VolvoEngine Parts

21051052 Torsion Arm — Volvo FH12 FH16

This reaction rod is a critical component of the vehicle's suspension system, designed to absorb and control rotational forces from the axle. It ensures proper alignment and stability by connecting the axle housing to the frame, maintaining vehicle control under load and during maneuvers. A worn rod will exhibit excessive play, leading to imprecise steering and audible clunks over bumps.

Torsion Arm – Part No 21051052 – Volvo Spare Part
Part Specifications
BrandVolvo
CategoryEngine Parts
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO

Compatible Models

Always verify with serial number before ordering.

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Installation & Application Notes

Cross-reference part number with serial number before ordering to confirm fitment. Keep original parts until new ones are confirmed correct. Record part numbers replaced for future reference.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeReaction Rod
MaterialForged steel
ApplicationRear axle suspension
Service LifeInspect annually, replace as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of a failing reaction rod include a noticeable looseness in the rear axle during acceleration or braking, often accompanied by a dull clunking sound. If ignored, this looseness can progress to affect tire wear and vehicle tracking, potentially leading to unpredictable handling during cornering.

Installation Tip

Ensure the suspension is at normal ride height before torquing fasteners to prevent premature bushing wear. Avoid reusing old mounting hardware, as it may be stretched or fatigued.

Service Note

Inspect the U-bolts, spring seats, and shock absorbers for any signs of damage or wear when replacing the reaction rod.