6G910300MA Alternator with Decoupler Pulley for Volvo V60 L6 3.0L, V70 3.2L – 180A 12V
6G910300MA Alternator with Decoupler Pulley for Volvo V60 L6 3.0L, V70 3.2L – 180A 12V
6G910300MA Alternator with Decoupler Pulley for Volvo 3.0L and 3.2L Six-Cylinder Models
The 6G910300MA alternator is a 180-amp, 12-volt unit with a decoupler pulley and counterclockwise rotation. The supplier lists it for Volvo inline-six models including the V60 3.0L and V70 3.2L, along with the S60, S80, XC60, XC70 and XC90. Easy Life Markets sells it as one alternator, described by the supplier as new, with the pulley already fitted as shown in the photos.
On these Volvos the alternator sits in an accessory drive that works hard: a big six-cylinder engine, a long serpentine belt and a lot of electrical equipment to feed. A 180-amp rating reflects that load. When the original starts to fail you usually get a low-voltage message on the dash, a battery that will not stay charged, or belt noise from a worn pulley.
In the Box
- 1 x alternator with decoupler pulley
The supplier adds "as pics shown", so the photos are your guide to what arrives. Fixing bolts, belt and fitting instructions are not listed.
Specifications
- Product type: Alternator
- Amperage: 180A
- Voltage: 12V
- Rotation: Counterclockwise (CCW)
- Pulley: Decoupler pulley
- Pulley class: Listed by the supplier as "Internal"
- Condition: New, as stated by the supplier
- Brand: Unbranded
- Reference numbers: 6G910300MA, 6G910300MB, 6G9MA, 30644805, 31110085, 36000209, LR031223, 0121715009, 0121715109, 0125811051, F00E100565, 11346, 11346N
- SKU: CJQT292103901AZ
Supplier Fitment List
Every line below is given by the supplier as 180A / 12V, CCW rotation, with decoupler pulley:
- Volvo S60, 2012, L5 2.5L
- Volvo S60, 2011-2016, L6 3.0L
- Volvo S80, 2008-2015, L6 3.0L
- Volvo S80, 2007-2014, L6 3.2L
- Volvo V60, 2015-2016, L6 3.0L
- Volvo V70, 2008-2010, L6 3.2L
- Volvo XC60, 2010-2016, L6 3.0L
- Volvo XC60, 2010-2015, L6 3.2L
- Volvo XC70, 2009-2015, L6 3.0L
- Volvo XC70, 2008-2015, L6 3.2L
- Volvo XC90, 2007-2014, L6 3.2L
Before You Order: Three Checks
A fitment list from a supplier is a guide, not a promise. Volvo used different alternators across engines and model years, and the list above is only as good as the supplier's data. Please confirm with at least one of these:
- Part number. Find the label on your existing alternator and compare it with the reference numbers above, for example 30644805, 31110085, 36000209 or 0121715009.
- VIN lookup. A Volvo parts catalogue will return the correct alternator for your chassis number. You can also send us your VIN and we will compare it with this listing.
- Visual match. Compare the mounting lugs, the electrical connections and the pulley in the photos with the unit on your engine.
Why the Rotation Direction Matters
Most alternators are listed as clockwise. This one is listed as counterclockwise, and that is not a detail to skip. A decoupler pulley drives in one direction only. Fit a unit made for the opposite rotation and the pulley will freewheel when it should drive, so the alternator will not charge. If your original label or catalogue entry says CCW, you are looking at the right kind of part.
The Decoupler Pulley in Plain Terms
A decoupler pulley has a one-way clutch and a spring inside it. It lets the alternator rotor overrun when the engine slows suddenly, and it soaks up the small speed pulses that every engine sends down the belt. The result is a quieter belt drive and less work for the tensioner. It also wears out. A rattle at idle, a chirp when the engine is switched off, or a tensioner arm that flutters visibly are common signs that the pulley on the old unit has had enough. Since this alternator comes with its pulley fitted, you replace both in one go.
Signs the Alternator Is on Its Way Out
- A charging system or low battery message on the instrument display
- Dim lights or slow window motors at idle
- A battery that goes flat after a few days of normal use
- Belt rattle or squeal from the front of the engine
- A humming or grinding noise that changes with engine speed
A tired battery produces some of the same symptoms. Test the battery, and measure the charging voltage with the engine running, before spending money.
Fitting Advice
- Disconnect the battery negative lead before starting.
- Record the belt routing, release the tensioner and remove the belt.
- Disconnect the wiring, undo the mounting bolts and lift the old unit out.
- Check the new unit against the old one, then fit it and tighten everything to the workshop manual figures.
- Refit the belt, reconnect the battery and check the charging voltage.
Access to the alternator on these six-cylinder engines is restricted, and other parts may need to come off first. We recommend having the work done by a qualified mechanic unless you know the car well.
Who Should Buy It
Owners of the listed Volvo models whose original carries one of the reference numbers above, and independent Volvo specialists who want a complete unit with the pulley already on it.
Common Questions
Is this a genuine Volvo part? No. The 6G910300MA alternator sold here is an unbranded aftermarket unit. The Volvo and other numbers are for cross-reference only.
Does the pulley come with it? Yes. The supplier lists the unit with a decoupler pulley, and the photos show it fitted.
My car is not on the list but the number matches. Will it work? A matching part number is a strong sign, but confirm with your VIN before ordering.
Buy the 6G910300MA Alternator at Easy Life Markets
Order the 6G910300MA alternator here once you have matched it to your car. The current price and availability are shown on this page. Please read our return and refund policy before buying.
Related Products
More in our alternators, electrical and auto parts collections.
Product Photos
