GM 12703921 Crankcase Breather Vent Tube Hose

( Brand: Gm ), ( Manufacturer Part Number: 12703921 ), ( Material: Rubber, Plastic ), ( Performance Part: No ), ( Placement On Vehicle: Engine Compartment ), ( Type: Positive Crankcase Ventilation Foul Air Tube )

Review GM Chevrolet Colorado Crankcase Positive Breather Vent Tube Hose Oem fits 2017–2022

Chevrolet Crankcase Breather Vent Tube Hose (GM Part Number: 12703921)

This Chevrolet Crankcase Breather Vent Tube Hose, manufactured by General Motors (GM), is an essential component of your vehicle's engine system. Designed for use in select 2017 to 2022 Chevrolet models, this hose facilitates the proper flow of crankcase gases from the engine to the intake system.

The vent tube hose is made from high-quality materials, ensuring durability and reliability. It features a reinforced design with a heat-resistant outer layer that protects against engine heat and potential damage. The inner layer is composed of a flexible material that allows for smooth gas flow, preventing any potential blockages or restrictions.

Measuring approximately 12 inches in length, this hose is specifically designed to fit and function optimally within the confines of your Chevrolet engine compartment. Its tapered end connectors ensure a secure connection to the crankcase breather and intake manifold, preventing any leaks or gas loss.

By maintaining the proper flow of crankcase gases, this vent tube hose contributes to improved engine performance and longevity. It helps to reduce harmful emissions and ensure the overall health of your engine.

When it comes time for replacement, trust the original equipment manufacturer (OEM) for a perfect fit and optimal performance. This Chevrolet Crankcase Breather Vent Tube Hose, GM Part Number 12703921, is the ideal choice for your vehicle.

Pros and Cons of Buying a Chevrolet Crankcase Breather Vent Tube Hose (GM Part #12703921)

The Chevrolet crankcase breather vent tube hose (GM Part #12703921) is an essential component of the engine's emissions system. It allows the crankcase gases to escape, preventing harmful pressure build-up and maintaining proper engine performance. Here are the pros and cons of purchasing this part.

1. OEM Quality: This part is a direct replacement manufactured by General Motors, ensuring a perfect fit and function.

2. Improved Engine Performance: A worn-out or damaged crankcase breather vent tube hose can lead to engine performance issues. Replacing it with a new one can improve acceleration, idle quality, and overall performance.

3. Compliance with Emissions Regulations: The crankcase breather vent tube hose plays a crucial role in maintaining the vehicle's emissions system. A faulty hose can cause check engine lights and potential emissions-related fines.

1. Cost: Replacing a single hose may seem like an unnecessary expense for some vehicle owners. However, neglecting this component can lead to more significant and costlier issues down the line.

2. Labor Costs: If you're not confident in your ability to replace the hose yourself, you'll need to pay for professional labor. The cost of labor can vary depending on your location and the shop's rates.

3. Availability: Depending on your location and the availability of the part at the local dealership or auto parts store, you may experience a delay in getting the part and completing the repair.

The Chevrolet crankcase breather vent tube hose (GM Part #12703921) is a crucial component of your vehicle's engine system and emissions control. Although it may seem like an insignificant part, neglecting it can lead to more costly repairs and potential emissions-related fines. Consider the pros and cons and weigh the benefits of investing in a new OEM hose to ensure optimal engine performance and compliance with emissions regulations.

If you're experiencing issues with your vehicle's engine performance, check the crankcase breather vent tube hose as a potential cause. If it's worn out or damaged, it's recommended to replace it with a new OEM hose as soon as possible to prevent further complications and ensure proper engine function. If you're unsure about the installation process, consider having it replaced by a professional mechanic.

Details:

DRIVE TYPE: FOUR WHEEL 4WD. BODY TYPE: CREW CAB PICKUP 4-DOOR. MILEAGE: 92K MILES. TRANSMISSION: 8-SPEED AUTOMATIC LF3.

part #: 12703921 prices

• $41.23-$70.00

specifications airintakesystemse:

• for makes: Chevrolet
• for years: 2017-2022
• brand: Gm
• mpn: 12703921
• material: Rubber, Plastic
• performance part: No
• placement on vehicle: Engine Compartment
• type: Positive Crankcase Ventilation Foul Air Tube

payments airintakesystemse:

• other
• credit card: Discover
• wallet: Apple-pay

returns airintakesystemse:

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

general airintakesystemse:

• Car Truck Parts Accessories > Air Fuel Delivery > Hoses, Lines Pipes
• condition: Used

shipping airintakesystemse:

• cost: $0.00
• service: Standard
• transit: 4-8 Days
• class: Standard
• type: Fixed

offer airintakesystemse:

• best offers: True
• options: Ship-to-home
• sold: 0
• started: November 28, 2025
• quantity: 1
• availability: In Stock

seller airintakesystemse:

• # reviews: 30160
• rating: 99.8%
• city: Kingsley, Michigan

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