How to replace the catalytic converter on 4.8L and 5.3L engines on Chevrolet Blazer?

In order to change the Catalytic Converter on engines 4.8l and 5.3l, first lift and fix the vehicle, and hook the transmission with an appropriate transmission jack. Remove the transmission mount to transmission support nuts, lift the transmission off the support, and the remove the transmission support crossmember bots and nuts prior to removing the crossmember itself. Next, unclip the engine harness and oxygen sensor pigtail, slacken the cpa retainers, and remove the oxygen sensor electrical connectors. Unclip these connectors from the hose clip and transmission crossmember and remove the left and right exhaust manifold pipe nuts, the exhaust muffler nuts, and the Catalytic Converter lastly. If replacing the Catalytic Converter, apply anti-seize compound gm p/n 12377953, or equivalent, to the threads of the old oxygen sensors and reinstall them, tightening to 42 nm (31 ft. Lbs.). Replace the old Catalytic Converter with a new one and fit new exhaust manifold pipe seals, then tighten the right and left exhaust manifold nuts sixareally then tighten them to 50 nm (39 ft. Lbs.). Introduce the exhaust muffler nuts then tighten them up to 40 nm (30 ft. Lbs.). Reconnect the electrical connectors of oem o2 sensor & cpa retainers, attach the connectors to the hose clip & transmission crossmember & install the clip of engine harness & o2 sensor pigtail. Replace the transmission support cross member and tighten the bolts to 95 nm (70 ft. Lbs.), lower the transmission to the support and install the transmission mount to transmission support nuts tightening both to 40 nm (30 ft. Lbs.). Lastly, take off the transmission jack and lower the vehicle.

OEM Chevrolet Blazer Catalytic Converter

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24 Catalytic Converters found

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Chevrolet Blazer Catalytic Converter
Part Number: 55516909
$453.56 MSRP: $681.03
You Save: $227.47 (34%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Converter, Catalytic Converter; Converter & Pipe
- Replaces: 55511596
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2024 Chevrolet Blazer | LT, Premier, RS | 4 Cyl 2.0 L GAS
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Chevrolet Blazer Catalytic Converter
Part Number: 55516911
$1200.60 MSRP: $1790.09
You Save: $589.49 (33%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter, Catalytic Converter; Converter & Pipe
- Replaces: 55508201, 55512009
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2020 Chevrolet Blazer | LT | 4 Cyl 2.0 L GAS
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Chevrolet Blazer Catalytic Converter
Part Number: 12676948
$983.54 MSRP: $1464.18
You Save: $480.64 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter, Catalytic Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2019-2021 Chevrolet Blazer | Base, L, LT | 4 Cyl 2.5 L GAS
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Chevrolet Blazer Catalytic Converter, Passenger Side
Part Number: 85132441
$194.14 MSRP: $277.63
You Save: $83.49 (31%)
ADD TO CART
Product Specifications
- Other Name: Converter, Catalytic Converter; Converter & Pipe
- Position: Passenger Side
- Replaces: 85132439
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2019-2024 Chevrolet Blazer | Base, LT, Premier, RS | 6 Cyl 3.6 L GAS
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Chevrolet Blazer Catalytic Converter, Driver Side
Part Number: 85132438
$205.45 MSRP: $294.55
You Save: $89.10 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter, Catalytic Converter; Exhaust Pipe; Converter & Pipe
- Position: Driver Side
- Replaced by: 85132440
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2019-2024 Chevrolet Blazer | Base, LT, Premier, RS | 6 Cyl 3.6 L GAS
View related parts
Chevrolet Blazer Catalytic Converter
Part Number: 25101899
Product Specifications
- Other Name: Converter, Catalytic Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1987 Chevrolet Blazer | Custom Deluxe, Silverado | 8 Cyl 5.0 L GAS
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Chevrolet Blazer Front Pipe
Part Number: 15744826
Product Specifications
- Other Name: Pipe Assembly-Exhaust Manifold *Marked Print; Exhaust Pipe; Pipe, Catalytic Converter; Pipe, Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2005 Chevrolet Blazer | Base, LS, LT, Trailblazer, Xtreme, ZR2 | 6 Cyl 4.3 L GAS
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Chevrolet Blazer Catalytic Converter
Part Number: 25056778
Product Specifications
- Other Name: Converter, Catalytic Converter; Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1987-1989 Chevrolet Blazer | Custom Deluxe, Scottsdale, Silverado | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
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Chevrolet Blazer Catalytic Converter
Part Number: 25146545
Product Specifications
- Other Name: Converter, Catalytic Converter; Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1995 Chevrolet Blazer | Base | 6 Cyl 4.3 L GAS
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Chevrolet Blazer Catalytic Converter
Part Number: 88968527
Product Specifications
- Other Name: Converter, Catalytic Converter; Converter
- Replaces: 25131438, 25130001, 25130005, 25143420
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1990-1994 Chevrolet Blazer | Base, Cheyenne, Scottsdale, Silverado, Silverado Sport | 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
View related parts
Chevrolet Blazer Front Pipe
Part Number: 15744823
Product Specifications
- Other Name: Pipe Assembly-Exhaust Manifold *Marked Print; Exhaust Pipe; Pipe, Catalytic Converter; Pipe, Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2005 Chevrolet Blazer | Base, LS, LT, Trailblazer, Xtreme, ZR2 | 6 Cyl 4.3 L GAS
View related parts
Chevrolet Blazer Front Pipe
Part Number: 15744828
Product Specifications
- Other Name: Pipe Assembly-Exhaust Manifold *Marked Print; Catalytic Converter; Exhaust Pipe; Converter & Pipe; Pipe, Catalytic Converter; Pipe, Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2005 Chevrolet Blazer | Base, LS, LT, Trailblazer, ZR2 | 6 Cyl 4.3 L GAS
View related parts
Chevrolet Blazer Front Pipe
Part Number: 15744827
Product Specifications
- Other Name: Pipe Assembly-Exhaust Manifold *Marked Print; Exhaust Pipe; Pipe, Catalytic Converter; Pipe, Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2005 Chevrolet Blazer | Base, LS, LT, Xtreme, ZR2 | 6 Cyl 4.3 L GAS
View related parts
Chevrolet Blazer Front Pipe
Part Number: 15156891
Product Specifications
- Other Name: Pipe Assembly-Exhaust Manifold *Marked Print; Exhaust Pipe; Pipe, Catalytic Converter; Pipe, Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000 Chevrolet Blazer | LS, LT | 6 Cyl 4.3 L GAS
View related parts
Chevrolet Blazer Catalytic Converter
Part Number: 25314445
Product Specifications
- Other Name: Converter, Catalytic Converter; Converter
- Replaces: 25152880
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-1999 Chevrolet Blazer | Base, LS, LT, Trailblazer | 6 Cyl 4.3 L GAS
View related parts
Chevrolet Blazer Front Pipe
Part Number: 15006096
Product Specifications
- Other Name: Pipe Assembly-Exhaust Manifold *Marked Print; Exhaust Pipe; Pipe, Catalytic Converter; Pipe, Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000 Chevrolet Blazer | LS, LT, Trailblazer | 6 Cyl 4.3 L GAS
View related parts
Chevrolet Blazer Catalytic Converter
Part Number: 25160211
Product Specifications
- Other Name: Converter, Catalytic Converter; Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1995 Chevrolet Blazer | Base, LT | 6 Cyl 4.3 L GAS
View related parts
Chevrolet Blazer Converter
Part Number: 25160212
Product Specifications
- Other Name: Converter, Catalytic Converter; Catalytic Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1995 Chevrolet Blazer | Base, LT | 6 Cyl 4.3 L GAS
View related parts
Chevrolet Blazer Converter
Part Number: 25146769
Product Specifications
- Other Name: Converter Assembly-3Way Catalytic (W/Exhaust Manifold P; Catalytic Converter; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994 Chevrolet Blazer | Base, Silverado, Silverado Sport | 8 Cyl 5.7 L GAS
View related parts
Chevrolet Blazer Converter
Part Number: 25146311
Product Specifications
- Other Name: Converter, Catalytic Converter; Catalytic Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1993 Chevrolet Blazer | Cheyenne, Silverado | 8 Cyl 5.7 L GAS

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Chevrolet Blazer Catalytic Converter

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

Chevrolet Blazer Catalytic Converter Parts Questions & Experts Answers

Front Pipe
15744826
Q: How to replace the catalytic converter on 4.8L and 5.3L engines on Chevrolet Blazer?
A: In order to change the Catalytic Converter on engines 4.8l and 5.3l, first lift and fix the vehicle, and hook the transmission with an appropriate transmission jack. Remove the transmission mount to transmission support nuts, lift the transmission off the support, and the remove the transmission support crossmember bots and nuts prior to removing the crossmember itself. Next, unclip the engine harness and oxygen sensor pigtail, slacken the cpa retainers, and remove the oxygen sensor electrical connectors. Unclip these connectors from the hose clip and transmission crossmember and remove the left and right exhaust manifold pipe nuts, the exhaust muffler nuts, and the Catalytic Converter lastly. If replacing the Catalytic Converter, apply anti-seize compound gm p/n 12377953, or equivalent, to the threads of the old oxygen sensors and reinstall them, tightening to 42 nm (31 ft. Lbs.). Replace the old Catalytic Converter with a new one and fit new exhaust manifold pipe seals, then tighten the right and left exhaust manifold nuts sixareally then tighten them to 50 nm (39 ft. Lbs.). Introduce the exhaust muffler nuts then tighten them up to 40 nm (30 ft. Lbs.). Reconnect the electrical connectors of oem o2 sensor & cpa retainers, attach the connectors to the hose clip & transmission crossmember & install the clip of engine harness & o2 sensor pigtail. Replace the transmission support cross member and tighten the bolts to 95 nm (70 ft. Lbs.), lower the transmission to the support and install the transmission mount to transmission support nuts tightening both to 40 nm (30 ft. Lbs.). Lastly, take off the transmission jack and lower the vehicle.