Shelley Fabares died of pneumonia, her family has confirmed.

The “Coach” alum’s family confirmed her cause of death to People Thursday. She was previously diagnosed with autoimmune hepatitis and in 2000 received a liver transplant.

Fabares was 82 years old.

Shelley Fabares died of pneumonia, her family confirmed Thursday. She is seen here in 1990. Disney General Entertainment Content via Getty Images

The actress (pictured here in February 2004) died Saturday. She was 82 years old. Getty Images

The actress died Saturday after a brief illness, her family confirmed Sunday.

She is survived by her husband of over four decades, “M*A*S*H” alum Mike Farrell, and two stepchildren.

“To her family and friends, Shelley was a source of love, strength, laughter and comfort,” her family wrote in a statement to People, describing her as a “devoted wife” and “loyal friend whose warmth, generosity, humor and grace made an enduring difference in the lives of everyone who knew her.”

Fabares was known for playing Mary Stone in “The Donna Reed Show” from 1958 to 1965. Getty Images

She later played Christine Armstrong on “Coach” from 1989 to 1997. She’s seen here with co-star Craig T. Nelson in September 1993. Disney General Entertainment Content via Getty Images

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“She had a remarkable ability to make people feel welcomed, valued and cared for,” the statement continued. “For millions, Shelley was a beloved actress whose work became part of the fabric of American television and film.”

Fabares was known for playing Mary Stone in “The Donna Reed Show” from 1958 to 1965. She also starred opposite Elvis Presley in several feature films, including the 1965 movie “Girl Happy,” the 1966 movie “Spinout” and the 1967 flick “Clambake.”

Additionally, she released her chart-topping hit “Johnny Angel” in 1962.

Fabares (pictured above in July 1995) received two Emmy nominations for her role on “Coach.” Disney General Entertainment Content via Getty Images

She is survived by her husband, actor Mike Farrell. They’re seen here in August 1991. Getty Images

She later played Christine Armstrong on “Coach” from 1989 to 1997, for which she received two Emmy nominations.

Her last project was voicing Martha Kent in the 2006 animated project “Superman: Brainiac Attacks.”

Fabares was previously married to music and film producer Lou Adler, but they split in 1966 after two years of marriage.