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Supplementary article/info 2	requires special tools for mounting
For manufacturer number	f-570870.xx
Svhc	no svhc present!

Product number: 535 0247 10

Ina Overrunning Alternator Clutch Pulley For Mazda 2 3 6 Cx-3 Cx-30 Cx-5 Cx-9

In stock

Shipping method	Delivery time	Stock
Shipping	19-8-2025	3

Price excl. vat.

£ 35,03

Add to cart

Description

INA Belt Drive Technology

Overrunning Alternator Pulley (OAP)

The INA OAP uses a one-way clutch so the alternator can “free-wheel” during sudden belt deceleration. This calms belt vibration, reduces noise at shut-down/gear changes, and protects the tensioner and belt for longer life.

Lower NVH Stabilised FEAD OE-grade reliability

INA Overrunning Alternator Pulley main view

What It Does

One-way clutch: allows the alternator rotor to coast when the belt slows suddenly (overrun), reducing belt snap and chirp.
Smoother accessory drive: helps the tensioner work within its normal range and limits oscillation.
Longer component life: less stress on belt, tensioner, alternator bearings, and other FEAD parts.

When to Replace

Chirping at engine shut-down or during shifts; rumble/squeal from alternator area.
Tensioner arm “flutters” or sits off-center at idle; belt tracking issues.
Alternator charging faults due to belt slip or pulley clutch seizure.
Excessive play/roughness when the pulley is checked off-vehicle.

Important: Fit the same type the vehicle was built with. Don’t swap an OAP for an OAD (decoupler) or a solid pulley — they are not interchangeable.

How to Fit (Universal Guide)

Preparation: Engine cold, battery disconnected. Photograph belt routing. Remove the FEAD belt.
Lock the rotor: Use the correct alternator holding tool (insert in the rotor shaft) and a matching OAP removal socket for the pulley splines/hex.
Remove old pulley: Hold the rotor steady; loosen the pulley in the correct direction (usually standard thread, but verify OE info). Remove any dust cap/shroud.
Check & clean: Inspect alternator shaft and threads; clean and lightly degrease. Do not grease the belt or pulley grooves.
Install new INA OAP: Thread on by hand to avoid cross-threading. Hold rotor and torque the pulley to the manufacturer’s spec. Refit the protective cap.
Refit belt & test: Route belt, ensure all ribs seat. Start engine, watch tensioner movement, listen for noise, and confirm charging performance.

Always follow the exact torque values and procedures in the workshop manual. Use the proper INA/REPXPERT special tools to avoid alternator damage.

Quick Function Check (Off-Vehicle)

Pulley should rotate freely in the overrun direction and lock in the drive direction.
Any grinding, binding, or free-wheeling both ways = replace.

Manufacturer	Productnumber
mazda	PY8V-18-300D , PY8V18300D
mazda	PY8V18300D
mazda	PY8W-18-300 , PY8W18300
mazda	PY8W18300
mazda	S51C-18-300 , S51C18300
mazda	S51C18300
mazda	S51L-18-300 , S51L18300
mazda	S51L-18-300B , S51L18300B
mazda	S51L18300
mazda	S51L18300B
mazda	S51W-18-300 , S51W18300
mazda	S51W18300
mazda	S551-18-300 , S55118300
mazda	S551-18-300A , S55118300A
mazda	S55118300
mazda	S55118300A
mazda	S805-18-300 , S80518300
mazda	S80518300
mazda	S8D1-18-300 , S8D118300
mazda	S8D118300
mazda	SH01-18-300 , SH0118300
mazda	SH01-18-300A , SH0118300A
mazda	SH01-18-330 , SH0118330
mazda	SH0118300
mazda	SH0118300A
mazda	SH0118330
mazda	SH1A-18-330 , SH1A18330
mazda	SH1A-18-330A , SH1A18330A
mazda	SH1A18330
mazda	SH1A18330A
mazda	SH1N-18-300 , SH1N18300
mazda	SH1N18300
mazda	SHDG-18-300 , SHDG18300
mazda	SHDG18300
mazda	SHMW-18-300 , SHMW18300
mazda	SHMW18300
mitsubishi	1800A567

Usage numbers
AUTEX 654892
CONTINENTAL CTAM AP9100
FEBI BILSTEIN 10192
FEBI BILSTEIN 101927
GATES 7789-10218
GATES 778910218
GATES OAP7218
IPD 15-3887
IPD 153887
RUVILLE 57081
SCHAEFFLER GRUPPE 535 0247 10
SCHAEFFLER GRUPPE 535024710
Schaeffler INA F-570870
Schaeffler INA F-570870.01
Schaeffler INA F-570870.02
Schaeffler INA F-570870.03
Schaeffler INA F-570870.04
Schaeffler INA F-570870.05
Schaeffler INA F570870
Schaeffler INA F57087001
Schaeffler INA F57087002
Schaeffler INA F57087003
Schaeffler INA F57087004
Schaeffler INA F57087005
SKF VKM 06408
SKF VKM06408
TRIPLE FIVE 3 5507 1
TRIPLE FIVE 333704
TRIPLE FIVE 355071
TRIPLE FIVE A002TX3081
TRIPLE FIVE A002TX6081
TRIPLE FIVE A002TX6981A
TRIPLE FIVE A002TX7581ZT
TRIPLE FIVE A002TX9181
TRIPLE FIVE A002TX9981
TRIPLE FIVE A002TXA081
TRIPLE FIVE A005TV1781
TRIPLE FIVE A252C61735
TRIPLE FIVE A2TX3081
TRIPLE FIVE A2TX6081
TRIPLE FIVE A2TX6981A
TRIPLE FIVE A2TX7581ZT
TRIPLE FIVE A2TX9181
TRIPLE FIVE A2TX9981
TRIPLE FIVE A2TXA081
TRIPLE FIVE A5TV1781
ZEN 5652

Manufacturer	Model	Version	Engine code	Construction type	Construction start	Construction end	Pk	Power kw
mazda

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