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Oldsmobile 12458911 Chain Kit,Timing (W/Sprockets)

1997-2001 Oldsmobile Bravada

Customer Questions & Expert Answers (6)
GM 12458911 Chain Kit,Timing (W/Sprockets)
  • Part Description
    CHAIN KIT, Engine Timing
  • Manufacturer
    General Motors
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  • Product Specifications
  • Vehicle Fitment
  • Customer Questions & Expert Answers
  • Product Specifications

    BrandGenuine Oldsmobile
    Manufacturer Part Number12458911
    Part DescriptionCHAIN KIT, Engine Timing
    Item Dimensions7.2 x 6.3 x 4.4 inches
    Item Weight1.60 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU12458911
    WarrantyThis genuine GM part is guaranteed by GM's factory warranty.
    Shipping & ReturnShipping Policy Return Policy
    Warning: California’s Proposition 65
  • Vehicle Fitment

    Year Make Model Engine Important vehicle option details
    1997-2001 Oldsmobile Bravada6 Cyl 4.3LBRAVADA
  • Customer Questions & Expert Answers

    Q:
    I am wonder if this is complete and correct part for my vehicle. Posted by GMPartsGiant Specialist
    A:
    You can Select Your Vehicle to check if 12458911 fits your vehicle.
    Posted by GMPartsGiant Specialist
    Q:
    How do I remove and install the timing chain cover,Timing Chain and Sprocket on 2.2L four cylinder engine on Chevrolet Blazer,S10,GMC Jimmy and Sonoma? Posted by Customer
    A:
    Begin by removing the cover, then isolate it from the negative battery cable. After that, remove fan shroud upper part, drive belt, fan/clutch assembly, water pump pulley, crankshaft pulley and hub. Remove the drive belt tensioner bracket and Timing Cover-to-engine block bolts next. Utilize a gasket scraper to erase any old gasket material and clean any of the sealing surfaces. To remove the timing chain; temporarily install crankshaft pulley hub and bolt; rotate crankshaft to align timing marks on crankshaft and camshaft sprockets; push back timing chain tensioner plunger and insert pin to retain plunger; using prybar holding engine while removing camshaft bolt; carefully prying camshaft sprocket off. Check for damage or wearout on timing chain and sprockets before replacing if necessary. Mesh new timing chains with camshafts; put them into engagement with crankshafts at their sprocket's teeth; aligning timing marks; installing tightening camshaft sprocket bolt; releasing tensioner; lubricating chain/sprocket; rotating engine to check alignment of timing marks; applying RTV sealant to oil pan sealing surface; finally securing front cover using new rubber seal.
    Posted by GMPartsGiant Specialist
    Q:
    How to remove and install the timing chain cover,Timing Chain and Sprocket on 4.3L V6 engine on Chevrolet Blazer,S10,GMC Jimmy and Sonoma? Posted by Customer
    A:
    Disconnecting the negative battery cable is the first step in removal and installation of the Timing Cover. To remove, you will have to remove upper and lower fan shrouds, drive belt, cooling fan and water pump. The number four piston must be positioned at TDC on the compression stroke, then remove the drive belt pulley and crankshaft damper. If applicable, don't forget to take out the crankshaft position sensor and wiring harness nut. Loosen front oil pan nuts before removing cover bolts when separating Timing Cover from block and breaking gasket seal if necessary. Note that for some engines, the front cover may be made of composite material and should be replaced rather than resealed. Just inside the front cover, pull off crankshaft position sensor reluctor ring which is attached to a camshaft sprocket and chain assembly. For an old gasket material use a gasket scraper to scrape it off; cleaning lacquer thinner or acetone should be wiped over sealing surfaces of engine cover and block; inspecting flange condition of a cover is recommended. Make sure that when installing a Woodruff key line up coincides with both crankshaft sprocket's as well as balance shaft gears'. Use clean engine oil to lubricate the chain; put Loctite on camshaft sprocket bolt threads before installing them tightly or tighten them after installing using Loctite. Apply RTV sealant in U-shaped channel on bottom side of the cover check oil pan-to-block joints; also check whether there are any leaks between housing halves in place where they meet with each other in front of timing chain area that is why you need to apply RTV sealant between them too. Thin layer of RTV sealant should be spread over both sides of new gasket so that it can be positioned on engine block by dowel pins thus holding it firmly in place. Finally install Timing Cover and tighten bolts taking into account whether it is necessary to remove or pry down oil pan for access. Lastly, apply moly-base grease or clean engine oil onto the vibration damper hub's oil seal contact surface, put the damper on the crankshaft, and proceed with other remaining installation steps including using new O-ring for crankshaft position sensor.
    Posted by GMPartsGiant Specialist
    Q:
    Why is it important to loosen the front oil pan nuts before removing the timing chain cover for the 2001 Chevrolet S10? Posted by Customer
    A:
    Loosening the front oil pan nuts allows for easier removal of the timing chain cover.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Timing Chain
    Q:
    What components need to be removed before beginning the removal of the timing chain cover for the 2003 GMC Sonoma? Posted by Customer
    A:
    Before removing the timing chain cover, the following components should be removed: upper and lower fan shrouds, drive belt, cooling fan, water pump, drive belt pulley, crankshaft damper, crankshaft position sensor, and the wiring harness nut if applicable.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Timing Chain
    Q:
    How can the timing chain be removed for the 2002 GMC Sonoma? Posted by Customer
    A:
    Temporarily install the crankshaft pulley hub and bolt, align the timing marks on the crankshaft and camshaft sprockets, push back the timing chain tensioner and insert a pin to retain it, use a prybar to hold the engine while removing the camshaft bolt, and carefully pry off the camshaft sprocket.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Timing Chain
    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 12458911, the Right Choice

To ensure reliability, purchase GM part # 12458911 Chain Kit,Timing (W/Sprockets). It is sometimes referred to as Oldsmobile Timing Chain. Directly from GM, genuine parts are superb with regards to quality, longevity, and fit. Every single part passed stringent quality testing, so you can be sure that it's safe, durable, and built to perform like your original parts. This part fits specific Oldsmobile Bravada models.

GMPartsGiant.com is a leading supplier of genuine GM parts and accessories such as GM 12458911 Chain Kit,Timing (W/Sprockets). You're certainly in the right place if you're searching for the great cost-effective OEM GM parts. Look no further than our vast inventory of genuine GM parts offered at unbeatable online prices, all of which are backed by the manufacturer's warranty. Not to forget, our hassle-free return policy and quick delivery service ensure a smooth shopping experience for you. For detailed Oldsmobile parts information, click here.

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