Top 9 Alternator Decoupler Pulley – Automotive Replacement Alternators

As an Amazon Associate I earn from qualifying purchases.

1. Dorman


Dorman 300-850 Alternator Decoupler Pulley

Dorman #ad - Direct replacement for a proper fit. Oe part number: 04261206ad, 04861506ab, 04861506ah, 04261506ac, 4861506ae, 04861506ag, 04861506ae, 4861506ab, 04261506ae, 4861506ad, 4861506AG. High-quality materials for trouble-free performance. Replace the piece, not the assembly. Replacement restores the alternator to proper performance, preventing belt noise as well as premature wear and tear on the belt and belt-driven engine accessories.
BrandDorman #ad
ManufacturerDorman - OE Solutions #ad
Height2.5 Inches
Length3 Inches
Weight1 Pounds
Width3 Inches
Part Number300-850
WarrantyLimited Lifetime Warranty

2. Gates


Gates 37017P Alternator Pulley

Gates #ad - The package length of the Product is 02 inches. The package height of the Product is 7. 2 inches. Country of Origin : United States. The package width of the Product is 4. 4 inches.
BrandGates #ad
Manufacturernobrandname #ad
Height0 Inches
Length0 Inches
Weight1.34 Pounds
Width0 Inches
Part Number37017P

3. Shankly


18 Piece Alternator Pulley Kit, Alternator Pulley Tool by Shankly

Shankly #ad - Effective design: allows alternator shaft to be held while the pulley retainer is removed, helping the mechanic complete the job quickly and safely. Complete set: shankly’s alternator pulley set features a combination of components including: TRX-Star-T50-33T*113mm, Spline-M10-33T*113mm, 3/8"Sq Drive.

Wide application: shankly’s alternator tool fits a wide range of vehicle makes including Applications: Alfa Romeo, Volvo, Seat, BMW, Renault, Audi, Mercedes, Mitsubishi, Skoda, GM, Fiat, Citroen, VW. See list of components in description below. Fits most alternators: shankly’s alternator pulley incorporates a range of combination TRX-Star, spline and hex adapters to fit most alternators. Easy removal: shankly’s alternator pulley tool kit permits easy removal of freewheel alternator, either on or off the vehicle, making simple work of alternator removal and installation jobs.
BrandShankly #ad
ManufacturerShankly #ad
Height7.48 Inches
Length11.42 Inches
Width2.36 Inches
Part NumberA1087

4. ABN


ABN Alternator Pulley Service Decoupler 18-Piece Insert Bit Socket Set Tool Kit – Car Pulley Removal Decoupling Puller

ABN #ad - Built to last: no need to worry about parts breaking down after repeated, extended use; Constructed from chrome vanadium steel CR-V with a black oxide finish and/or polished coating for ultimate strength and longevity. Package contents: includes t50 x 113mml socket, m10 x 113mml socket, h8, 22mm hex socket, t50, 2mm hex x 33 teeth, 15mm hex x 33 teeth, 3/8-inch drive x m10 x 80mml with 14 x 33T, 10mm 75mm long bits – t40, 1/2-inch drive x M10 140mm long bit socket, 35mm round socket with 4 pins, 1/2-inch drive x 10mm bits holder, H10, m10, M8, M10 x H12 64mm long.

Easy storage: pack includes heavy-duty 11. 9” x 2. 5” x 8. 75” inch 302cm x 6. 4cm x 22. 2cm plastic blow-molded carrying case with handle for easy transportation, safe storage, and quick organization; Case prevents parts from getting lost in your workbench drawers. For your vehicle: for freewheel alternator pulley on or off vehicle; works on both overriding alternator decoupler oaD and one-way clutch OWC pulleys; Compatible with Audi, Cadillac, Toyota, Chevrolet, Renault, Seat, Ford, BMW, Porsche, Honda, Chrysler, Citroen, Mercedes-Benz, Pontiac, Scion, Opel, Lexus, Peugeot, Buick, Fiat, Mercury, Dodge, Saturn, VW.

Extend belt and belt tensioner life: use the abn alternator Pulley Service Decoupler 18-Piece Tool Kit to change the pulley on your vehicle for quieter and smoother accessory drive operation and reduced vibrations in the passenger compartment.
BrandABN #ad
ManufacturerABN #ad
Height2.5 Inches
Length11.9 Inches
Weight4.19 Pounds
Width8.75 Inches
Part Number4057

5. ACDelco


ACDelco 37018P Professional Alternator Decoupler Pulley with Dust Cap

ACDelco #ad - Manufactured to meet expectations for fit, form, and function. Torsion spring absorbs the engine vibration for a quieter, smoother ride. Provides the performance and dependability you expect from ACDelco. Professional, premium aftermarket replacement.
BrandACDelco #ad
ManufacturerACDelco #ad
Height3.6 Inches
Length8.8 Inches
Weight1 Pounds
Width4.8 Inches
Part Number37018P
WarrantyLimited Lifetime Warranty (Parts Only). Please see for more details.

6. Continental


Continental 49915 Overrunning Alternator Decoupler Pulley

Continental #ad - Improves front-end accessory drive component life and fuel economy. Internal torsion spring effectively eliminates vibration felt by the driver. Goodyear engineered Products are now branded Continental Elite. Includes one-way clutch that enables alternator to coast freely if belt speed suddenly decreases. Made of oe-specified materials designed to meet or exceed OEM fit and performance.
BrandContinental #ad
ManufacturerContinental ContiTech #ad
Height3.09 Inches
Length3.81 Inches
Width3.81 Inches
Part Number49915

7. Gates


Gates 37028P Alternator Decoupler Pulley

Gates #ad - The package length of the Product is 8. 68 inches. The package height of the Product is 4. 4 inches. Country of Origin : United States. The package width of the Product is 6. 6 inches.
BrandGates #ad
ManufacturerGates #ad
Height0 Inches
Length0 Inches
Weight1.13 Pounds
Width0 Inches
Part Number37028P



5 Piece | Pully Sockets and Shaft Bits fit Most OAD and OWC Pulleys | Alternator Repair Tool, OEM TOOLS 27261 Alternator Decoupler Pulley Tool Kit, Designed for Universal Use

OEM TOOLS #ad - Protected by: if something happens to your alternator pulley removal tool during normal use, it should be covered by the OEMTOOLS Limited Lifetime warranty.

Variety of uses: set works on both overriding alternator decoupler OAD and one-way clutch OWC pulleys. Everything you need: set includes two pulley sockets: h22 x 33t and h17 x h19 x 30l and three Shaft Bits: H10 x FM H10, T50 x H10 x 75L and M10 x H10 x 75L. See product manual for full warranty conditions and restrictions. Use anytime: these pulley tools may be used while the alternator is on or off the vehicle. Convenient storage: this pulley tool set comes in a vibrant red case for easy storage, travel, and organization.
BrandOEM TOOLS #ad
ManufacturerOEMTOOLS #ad
Height1.8 Inches
Length4.7 Inches
Weight0.8 Pounds
Width3.5 Inches
Part Number27261
WarrantyOEMTOOLS Limited Lifetime

9. Gates


Gates 37112P Alternator Decoupler Pulley

Gates #ad - Country of Origin : United States. The package width of the Product is 6. 6 inches. The package height of the Product is 4. 4 inches. The package length of the Product is 8. 68 inches.
BrandGates #ad
ManufacturerGates #ad
Height0 Inches
Length0 Inches
Width0 Inches
Part Number37112P