount’s part number to 15854939 or A5365HY before ordering.
• Check engine displacement and transmission type to confirm exact fit.

How will installing the Citumo motor mount set improve vehicle performance?

Replacing hardened or failing mounts reduces engine movement, which lowers cabin vibration and abnormal noise. Properly secured engine mounts also prevent excess stress on drivetrain components and can improve perceived refinement while driving.

• Reduces engine vibration felt through the chassis and steering wheel.
• Helps limit noise transmission into passenger compartment.
• Restores correct engine alignment to reduce strain on axles and accessories.

What should I know about installation and compatibility checks?

Installation is straightforward for a professional or experienced DIYer, though some mounts require access behind heat shields or loosening nearby fasteners for alignment. If a bolt doesn’t line up, loosening a nut and temporarily removing the heat shield can provide the clearance needed to seat the mount.

• Inspect your vehicle’s current mount part number before purchase (15854939/A5365HY).
• If bolts won’t align, loosen nuts or remove heat shield as instructed.
• Package includes three mounts — replace all required locations indicated by your vehicle’s manual.

What materials and durability can I expect from these replacement mounts?

Citumo uses resilient rubber bonded to metal components to balance vibration absorption with long-term durability. Over time rubber hardens, so fresh replacement mounts restore the intended flex and damping characteristics that reduce noise and movement.

• Durable rubber compounds bonded to stamped metal housings for strength.
• Engineered to restore original isolation and reduce premature wear.
• Sold as a set of three pieces to address the most commonly replaced locations.

Who is this for: This Citumo 3-piece motor mount set is aimed at owners and technicians of GM full-size trucks and SUVs (commonly 2007–2014 model years) who need a reliable OEM-replacement style mount to restore engine stability and reduce vibration. Choose this set if your vehicle shows excessive engine movement, new or unusual vibration, or if the current mount part number matches 15854939/A5365HY. Always confirm year/make/model, engine size, transmission type, and OEM part number before purchasing to ensure correct fitment.