How to remove and reinstall exhaust manifolds on V6 engine on Lexus ES300?

Disconnect the negative cable from the battery. Spray penetrating oil on the exhaust manifold fasteners and allow it to soak in. Remove the heated oxygen sensors from the front and rear manifolds. Remove the EGR pipe from the rear exhaust manifold and cylinder head. Remove the nuts retaining the exhaust pipes to the front and rear exhaust manifolds. Disconnect the electrical connector from the oxygen sensor at each manifold. Unbolt the exhaust manifolds from the cylinder heads and slip them off the mounting studs. Carefully inspect the manifolds and fasteners for cracks and damage. Use a scraper to remove all traces of old gasket material and carbon deposits from the manifolds and cylinder head mating surfaces. If the gasket was leaking, check the manifolds for warpage on the cylinder head mounting surface by placing a straightedge over the surface and trying to insert a feeler gauge. If the clearance exceeds the limit, have the manifold resurfaced at an automotive machine shop. Position new gaskets over the cylinder head studs. Install the manifolds and thread the mounting nuts into place. Working from the center out, tighten the nuts. Reinstall the remaining parts in the reverse order of removal. Use new gaskets when connecting the exhaust pipes. Run the engine and check for exhaust leaks.

Genuine Lexus ES300 Exhaust Manifold

Engine Exhaust Manifold

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15 Exhaust Manifolds found

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Lexus ES300 Exhaust Manifold Converter Sub-Assembly, No.2
Part Number: 25052-20210
$626.72
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Sub-Assy, Exhaust Manifold, No.2; Exhaust Manifold
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2003 Lexus ES300 | 6 Cyl 3.3L | 3MZFE; 3MZFE; MCV31L-BEAGKA
View related parts
Lexus ES300 Exhaust Manifold Converter Sub-Assembly, No.2
Part Number: 25052-20140
$584.29
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Sub-Assy, Exhaust Manifold, No.2
- Manufacturer Note: TYPE A:REFER TO ILLUSTRATION
- Replaced by: 25052-20170
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2002-2003 Lexus ES300 | 6 Cyl 3.0L | 1MZFE; 1MZFE; MCV30L-BEAGKA
View related parts
Lexus ES300 Exhaust Manifold Sub-Assembly, Right
Part Number: 17140-20070
$600.13
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold Sub-Assy, Exhaust, Rh
- Manufacturer Note: TYPE A:REFER TO ILLUSTRATION
- Position: Passenger Side
- Replaced by: 17140-20080
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2002-2003 Lexus ES300 | 6 Cyl 3.0L | 1MZFE; 1MZFE; MCV30L-BEAGKA
View related parts
Lexus ES300 Exhaust Manifold Converter Sub-Assembly, No.2
Part Number: 25052-20020
$340.72
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Sub-Assy, Exhaust Manifold, No.2
- Manufacturer Note: CALIFORNIA SPEC
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 1997-2000 Lexus ES300 | 6 Cyl 3.0L | 1MZFE; 1MZFE; MCV20L-BTPGKA, MCV20L-BTPGKK
View related parts
Lexus ES300 Exhaust Manifold Converter Sub-Assembly, No.2
Part Number: 25052-20160
$584.29
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Sub-Assy, Exhaust Manifold, No.2
- Manufacturer Note: TYPE B:REFER TO ILLUSTRATION
- Replaced by: 25052-20170
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2002-2003 Lexus ES300 | 6 Cyl 3.0L | 1MZFE; 1MZFE; MCV30L-BEAGKA
View related parts
Lexus ES300 Exhaust Manifold Converter Sub-Assembly, No.2
Part Number: 25052-20080
$399.77
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Sub-Assy, Exhaust Manifold, No.2
- Manufacturer Note: MARK 20080
- Replaced by: 25052-20090
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 1999-2001 Lexus ES300 | 6 Cyl 3.0L | 1MZFE; 1MZFE; MCV20L-BTPGKA, MCV20L-BTPGKK
View related parts
Lexus ES300 Exhaust Manifold Sub-Assembly, Right
Part Number: 17104-20030
$240.92 MSRP: $333.95
You Save: $93.03 (28%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold Sub-Assy, Exhaust, Rh; Exhaust Manifold
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2000-2001 Lexus ES300 | 6 Cyl 3.0L | 1MZFE; 1MZFE; MCV20L-BTPGKA, MCV20L-BTPGKK
View related parts
Lexus ES300 Exhaust Manifold Sub-Assembly, Right
Part Number: 17140-20050
$510.30
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold Sub-Assy, Exhaust, Rh; Exhaust Manifold
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2003 Lexus ES300 | 6 Cyl 3.3L | 3MZFE; 3MZFE; MCV31L-BEAGKA
View related parts
Lexus ES300 Exhaust Manifold Sub-Assembly, Right
Part Number: 17104-20010
$240.92 MSRP: $333.95
You Save: $93.03 (28%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold Sub-Assy, Exhaust, Rh; Exhaust Manifold
- Manufacturer Note: CALIFORNIA SPEC
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 1997-2001 Lexus ES300 | 6 Cyl 3.0L | 1MZFE; 1MZFE; MCV20L-BTPGKA, MCV20L-BTPGKK
View related parts
Lexus ES300 Exhaust Manifold Sub-Assembly, Right
Part Number: 17140-20100
$600.13
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold Sub-Assy, Exhaust, Rh
- Manufacturer Note: TYPE B OR TYPE C:REFER TO ILLUSTRATION
- Position: Passenger Side
- Replaced by: 17140-20080
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2002-2003 Lexus ES300 | 6 Cyl 3.0L | 1MZFE; 1MZFE; MCV30L-BEAGKA
View related parts
Lexus ES300 Exhaust Manifold
Part Number: 17141-62050
Product Specifications
- Other Name: Manifold, Exhaust; Manifold
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 1992-1994 Lexus ES300 | 6 Cyl 3.0L | 3VZFE; 3VZFE; VCV10L-BTMGKA, VCV10L-BTMGKK, VCV10L-BTPGKA, VCV10L-BTPGKK
View related parts
Lexus ES300 Exhaust Manifold Case, No.2
Part Number: 17142-62030
Product Specifications
- Other Name: Case, Exhaust Manifold, No.2; Exhaust Manifold, Manifold
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 1992-1994 Lexus ES300 | 6 Cyl 3.0L | 3VZFE; 3VZFE; VCV10L-BTMGKA, VCV10L-BTMGKK, VCV10L-BTPGKA, VCV10L-BTPGKK
View related parts
Lexus ES300 Exhaust Manifold Sub-Assembly, Left
Part Number: 17142-20050
Product Specifications
- Other Name: Manifold Sub-Assy, Exhaust, Lh; Exhaust Manifold
- Manufacturer Note: BRAZIL SPEC & W/O(VVT)
- Position: Driver Side
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 1997-2001 Lexus ES300 | 6 Cyl 3.0L | 1MZFE; 1MZFE; MCV20L-BTPGKA
View related parts
Lexus ES300 Exhaust Manifold Sub-Assembly, Left
Part Number: 17150-20010
Product Specifications
- Other Name: Manifold Sub-Assy, Exhaust, Lh; Exhaust Manifold, Manifold
- Position: Driver Side
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 1993-1999 Lexus ES300 | 6 Cyl 3.0L | 1MZFE; 1MZFE; MCV10L-BTPGKA, MCV10L-BTPGKK, MCV20L-BTPGKA, MCV20L-BTPGKK
View related parts
Lexus ES300 Exhaust Manifold Sub-Assembly, Right
Part Number: 17140-20010
Product Specifications
- Other Name: Manifold Sub-Assy, Exhaust, Rh; Exhaust Manifold, Manifold
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 1993-1999 Lexus ES300 | 6 Cyl 3.0L | 1MZFE; 1MZFE; MCV10L-BTPGKA, MCV10L-BTPGKK, MCV20L-BTPGKA, MCV20L-BTPGKK

Lexus ES300 Exhaust Manifold

Should you need to purchase new auto parts for your vehicle, we strongly suggest you consider the genuine Lexus ES300 Exhaust Manifold available on LexusPartsNow.com. Our OEM Lexus ES300 Exhaust Manifold come with the reassurance of the manufacturer's warranty, a hassle-free return policy, and speedy delivery service, all at affordable prices online. Feel free to shop with confidence!

Lexus ES300 Exhaust Manifold Parts Questions & Experts Answers

Exhaust Manifold Converter Sub-Assembly, No.2
25052-20020
Q: How to remove and reinstall exhaust manifolds on V6 engine on Lexus ES300?
A: Disconnect the negative cable from the battery. Spray penetrating oil on the exhaust manifold fasteners and allow it to soak in. Remove the heated oxygen sensors from the front and rear manifolds. Remove the EGR pipe from the rear exhaust manifold and cylinder head. Remove the nuts retaining the exhaust pipes to the front and rear exhaust manifolds. Disconnect the electrical connector from the oxygen sensor at each manifold. Unbolt the exhaust manifolds from the cylinder heads and slip them off the mounting studs. Carefully inspect the manifolds and fasteners for cracks and damage. Use a scraper to remove all traces of old gasket material and carbon deposits from the manifolds and cylinder head mating surfaces. If the gasket was leaking, check the manifolds for warpage on the cylinder head mounting surface by placing a straightedge over the surface and trying to insert a feeler gauge. If the clearance exceeds the limit, have the manifold resurfaced at an automotive machine shop. Position new gaskets over the cylinder head studs. Install the manifolds and thread the mounting nuts into place. Working from the center out, tighten the nuts. Reinstall the remaining parts in the reverse order of removal. Use new gaskets when connecting the exhaust pipes. Run the engine and check for exhaust leaks.