3979746S - Tension roller with cap
High-precision tension roller with cap manufactured as a direct interchange for OEM numbers 3979746S. Engineered for heavy-duty commercial vehicle applications (Volvo Volvo Bus 9/11/12/13 (D/DH engine), Volvo Volvo Bus B 5/6/7/8, Volvo Volvo F/FL 6 (-2000), F/FL/FM 7, FLC, Volvo Volvo FH/FM/FMX/NH 9/10/11/12/13/16), ensuring optimal operational performance and long service life.
Technical Description
What function does this part serve?
The Tension roller with cap (Interchangeable OE: 3979746S) absorbs vibration, minimizes surface wear, and guarantees operational integrity across commercial heavy-duty systems.
System Compatibility
Precision-engineered to match OEM parameters for Volvo Volvo Bus 9/11/12/13 (D/DH engine), Volvo Volvo Bus B 5/6/7/8, Volvo Volvo F/FL 6 (-2000), F/FL/FM 7, FLC, Volvo Volvo FH/FM/FMX/NH 9/10/11/12/13/16 fleets, providing drop-in fitment without requiring mechanical adjustments.
Assembly & Maintenance Guidelines
Ensure mounting surfaces are free of debris prior to installation. Tighten all fasteners according to original vehicle manufacturer torque specifications.
OE Interchangeability
Designed as an exact cross-reference replacement for OEM codes including 3979746S. Reference item catalog ID: KT09440.
Compatible Cross Reference OEM Numbers
Total Brands: 1VOLVO
Compatible Vehicle Applications
This OEM replacement part is suitable for the following commercial vehicle platforms & models:
Frequently Asked Questions
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Turbocharger
OEM: 904 096 0399, 904 096 1299, 904 096 1299 80, 904 096 5399
Turbocharger with gasket kit
OEM: 00 02 841 036, 00 20 994 054, 00 21 326 115, 00 85 013 124, 74 20 994 054, 74 21 326 115, 74 85 013 124
Glow plug
OEM: 5058 011AD, 5080 046AA, 5080 047AA, 5080 047AB, 5117 592AA, 7177 5530, 5962 1Q, 5080 047AA, 5080 047AB, 5117 592AA
Gasket cooling water line
OEM: 3269970149, 3559970049
Gasket intake manifold
OEM: 51089020057, 51089020128, 51089020147, 4011410080, 4421410080, 4421410780
Blocking flap
OEM: 51081506174, 51081506197
Air filter
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Fan cover
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Fan clutch
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