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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 | Repair and Installation Guide

$11.96

SKU: C-B0DW8MXWDG Category:

Review this component in the context of the repair, installation access, nearby parts, and the result the job is intended to achieve.

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

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

Review this item in the context of the repair, installation access, nearby parts, and the result the completed job is intended to achieve.

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

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.

Repair scenarios, installation, companion parts, and use outcomes

Buying guidance

Quick decision

Review this jets in the context of the repair and the surrounding components.

Repair scenario

  • Identify the symptom and confirm that this is the component required by the repair.
  • Inspect nearby connectors, fasteners, and mating surfaces before installation.

Installation notes

  • Use the listing instructions when present and follow the vehicle service procedure.
  • Professional installation may be appropriate when the repair requires special tools or calibration.

Companion parts

  • Inspect nearby fasteners, connectors, seals, fluids, and wear items before starting the repair.
  • Use the service procedure and the visible package contents to identify any additional parts or tools required.

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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