Dayco PB1146ST Engine Harmonic Balancer

Brand	Dayco PB1146ST
Counterweight Balance	Neutral, no counterweight
Crank Bore	1.379
Crank Bore	35.01
Crank Trigger/Exciter Plate	No
Hardware Included	No
Installation Instructions Included	No
Nose Outside Diameter	1.851
Nose Outside Diameter	47.00
Number of Integrated Pulleys	1
Outer Ring Material	Cast Iron
Overall Outside Diameter	6.260
Overall Outside Diameter	159.00
Overall Width	2.788
Overall Width	70.80
Pulley 1 Number Of Grooves	6
Pulley 1 Outside Diameter	5.512
Pulley 1 Outside Diameter	140.000
Pulley 1 Type	Serpentine
Ring Width	1.504
Ring Width	38.18
Timing Marks	Yes
Woodruff Key Included	No
Product line	Street Performance Balancer
Fits	Lexus and Toyota · 53 vehicles

Street Performance Balancer. Dayco tuning for a harmonic balancer built for performance use.

Neutral balance design. No counterweight for a cleaner, more precise rotating assembly.

Cast iron ring. Durable construction with timing marks for easier setup.

$229.40Free shipping

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Street Performance Harmonic Balancer for Toyota and Lexus

The Dayco PB1146ST Street Performance Balancer is a neutral-balance engine harmonic balancer built for select Toyota and Lexus V8 applications. It combines a cast iron outer ring with a single integrated serpentine pulley to support accessory drive operation while maintaining timing mark visibility.

Key Features

Neutral balance design with no counterweight
Cast iron outer ring for durable engine service
Single integrated pulley with 6-groove serpentine configuration
Timing marks included for engine setup and service reference
2-bolt hole design
Crank bore: 1.379 in. / 35.01 mm
Nose outside diameter: 1.851 in. / 47.00 mm
Overall outside diameter: 6.260 in. / 159.00 mm
Overall width: 2.788 in. / 70.80 mm

Product Details

Dayco PB1146ST is part of the Street Performance Balancer line, a product range focused on engine harmonic balancers for street-driven performance and service replacement applications. This unit is engineered with a neutral counterweight balance, a cast iron outer ring, and a 6-groove serpentine pulley to match the accessory drive requirements of compatible Toyota and Lexus platforms. The PB1146ST also includes timing marks, making it easier to verify ignition and engine timing during maintenance.

Compatible With 1998-2007 Lexus LX470, N/A; 2003-2009 Lexus GX470, N/A; 1998-2007 Toyota Land Cruiser, N/A; 2000-2009 Toyota Tundra, N/A; 2001-2009 Toyota Sequoia, N/A; and 2003-2009 Toyota 4Runner, N/A. This part cross-references no listed alternate part numbers in the provided data.

Common Uses

Replacing a worn or damaged engine harmonic balancer
Restoring proper crankshaft vibration control
Addressing timing mark visibility issues during service
Correcting serpentine pulley wear or drive alignment concerns
Supporting accessory belt operation on compatible Toyota and Lexus V8 engines

Installation Notes

Verify crank bore, nose diameter, pulley groove count, and bolt-hole configuration before installation. This balancer does not include hardware, installation instructions, a crank trigger/exciter plate, or a Woodruff key. Use the existing service procedure for the vehicle and confirm timing marks are aligned before final assembly.

Quality Assurance

Dayco Street Performance Balancer components are built to match the dimensional and functional requirements listed above for the specified Toyota and Lexus applications. Confirm fitment by year, model, and engine configuration before ordering.

This part fits 53 vehicles

Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

Year	Make	Model	Liters	Cylinders	Position	Notes
2009	Lexus	GX470	—	—	N/A	Street Performance Balancer
2009	Toyota	4Runner	4.7L	V8	N/A	Street Performance Balancer
2009	Toyota	Sequoia	4.7L	V8	N/A	Street Performance Balancer
2009	Toyota	Tundra	4.7L	V8	N/A	Street Performance Balancer
2008	Lexus	GX470	—	—	N/A	Street Performance Balancer
2008	Toyota	4Runner	4.7L	V8	N/A	Street Performance Balancer
2008	Toyota	Sequoia	4.7L	V8	N/A	Street Performance Balancer
2008	Toyota	Tundra	4.7L	V8	N/A	Street Performance Balancer
2007	Lexus	GX470	—	—	N/A	Street Performance Balancer
2007	Lexus	LX470	—	—	N/A	Street Performance Balancer
2007	Toyota	4Runner	4.7L	V8	N/A	Street Performance Balancer
2007	Toyota	Land Cruiser	—	—	N/A	Street Performance Balancer
2007	Toyota	Sequoia	—	—	N/A	Street Performance Balancer
2007	Toyota	Tundra	4.7L	V8	N/A	Street Performance Balancer
2006	Lexus	GX470	—	—	N/A	Street Performance Balancer
2006	Lexus	LX470	—	—	N/A	Street Performance Balancer
2006	Toyota	4Runner	4.7L	V8	N/A	Street Performance Balancer
2006	Toyota	Land Cruiser	—	—	N/A	Street Performance Balancer
2006	Toyota	Sequoia	—	—	N/A	Street Performance Balancer
2006	Toyota	Tundra	4.7L	V8	N/A	Street Performance Balancer
2005	Lexus	GX470	—	—	N/A	Street Performance Balancer
2005	Lexus	LX470	—	—	N/A	Street Performance Balancer
2005	Toyota	4Runner	4.7L	V8	N/A	Street Performance Balancer
2005	Toyota	Land Cruiser	—	—	N/A	Street Performance Balancer
2005	Toyota	Sequoia	—	—	N/A	Street Performance Balancer
2005	Toyota	Tundra	4.7L	V8	N/A	Street Performance Balancer
2004	Lexus	GX470	—	—	N/A	Street Performance Balancer
2004	Lexus	LX470	—	—	N/A	Street Performance Balancer
2004	Toyota	4Runner	4.7L	V8	N/A	Street Performance Balancer
2004	Toyota	Land Cruiser	—	—	N/A	Street Performance Balancer
2004	Toyota	Sequoia	—	—	N/A	Street Performance Balancer
2004	Toyota	Tundra	4.7L	V8	N/A	Street Performance Balancer
2003	Lexus	GX470	—	—	N/A	Street Performance Balancer
2003	Lexus	LX470	—	—	N/A	Street Performance Balancer
2003	Toyota	4Runner	4.7L	V8	N/A	Street Performance Balancer
2003	Toyota	Land Cruiser	—	—	N/A	Street Performance Balancer
2003	Toyota	Sequoia	—	—	N/A	Street Performance Balancer
2003	Toyota	Tundra	4.7L	V8	N/A	Street Performance Balancer
2002	Lexus	LX470	—	—	N/A	Street Performance Balancer
2002	Toyota	Land Cruiser	—	—	N/A	Street Performance Balancer
2002	Toyota	Sequoia	—	—	N/A	Street Performance Balancer
2002	Toyota	Tundra	4.7L	V8	N/A	Street Performance Balancer
2001	Lexus	LX470	—	—	N/A	Street Performance Balancer
2001	Toyota	Land Cruiser	—	—	N/A	Street Performance Balancer
2001	Toyota	Sequoia	—	—	N/A	Street Performance Balancer
2001	Toyota	Tundra	4.7L	V8	N/A	Street Performance Balancer
2000	Lexus	LX470	—	—	N/A	Street Performance Balancer
2000	Toyota	Land Cruiser	—	—	N/A	Street Performance Balancer
2000	Toyota	Tundra	4.7L	V8	N/A	Street Performance Balancer
1999	Lexus	LX470	—	—	N/A	Street Performance Balancer
1999	Toyota	Land Cruiser	—	—	N/A	Street Performance Balancer
1998	Lexus	LX470	—	—	N/A	Street Performance Balancer
1998	Toyota	Land Cruiser	—	—	N/A	Street Performance Balancer
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