Is this fuel filter designed to be installed with or without thread sealant?

Not sure? I used some when I installed mine...

The connections on either end, are they 1/8 male pipe and 1/4 inch hose barb?

The hose barb is 1/4 inch. I can't remember the size of the other end.

Will fit an onan 2.8 microlite rv qg 2800 fa 26100g kvfa?

Many are compatible....but not sure? Amazon will take returns...😀

will it fit 149-2620(5500 marquis)

I think so. Found on YouTube a fuel pump getting replaced on a 5500 Marquis. You could clearly see that number on the old one.

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Genuine Cummins Onan Fuel Filter 149-2457 | Genuine Onan Green Label

Product ID: 10926727

Details

Brand
Cummins
Item Weight
13.61 g
Outer Material
Plastic
Product Grade
Replacement
Vehicle Service Type
RV

⛽Optimized fuel filtration

🚐RV-specific fit

🇺🇸Made in USA precision

₩64018

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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TrustScore 4.5 | 7,300+ reviews

₩64018

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Korea.

Secure transaction

Description

⛽ Filter smarter, drive farther — don’t let fuel impurities slow your adventure!

TAILORED FOR YOUR RV - Perfectly compatible with Camp Power/QG and Microlite RV QG models for seamless installation.
LIGHTWEIGHT YET DURABLE - At just 13.6 grams, it offers robust filtration without adding bulk.
HIGHLY RATED BY RV ENTHUSIASTS - Join over a thousand satisfied customers who rate it 4.8/5 for dependable performance.
BOOST YOUR ENGINES LONGEVITY - Keeps your fuel system clean, ensuring peak performance and fewer breakdowns on the road.
PRECISION ENGINEERED IN THE USA - Trust the quality and reliability of a 100% American-made fuel filter.

The Cummins 1492457 Onan Fuel Filter is a lightweight, durable replacement part designed specifically for RV fuel systems like Camp Power/QG and Microlite RV QG. Made in the USA, it ensures optimal fuel filtration to protect your engine and enhance performance, backed by a strong 4.8-star customer rating.

Specifications

ASIN	B004RCQTIY
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	#25,399 in Automotive ( See Top 100 in Automotive ) #130 in Automotive Replacement Fuel Filters
Brand Name	Cummins
Compatible with Vehicle Type	RV
Customer Reviews	4.8 4.8 out of 5 stars (1,199)
Global Trade Identification Number	00690781000414
Item Weight	13.61 g
Manufacturer	Cummins
Manufacturer Part Number	149-2457
Model Number	149-2457
OEM Equivalent Part Number	149-2457
Outer Material	Plastic
Product Grade	Replacement Part
Style Name	Music
UPC	690781000414

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