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GM 12594939
Timing Cover, Front

2007-2020 GM

Customer Questions & Expert Answers (9)
GM 12594939 Timing Cover, Front
GM 12594939 Timing Cover, Front
GM 12594939 Timing Cover, Front
  • Part Description
    Cover-Engine Front (Machining)
  • Position
    Front
  • Manufacturer
    General Motors
Make sure this part fits
$44.92 MSRP: $76.47
You Save: $31.55 (42%)
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  • 12594939 Timing Cover, Front is Ref No. 18 in the diagram below

    2012 GMC Sierra 2500 HD Timing Cover, Front Diagram for 12594939
    The diagram listed above is for your reference. View diagram for your vehicle

    Related Parts for 12594939

  • Vehicle Fitment

    Year Make Model Trim Engine
    2007-2014 Cadillac EscaladeBase, Luxury, Platinum, Premium8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
    2007-2014 Cadillac Escalade ESVBase, Luxury, Platinum, Premium8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
    2007-2013 Cadillac Escalade EXTBase, Luxury, Premium8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
    2010-2013 Chevrolet AvalancheBlack Diamond LS, Black Diamond LT, Black Diamond LTZ, LS, LT, LTZ8 Cyl 5.3 L FLEX
    2010-2015 Chevrolet CamaroSS, ZL18 Cyl 6.2 L GAS
    2010-2012 Chevrolet ColoradoLT8 Cyl 5.3 L GAS
    2010-2014 Chevrolet Express 1500Base, LS, LT8 Cyl 5.3 L FLEX
    2010-2020 Chevrolet Express 2500Base, LS, LT8 Cyl 4.8 L FLEX, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    2010-2020 Chevrolet Express 3500Base, LS, LT8 Cyl 4.8 L FLEX, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    2010-2013 Chevrolet Silverado 1500Hybrid, LS, LT, LTZ, WT, XFE8 Cyl 4.8 L FLEX, 8 Cyl 5.3 L FLEX, 8 Cyl 6.0 L FULL HYBRID EV-FLEX (FHEV), 8 Cyl 6.2 L FLEX
    View More
    Warning: California's Proposition 65

  • Customer Questions & Expert Answers

    Q:
    Is this 12594939 designed for my car? Posted by ChevyPartsGiant Specialist
    A:
    Please Select Your Vehicle model to see if part number 12594939 is suitable before ordering.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the engine front Timing Cover for RPOs LY6/L76/L92 on Cadillac Escalade ESV? Posted by Customer
    A:
    To replace the engine front cover for rpos ly6/l76/l92, start by removing the Water Pump, crankshaft balancer, as well as disconnecting the engine harness electrical connecter from the camshaft position (CMP) sensor wire harness. Next, loosen the oil pan-to-front cover bolts, front cover bolts (501), and then remove the front cover (502) and gasket (503), and discard the old gasket. Take off the crankshaft front oil seal, and if the engine front cover is to be replaced, proceed to remove the cmp sensor wire harness bolts (738), disconnect the wire harness from the cmp sensor, and remove the cmp sensor wire harness (737) and cmp sensor (703). Alsoimitive recover the cmp actuator magnet bolts (751) & magnet (752) discarding the cmp actuator magnet gasket (753). For installation, be careful not to reuse the crankshaft oil seal or front cover gasket and use no sealant unless stated. Center the crankshaft front oil seal correctly to avoid premature wear or leaking. When replacing the front cover, install a new cmp actuator magnet gasket (753), the cmp actuator magnet (752) and the bolts (751) applying 12 n.m (106 lb in). Check for wear and tear and lubricate the cmp sensor o-ring seal (704) with clean engine oil and then install the cmp sensor (703). Mount the cmp sensor wire harness (737) to the front cover, take it to the cmp sensor, then take the wire harness bolts (738) and tighten them to 12 n.m (106 lb in). Apply 5 mm (0.20 in) bead of sealant to the oil pan-to-engine block junction, place a new engine front cover gasket- (503) and front cover (502) onto the engine, and tighten front cover bolts (501) and oil pan to the front cover bolts until tight. Apply the j 41476 front and rear cover alignment tool (J 41476) to align the front cover, install the crankshaft balancer bolt snugly. Lastly, tighten the oil pan to front cover bolts at 25 n.m (18 lb ft), tighten the engine front cover bolts at 25 n.m (18 lb ft), remove the j41476, connect the engine harness electrical connector back to cmp sensor wire harness, replace a new crankshaft front oil seal and install the Water Pump.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the engine front timing cover on GMC Yukon? Posted by Customer
    A:
    If you are to change the engine front cover, remove the Water Pump and crankshaft balancer first. Unplug the cmp sensor wire harness from cmp actuator magnet and the engine harness from cmp sensorarness. The next step is to remove Oil Pan to front cover bolts and front cover bolts (501), after which the front cover (502) should be removed along with its gasket (503) which should be discarded. Strip the crankshaft front oil seal off it and in case of changing the engine front cover take off the cmp sensor wire harness and bolts and disconnecting it from the cmp sensor off and besides taking off the cmp sensor wire harness and the cmp sensor (703) and cmp actuator magnet bolts (751) and magnet (752) but discarding cmp actuator magnet gasket (753). For installation, do not use the reused crankshaft oil seal or the front cover gasket and do not apply the sealant to the front cover gasket in the absence of instructions. Use the en-48853 front cover alignment tool which will adjust the crankshaft front oil seal properly. Install a new cmp actuator magnet gasket (753), put the cmp actuator magnet (752) and bolts (751) on and tighten them to 12 nm (106 lb in) check the cmp sensor o-ring seal (704) for damage, lubricate its o-ring with clean engine oil and install the cmp sensor (703). Mount the cmp sensor wire harness to the front cover, attach it to the compressor pressure sensor, tighten the cmp sensor wire harness bolts to 12 nm (106 lb in), and apply gasket between the wire harness and the front cover. Put a 5 mm, 20 mm 0.20in,0.80in length bead of sealant on the Oil Pan, the Oil Pan to engine block junction ,and then to position the new engine front cover gasket (503) and front cover (502) on the engine. Putting in front cover bolts (501) until snug in sequence avoiding overtightening, oil pan to front cover bolts in finger-tight sequence. Install the crank shaft balancer bolt partially tight then tighten the Oil Pan to front cover at 25 nm (18 lb ft) then tighten the engine front cover bolts at 25 nm (18 lb ft). Unplug the tools, place the cmp sensor, and connect the engine harness electrical connector to the cmp sensor wire harness electrical connector and the Camshaft Position Sensor wire harness electrical connector to the cmp actuator magnet. Finally, seal a new crankshaft front oil seal and also the Water Pump.
    Posted by ChevyPartsGiant Specialist
    Q:
    What components are removed after the power steering pump for the 2010 Chevrolet Camaro? Posted by Customer
    A:
    Remove the crankshaft balancer and the camshaft position sensors, followed by the camshaft position actuator solenoid valves from the front cover.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Timing Cover
    Q:
    How should the CMP sensor O-ring seal be treated for the 2010 Chevrolet Express 3500? Posted by Customer
    A:
    Inspect the CMP sensor O-ring seal for damage; if undamaged, lubricate it with clean engine oil and install the CMP sensor.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Timing Cover
    Q:
    What should be done after lowering for the 2010 GMC Canyon? Posted by Customer
    A:
    Remove the 7 mm center bolt and the remaining engine front cover bolts.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Timing Cover
    Q:
    What is the torque specification for tightening the bolts for the 2009 Chevrolet Tahoe? Posted by Customer
    A:
    Tighten the oil pan to front cover bolts and engine front cover bolts to 25 Nm (18 lb ft).
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Timing Cover
    Q:
    What is the first step to replace the engine front cover for the 2010 GMC Sierra 1500? Posted by Customer
    A:
    First, remove the water pump, crankshaft balancer, and oil pan.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Timing Cover
    Q:
    How should the front cover be aligned for the 2008 GMC Yukon? Posted by Customer
    A:
    Use the Front and Rear Cover Alignment Tool (J 41476) to align the front cover.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Timing Cover
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

OEM GM Timing Cover, Front 12594939 Designed for Proper Fit and Performance

Original OEM GM parts deliver superior quality and meet all performance standards needed for optimal automotive operation. The authentic part identified by 12594939 Timing Cover, Front is available in the market under the name GM Timing Cover. This genuine product has a full warranty coverage from the manufacturer available at all authorized GM dealers throughout the United States. This part 12594939 Timing Cover, Front fits certain Chevrolet Colorado, Tahoe, Camaro models, as well as GMC Sierra 1500, Yukon, Canyon. Additionally, it is compatible with Cadillac Escalade, Escalade ESV, Escalade EXT and Hummer H3, H3T models.
The original GM component designated by manufacturer part number 12594939 maintains top performance when functioning as the Cover-Engine Front (Machining) unit at its Front. The component 12594939 is constructed from durable material and its dimensions span 3.6 x 15.2 x 14.8 inches while weighing 2.70 Pounds. The Direct Replacement component is ready in New condition to ensure full compatibility with your vehicle system. This component receives the designation of Front Cover; Cover, Engine Front Cover. The part 12594939 has available replacement options. GM manufacturer provides a warranty that ensures reliable operation of this product. The Shipping Policy and Return Policy pages outline complete details regarding shipping procedures and return processes.
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