Sierra 223-7760 Fuel Filter for Onan Generators, Replaces A026K278 and 149-2106

The Sierra 223-7760 is a replacement fuel filter engineered for Onan generator sets, designed to trap contaminants and debris before they reach the carburetor or fuel system, helping protect generator performance and longevity. It is built with a durable plastic outer housing suited to the demands of onboard generator installations, and it is a direct fit for the Onan model range listed below. As a Sierra product, it is manufactured to meet or exceed the performance of the original equipment part it replaces, and it is backed by Sierra's customer satisfaction warranty covering defects in workmanship and materials for the useful life of the product. Installation follows the same fuel filter replacement procedure used for the original equipment filter it is designed to replace, making it a straightforward maintenance item for routine generator servicing. This filter is intended for owners and technicians maintaining Onan MDKA and MDKB series generators who need a dependable replacement part backed by a trusted marine and generator parts brand.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 223-7760
• Replaces (OEM): A026K278, 149-2106
• Product Type: Fuel Filter
• Outer Material: Plastic
• Unit Count: 1
• Weight: 0.72 pounds
• UPC: 808282289379

Fitment

• Onan MDKAD/E/F
• Onan MDKAU
• Onan MDKAV
• Onan MDKAW (Spacesaver)
• Onan MDKAZ
• Onan MDKBD
• Onan MDKBD (with isolated ground)
• Onan MDKBE
• Onan MDKBE (with isolated ground)
• Onan MDKBF
• Onan MDKBF (with isolated ground)
• Onan MDKBG

Replaces (OEM)

• A026K278
• 149-2106

Frequently Asked Questions

What generator models is the Sierra 223-7760 fuel filter designed for? The Sierra 223-7760 fits Onan MDKAD/E/F, MDKAU, MDKAV, MDKAW (Spacesaver), MDKAZ, MDKBD, MDKBD (with isolated ground), MDKBE, MDKBE (with isolated ground), MDKBF, MDKBF (with isolated ground), and MDKBG generator sets.

Does the 223-7760 replace the Onan A026K278 fuel filter? Yes, the Sierra 223-7760 is a direct replacement for the Onan A026K278 fuel filter.

Is the Sierra 223-7760 the same as part number 149-2106? Yes, part number 149-2106 is one of the OEM numbers that the Sierra 223-7760 fuel filter replaces.

What is the 223-7760 fuel filter made of? It has a plastic outer housing, built to hold up to the operating environment of an Onan generator's fuel system.

How much does the 223-7760 fuel filter weigh? The Sierra 223-7760 fuel filter weighs 0.72 pounds.

How many fuel filters come in one package? One Sierra 223-7760 fuel filter is included per unit purchased.

Is Sierra a genuine or aftermarket brand for generator parts? Sierra is an aftermarket replacement part manufacturer; the 223-7760 is engineered to meet or exceed the performance of the original Onan A026K278 and 149-2106 filters it replaces, not a filter branded by Onan itself.

Is the Sierra 223-7760 covered by a warranty? Yes, the 223-7760 is covered by Sierra's customer satisfaction warranty, which covers defects in workmanship and materials for the useful life of the product.

Can I install the 223-7760 fuel filter myself? The 223-7760 is a direct-fit replacement for the original Onan filter, so it installs using the same fuel filter replacement steps as the OEM part it replaces on compatible Onan generator models.

Will the 223-7760 fit an Onan MDKAW Spacesaver generator? Yes, the Sierra 223-7760 fuel filter is designed to fit the Onan MDKAW (Spacesaver) generator model.

Does the 223-7760 fit generators with an isolated ground option? Yes, it is designed to fit the isolated-ground versions of the Onan MDKBD, MDKBE, and MDKBF generator models, in addition to the standard versions.