How to replace the catalytic converter on an A4WD on Chevrolet Astro?

The replacement of a Catalytic Converter on an a4wd vehicle requires protective goggles and gloves to safeguard against rust and sharp edges with a cool exhaust system before the installation process begins. Start the process by raising the vehicle and suspend the Catalytic Converter assembly. Start by disconnecting the 3 Oxygen Sensor electrical connections and removing the clips followed by breaking the Muffler flange bolts and the Exhaust Manifold studs on both right and left sides while disconnecting the collars. Remove the hanger assembly attached to the Catalytic Converter from both the Transfer Case and the Catalytic Converter before disassembling it from the Muffler and exhaust manifolds with caution toward the oxygen sensors' protection. Wrap the Catalytic Converter assembly by lowering its rear section to move it in the direction of the vehicle's rear then rotate it down behind the Transfer Case support crossmember before unclipping the oxygen sensors from their ports. Check that all exhaust system components match oem specifications for safe operation then verify alignment before tightening bolts or nuts. To make a proper connection between the Exhaust Pipe and Exhaust Manifold always replace damaged hangers brackets and clamps while using new nuts post-thread cleaning. Place the oxygen sensors at their designated spots on the Catalytic Converter assembly before raising and rotating the assembly to fit it correctly with the left Exhaust Pipe between the Torsion Bar and transmission. Attach the Catalytic Converter assembly to the Muffler assembly by installing a gasket and keeping the nuts on both sides loosely attached to Exhaust Manifold studs. Follow a sequence to tighten the Exhaust Manifold nuts at 53 nm (39 ft. Lbs.) and the hanger-to-Transfer Case bolts at 55 nm (41 ft. Lbs.) while torquing the assembly-to-muffler assembly nuts to 40 nm (30 ft. Lbs.). After restoring the Oxygen Sensor electrical connectors and removing the Catalytic Converter assembly support you should lower the vehicle.

OEM Chevrolet Astro Catalytic Converter

Cat. Converter

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18 Catalytic Converters found

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Chevrolet Astro Catalytic Converter Part Number: 25056846
$484.65 MSRP: $715.08
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Product Specifications
- Other Name: Converter; Converter, Catalytic Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985-1987 Chevrolet Astro | Base, CL, CS | 4 Cyl 2.5 L GAS
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Chevrolet Astro Catalytic Converter Part Number: 15744810
Product Specifications
- Other Name: Converter, Exhaust Pipe; Front Pipe; Converter, Catalytic Converter; Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2005 Chevrolet Astro | Base, LS, LT | 6 Cyl 4.3 L GAS
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Chevrolet Astro Catalytic Converter Part Number: 25129951
Product Specifications
- Other Name: Converter, Catalytic Converter; Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1993 Chevrolet Astro | Base, CL, CS, LT | 6 Cyl 4.3 L GAS
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Chevrolet Astro Catalytic Converter Part Number: 25129193
Product Specifications
- Other Name: Converter, Catalytic Converter; Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992 Chevrolet Astro | Base, CL, CS, LT | 6 Cyl 4.3 L GAS
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Chevrolet Astro Catalytic Converter Part Number: 25127428
Product Specifications
- Other Name: Converter; Converter, Catalytic Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1990-1991 Chevrolet Astro | Base, CL, CS, LT | 6 Cyl 4.3 L GAS
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Chevrolet Astro Catalytic Converter Part Number: 25104273
Product Specifications
- Other Name: Converter, Catalytic Converter; Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-1991 Chevrolet Astro | Base, CL, CS, LT | 6 Cyl 4.3 L GAS
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Chevrolet Astro 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:
- 1985 Chevrolet Astro | Base, CL, CS | 6 Cyl 4.3 L GAS
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Chevrolet Astro Catalytic Converter Part Number: 15749445
Product Specifications
- Other Name: Converter, Exhaust Pipe; Front Pipe; Converter, Catalytic Converter; Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001 Chevrolet Astro | Base, LS, LT | 6 Cyl 4.3 L GAS
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Chevrolet Astro Catalytic Converter Part Number: 15737420
Product Specifications
- Other Name: Converter, Exhaust Pipe; Front Pipe; Converter; Exhaust Pipe
- Replaces: 15729344
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-1997 Chevrolet Astro | Base, LS, LT | 6 Cyl 4.3 L GAS
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Chevrolet Astro Catalytic Converter Part Number: 15708268
Product Specifications
- Other Name: Converter, Exhaust Pipe; Front Pipe; Converter; Converter, Catalytic Converter; Exhaust Pipe
- Replaces: 15979053
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1995 Chevrolet Astro | Base, CL, CS, LT | 6 Cyl 4.3 L GAS
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Chevrolet Astro Catalytic Converter Part Number: 15682632
Product Specifications
- Other Name: Converter, Catalytic Converter; Exhaust Pipe; Front Pipe; Converter; Converter, Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1995 Chevrolet Astro | Base, CL, CS, LT | 6 Cyl 4.3 L GAS
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Chevrolet Astro Converter Part Number: 15668434
Product Specifications
- Other Name: Catalytic Converter; Converter, Catalytic Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1993 Chevrolet Astro | Base, CL, CS, LT | 6 Cyl 4.3 L GAS
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Chevrolet Astro Catalytic Converter Part Number: 15157827
Product Specifications
- Other Name: Converter, Exhaust Pipe; Front Pipe; Converter, Catalytic Converter; Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000 Chevrolet Astro | Base, LS, LT | 6 Cyl 4.3 L GAS
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Chevrolet Astro Catalytic Converter Part Number: 15157825
Product Specifications
- Other Name: Converter, Exhaust Pipe; Front Pipe; Converter, Catalytic Converter; Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000 Chevrolet Astro | Base, LS, LT | 6 Cyl 4.3 L GAS
View related parts
Chevrolet Astro Catalytic Converter Part Number: 15153681
Product Specifications
- Other Name: Converter, Exhaust Pipe; Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1998-1999 Chevrolet Astro | Base, LS, LT | 6 Cyl 4.3 L GAS
View related parts
Chevrolet Astro Catalytic Converter Part Number: 15153680
Product Specifications
- Other Name: Converter, Exhaust Pipe; Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1998-1999 Chevrolet Astro | Base, LS, LT | 6 Cyl 4.3 L GAS
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Chevrolet Astro Converter Part Number: 15153679
Product Specifications
- Other Name: Converter, Exhaust Pipe; Catalytic Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1998-1999 Chevrolet Astro | Base, LS, LT | 6 Cyl 4.3 L GAS
View related parts
Chevrolet Astro Converter Part Number: 15153678
Product Specifications
- Other Name: Converter, Exhaust Pipe; Catalytic Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1998-1999 Chevrolet Astro | Base, LS, LT | 6 Cyl 4.3 L GAS

Chevrolet Astro Catalytic Converter

Want to cut long-term maintenance and repair costs? Choose OEM Catalytic Converter. Those parts deliver top durability you can trust. On our site, you'll find a huge catalog of genuine Chevrolet Astro parts. Prices are unbeatable, so you can keep more in your pocket. Every OEM Chevrolet Astro Catalytic Converter 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.

The Catalytic Converter used in Chevrolet Astro automobiles functions in the exhaust system, its primary purpose is to decrease dangerous emissions in the fumes resulting from burning of fuel. Through chemical reaction, it neutralizes noxious gases like Carbon Monoxide (CO), Hydrocarbons (HC), and Oxides of Nitrogen (NOx) into water and carbon dioxide (CO2) in the presence of commercial catalyst which are platinum, palladium, and rhodium. Throughout the years, the Chevrolet Astro models have integrated various types of the Catalytic Converter such as two way and three way. The initial two-way converters were designed to oxidize CO and HC, the later three-way converters were aimed in reduction of NOx as well. High flow performance catalytic converters are also possible to help improve the capabilities of the engine without violating the emissions rules. These converters come as direct fit or universal and while the former are easier to install, converters of this kind are excellent choices.

Chevrolet Astro Catalytic Converter Parts Questions & Experts Answers

Catalytic Converter
15744810
Q: How to replace the catalytic converter on an A4WD on Chevrolet Astro?
A:
The replacement of a Catalytic Converter on an a4wd vehicle requires protective goggles and gloves to safeguard against rust and sharp edges with a cool exhaust system before the installation process begins. Start the process by raising the vehicle and suspend the Catalytic Converter assembly. Start by disconnecting the 3 Oxygen Sensor electrical connections and removing the clips followed by breaking the Muffler flange bolts and the Exhaust Manifold studs on both right and left sides while disconnecting the collars. Remove the hanger assembly attached to the Catalytic Converter from both the Transfer Case and the Catalytic Converter before disassembling it from the Muffler and exhaust manifolds with caution toward the oxygen sensors' protection. Wrap the Catalytic Converter assembly by lowering its rear section to move it in the direction of the vehicle's rear then rotate it down behind the Transfer Case support crossmember before unclipping the oxygen sensors from their ports. Check that all exhaust system components match oem specifications for safe operation then verify alignment before tightening bolts or nuts. To make a proper connection between the Exhaust Pipe and Exhaust Manifold always replace damaged hangers brackets and clamps while using new nuts post-thread cleaning. Place the oxygen sensors at their designated spots on the Catalytic Converter assembly before raising and rotating the assembly to fit it correctly with the left Exhaust Pipe between the Torsion Bar and transmission. Attach the Catalytic Converter assembly to the Muffler assembly by installing a gasket and keeping the nuts on both sides loosely attached to Exhaust Manifold studs. Follow a sequence to tighten the Exhaust Manifold nuts at 53 nm (39 ft. Lbs.) and the hanger-to-Transfer Case bolts at 55 nm (41 ft. Lbs.) while torquing the assembly-to-muffler assembly nuts to 40 nm (30 ft. Lbs.). After restoring the Oxygen Sensor electrical connectors and removing the Catalytic Converter assembly support you should lower the vehicle.