Holley 20-78 Accelerator Pump Arm 30cc For 2300 4150 4160 Carb
Holley 20-78 Accelerator Pump Arm 30cc For 2300 4150 4160 Carb
HOLLEY

Holley 20-78 Accelerator Pump Arm 30cc For 2300 4150 4160 Carb

Part # 20-78 SKU HLY20-78

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$36.99
In stock, ships from a US warehouse
SKU: HLY20-78
UPC: 090127036433
Width: 3.00 (in)
Height: 4.00 (in)
Depth: 3.00 (in)
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Highlights

Type
Accelerator Pump Arm
Material
Plastic
Intended pump volume
30 cc
Intended carburetor models
2300 / 4150 / 4160
Color
Black
Hardware included
Yes

Description

Holley 20-78 Accelerator Pump Arm 30cc For 2300 4150 4160 Carb

The Holley 20-78 Accelerator Pump Arm is a precision-engineered component designed specifically for Holley carburetors, including the popular 2300, 4150, and 4160 models. As an integral part of the carburetor system, the accelerator pump arm plays a crucial role in delivering an additional fuel supply to the engine during acceleration, ensuring optimal performance and responsiveness. This 30cc capacity arm is constructed from durable materials to withstand the rigors of high-performance applications while providing reliable service over time.

The function of the accelerator pump arm is vital in managing fuel delivery when the throttle is suddenly opened. It works by actuating the accelerator pump mechanism to inject a metered amount of fuel into the carburetor's venturi, richening the air-fuel mixture. This process helps prevent hesitation and stalling, particularly during rapid acceleration, thereby enhancing the overall driving experience. With the Holley 20-78 arm, users can expect improved throttle response and smoother acceleration across various engine loads.

FITMENT: Compatible with Holley 2300, 4150, and 4160 carburetors, the 20-78 accelerator pump arm is engineered for easy installation and optimal performance with these specific models. Ensure compatibility with your system for maximum efficiency and effectiveness.

Key Features & Benefits

  • Constructed from high-quality materials for durability and longevity.
  • 30cc capacity for enhanced fuel delivery during acceleration.
  • Prevents engine hesitation by providing timely fuel injection.
  • Improves throttle response for a more dynamic driving experience.
  • Designed specifically for Holley 2300, 4150, and 4160 carburetors.

Specifications
Identification
BrandHOLLEY
Part number20-78
SKUHLY20-78
UPC090127036433
Dimensions and weight
Dimensions (W × H × D)3.00 × 4.00 × 3.00 in
Material and finish
MaterialPlastic
ColorBlack
FinishNatural
Series and warranty
Details
TypeAccelerator Pump Arm
IncludesAccelerator Pump Arm, Hardware
Intended pump volume30 cc
Intended carburetor models2300 / 4150 / 4160
Hardware includedYes

Shipping and returns

Shipping. Free on every order, US only. Orders arrive in 2–4 days.

Returns. 60-day free returns, except in extreme cases.

Support. Our team is available 24/7 for fitment mismatches or any other reason.

Warranty. Full manufacturer guarantee.

Holley 20-78 Accelerator Pump Arm 30cc For 2300 4150 4160 Carb
Holley 20-78 Accelerator Pump Arm 30cc For 2300 4150 4160 Carb
$36.99
In stock · free shipping

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