Belt Tensioner 21454379 23669027 Replaces for Volvo D13 Engine Truck FH FH (4)
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Product Overview
The tensioner keeps the drive belt loaded against the pulleys as the system operates. Bearing noise, wobble, weak spring force, or uneven belt wear can indicate a worn tensioner or pulley.
Replacement references include 21454379 and 23669027. Match the part number, pulley diameter, width, mounting point, offset, and tensioner arm design with your original part.
Key Features & Performance
- Maintains proper drive-belt tension
- Helps reduce slipping and uneven belt wear
- Restores smooth pulley operation
- Designed for compatible engine accessory drives
Fitment & Compatibility
Compatible with select Volvo D13 Engine Truck FH FH (4) applications. Serial-number breaks, production changes, or equipment options may affect the required part.
Technical Specifications
- Product Type: Belt Tensioner Replaces
- Compatible Brand: Volvo
- Part Number(s): 21454379, 23669027
Frequently Asked Questions
Q: Should the belt be replaced with the tensioner? A: Inspect the belt and all idler pulleys at the same time. Replace any component showing cracks, glazing, noise, looseness, or wear.
Q: Is this an original OEM part? A: No. This is a quality aftermarket replacement designed for compatible applications.
Confirm the original part number and physical configuration before ordering, especially when multiple versions were used.