OE Quality
60-Day Returns

Dayco PB1370N Engine Harmonic Balancer
Overview of Dayco Premium OEM Replacement Balancer PB1370N
The Dayco Premium OEM Replacement Balancer PB1370N is engineered for reliable performance in select Chrysler, Dodge, and Mitsubishi vehicles. Designed as an engine harmonic balancer, it helps maintain engine stability and reduce vibrations for models like the Avenger, D50, Eclipse, and Sebring.
- Compatible with Chrysler, Dodge, and Mitsubishi vehicles including Avenger, D50, Eclipse, and Sebring
- Part number PB1370N for precise identification
- Constructed with a cast iron outer ring for durability
- Includes two integrated serpentine pulleys with 4 and 5 grooves respectively
- Neutral counterweight balance design
- Overall outside diameter of 7.875 inches and width of 2.048 inches
Detailed Product Features and Specifications
This engine harmonic balancer features a neutral counterweight balance, meaning it does not include additional counterweights, which suits specific engine configurations. The crank bore measures 1.158 inches (29.41 mm), ensuring a precise fit on compatible crankshafts. The balancer includes two integrated serpentine pulleys: the first pulley has 4 grooves with an outside diameter of 7.756 inches (197 mm), and the second pulley has 5 grooves with an outside diameter of 6.182 inches (157 mm). The outer ring is made of cast iron, providing strength and resistance to wear. The overall width of the balancer is 2.048 inches (52 mm), and the ring width is 1.667 inches (42.32 mm). This part does not include a crank trigger or exciter plate, hardware, installation instructions, timing marks, or a Woodruff key.
About the Premium OEM Replacement Balancer Product Line
The Dayco Premium OEM Replacement Balancer line is designed to meet original equipment manufacturer specifications, providing a direct replacement for worn or damaged harmonic balancers. This product line focuses on delivering components that maintain engine balance and pulley function without requiring additional modifications. The PB1370N model exemplifies this approach by matching OEM dimensions and materials, ensuring compatibility and reliable operation in the specified vehicle models.
Common Applications and Problem Resolution
- Reduces engine vibrations caused by worn or damaged harmonic balancers
- Restores proper pulley alignment for serpentine belt systems
- Prevents crankshaft damage due to imbalance
- Eliminates noise and rough idling related to balancer failure
- Supports engine longevity by maintaining harmonic stability
Installation Notes and Tips
- Ensure the crank bore size of 1.158 inches matches the vehicle’s crankshaft
- Verify pulley groove counts (4 and 5 grooves) align with existing serpentine belts
- Use proper tools to press the balancer onto the crankshaft without damaging the cast iron outer ring
- Check for absence of timing marks and Woodruff key; installation requires alignment based on OEM specifications
- Hardware and installation instructions are not included; refer to vehicle service manual for guidance
Quality Assurance and Warranty
Dayco’s Premium OEM Replacement Balancer PB1370N is manufactured to meet stringent quality standards, ensuring durability and performance consistent with OEM requirements. While specific warranty details are not provided, Dayco products typically come with manufacturer-backed warranties covering defects in materials and workmanship. For exact warranty information, consult Dayco or authorized distributors.
| Brand | Dayco |
| Part Number | PB1370N |
| Position | Premium OEM Replacement Balancer |
| Counterweight Balance | Neutral, no counterweight |
| Crank Bore | 1.158 |
| Crank Bore | 29.41 |
| Crank Trigger/Exciter Plate | No |
| Hardware Included | No |
| Installation Instructions Included | No |
| Nose Outside Diameter | 0 |
| Nose Outside Diameter | 0.00 |
| Number of Integrated Pulleys | 2 |
| Outer Ring Material | Cast Iron |
| Overall Outside Diameter | 7.875 |
| Overall Outside Diameter | 200.00 |
| Overall Width | 2.048 |
| Overall Width | 52.00 |
| Pulley 1 Number Of Grooves | 4 |
| Pulley 1 Outside Diameter | 7.756 |
| Pulley 1 Outside Diameter | 197.000 |
| Pulley 1 Type | Serpentine |
| Pulley 2 Number Of Grooves | 5 |
| Pulley 2 Outside Diameter | 6.182 |
| Pulley 2 Outside Diameter | 157.000 |
| Pulley 2 Type | Serpentine |
| Ring Width | 1.667 |
| Ring Width | 42.32 |
| Timing Marks | No |
| Woodruff Key Included | No |
This part fits 13 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1999 | Dodge | Avenger | 2.0L | L4 | N/A | Premium OEM Replacement Balancer |
| 1998 | Dodge | Avenger | 2.0L | L4 | N/A | Premium OEM Replacement Balancer |
| 1998 | Mitsubishi | Eclipse | 2.4L | L4 | N/A | 5 Groove Double Serpentine; Premium OEM Replacement Balancer |
| 1997 | Dodge | Avenger | 2.0L | L4 | N/A | Premium OEM Replacement Balancer |
| 1997 | Mitsubishi | Eclipse | 2.0L | L4 | N/A | To 06/1997; Premium OEM Replacement Balancer |
| 1997 | Mitsubishi | Eclipse | 2.4L | L4 | N/A | 5 Groove Double Serpentine; Premium OEM Replacement Balancer |
| 1996 | Chrysler | Sebring | 2.0L | L4 | N/A | Premium OEM Replacement Balancer |
| 1996 | Dodge | Avenger | 2.0L | L4 | N/A | Premium OEM Replacement Balancer |
| 1996 | Mitsubishi | Eclipse | 2.0L | L4 | N/A | Premium OEM Replacement Balancer |
| 1996 | Mitsubishi | Eclipse | 2.4L | L4 | N/A | 5 Groove Double Serpentine; Premium OEM Replacement Balancer |
| 1995 | Dodge | Avenger | 2.0L | L4 | N/A | Premium OEM Replacement Balancer |
| 1995 | Mitsubishi | Eclipse | 2.0L | L4 | N/A | Premium OEM Replacement Balancer |
| 1981 | Dodge | D50 | 2.0L | L4 | N/A | Premium OEM Replacement Balancer |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.