OEM PART NUMBERS: • GM Pulley: 12689345 • 12723698
• Litens: 920111A • 920111 • 920111E
• Bando: 480097
• Mitsubishi Electric Pulley: A252B638IC
• Fits GM Alternator Current: 85671415 — 170 Amp auxiliary
• Fits GM Alternator Superseded: 84677779 • 84874680 • 85563635 • 87842529
• Fits Mitsubishi Alternator: A002TV1182AC • A002TV1182BC
• Mitsubishi Short Form: A2TV1182AC • A2TV1182BC
SPECIFICATIONS: • Type: Overrunning Alternator Decoupler (OAD)
• Class: SD6 — Serpentine Decoupler 6 Groove
• Grooves: 6 • Rotation: Clockwise (CW)
• Groove Outside Diameter: 59.02mm
• Overall Length: 49.94mm
• Bearing Bore: 17mm / 16.98mm
• Hub to First Groove: 8.04mm
• Dust Cap: Included
• OE Supplier: Litens Automotive
• Condition: New Aftermarket
VEHICLE APPLICATIONS: • Chevrolet Silverado 2500HD and 3500HD 6.6L (2020-2022)
• GMC Sierra 2500HD and 3500HD 6.6L (2020-2022)
• 6.6L L8T gas VIN 7 at 401 CID and 6571cc
• 6.6L L5P Duramax diesel VIN Y at 403 CID and 6599cc
• Fits the 170 Amp auxiliary alternator on both engines
PART NUMBER CHAIN: • 12689345 — a GM number for this pulley
• 12723698 — the other GM number for this pulley
• 920111A — the Litens aftermarket number
• 480097 — the Bando number
• A252B638IC — the Mitsubishi Electric number
• All of these describe one decoupler pulley
ENGINE GATE — READ THIS FIRST: • Position required: the auxiliary alternator
• Measure 49.94mm overall length on your own pulley
• Count 6 grooves and measure a 59.02mm groove OD
• Confirm a 17mm bearing bore
• This is an overrunning decoupler with a clutch
• Read 85671415 or A002TV1182 off your own alternator
WHAT THIS UNIT IS: • Type: overrunning alternator decoupler with a dust cap
• Grooves: 6 serpentine clockwise
• Size: 59.02mm groove OD at 49.94mm long
• Bore: 17mm • Hub to first groove: 8.04mm
• Position: the auxiliary alternator on the GM 6.6L HD
PRODUCT NOTICE:
As a parts distributor we mostly sell aftermarket parts (any OEM parts would be noted as such). Aftermarket parts are not sourced from the original vehicle or equipment manufacturer, but are designed to function the same as - if not better than - the original. All parts sold are new.
WARNING - This product may expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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