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GM 12561858
Fuel Rail

Name: GM 12561858
Brand: GM
SKU: 12561858
Price: 255.81 USD
Availability: Discontinued

1998-2005 GM

Customer Questions & Expert Answers (11)

Part Description
Rail, Fuel Injection
Manufacturer
General Motors
Manufacturer's Notes
This part is discontinued.

Make sure this part fits

Product Specifications
Vehicle Fitment
Customer Questions & Expert Answers

Product Specifications

Brand	Genuine GM
Manufacturer Part Number	12561858
Part Description	Rail, Fuel Injection
Item Dimensions	18.3 x 17.7 x 5.6 inches
Item Weight	2.00 Pounds
Condition	New
Fitment Type	Direct Replacement
Manufacturer	General Motors
SKU	12561858
Warranty	This genuine GM part is guaranteed by GM's factory warranty.
Shipping & Return	Shipping Policy Return Policy

Warning: California's Proposition 65

Vehicle Fitment

Year Make Model	Trim	Engine
2004-2005 Cadillac CTS	V	8 Cyl 5.7 L GAS
1998-2002 Chevrolet Camaro	Z28, Z28 SS	8 Cyl 5.7 L GAS
1999-2004 Chevrolet Corvette	50th Anniversary Edition, 50th Anniversary Edition Pace Car, Base, Z06	8 Cyl 5.7 L GAS
1998-2002 Pontiac Firebird	Formula, Trans Am	8 Cyl 5.7 L GAS
2004 Pontiac GTO	Base	8 Cyl 5.7 L GAS

Customer Questions & Expert Answers
Q:
Is this 12561858 designed for my car? Posted by ChevyPartsGiant Specialist
A:
Please Select Your Vehicle model to see if part number 12561858 is suitable before ordering.
Posted by ChevyPartsGiant Specialist
Q:
How to service the fuel rail on Chevrolet Corvette? Posted by Customer
A:
The service process of the Fuel Rail requires fuel pressure gauge (J 34730-1A) and fuel line quick connect separator tool set (J 37088-A). When removing the Fuel Rail assembly disconnect the negative Battery Cable while supporting the rail to maintain its structure and avoid damaging both terminals and spray tips. Open pipelines should be protected from contaminants by applying fitting caps and pipe plugs. You should use gm x-30a spray type engine cleaner or its equivalent to clean Fuel Rail assembly by removing left and right Fuel Rail covers, relieving fuel system pressure, then repeat the cleaning process. The maintenance technician should first disconnect the fuel feed hose from the Fuel Rail and disconnect the electrical connectors from each fuel injector before noting the injector position for restoration. Be aware of the location of the ground strap which needs reinstallation when it is situated on the Intake Manifold. You need to take out the Fuel Rail attaching bolts followed by the removal of the Fuel Rail assembly but dispose of lower o-ring seals from each injector. The installation process requires clean engine oil lubrication of new lower injector o-ring seals before placing them onto each injector spray tip. A Fuel Rail stop bracket needs installation because it safeguards the Fuel Rail from frontal crashes. Threadlock gm p/n 12345382 with a 5 mm (0.020 in) band should be applied to Fuel Rail bolt threads before torquing each bolt to 10 n.m (89 lb in). Complete the electrical connection order of gas injectors and attach the fuel hose to the Fuel Rail before tightening the fuel cap and reconnecting the negative battery terminal. A leak inspection requires turning the ignition on for 2 seconds followed by 10 seconds off and then another activation of the ignition to verify fuel leaks. Before completing the installation you must put on right and left Fuel Rail covers and then program the transmitters and carry out an idle learn step.
Posted by ChevyPartsGiant Specialist
Q:
What is the correct way to attach the fuel injectors to the fuel rail for the 2004 Cadillac CTS? Posted by Customer
A:
Attach the fuel injectors to the fuel rail with new retainer clips, ensuring the injectors are aligned with the electrical connectors perpendicular to the crankshaft centerline.
Posted by ChevyPartsGiant Specialist
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Q:
What should be done to prevent contaminants from entering the open pipes and passages for the 2005 Cadillac CTS? Posted by Customer
A:
Cap the fittings and plug the holes.
Posted by ChevyPartsGiant Specialist
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Q:
What should be removed from the intake manifold for the 2002 Chevrolet Camaro? Posted by Customer
A:
The vacuum source.
Posted by ChevyPartsGiant Specialist
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Q:
How should the fuel rail be removed for the 2000 Chevrolet Camaro? Posted by Customer
A:
Carefully remove the fuel rail with equal force on both sides.
Posted by ChevyPartsGiant Specialist
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Q:
What is the first step in the replacement process for the 2003 Chevrolet Corvette? Posted by Customer
A:
Disconnect the negative battery cable and relieve the fuel system pressure.
Posted by ChevyPartsGiant Specialist
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Q:
What should be done during installation regarding O-rings for the 2001 Chevrolet Camaro? Posted by Customer
A:
Replace the O-rings on all components, ensuring the black O-ring is at the top and the brown O-ring is at the bottom of the fuel injector.
Posted by ChevyPartsGiant Specialist
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Q:
How should new lower injector O-ring seals be prepared for installation for the 2002 Chevrolet Corvette? Posted by Customer
A:
Lubricate them with clean engine oil and install them on the spray tip end of each injector.
Posted by ChevyPartsGiant Specialist
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Q:
What is the first step in the replacement process for the 2001 Chevrolet Corvette? Posted by Customer
A:
Disconnect the negative battery cable.
Posted by ChevyPartsGiant Specialist
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Q:
What is the final step after checking for leaks for the 2004 Chevrolet Corvette? Posted by Customer
A:
Install the right and left fuel rail covers.
Posted by ChevyPartsGiant Specialist
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If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

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