CHEVROLET 1156321 Intake Throttle Body S15 2.5

( Type: Intake Manifold ), ( Manufacturer Part Number: 1156321 )

Review CHEVROLET S15 2.5 Intake Throttle Body fits S10 1987–1991

The Chevrolet 1156321 Intake Throttle Body is a crucial component of the engine air intake system for various S10 and S15 models produced between 1987 and 1991. This part is specifically designed for 2.5L engines, ensuring optimal engine performance and fuel efficiency.

This Intake Throttle Body is meticulously crafted with a durable cast aluminum housing and features a compact design, allowing for easy installation in the engine compartment. The throttle body includes an integrated throttle position sensor, which accurately measures the throttle position and sends this data to the engine control module for precise fuel injection and ignition timing.

The throttle body boasts a unique 4-barrel design, with four separate throttle bores that provide excellent airflow and enhance the engine's power output. Each throttle bore is fitted with a butterfly valve, which opens and closes in response to the driver's accelerator input, controlling the amount of air that enters the engine.

The Intake Throttle Body is equipped with a built-in idle air control valve, which maintains a consistent idle speed under various engine loading conditions. This valve adjusts the amount of air that bypasses the throttle bores during idle, ensuring a stable and smooth engine idle.

Additionally, this component comes with an O-ring gasket, ensuring a leak-free seal between the throttle body and the intake manifold. This gasket makes installation a breeze, as it eliminates the need for additional sealing materials.

The Chevrolet 1156321 Intake Throttle Body is an essential upgrade for any S10 or S15 2.5L engine, delivering improved engine performance, enhanced fuel efficiency, and unmatched reliability. With its durable design, precise sensor technology, and easy installation, this throttle body is an indispensable addition to your vehicle's engine air intake system.

Pros and Cons of Buying a Chevrolet 1156321 1987-1991 S10 S15 2.5L Intake Throttle Body

a. Improved Throttle Response: A new throttle body can enhance the overall driving experience by providing quicker throttle response, making your vehicle more responsive and agile.

b. Better Fuel Economy: A clean and properly functioning throttle body can help improve fuel economy as it ensures smooth idling and efficient combustion.

c. Reduced Emissions: A new throttle body can help reduce harmful emissions by ensuring a proper air-fuel mixture, contributing to better environmental performance.

d. Cost-Effective: Replacing a throttle body is often less expensive than other major engine repairs, making it a cost-effective solution for maintaining your vehicle.

a. Installation Complexity: Installing a throttle body can be a challenging process, especially for those without automotive experience. You may need to remove other components to access the throttle body, requiring patience and precision.

b. Potential for Error: Improper installation or use of incorrect parts can lead to various issues, such as engine misfires, rough idling, or poor performance. Ensuring a proper installation is crucial.

c. Availability of Parts: Depending on the specific make and model of your vehicle, finding a new throttle body may be difficult, requiring you to search extensively or consider alternative options.

d. Cost of Labor: If you do not have the necessary skills to install the throttle body yourself, you may need to pay for professional labor, adding to the overall cost of the replacement.

The decision to buy a Chevrolet 1156321 1987-1991 S10 S15 2.5L intake throttle body depends on several factors, including your automotive experience, the availability and cost of the part, and the potential benefits for your specific vehicle. While the prospect of improved throttle response, better fuel economy, and reduced emissions are attractive, the challenges of installation complexity, potential errors, and labor costs should be considered. Ultimately, if you are confident in your abilities, have access to the correct part, and believe the benefits will outweigh the costs, then replacing the throttle body may be a worthwhile investment for your S10 or S15.

Details:

1987 1991 S10 S15 Chevrolet GMC 2.5 intake with throttle body. The truck only has 109656 miles. In great shape comes with intake manifold gasket. Free Shipping.

part #: 1156321 prices

• $39.99-$199.99

specifications inputmanifolds:

• for models: S10
• for makes: Chevrolet
• for years: 1987-1991
• type: Intake Manifold
• manufacturer part number: 1156321

payments inputmanifolds:

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

general inputmanifolds:

• Car Truck Parts Accessories > Air Fuel Delivery > Intake Manifolds
• condition: Used

returns inputmanifolds:

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

seller inputmanifolds:

• city: Shelby, North Carolina
• # reviews: 124
• rating: 82.4%

shipping inputmanifolds:

• class: Standard
• cost: $0.00
• transit: 4-9 Days
• service: UPS Ground
• type: Fixed
• carrier: UPS

offer inputmanifolds:

• options: Ship-to-home
• quantity: 1
• sold: 0
• started: June 8, 2025
• best offers: True
• availability: In Stock

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