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Bitzer 4NFCY Bus AC Compressor – Executive Brief: 647 cc Rebuilt Core for 8–10 m Coaches & Buses | 12 V/24 V R134a
- Praevisio
- Producta Commendata
- Demand-proven: Among the highest-volume bus compressor cores in global aftermarket circulation.
- Displacement-matched: 647 cm³ across 4 cylinders – the standard fit for 8–10 m coaches and buses.
- Cost profile: 40–60% savings versus new OEM units with a documented rebuild trail.
- Supply security: 3–7 business day dispatch from stock-held cores in Xiangtan, China.
- Sede centrale: n. 28, Jili West Road, Zona di sviluppo economico di Jiuhua, città di Xiangtan, provincia dell’Hunan, Cina
- WhatsApp / WeChat: +86-18670382782 | Telephonum fixum: +86-0731-82034997 / 82034998
- E-Mail: [email protected]
- Websites: www.weilipart.com | www.weiliautomotive.com | www.cooliparts.co m
Summarium Exsecutivum
The Bitzer 4NFCY is one of the most widely fitted bus AC compressors in commercial fleets, and the aftermarket never has enough of them. Hunan Weili supplies rebuilt 4NFCY cores that restore OEM performance – 647 cm³ swept volume, 56.2 m³/h at 1450 rpm – at 40–60% below new-OEM pricing, backed by an IATF 16949 quality system and a 100% tested dispatch policy.
Remanufactured Bitzer 4NFCY – 647 cc 4-Cylinder Core
At a Glance: Why Procurement Teams Specify 4NFCY
Specimina Technica
Formam |
Bitzer 4NFCY (KV6-647 / 4-NFC) |
Cylindrus volumen |
647 cm³ |
Displacement (1450 rpm) |
56,2 m³/h |
Displacement (3000 rpm) |
116,4 m³/h |
Cylindri × diametrum × cursus |
4 × 70 mm × 42 mm |
Intervallo velocitatum permissum |
500 – 3500 1/min |
Pondus (sine embreagio) |
33.0 KG |
Clutch magneticus 12 V / 24 V |
LA16 (Optio, 10 kg) |
V-Cinguli |
2 × SPB |
Pressio maxima (BP / AP) |
19 / 28 bar |
Oleum (R134a / R22) |
BSE 55 (Opt.) / B5.2 (Std.) |
Impensio olei |
2.5 dm³ |
Controlle capacitatis |
100–50 % (optio) |
In officina nostra remanufacturandi
Cost-Benefit: Rebuilt vs New
A new OEM 4NFCY typically carries a 2–3x premium over a professionally rebuilt core. The trade is trust in the rebuild – which is exactly what our audited process delivers: full disassembly, ultrasonic cleaning, new piston rings/bearings/seals/gaskets, CNC restoration, dynamic balancing, 100% helium leak test and a performance bench test on every unit. No samples, no shortcuts.
Clean-Line Assembly
100% Quality Control – Testing & Balancing
Bitzer 4NFCY – Frequently Asked Questions
Q: What vehicles use the 4NFCY? A: 8–10 m coaches, city buses and mid-size trucks with belt-driven AC systems.
Q: Is the 647 cm³ displacement correct? A: Yes – 4 cylinders x 70 mm bore x 42 mm stroke = 647 cm³.
Q: Do you supply the LA16 clutch? A: Yes, in 12V or 24V DC as an option.
Q: Can it replace a 4PFCY installation? A: Fitment depends on mounting and drive – confirm with our engineers before ordering.
Q: Lead time? A: 3–7 business days for standard models.
Contactus & Ordinatio
Hunan Weili Auto Parts Appliance Co., Ltd
