How to replace the LH secondary camshaft timing chain on Buick LaCrosse?

Start by removing the spark plugs to ease Crankshaft rotation and then take off the engine front cover. Then take out the right bank Timing Chain Tensioner, guide, shoe and chain along with the upper guide and primary camshaft drive chain. Then move to the left bank by removing the left bank Timing Chain, Timing Chain Tensioner, shoe, guide and intermediate drive chain idler. Thoroughly clean all camshaft timing drive components and replace any parts that are damaged or worn out. Before reinstalling the camshaft timing components, install the left bank Timing Chain first, followed by the left bank camshaft intermediate drive chain idler, guide, shoe and tensioner. Next attach the right bank camshaft intermediate drive chain idler, primary camshaft drive chain, upper guide and tensioner. Reattach the right bank Timing Chain, guide, shoe and tensioner, along with both spark plugs and the front cover of the engine.

OEM Buick LaCrosse Timing Chain

Engine Timing Chain

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11 Timing Chains found

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Buick LaCrosse Timing Chain
Part Number: 12646386
$59.35 MSRP: $101.00
You Save: $41.65 (42%)
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Product Specifications
- Other Name: Chain, Engine Timing
- Replaced by: 12646387
- Replaces: 12586482, 88958608, 12552954
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2009 Buick LaCrosse | Super | 8 Cyl 5.3 L GAS
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Buick LaCrosse Timing Chain
Part Number: 12637744
$47.69 MSRP: $81.17
You Save: $33.48 (42%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Chain, Engine Timing; Chain Guide
- Replaces: 12633451, 12616609
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2016, 2006-2008 Buick LaCrosse | Base, Convenience, CX, CXL, CXS, Leather, Premium, Sport Touring, Touring | 6 Cyl 3.0 L GAS, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
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Buick LaCrosse Timing Chain
Part Number: 12637743
$48.71 MSRP: $82.93
You Save: $34.22 (42%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Chain, Engine Timing; Chain Guide; Secondary Chain
- Replaces: 12633452, 12683547, 12616608
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2016, 2006-2008 Buick LaCrosse | Base, Convenience, CX, CXL, CXS, Leather, Premium, Sport Touring, Touring | 6 Cyl 3.0 L GAS, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
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Buick LaCrosse Timing Chain
Part Number: 12627107
$64.67 MSRP: $110.04
You Save: $45.37 (42%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Chain, Engine Timing
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2019 Buick LaCrosse | Base, Essence, Preferred, Premium | 4 Cyl 2.5 L MILD HYBRID EV-GAS (MHEV)
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Buick LaCrosse Chain
Part Number: 12626983
$33.00 MSRP: $54.37
You Save: $21.37 (40%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Chain, Engine Crankshaft And Camshaft Balancer; Balance Shaft Chain; Timing Chain
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2019 Buick LaCrosse | Base, Essence, Preferred, Premium | 4 Cyl 2.5 L MILD HYBRID EV-GAS (MHEV)
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Buick LaCrosse Timing Chain
Part Number: 12597307
$43.83 MSRP: $71.71
You Save: $27.88 (39%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Chain, Engine Timing
- Replaces: 12566651, 12590920
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005 Buick LaCrosse | CXS | 6 Cyl 3.6 L GAS
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Buick LaCrosse Timing Chain
Part Number: 12589011
$67.97 MSRP: $106.47
You Save: $38.50 (37%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Chain, Engine Timing
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005 Buick LaCrosse | CXS | 6 Cyl 3.6 L GAS
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Buick LaCrosse Timing Chain, Green Line
Part Number: 24461834
$125.16 MSRP: $213.08
You Save: $87.92 (42%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Chain, Engine Timing
- Replaces: 90537338
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2016 Buick LaCrosse | Base, Convenience, CX, CXL, Leather, Premium | 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV)
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Buick LaCrosse Timing Chain
Part Number: 12694716
$39.19 MSRP: $61.40
You Save: $22.21 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Chain, Engine Timing; Secondary Chain; Chain; Chain, Engine Oil Pump
- Replaces: 12647896
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2017-2019 Buick LaCrosse | Avenir, Base, Essence, Preferred, Premium, Sport Touring | 6 Cyl 3.6 L GAS
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Buick LaCrosse Timing Chain
Part Number: 12647895
$35.17 MSRP: $84.74
You Save: $49.57 (59%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Chain, Engine Timing
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2017-2019 Buick LaCrosse | Avenir, Base, Essence, Preferred, Premium, Sport Touring | 6 Cyl 3.6 L GAS
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Buick LaCrosse Timing Chain
Part Number: 24504668
Product Specifications
- Other Name: Chain, Engine Timing
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2009 Buick LaCrosse | CX, CXL | 6 Cyl 3.8 L GAS

Buick LaCrosse Timing Chain

Our website offers an extensive catalog of genuine Buick LaCrosse Timing Chain at unbeatable prices. Every OEM Buick LaCrosse Timing Chain comes with a manufacturer's warranty, an easy return policy, and rapid delivery service. Don't miss out on this great opportunity!

Buick LaCrosse Timing Chain Parts Questions & Experts Answers

Timing Chain
12637744
Q: How to replace the LH secondary camshaft timing chain on Buick LaCrosse?
A: Start by removing the Spark Plugs to ease Crankshaft rotation and then take off the engine front cover. Then take out the right bank Timing Chain Tensioner, guide, shoe and chain along with the upper guide and primary camshaft drive chain. Then move to the left bank by removing the left bank Timing Chain, Timing Chain Tensioner, shoe, guide and intermediate drive chain idler. Thoroughly clean all camshaft timing drive components and replace any parts that are damaged or worn out. Before reinstalling the camshaft timing components, install the left bank Timing Chain first, followed by the left bank camshaft intermediate drive chain idler, guide, shoe and tensioner. Next attach the right bank camshaft intermediate drive chain idler, primary camshaft drive chain, upper guide and tensioner. Reattach the right bank Timing Chain, guide, shoe and tensioner, along with both spark plugs and the front cover of the engine.

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