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Cadillac 12558057 Cylinder Head Assembly (W/ Valve)

GM 12558057 Cylinder Head Assembly (W/ Valve)
  • Part Description
    Head Assembly, Cyl (W/ Valve)
  • Replaces
    12529180
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Customer Questions & Answers

Product Specifications

BrandGenuine Cadillac
Manufacturer Part Number12558057
Part DescriptionHead Assembly, Cyl (W/ Valve)
Other NamesCylinder Head
Item Dimensions25.4 x 15.9 x 10.7 inches
Item Weight49.10 Pounds
ConditionNew
Fitment TypeDirect Replacement
Replaces12529180
Require Quantity2
ManufacturerGeneral Motors
SKU12558057
WarrantyThis genuine GM part is guaranteed by GM's factory warranty.
Shipping & ReturnShipping Policy Return Policy
Warning: California’s Proposition 65

Customer Questions & Answers

Q:
Do the two head designs interchange as far as bolt patterns and accessory mounting are concerned for the 1992 Chevrolet C1500? Posted by Customer
A:
Yes, the two head designs interchange as far as bolt patterns and accessory mounting are concerned.
Posted by GMPartsGiant Specialist
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Q:
What should be done before positioning new gaskets for the 1999 Chevrolet C1500? Posted by Customer
A:
Before positioning new gaskets over the dowel pins in the block, apply a thin coat of sealant to both sides if using a steel gasket, ensuring the raised bead faces up. Composition gaskets should be installed dry without sealant.
Posted by GMPartsGiant Specialist
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Q:
How can built-up scale be removed from the coolant passages for the 1989 Chevrolet C1500? Posted by Customer
A:
Remove built-up scale from the coolant passages and use a wire brush to clean the various holes and threaded holes.
Posted by GMPartsGiant Specialist
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Q:
How should the rocker arms and pivots be installed on the cylinder head studs for the 1992 Chevrolet C1500? Posted by Customer
A:
Install the rocker arms and pivots on the cylinder head studs, threading the nuts a few turns only.
Posted by GMPartsGiant Specialist
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Q:
What is the purpose of creating a template on a piece of cardboard for the 1989 Chevrolet K1500? Posted by Customer
A:
The template is created by outlining the cylinders and bolt pattern on a piece of cardboard to serve as a reference for head bolt positions. It helps maintain the original positions of the head bolts.
Posted by GMPartsGiant Specialist
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Q:
What should be done if the valve components are in good condition for the 1997 Chevrolet K1500? Posted by Customer
A:
If they are in good condition, reassemble the valve train components in the cylinder head without major servicing.
Posted by GMPartsGiant Specialist
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Q:
What are the components that need to be installed on the valve stem after the seals for the 1995 Chevrolet K1500? Posted by Customer
A:
After the seals, drop the spring seat or shims over the valve guide, then set the valve spring(s), shield, and retainer (or rotator) in place.
Posted by GMPartsGiant Specialist
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Q:
What should be done before removing the valves for the 1989 Chevrolet K1500? Posted by Customer
A:
Before removing the valves, it is important to label and store them, along with their related components, so they can be kept separate and reinstalled in the same valve guides they are removed from.
Posted by GMPartsGiant 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!

Genuine GM Part 12558057, the Right Choice

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