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PRODUCT OVERVIEW
Brand new air conditioning / fan drive belt suitable for selected BMW 5 Series 520i and 525i E12 and E34 6-cylinder 2.0L and 2.5L models (approx. 1977–1990). This belt is designed to deliver reliable power transmission for the A/C compressor and related drive components.
Reference part numbers: 13A0825, ZPN-11688.
KEY FEATURES
- High transmission efficiency for belt-driven accessories
- Minimal slip and stretch for consistent performance
- Resistant to oil, heat and typical engine bay contaminants
- Fibre-reinforced construction for added strength and durability
- Smooth, quiet and low-vibration operation
FITMENT INFORMATION
This is a vehicle-specific air conditioning drive belt. It is intended for BMW 5 Series 520i and 525i E12 and E34 6-cylinder 2.0L and 2.5L applications around model years 1977–1990. Always confirm part numbers, engine details and belt size against your existing belt or a trusted parts catalog before purchase and installation.
BENEFITS
- Restores correct operation of the air conditioning drive system
- Helps prevent belt noise, slip and premature wear
- Engineered for long service life under demanding conditions
INSTALLATION NOTES
- Have the belt installed by a qualified technician where possible
- Inspect pulleys and tensioner for wear or damage before fitting
- Set and check belt tension to manufacturer specifications
Vehicle Compatibility
| Make | Model | Series | Years | Badge | Engine Details | Position |
| BMW | 520i | E12 | 1977-1978 | 6 cyl M20B20 2.0L 1990cc | Air Cond | |
| BMW | 525i | E34 | 9/1988-10/1990 | incl.: Executive | 6 cyl M20B25 2.5L 2494cc | Air Cond |
| Make | Model | Series | Years | Badge | Engine Details | Position |
| BMW | 520i | E12 | 1977-1978 | 6 cyl M20B20 2.0L 1990cc | Air Cond | |
| BMW | 525i | E34 | 9/1988-10/1990 | incl.: Executive | 6 cyl M20B25 2.5L 2494cc | Air Cond |
| Make | Model | Year | Submodel | Variant | Engine | Notes |
|---|---|---|---|---|---|---|
| BMW | 5 Series | 1990 | E34 Sedan 525 i | RWD Petrol 2.5L 6cyl 125kW M20 B25 (256K1) | 2494cc 125kW (Petrol) | E34;6 cyl Petrol M20B25 2.5L;RWD Sedan;Air Cond |
| BMW | 5 Series | 1990 | E34 Sedan 525 i 24V | RWD Petrol 2.5L 6cyl 141kW M50 B25 (256S1),M50 B25 (256S2) | 2494cc 141kW (Petrol) | E34;6 cyl Petrol M20B25 2.5L;RWD Sedan;Air Cond |
| BMW | 5 Series | 1989 | E34 Sedan 525 i | RWD Petrol 2.5L 6cyl 125kW M20 B25 (256K1) | 2494cc 125kW (Petrol) | E34;6 cyl Petrol M20B25 2.5L;RWD Sedan;Air Cond |
| BMW | 5 Series | 1988 | E34 Sedan 525 i | RWD Petrol 2.5L 6cyl 125kW M20 B25 (256K1) | 2494cc 125kW (Petrol) | E34;6 cyl Petrol M20B25 2.5L;RWD Sedan;Air Cond |