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Dayco
Street Performance BalancerDayco PB1203ST Engine Harmonic Balancer
| Brand | Dayco PB1203ST |
|---|---|
| Bolt Hole Quantity | 3 |
| Counterweight Balance | Hub weighted |
| Crank Bore | 1.374 |
| Crank Bore | 34.89 |
| Crank Trigger/Exciter Plate | No |
| Hardware Included | No |
| Installation Instructions Included | No |
| Nose Outside Diameter | 1.876 |
| Nose Outside Diameter | 47.65 |
| Number of Integrated Pulleys | 0 |
| Outer Ring Material | Cast iron |
| Overall Outside Diameter | 165.00 |
| Overall Outside Diameter | 6.497 |
| Overall Width | 3.182 |
| Overall Width | 80.80 |
| Ring Width | 1.423 |
| Ring Width | 36.14 |
| Timing Marks | Yes |
| Woodruff Key Included | No |
| Product line | Street Performance Balancer |
| Fits | Ford and Mercury · 21 vehicles |
Street Performance Balancer. Built for performance-focused engine applications.
Cast iron ring. Provides durable construction for dependable operation.
Timing marks included. Makes setup and alignment easier during installation.
Cross-references Pioneer 872008 and Pioneer DA-2008HD for the same application. See all 2.
$231.84Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
$231.84
Free shipping
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Engine Harmonic Balancer options
Dayco Street Performance Balancer PB1203ST
The Dayco PB1203ST Street Performance Balancer is a 3-bolt engine harmonic balancer built for select Ford and Mercury V8 applications from 1968-1969. It features a hub-weighted counterweight balance, cast iron outer ring, and timing marks for accurate engine setup.
Key Features
- Part number PB1203ST from Dayco Street Performance Balancer line
- 3-bolt engine harmonic balancer design
- Hub weighted counterweight balance
- Cast iron outer ring construction
- Timing marks included for engine timing reference
- Crank bore: 1.374 in. / 34.89 mm
- Nose outside diameter: 1.876 in. / 47.65 mm
- Overall outside diameter: 6.497 in. / 165.00 mm
- Overall width: 3.182 in. / 80.80 mm
- Ring width: 1.423 in. / 36.14 mm
- No integrated pulleys, crank trigger plate, hardware, or woodruff key included
Street Performance Balancer Details
Dayco’s Street Performance Balancer line is aimed at performance-oriented engine builds that need a harmonic balancer with the correct fit, balance style, and timing reference. The PB1203ST uses a hub-weighted design and a cast iron outer ring to match the requirements of specific 3-bolt Ford and Mercury engines, including 1968-1969 Ford Bronco, E-100 Econoline, LTD, Mustang, and Mercury Cougar and Montego applications. This part number PB1203ST is also cross-referenced to Pioneer 872008 and DA-2008HD for the same application.
What This Part Helps Address
- Engine vibration from a worn or incorrect harmonic balancer
- Timing mark visibility issues during ignition setup
- Fitment problems on 3-bolt Ford and Mercury engine applications
- Replacement needs for a damaged or deteriorated balancer ring
- Restoration or performance rebuilds requiring the correct balancer style
Installation Notes
- Verify crank bore, nose diameter, and overall dimensions before installation
- Confirm the engine uses a 3-bolt harmonic balancer configuration
- Check that the application requires a hub-weighted balancer with timing marks
- Use the correct service procedures for balancer installation and engine timing setup
- Hardware is not included, so existing or separately sourced installation components must be confirmed before assembly
Quality Assurance
Built by Dayco for street performance applications, the PB1203ST is engineered around the listed dimensions and fitment requirements for select 1968-1969 Ford and Mercury vehicles. Confirm all measurements and vehicle details against the application before installation.
Compatible Vehicles
- Fits 1968-1969 Ford Bronco, N/A — 3-bolt engine harmonic balancer with counterweight and raised pulley; Street Performance Balancer
- Fits 1969 Ford E-100 Econoline, N/A — 3-bolt engine harmonic balancer with counterweight and raised pulley; Street Performance Balancer
- Fits 1968-1969 Ford LTD, N/A — 3-bolt engine harmonic balancer with counterweight and raised pulley; Street Performance Balancer
- Fits 1968-1969 Ford Mustang, N/A — 3-bolt engine harmonic balancer with counterweight and raised pulley; Street Performance Balancer
- Fits 1968 Mercury Cougar, N/A — 3-bolt engine harmonic balancer with counterweight and raised pulley; Street Performance Balancer
- Fits 1969 Mercury Cougar, N/A — Street Performance Balancer
- Fits 1968-1969 Mercury Montego, N/A — 3-bolt engine harmonic balancer with counterweight and raised pulley; Street Performance Balancer
This part fits 21 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1969 | Ford | Bronco | 5.0L | V8 | N/A | 3-bolt engine harmonic balancer with counterweight and raised pulley; Street Performance Balancer |
| 1969 | Ford | Bronco | — | — | N/A | 3-bolt engine harmonic balancer with counterweight and raised pulley; Street Performance Balancer |
| 1969 | Ford | E-100 Econoline | 5.0L | V8 | N/A | 3-bolt engine harmonic balancer with counterweight and raised pulley; Street Performance Balancer |
| 1969 | Ford | E-100 Econoline | — | — | N/A | 3-bolt engine harmonic balancer with counterweight and raised pulley; Street Performance Balancer |
| 1969 | Ford | LTD | 5.0L | V8 | N/A | 3-bolt engine harmonic balancer with counterweight and raised pulley; Street Performance Balancer |
| 1969 | Ford | LTD | — | — | N/A | 3-bolt engine harmonic balancer with counterweight and raised pulley; Street Performance Balancer |
| 1969 | Ford | Mustang | 5.0L | V8 | N/A | 3-bolt engine harmonic balancer with counterweight and raised pulley; Street Performance Balancer |
| 1969 | Ford | Mustang | — | — | N/A | 3-bolt engine harmonic balancer with counterweight and raised pulley; Street Performance Balancer |
| 1969 | Mercury | Cougar | 5.0L | V8 | N/A | Street Performance Balancer |
| 1969 | Mercury | Cougar | — | — | N/A | Street Performance Balancer |
| 1969 | Mercury | Montego | 5.0L | V8 | N/A | 3-bolt engine harmonic balancer with counterweight and raised pulley; Street Performance Balancer |
| 1969 | Mercury | Montego | — | — | N/A | 3-bolt engine harmonic balancer with counterweight and raised pulley; Street Performance Balancer |
| 1968 | Ford | Bronco | 5.0L | V8 | N/A | 3-bolt engine harmonic balancer with counterweight and raised pulley; Street Performance Balancer |
| 1968 | Ford | Bronco | — | — | N/A | 3-bolt engine harmonic balancer with counterweight and raised pulley; Street Performance Balancer |
| 1968 | Ford | LTD | 5.0L | V8 | N/A | 3-bolt engine harmonic balancer with counterweight and raised pulley; Street Performance Balancer |
| 1968 | Ford | LTD | — | — | N/A | 3-bolt engine harmonic balancer with counterweight and raised pulley; Street Performance Balancer |
| 1968 | Ford | Mustang | 5.0L | V8 | N/A | 3-bolt engine harmonic balancer with counterweight and raised pulley; Street Performance Balancer |
| 1968 | Mercury | Cougar | 5.0L | V8 | N/A | 3-bolt engine harmonic balancer with counterweight and raised pulley; Street Performance Balancer |
| 1968 | Mercury | Cougar | — | — | N/A | 3-bolt engine harmonic balancer with counterweight and raised pulley; Street Performance Balancer |
| 1968 | Mercury | Montego | 5.0L | V8 | N/A | 3-bolt engine harmonic balancer with counterweight and raised pulley; Street Performance Balancer |
| 1968 | Mercury | Montego | — | — | N/A | 3-bolt engine harmonic balancer with counterweight and raised pulley; Street Performance Balancer |
| No rows match your filter. | ||||||
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Pioneer — 872008Pioneer — DA-2008HD