Product Description:
Hawks Motorsports is pleased to offer our clients the following.
This new genuine OE harmonic balancer replaces the crankshaft-mounted damper on the listed LT4 applications. It serves the factory crankshaft damping and serpentine pulley arrangement. Match the vehicle VIN and existing drive configuration before ordering.
| Producer | GM Genuine Parts |
| Condition | New genuine OE |
| Product | Crankshaft harmonic balancer / vibration damper |
| Engine application | LT4 6.2L supercharged V8 in the listed vehicles |
| Drive belt type | Serpentine |
| Pulley groove quantity | 18 total grooves, as cataloged |
| Keyway | Yes |
| Outside diameter | 8.35 in / 212 mm |
| Inside diameter / bore | 1.50 in / 38 mm |
| Catalog depth | 1.14 in / 29 mm |
| GM packaged weight | 15.71 lb / approximately 7.13 kg |
| GM package dimensions | 9.50 L x 9.38 W x 8.38 H in |
| Sale quantity | One balancer assembly |
| Year | Verified application / required configuration |
|---|---|
| 2016 | Cadillac CTS-V; LT4 6.2L supercharged V8 |
| 2017 | Chevrolet Camaro ZL1; LT4 6.2L supercharged V8; Cadillac CTS-V; LT4 6.2L supercharged V8 |
| 2018 | Chevrolet Camaro ZL1; LT4 6.2L supercharged V8; Cadillac CTS-V; LT4 6.2L supercharged V8 |
| 2019 | Chevrolet Camaro ZL1; LT4 6.2L supercharged V8; Cadillac CTS-V; LT4 6.2L supercharged V8 |
| 2020 | Chevrolet Camaro ZL1; LT4 6.2L supercharged V8 |
| 2021 | Chevrolet Camaro ZL1; LT4 6.2L supercharged V8 |
| 2022 | Chevrolet Camaro ZL1; LT4 6.2L supercharged V8; Cadillac CT5-V Blackwing; LT4 6.2L supercharged V8 |
| 2023 | Chevrolet Camaro ZL1; LT4 6.2L supercharged V8; Cadillac CT5-V Blackwing; LT4 6.2L supercharged V8 |
| 2024 | Chevrolet Camaro ZL1; LT4 6.2L supercharged V8; Cadillac CT5-V Blackwing; LT4 6.2L supercharged V8 |
| 2025 | Cadillac CT5-V Blackwing; LT4 6.2L supercharged V8 |
| 2026 | Cadillac CT5-V Blackwing; LT4 6.2L supercharged V8 |
Confirm fit by VIN and the installed engine/accessory drive. The chart is limited to the exact GM catalog applications; a shared displacement or LT-series name does not establish compatibility with another vehicle or an engine swap.
- One new genuine OE crankshaft balancer assembly, part number 12713718
The component mounts at the front of the crankshaft. Its role is to damp crankshaft torsional vibration while providing the specified pulley arrangement.
Product dimensions are the cataloged outside diameter, bore and depth. The 1.14-inch depth is retained under its GM catalog label; it is not represented as a verified overall front-to-back assembly envelope.
The listed 15.71-pound weight and 9.50 x 9.38 x 8.38-inch dimensions are GM packaging specifications. The package is approximately 241.3 x 238.3 x 212.9 mm. A separate bare-component weight is not specified in the verified GM record.
Use the vehicle-specific service procedure and appropriate balancer removal and installation tools. Confirm crankshaft seating, keyway alignment and belt routing for the installed configuration.
Follow the specified fastening and tightening procedure for the exact application. Inspect belt alignment and adjacent clearance, then check operation after installation.
Which Camaro application is listed for this balancer?
The exact GM catalog lists 2017-2024 Camaro ZL1. Confirm the VIN and installed drive configuration.
Is 15.71 lb the bare balancer weight?
GM lists 15.71 lb under packaging. A separate unboxed component weight was not verified.
What are the dimensions the balancer size?
Component specifications are 8.35-inch outside diameter, 1.50-inch bore and 1.14-inch catalog depth.
Does the 18-groove entry specify an 18-rib replacement belt?
It is the cataloged total pulley groove quantity. Select each belt from the vehicle’s actual drive layout and service information.
Can I use the dimensions alone to select it for a swap?
Check the engine, crankshaft interface, pulley offset and complete accessory drive. Diameter and bore alone do not verify swap compatibility.
