RIDEX PLUS 305P0014P Power Steering Auxiliary Belt – Non Air Con
Replacement RIDEX PLUS power-steering auxiliary belt for Mazda MX-5 Mk1/NA, Mk2/NB and Mk2.5/NB-FL models without air conditioning listed in the compatibility table.
The auxiliary belt transfers rotation from the crankshaft pulley to the hydraulic power-steering pump. This allows the pump to circulate power-steering fluid and provide steering assistance while the engine is running.
This is a four-rib, one-sided EPDM belt measuring 855 mm long. One belt is required for the applicable power-steering drive position and one belt is supplied.
Important: This belt is intended for vehicles without air conditioning. Models fitted with air conditioning use a longer belt that drives both the power-steering pump and air-conditioning compressor.
Common reasons for replacement include cracking between the ribs, frayed edges, glazing, stretching, contamination, belt squeal, intermittent steering assistance or visible deterioration during routine servicing.
- Part type: Auxiliary drive belt / multi-rib belt
- Primary use: Drives the hydraulic power-steering pump from the crankshaft pulley
- Vehicle specification: For models without air conditioning
- Location: Front accessory-drive system of the engine
- Length: 855 mm
- Number of ribs: 4
- Width: Approximately 14.2 mm
- Thickness: 4.45 mm
- Belt profile: 4PK855
- Belt construction: One-sided
- Belt material: EPDM rubber
- Surface material: Polyester fabric
- Tensile-cord material: Polyester
- Colour: Black
- Approximate weight: 0.066 kg
- EAN: 4066423603873
- Quantity per vehicle: 1 for the applicable power-steering drive position
- Quantity supplied: 1 auxiliary belt
- Brand: RIDEX PLUS
- Part No.: 305P0014P
- Designed as a premium aftermarket replacement for the applications listed in the compatibility table
Fitment advice: This belt is intended for Mazda MX-5 Mk1/NA, Mk2/NB and Mk2.5/NB-FL models using the non-air-conditioning power-steering belt arrangement. Vehicles fitted with air conditioning require a different, longer belt. Accessory-drive specification can vary where engines, power-steering pumps or pulleys have previously been changed. Match the Mazda reference, four-rib profile and original belt length before installation.
Other items to consider: When changing this part, you may also want to consider purchasing the separate alternator and water-pump belt, power-steering adjustment hardware, crankshaft pulley and any worn or corroded belt-adjustment fixings.
Useful tools / consumables: Socket and spanner set, extension bars, torque wrench, belt-tension gauge where available, inspection lamp, belt-routing reference and suitable protective gloves.
Difficulty guide: DIY Difficulty: Easy to Moderate. Replacement requires loosening the power-steering pump adjustment mechanism, routing the new belt correctly and setting the belt tension without overtightening it.
Why RIDEX PLUS? RIDEX PLUS components are developed as an enhanced aftermarket range, combining application-specific fitment with upgraded product construction and quality control. They provide a cost-effective premium replacement option for routine servicing, repair and vehicle refurbishment.
What’s in the box: One RIDEX PLUS 855 mm four-rib power-steering auxiliary belt. The separate alternator and water-pump belt, pulleys and adjustment hardware are not included.
Installation notes: Allow the engine to cool and note the existing belt-routing path before removal. Loosen the power-steering pump pivot, locking and adjustment fixings and release the belt tension gradually. Remove the old belt and inspect the crankshaft and power-steering pulleys for damaged grooves, corrosion, misalignment or rough bearings. Route the replacement belt correctly and ensure that all four ribs sit fully within the pulley grooves. Adjust the tension according to the applicable vehicle specification; excessive tension can damage the pump bearings, while insufficient tension can cause slipping, squealing and intermittent steering assistance. Tighten all adjustment and mounting fixings correctly, rotate the engine manually where appropriate and recheck belt seating and tension. Start the engine and confirm that the belt tracks centrally without abnormal noise, vibration or movement towards the edge of either pulley.
| Make | Model | Sub Variant | Chassis / Code | Years | Power (PS) | Engine Codes | Fuel | Transmission | Notes |
|---|---|---|---|---|---|---|---|---|---|
| Mazda | MX-5 Mk1 / NA | 1.6 early | NA6C | 1990–1993 | 115 | B6 / B6-ZE | Petrol | Manual / automatic where factory-fitted | Power-steering belt; non-air-con models only |
| Mazda | MX-5 Mk1 / NA | 1.6 late | NA6C | 1994–1998 | 90 | B6-series | Petrol | Manual / automatic where factory-fitted | Power-steering belt; non-air-con models only |
| Mazda | MX-5 Mk1 / NA | 1.8 | NA8C | 1994–1998 | 130–131 | BP / BP-ZE / BPF1 | Petrol | Manual / automatic where factory-fitted | Power-steering belt; non-air-con models only |
| Mazda | MX-5 Mk2 / NB | 1.6 | NB6C | 1998–2002 | 110 | B6 / B6-ZE / B6MC | Petrol | Manual / automatic where factory-fitted | Power-steering belt; non-air-con models only |
| Mazda | MX-5 Mk2 / NB | 1.8 | NB8C | 1998–2002 | 140 | BP-4W / BP-ZE | Petrol | Manual / automatic where factory-fitted | Power-steering belt; non-air-con models only |
| Mazda | MX-5 Mk2.5 / NB-FL | 1.6 | NB6C | 2002–2005 | 110 | B6 / B6-ZE / B6MC | Petrol | Manual / automatic where factory-fitted | Power-steering belt; non-air-con models only |
| Mazda | MX-5 Mk2.5 / NB-FL | 1.8 VVT | NB8C | 2002–2005 | 146 | BP-6D / BP-ZE | Petrol | Manual / automatic where factory-fitted | Power-steering belt; non-air-con models only |
| Vehicle Manufacturer | OEM Reference Number |
|---|---|
| Mazda | B61P-15-907A |
| Mazda | B61P-15-907B |
| Mazda | BP4W-15-907A |
| Mazda | BP4W-15-907B |