WALKER EXHAUST SX-5W4S Catalytic Converter Air Tube D21 2.4L 3.0L L4 V6

( Brand: Walker Exhaust ), ( Type: Catalytic Converter Air Tube ), ( Placement On Vehicle: Emission Control Air Injection System ), ( Manufacturer Part Number: SX-5W4S ), ( Manufacturer Warranty: Lifetime ), ( Ipn: C422 21-26 ), ( Item Weight: 0.6300 ), ( Compatible Model: D21 ), ( Compatible Year: 1989 1988 1987 1986 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Walker Catalytic Converter Air Tube )

Review WALKER EXHAUST Catalytic Converter Air Tube Nissan D21 2.4l 3.0l L4 V6 Il fits 1986–1989

Introducing the Walker Exhaust SX-5W4S catalytic converter air tube, a crucial component in maintaining the optimal performance of your 1986 to 1989 Nissan D21 with a 2.4L 3.0L L4 V6 engine. This replacement part is specifically designed to fit these models and is an essential upgrade for those seeking improved exhaust system efficiency.

The catalytic converter air tube is responsible for supplying oxygen-rich air to the catalytic converter, which is integral to the converter's ability to reduce harmful emissions. This Walker Exhaust component is engineered with premium materials, ensuring durability and reliability. It is constructed from high-temperature resistant materials, capable of withstanding the extreme heat generated within the exhaust system.

This catalytic converter air tube from Walker Exhaust is an excellent choice for drivers seeking to replace their worn-out or damaged original part. It is designed to provide a perfect fit, ensuring easy installation and minimal vehicle downtime. Replacing a faulty air tube can result in noticeable improvements in engine performance, fuel efficiency, and overall vehicle drivability.

Additionally, this Walker Exhaust component comes with the peace of mind that comes with a reputable brand. Walker Exhaust has been a trusted name in the automotive aftermarket for decades, delivering high-quality replacement parts that meet or exceed OEM specifications. By choosing this Walker Exhaust catalytic converter air tube, you are investing in a proven solution that is sure to meet your performance expectations.

In summary, the Walker Exhaust SX-5W4S catalytic converter air tube is a must-have upgrade for 1986 to 1989 Nissan D21 owners with a 2.4L 3.0L L4 V6 engine. It is designed with durability, reliability, and performance in mind, ensuring a perfect fit and noticeable improvements in exhaust system efficiency. Trust Walker Exhaust for your replacement part needs and enjoy the peace of mind that comes with a reputable brand.

Pros and Cons of Buying a Walker Exhaust SX-5W4S Catalytic Converter Air Tube for 1986-1989 Nissan D21 2.4L 3.0L L4 V6

a. Walker is a well-known and reputable brand in the automotive aftermarket industry, known for producing high-quality exhaust components.

b. The SX-5W4S catalytic converter air tube is designed specifically for the 1986-1989 Nissan D21 2.4L 3.0L L4 V6 engines.

c. This part may help improve the performance and efficiency of the catalytic converter by ensuring adequate air flow.

a. Replacing a catalytic converter or its related components can be a complex and time-consuming process, requiring specialized tools and knowledge.

b. The cost of the Walker SX-5W4S catalytic converter air tube may be more expensive than some aftermarket alternatives.

c. Depending on the condition of the rest of the exhaust system, replacing just the air tube may not be the most cost-effective solution.

The decision to buy a Walker Exhaust SX-5W4S catalytic converter air tube for a 1986-1989 Nissan D21 2.4L 3.0L L4 V6 depends on several factors. If the current air tube is damaged or causing performance issues, and the rest of the exhaust system is in good condition, then replacing it with a high-quality part like the Walker SX-5W4S may be a worthwhile investment. However, if the exhaust system as a whole needs attention, it may be more cost-effective to consider a more comprehensive repair or replacement solution. Ultimately, the choice should be based on a careful assessment of the specific needs and budget of the vehicle owner.

Before making a decision, it is recommended that vehicle owners consult with a professional mechanic or exhaust specialist to assess the condition of their exhaust system and determine if replacing the catalytic converter air tube is the best course of action. They can provide valuable insights and recommendations based on their expertise and experience. Additionally, it may be worthwhile to compare prices and features of various catalytic converter air tubes from reputable brands to ensure getting the best value for the investment.

part # sx5w4s price

• $71.69

specifications catalyticonvo:

• for makes: Nissan
• for years: 1986-1989
• brand: Walker Exhaust
• type: Catalytic Converter Air Tube
• placement on vehicle: Emission Control Air Injection System
• manufacturer part number: SX-5W4S
• manufacturer warranty: Lifetime
• interchange part number: C422 21-26
• item weight: 0.6300
• compatible model: D21
• compatible year: 1989 1988 1987 1986
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Walker Catalytic Converter Air Tube

shipping catalyticonvo:

• transit: 3-7 Days
• class: Standard, Expedited
• type: Fixed
• cost: $0.00
• service: Standard, Expedited

general catalyticonvo:

• Car Truck Parts Accessories > Exhaust Emission Systems > Catalytic Converters
• condition: New

offer catalyticonvo:

• quantity: 3
• availability: In Stock
• started: April 27, 2026
• sold: 0
• options: Ship-to-home

seller catalyticonvo:

• # reviews: 650118
• rating: 99.6%

returns catalyticonvo:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

payments catalyticonvo:

• wallet: Paypal
• other
• credit card: Mastercard

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