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N228 UN2 Replacement Main Adjusting Needle Assembly 131-66 / ZENITH Adjustable Main Jet fits carburetor 14275 14475 power valve adjuster A57 | Options and Comparison Guide

$11.96

SKU: E-B0DW8MXWDG Category:

Comparison view: Compare N228 UN2 Replacement Main Adjusting Needle Assembly 131-66 / ZENITH Adjustable Main Jet fits carburetor 14275 14475 power valve adjuster A57 with other Jets options using this source-backed discriminator: Referenced part number: 131-66.14275A.

Use this second point to evaluate the tradeoff: Application note: These only work on the aftermarket carburetor, it will not fit anything else. Use a comparison lens: material, dimensions, compatibility, package scope, and upgrade tradeoffs.

Before you order
  • Confirm the part number, position, dimensions, and connector details shown on this page.
  • Compare the listing with the part currently installed on your vehicle.

Description

Comparison points and tradeoffs

When comparing N228 UN2 Replacement Main Adjusting Needle Assembly 131-66 / ZENITH Adjustable Main Jet fits carburetor 14275 14475 power valve adjuster A57 with other Jets options, use this source-backed detail as the primary discriminator: Referenced part number: 131-66.14275A.

Use this second fact to evaluate the tradeoff: Application note: These only work on the aftermarket carburetor, it will not fit anything else. A third point to compare across alternatives is: Product identity: N228 UN2 Replacement Main Adjusting Needle Assembly 131-66 / ZENITH Adjustable Main Jet fits carburetor 14275 14475 power valve adjuster A57.

Alternative-selection boundary

Choose an alternative when its stated identifiers, application, package, or specifications better match the requirement; no unverified competitor claim is introduced here.

Complete source-backed product details

Newly made parts, finely tuned Rochester B/BC (1V) Carburetor.The carburetor in the picture is for reference only. This list only sells Main Adjustment Needle Assembly

Source product highlights

About this item

  • Main jet adjusting needle for the N258 (UN2) carburetor. These only work on the aftermarket carburetor, it will not fit anything else. These do not need to be changed during a standard rebuild.The carburetor in the picture is for reference only. This list only sells Main Adjustment Needle Assembly
  • Part Number: 131-66.14275A 14275B 14275C 14275D 14275E 14275F 14275G, 14475A 14475B 14475C 14475D 14475E 14475F 14475G
  • For Rochester B/BC (1V) Carburetor.Zenith 228 (28 ) series carburetor numbers:14275,14475
  • Specific parts are only suitable for installation on the carburetor shown in the second picture

Product facts

Specifications

Canonical product
MP-US-B0DW8MXWDG
Source product ID
B0DW8MXWDG
Category
Replacement Parts / Fuel System / Carburetors & Parts / Jets
Available images
2
Referenced part numbers
131-66.14275A

Vehicle information

Available fitment details

Listing compatibility notes

  • These only work on the aftermarket carburetor, it will not fit anything else.

Fitment data is provided as a buying aid. Verify the listing against your vehicle and existing part before ordering.

Selection, alternatives, tradeoffs, upgrades, and direct replacements

Buying guidance

Quick decision

Use the supplied facts to compare this jets with direct replacements and nearby alternatives.

Choose this if

  • The listed specifications and referenced numbers match the part you need.
  • The package contents cover the repair without missing required components.

Consider another option if

  • Your vehicle, connector, side, dimensions, or part number do not match the listing.
  • You need a different package quantity, material, or variation.

Before you buy

  • Verify the referenced part number: 131-66.14275A.
  • Compare the listing title, photos, package contents, and specifications with the part being replaced.
  • Confirm vehicle compatibility and installation requirements before ordering.

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