Description: Genuine GM Engine Intake Manifold Plenum, part number 12555840. This GM OEM engine intake manifold plenum delivers air to the engine's cylinders with factory-correct runner design and mounting. Made by General Motors to original equipment standards for correct fit, finish and durability—no guesswork with aftermarket parts. Verify fitment using your VIN or GM part number 12555840 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.

Description: DTS. Seville. XLR. 4.6l. SRX. 4.6l. All models. 4.6l. Manifold only. Aurora. 4.0l. Bonneville, LeSabre. Without supercharger. 4.6l. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors