Genuine Aprilia RS 125 RX SX 125 Tuono 125 2017-2024 Cylinder Head Gasket | OEM 1A007851
CHF 33.00
CHF 38.00
-13%
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Genuine Aprilia RS 125 RX SX 125 Tuono 125 2017-2024 Cylinder Head Gasket | OEM 1A007851
CHF 33.00
CHF 38.00
-13%
Taxes included.
Shipping calculated at checkout.
Codice: 1A007851
Pickup available at Moon Bike S.r.l.
Usually ready in 1 hour
The Aprilia 1A007851 cylinder head gasket is the original OEM Piaggio Group spare part for the 125 4T 4V M545M single-cylinder engine fitted on Aprilia RS 125, RS 125 Replica/GP Replica, RX 125, SX 125, and Tuono 125 from 2017 to 2024, in both Euro 4 and Euro 5 versions. It is the gasket that seals the mating surface between the cylinder head and the cylinder, ensuring a perfect seal for the combustion chamber and the oil and coolant circuits.
✓ Strengths
- 100% original Aprilia / Piaggio spare part – same component fitted at the factory
- OEM code 1A007851 – perfect interchangeability and zero fitment risks
- Broad compatibility – RS 125, RS 125 Replica, RX 125, SX 125, Tuono 125 (E4 / E5) from 2017 to 2024
- Reference engine: 125 cc 4T 4V single-cylinder M545M
- Guaranteed seal between head and cylinder for combustion gases, oil, and coolant
- Mandatory replacement component every time the cylinder head is removed
Technical specifications
| Brand | Aprilia (Piaggio Group) |
| OEM code | 1A007851 |
| Equivalent code | AP3CLA000637 |
| Type | Cylinder head gasket |
| Reference engine | Piaggio / Aprilia 125 4T 4V M545M |
| Displacement | 125 cc |
| Cooling | Liquid |
| Spare part type | Original Aprilia (OEM) |
| Quantity per engine | 1 piece |
⚠️ Important notes:
• The cylinder head gasket is a single-use component: it must always be replaced with a new one every time the cylinder head is removed.
• For reassembly, it is mandatory to follow the diagram and torque settings indicated in the Aprilia workshop manual, using new or verified head bolts.
• It is recommended to simultaneously replace the cylinder base gasket, head O-ring, valve stem seals, and coolant.
• The procedure must be carried out by a qualified mechanic: incorrect tightening can cause leaks, overheating, and engine damage.
• Verify the engine code and model using the VIN before purchasing.
• The cylinder head gasket is a single-use component: it must always be replaced with a new one every time the cylinder head is removed.
• For reassembly, it is mandatory to follow the diagram and torque settings indicated in the Aprilia workshop manual, using new or verified head bolts.
• It is recommended to simultaneously replace the cylinder base gasket, head O-ring, valve stem seals, and coolant.
• The procedure must be carried out by a qualified mechanic: incorrect tightening can cause leaks, overheating, and engine damage.
• Verify the engine code and model using the VIN before purchasing.
Vehicle compatibility
| Family | Model / Version | Years |
|---|---|---|
| RS 125 | RS 125 4T E4 ABS (EMEA) | 2017 – 2018 |
| RS 125 Replica 4T E4 ABS (EMEA / APAC) | 2017 – 2019 | |
| RS 125 4T E5 ABS (EMEA) | 2021 – 2023 | |
| RS 125 GP Replica 4T E5 ABS (EMEA / APAC) | 2021 – 2023 | |
| RX 125 | RX 125 E4 (EMEA / APAC) | 2018 – 2020 |
| RX 125 E5 (EMEA / APAC) | 2021 – 2024 | |
| SX 125 | SX 125 E4 (EMEA / APAC) | 2018 – 2020 |
| SX 125 E5 (EMEA / APAC) | 2021 – 2024 | |
| Tuono 125 | Tuono 125 4T E4 ABS (EMEA / APAC) | 2017 – 2020 |
| Tuono 125 4T E5 ABS (EMEA) | 2021 – 2024 |
Recommended related spare parts
- OEM cylinder base gasket – to be replaced along with the head gasket
- Valve stem seals and tappets / shims – to be checked with the head removed
- Cylinder head bolts – check condition and elongation, replace if out of tolerance
- OEM cylinder piston kit – recommended for high-mileage engines
- Specific Piaggio coolant – to be refilled after the procedure
- Eni i-Ride Moto engine oil specific for Aprilia – to be replaced after any engine opening
Who it's perfect for
This gasket is designed for authorized workshops, specialized Aprilia/Piaggio mechanics, and enthusiasts who need to work on the cylinder head of a 125 4V from the Aprilia range (RS, RX, SX, Tuono). It is the mandatory choice for those who want to perform a perfectly executed engine service, replace the gasket in case of leakage/overheating, or complete a full engine overhaul with original and traceable spare parts.
🛡️ Guarantee and quality – Moon Bike S.r.l.
Moon Bike S.r.l. is an official Piaggio Group dealer (Piaggio, Vespa, Aprilia, Gilera, Moto Guzzi) based in Cercola (NA). The 1A007851 cylinder head gasket is supplied as original Aprilia, with full OEM traceability and covered by the manufacturer's official warranty. We ship throughout Italy and abroad with professional packaging for delicate engine parts.
Moon Bike S.r.l. is an official Piaggio Group dealer (Piaggio, Vespa, Aprilia, Gilera, Moto Guzzi) based in Cercola (NA). The 1A007851 cylinder head gasket is supplied as original Aprilia, with full OEM traceability and covered by the manufacturer's official warranty. We ship throughout Italy and abroad with professional packaging for delicate engine parts.
Domande frequenti
Tempi di spedizione +
Spedizione in 24-48h lavorative in Italia. Tracking via SMS/email. Ritiro gratuito presso la nostra sede di Cercola (NA) disponibile in 1 ora.
Reso e rimborso +
Hai 14 giorni dal ricevimento per restituire l'articolo senza dover fornire motivazioni. Reso gratuito per articoli difettosi. Tutti i dettagli
Metodi di pagamento +
Carte di credito (Visa, Mastercard, American Express), PayPal, Apple Pay, Google Pay, Shop Pay, Klarna (rateizza in 3), bonifico bancario e contrassegno alla consegna.
Garanzia e originalità +
Tutti i prodotti hanno garanzia legale di 24 mesi. Siamo Rivenditore Ufficiale Piaggio Group: i ricambi originali sono certificati con codice OEM verificabile.
Assistenza tecnica +
Il nostro team tecnico è disponibile via WhatsApp +39 392 456 1248 Lun-Ven 9:00–13:30 / 14:30–18:00, oppure via email.