Sunline SL-1 Steel Front Countershaft Sprocket (14-Tooth / 428 Pitch) — Part #0981-428-14
$5.00
Sale price
$5.00
Regular price
$34.99
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Sunline SL-1 Steel Front Countershaft Sprocket (14-Tooth / 428 Pitch) — Part #0981-428-14
$5.00
Sale price
$5.00
Regular price
$34.99
Product Overview
The Sunline SL-1 Steel Front Countershaft Sprocket (Part #0981-428-14) is a premium, high-strength replacement engine drive gear distributed by Parts Unlimited and manufactured by Sunline. This heavy-duty 14-tooth front engine sprocket efficiently transfers raw mechanical power directly from the transmission countershaft to the rear wheel configuration via a standard 428-pitch drive chain. Built to meet strict original equipment manufacturer (OEM) dimensional boundaries, it functions as a highly precise, bolt-on replacement or standard gearing modification. Adjusting your countershaft configuration with this durable 14T gear layout optimizes final drive mechanics, sharpening low-end power delivery, acceleration response, and durability on small-displacement off-road platforms. [1, 2, 3, 4]
Technical Specifications
- Brand / Manufacturer: Sunline / Parts Unlimited
- Part Number: 0981-428-14 (Industry cross-ref profile: JTF274.14)
- Product Type: Drive Train / Front Countershaft Engine Sprocket
- Material: Case-hardened, high-grade SCM420 chromoly steel alloy for absolute core hardness and structural toughness.
- Finish: Natural raw treated steel finish featuring oil-immersion protective coatings.
- Size Profile: 14-Tooth (14T) configuration mapped specifically for a 428 final drive chain pitch.
- Weight Profile: Ultra-lightweight mass distribution at approximately 0.25 lbs (113 grams).
- Fitment Type: Direct OEM replacement slider matching original manufacturer spline clearances. [1, 2, 3, 4]
Key Features & Benefits
- SCM420 Chromoly Matrix: Fabricated from structural steel alloy that resists structural bending, chipping, and accelerated tooth breakdown under intense track conditions. [1, 2]
- Advanced Hobbed Profile: Every single tooth is precision hobbed and drilled rather than cheap surface-stamped. This achieves incredibly narrow assembly tolerances and fluid chain-roller engagement.
- Induction Thermal Hardening: Fully heat-treated to optimize face surface rigidity while maintaining a shock-absorbing internal core to withstand sudden acceleration stresses.
- Drivetrain Preservation: Engineered to maximize contact area along the transmission splines, preventing countershaft rounding and eliminating micro-wobbles that cause output shaft seal leaks.
Confirmed Motorcycle Fitment
This specific spline configuration and 428 chain pitch offset is a confirmed direct fit for the following Japanese small-displacement off-road platforms:
| Manufacturer | Model | Gearing Context | Chain Pitch / Teeth |
|---|---|---|---|
| Kawasaki | KLX125 / KLX125L | Stock Replacement / Gearing Shift | 428 Pitch / 14-Tooth |
| Suzuki | DR-Z125 / DR-Z125L | Stock Replacement / Gearing Shift | 428 Pitch / 14-Tooth |