Carburetor Repair Kit – Fits Onan P216G, P218G, P220G, P224G Engines (Replaces 146-0657)

Vendor: JLM Marine
Availability: In Stock
Product Type: Carburetor Repair Kit
$24.50
$14.00
$24.50
Subtotal: $24.50

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Carburetor Repair Kit – Fits Onan P216G, P218G, P220G, P224G Engines (Replaces 146 - 0657) - JLM Marine Boat Parts Limited

Carburetor Repair Kit – Fits Onan P216G, P218G, P220G, P224G Engines (Replaces 146-0657)

$14.00 $24.50

Carburetor Repair Kit – Fits Onan P216G, P218G, P220G, P224G Engines (Replaces 146-0657)

$14.00 $24.50

Carburetor Repair Kit – Fits Onan P216G, P218G, P220G, P224G Engines (Replaces 146-0657)

This carburetor repair kit is designed for Nikki carburetors used on Onan P-series engines, including the P216G, P218G, P220G, and P224G models. The kit provides the necessary components to rebuild your carburetor and restore it to optimal function.

This kit is a direct replacement for Onan part numbers 146-0657 and 146-0650.

  • Compatible with a wide range of Onan P-series, B-series, and OL-series engines.
  • Manufactured in an ISO9002-certified facility to meet or exceed OEM specifications.
  • Important: This kit is not compatible with generator set (genset) applications.

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Brand Part Number Notes
Onan 146-0657 Supersedes 146-0650
Onan 146-0650 Superseded by 146-0657

Compatible Engine Models

Confirm your engine model/year in the table below.

Brand Model Rated HP Stroke OEM Part No. Notes
Onan P216G 16 4-Stroke 146-0657 Replaces 146-0650
Onan P218G 18 4-Stroke 146-0657 Replaces 146-0650
Onan P220G 20 4-Stroke 146-0657 Replaces 146-0650
Onan P224G 24 4-Stroke 146-0657 Replaces 146-0650, Spec B-G only
Onan OL16 16 4-Stroke 146-0657 Power generator application
Onan OL18 18 4-Stroke 146-0657 Power generator application
Onan OL20 20 4-Stroke 146-0657 Power generator application
Onan P126G 4-Stroke 146-0657 Power generator application
Onan P128G 4-Stroke 146-0657 Power generator application
Onan B48G-GA020 4-Stroke 146-0657 Industrial engine
Onan B48G-GA19.9 4-Stroke 146-0657 Industrial engine
Onan B48M 4-Stroke 146-0657 Partial compatibility; verify specifications
Miller LX720 4-Stroke 146-0657
Miller LX770 4-Stroke 146-0657
Miller LX790 4-Stroke 146-0657

Compatible Carburetors

This repair kit is specifically designed for the following Nikki carburetor models:

Carburetor Model Notes
146-0414 Nikki carburetor
146-0479 Nikki carburetor
146-0496 Nikki carburetor
146-6100 Nikki carburetor
146-0388 Nikki carburetor
146-0389 Nikki carburetor
146-0412 Nikki carburetor
146-0428 Nikki carburetor
146-0430 Nikki carburetor
146-0478 Nikki carburetor
146-0659 Nikki carburetor
146-0697 Nikki carburetor
146-0698 Nikki carburetor
146-0700 Nikki carburetor

Technical Specifications

Specification Value
Product Type Carburetor Repair Kit
Compatible Carburetors Nikki-branded carburetors (146-0414, 146-0479, 146-0496, 146-6100, and others)
Engine Compatibility P216G, P218G, P220G, P224G, B48G, OL16, OL18, OL20, and select industrial engines
Manufacturing Standard ISO9002 certified factory
Package Type OEM service parts kit
Other Technical Attributes Not compatible with gen-set applications

Package Contents

  • 1 x Mounting Gasket
  • 1 x Air Horn Gasket
  • 4 x Set Screws
  • 1 x Float Valve
  • 1 x Float Pin
  • 1 x Float Assembly
  • 1 x Main Plug Gasket
  • 1 x O-Ring (carb to air cleaner)

Note: The accelerator pump kit, if needed, is sold separately as part number 146-0649/146-0658.

Installation Guide

  1. Safety First: Disconnect the battery and shut off the fuel supply.
  2. Remove Air Cleaner: Take off the air cleaner assembly to access the carburetor.
  3. Detach Carburetor: Carefully disconnect fuel lines and linkages, then remove the carburetor from the engine.
  4. Disassemble: Take apart the carburetor on a clean surface. Pay close attention to the orientation of the old bowl/cover gasket.
  5. Verify Gasket Match: Critically important: Compare your old gasket to the new one. One corner of the gasket in this kit is shaped differently from the other three. If yours does not match, you may need kit 146-0356.
  6. Clean Components: Thoroughly clean all metal parts with carburetor cleaner.
  7. Install New Parts: Carefully install the new components from this kit, including the float, valve, gaskets, and O-ring.
  8. Reassemble: Put the carburetor back together.
  9. Reinstall Carburetor: Mount the rebuilt carburetor onto the engine, reattaching linkages and fuel lines.
  10. Final Steps: Reinstall the air cleaner, reconnect the battery, and restore the fuel supply.
  11. Test and Adjust: Start the engine, check carefully for any fuel leaks, and adjust the idle if necessary.

Troubleshooting & FAQ

Q: How do I confirm this kit fits my carburetor?

A: This kit fits Nikki-branded carburetors only. The most critical step is to visually compare the large bowl/cover gasket with your original part. The gasket in this kit has one corner that is shaped differently from the other three. If the corners of your old gasket are all identical, this kit will not fit, and you should check repair kit 146-0356 instead.

Q: Will this kit work for my Onan generator engine?

A: No, this kit is not intended for generator set (genset) applications. It is designed for the specific P-series, OL-series, and industrial engines listed in the compatibility table.

Q: What is the difference between this kit (146-0657) and kit 146-0437?

A: This kit (146-0657) contains the same float, float valve, and float pin found in kit #146-0437. However, it also includes additional essential items like the main air horn gasket, making it a more comprehensive kit for a full rebuild.

Q: Is the accelerator pump included?

A: No, the accelerator pump and its related components are not included. If your carburetor has an accelerator pump that needs service, that kit is sold separately as part number 146-0649 or 146-0658.

Q: OEM vs. Aftermarket?

A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?

A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?

A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

  • Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
  • This product is an aftermarket replacement part and is not an OEM component.
  • Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

  • Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
  • Fast Global Shipping: Free delivery worldwide in 5–15 days.
  • Direct from Manufacturer: Competitive pricing without compromising quality.

We can ship to virtually any address in the world with free shipping available for most regions.

For our typical US and Canadian customers , our shipping timeframes are as follows:

  • Amazon FBA: orders will be delivered within 1-5 business days after placing the order (during certain special periods such as major promotions, Christmas, etc., the delivery time of Amazon FBA may be affected).
  • US warehouse shipment: orders will be delivered within 5 days after placing the order.
  • China warehouse shipment: orders will be delivered about 12 days after placing the order.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

Founded in 2002, JLM Marine has established itself as a dedicated manufacturer of high-quality marine parts, based in China. Our commitment to excellence in manufacturing has earned us the trust of top marine brands globally.

As a direct supplier, we bypass intermediaries, which allows us to offer competitive prices without compromising on quality. This approach not only supports cost-efficiency but also ensures that our customers receive the best value directly from the source.

We are excited to expand our reach through retail channels, bringing our expertise and commitment to quality directly to boat owners and enthusiasts worldwide.

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