DAY89955

Name: FleetoneWD
Address: 1000 Northbrook Drive, Suite 100, Trevose, 19053, PA
Telephone: 2157855175

Belt Tensioner (D11/D13)

4.5 Ratings

Feature	Specification
Part number	Dayco 89955 accessory drive belt tensioner assembly
Application	Volvo D11/D13 (and related Volvo truck engines) serpentine accessory drive
Belt type	Serpentine / multi‑rib
Number of pulleys	1
Pulley type	Flat pulley for multi‑rib belt
Housing material	Heavy‑duty cast aluminum tensioner body
Spring design	Flat‑spring, automatic tensioning

Includes

Complete automatic belt tensioner assembly (pre‑assembled body and pulley).
Pre‑installed flat pulley with bearing, ready for installation on the engine bracket.

Designed to maintain proper belt tension on Volvo D11/D13 engine accessory systems (alternator, A/C, etc.), reducing slip, noise, and premature belt wear.
Flat‑spring design and cast aluminum housing provide stable tension with high durability under heavy‑duty diesel operating conditions.
Direct bolt‑on replacement for the corresponding Volvo/Mack OEM tensioner numbers listed below, with OE‑equivalent fit and function.

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