Use cautionVehicle recall · NHTSA · Published January 7, 2021
Aprilia Tuono 660 (2021) Engine Recall: Risk of Sudden Stall
Aprilia recalls 2021 Tuono 660 motorcycles with potential connecting rod breakage causing engine stalls and crash risks. Owners must have engine replaced free by dealers.
“Aprilia Tuono 660 (2021) Engine Recall: Risk of Sudden Stall.” GovInfoNow, updated October 4, 2026. https://govinfonow.com/recall/80223-aprilia-tuono-660-2021-engine-recall-risk-of-sudden-stall. Based on NHTSA recall #21V502000 (https://www.nhtsa.gov/recalls?nhtsaId=21V502000).
Aprilia USA, Inc. recalled certain 2021 RS 660 and Tuono 660 motorcycles after a broken connecting rod caused sudden engine stalls, according to the National Highway Traffic Safety Administration (NHTSA) on Jan. 7, 2021. Dealers will replace the engines free of charge.
How to tell if you have it
Aprilia RS 660, 2021
Aprilia Tuono 660, 2021
What to do
Dealers will replace the engine, free of charge. Owners may contact Aprilia customer service at 1-212-380-4400.
The hazard
A broken connecting rod can cause a sudden engine stall, increasing the risk of a crash. The engine crankshaft connecting rod may break due to improper heat-treatment.
Context
GovInfoNow's records show other recent recalls of similar products include Kawasaki Ninja ZX-6R (2024-2026) Recall: Engine Stall Risk (2025-11-18), KTM 390 Adventure R (2025) Recall: Engine Power Loss Risk (2025-12-01), and Honda CBR600RR (2024-2026) Engine Recall: Risk of Crash or Fire (2025-12-18). NHTSA has 3 owner complaints on file for the 2021 APRILIA RS 660, with the latest received 2021-09-01. Manufacturers have sent NHTSA 12 technical service bulletins or other communications covering the 2021 APRILIA RS 660, with the latest dated 2024-09-03.
How to tell if you have this one
Check for 2021 Tuono 660 motorcycles with the engine crankshaft connecting rod. The recall covers specific models sold in the U.S. starting from July 2021.
Brand
Aprilia
Category
Vehicle
Based on the official NHTSA remedy
What to do — step by step
Contact Aprilia Customer Service
Call 1-212-380-4400 to confirm your motorcycle is affected and schedule an engine replacement.
Get Engine Replaced
Dealers will replace the engine at no cost once the recall is confirmed.
Official remedy
What NHTSA says to do
Dealers will replace the engine, free of charge. Owner notification letters were mailed on July 9, 2021. Owners may contact Aprilia customer service at 1-212-380-4400. Aprilia's number for this recall is PA2ZZQ2107.
How this recall unfolded
Recall timeline
Owners were mailed letters 6 months after NHTSA received the defect report.
1NHTSA received the defect report
2Owner letters mailed
Dates from the agency record only; steps without a date are left out.
Take action
Contact Aprilia
We’ve drafted a message you can send Aprilia to request your refund or repair — edit it as you like.
Subject: Recall 21V502000 — Aprilia Tuono 660 (2021) Engine Recall: Risk of Sudden Stall
Hello,
I own a Aprilia Tuono 660 (2021) Engine Recall: Risk of Sudden Stall that is covered by recall 21V502000 from Aprilia.
The official recall notice states: Dealers will replace the engine, free of charge. Owner notification letters were mailed on July 9, 2021. Owners may contact Aprilia customer service at 1-212-380-4400. Aprilia's number for this recall is PA2ZZQ2107.
I’m writing to arrange the remedy described in the recall (a refund, repair, or replacement as applicable). Could you please tell me the next steps to resolve this?
Thank you.
The facts (hazard, remedy, dates, manufacturer) are pulled from the official NHTSA recall record. The plain-language summary and step-by-step checklist are written by GovInfoNow to make the official notice easier to act on — they don’t replace it.
Plain-language summary written by qwen3:4b on October 4, 2026, from the official record above. Not reviewed by a person — if it conflicts with the NHTSA notice, the notice is correct. Report an error on this page.
GovInfoNow is an independent service and is not a government agency. We republish official NHTSA recall data; we don’t issue, amend or administer recalls.