How to replace the right side exhaust manifold (RPO LY7) on Buick LaCrosse?

The right side Exhaust Manifold replacement process (RPO LY7) requires air inlet duct and master cylinder fluid level sensor removal so that you can lower the powertrain adequately. You must start by taking off the engine mount struts followed by lifting the vehicle to its maximum height. The procedure requires a long extension to release the Catalytic Converter for access to the exhaust crossover pipe nuts. Deal with the exhaust crossover pipe by removing both right bank Exhaust Manifold nuts and Exhaust Manifold bolts before removing the Exhaust Manifold which requires discarding the gasket. The first step to install a new Exhaust Manifold requires users to remove the heat shield bolts, separate the heat shield before cleaning both sealing surfaces. To install the heat shield position it above the Exhaust Manifold before screwing bolts down to 10 n.m (89 lb in). The bolt passes through the Exhaust Manifold hole before you place a new gasket and correctly position the manifold next to the Cylinder Head until the bolt reaches a proper tension. Screw in all remaining Exhaust Manifold bolts until they achieve 20 n.m (15 lb ft) of torque while crossover exhaust pipe nuts require a torque setting of 34 n.m (25 lb ft). First reconnect the Catalytic Converter before you link the intermediate Steering Shaft to the steering gear then lower the vehicle and lastly replace the engine mount struts master cylinder fluid level sensor and air inlet duct.

OEM Buick LaCrosse Exhaust Manifold

Engine Exhaust Manifold

Select Vehicle by Model
Select Vehicle by VIN

Select Vehicle by Model

Make

Model

Year

Select Vehicle by VIN

For the most accurate results, select vehicle by your VIN (Vehicle Identification Number).

11 Exhaust Manifolds found

View related parts
Buick LaCrosse Exhaust Manifold Part Number: 12643496
$180.09 MSRP: $306.60
You Save: $126.51 (42%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold
- Replaces: 12615133, 12630741
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2016 Buick LaCrosse | Base, Convenience, CX, CXL, Leather | 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV)
View related parts
Buick LaCrosse Exhaust Manifold Part Number: 12656531
$110.29 MSRP: $172.76
You Save: $62.47 (37%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2019 Buick LaCrosse | Essence, Preferred, Premium
View related parts
Buick LaCrosse Exhaust Manifold Part Number: 12608747
$57.76 MSRP: $90.48
You Save: $32.72 (37%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2011 Buick LaCrosse | CX, CXL, CXS | 4 Cyl 2.4 L GAS, 6 Cyl 3.6 L GAS
View related parts
Buick LaCrosse Exhaust Manifold, Passenger Side Part Number: 12580260
$71.53 MSRP: $112.05
You Save: $40.52 (37%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2009 Buick LaCrosse | CX, CXL | 6 Cyl 3.8 L GAS
View related parts
Buick LaCrosse Exhaust Manifold, Passenger Side Part Number: 12569054
$189.01 MSRP: $297.41
You Save: $108.40 (37%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold; Manifold
- Position: Passenger Side
- 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
View related parts
Buick LaCrosse Exhaust Manifold, Driver Side Part Number: 12569053
$202.41 MSRP: $318.47
You Save: $116.06 (37%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold; Manifold
- Position: Driver Side
- 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
View related parts
Buick LaCrosse Exhaust Manifold, Driver Side Part Number: 12588004
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold; Manifold
- Position: Driver Side
- 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
View related parts
Buick LaCrosse Exhaust Manifold, Passenger Side Part Number: 12575855
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold
- Position: Passenger Side
- 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
View related parts
Buick LaCrosse Exhaust Manifold, Passenger Side Part Number: 12576864
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold; Manifold
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2006 Buick LaCrosse | CX, CXL | 6 Cyl 3.8 L GAS
View related parts
Buick LaCrosse Exhaust Manifold, Passenger Side Part Number: 12571075
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold; Manifold
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2008 Buick LaCrosse | CXS | 6 Cyl 3.6 L GAS
View related parts
Buick LaCrosse Exhaust Manifold, Driver Side Part Number: 12571074
$166.64 MSRP: $262.19
You Save: $95.55 (37%)
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold; Manifold
- Position: Driver Side
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2008 Buick LaCrosse | CXS | 6 Cyl 3.6 L GAS

Buick LaCrosse Exhaust Manifold

Want to cut long-term maintenance and repair costs? Choose OEM Exhaust Manifold. Those parts deliver top durability you can trust. On our site, you'll find a huge catalog of genuine Buick LaCrosse parts. Prices are unbeatable, so you can keep more in your pocket. Every OEM Buick LaCrosse Exhaust Manifold includes a manufacturer's warranty. You can also get an easy return policy that keeps buying risk free. Fast delivery, get your car on the road quickly. It's simple to search, compare, and order. Stop guessing about quality or fit. Order today and save with parts that last.

Exhaust manifold is crucial part of the car contributing to the overall reliability of the car including Buick LaCrosse. As one of the key components of the vehicle engine, the Exhaust Manifold is primarily responsible for the process of directing hot exhaust gases from the engine in a smooth, seamless manner towards the emission system while at the same time preventing gases that are lethal to the occupants of the vehicle from getting into the car's interior. This constituent works with diverse models of Buick LaCrosse, starting with the first generation and up to the second one; it tends to be made of heavy materials, such as cast iron or stainless steel, to withstand high temperature for quite a long time. The Buick LaCrosse Exhaust Manifold as a performancebsp;part optimizes the engine's performance by avoiding what is known as intake reversion while providing proper airflow that is important for performance as well as safety. For instance, utilization of dynamic back pressure which is an innovation in the manner in which manifolds are designed further puts Buick LaCrosse out of the common lot in markets. In the same example, elements such as ceramic finishes can add more to heat control, boosting the manifold. Recognized as a dependable part of the car's engine, Buick LaCrosse Exhaust Manifold promotes the performance of the vehicle while reducing the probabilities of the exhaust leaks, which increases safety of the ride. To sum up, the case of Buick LaCrosse Exhaust Manifold is one more proof of the company's ability to create high-quality and high-performance vehicles, which makes the discussed brand part of the car lineup outstanding.

Buick LaCrosse Exhaust Manifold Parts Questions & Experts Answers

Exhaust Manifold, Passenger Side
12580260
Q: How to replace the right side exhaust manifold (RPO LY7) on Buick LaCrosse?
A:
The right side Exhaust Manifold replacement process (RPO LY7) requires air inlet duct and master cylinder fluid level sensor removal so that you can lower the powertrain adequately. You must start by taking off the engine mount struts followed by lifting the vehicle to its maximum height. The procedure requires a long extension to release the Catalytic Converter for access to the exhaust crossover pipe nuts. Deal with the exhaust crossover pipe by removing both right bank Exhaust Manifold nuts and Exhaust Manifold bolts before removing the Exhaust Manifold which requires discarding the gasket. The first step to install a new Exhaust Manifold requires users to remove the heat shield bolts, separate the heat shield before cleaning both sealing surfaces. To install the heat shield position it above the Exhaust Manifold before screwing bolts down to 10 n.m (89 lb in). The bolt passes through the Exhaust Manifold hole before you place a new gasket and correctly position the manifold next to the Cylinder Head until the bolt reaches a proper tension. Screw in all remaining Exhaust Manifold bolts until they achieve 20 n.m (15 lb ft) of torque while crossover exhaust pipe nuts require a torque setting of 34 n.m (25 lb ft). First reconnect the Catalytic Converter before you link the intermediate Steering Shaft to the steering gear then lower the vehicle and lastly replace the engine mount struts master cylinder fluid level sensor and air inlet duct.