Quick Take
When your 50cc to 125cc ATV, dirt bike, or scooter loses spark, won't crank, or has suspect wiring, you face two very different fixes. The four products here split into two approaches: a complete electrics package that replaces the stator coil, CDI, and wiring harness, and two 12V replacement batteries from ExpertPower for machines that just need cranking power. Listed prices span from $22.99 for the YTX4L-BS battery to $50.32 for the Complete Electrics harness. The right choice depends on whether your problem is battery-related or deeper in the electrical system.
Listed Price Comparison
| Product | Listed Price | Price Bar |
|---|---|---|
| Complete Electrics Stator Coil CDI Wiring Harness for 4 Stroke ATV KLX 50cc | USD 50.32 | |
| Complete Electrics Stator Coil CDI Wiring Harness for 4 Stroke ATV KLX 50cc (OEM-3047) | USD 50.32 | |
| YTX5L-BS Replacement for Polaris Outlaw Scrmblr ATV Battery | USD 23.99 | |
| YTX4L-BS High Performance Motorcycle Scooter ATV Battery, 120 Cold Cranking Amps | USD 22.99 |
Decision Matrix
| What you need | Best-fit option |
|---|---|
| Full electrical replacement for a Chinese-made upright-engine 50cc-125cc ATV or quad | Complete Electrics Stator Coil CDI Wiring Harness for 4 Stroke ATV KLX 50cc |
| The same harness with the OEM-3047 part number explicitly shown | Complete Electrics Stator Coil CDI Wiring Harness (OEM-3047) |
| Drop-in battery for Polaris Outlaw or Scrambler | YTX5L-BS Replacement for Polaris Outlaw Scrmblr ATV Battery |
| Compact 12V battery with 120 cold cranking amps | YTX4L-BS High Performance Motorcycle Scooter ATV Battery |
Product Notes
Complete Electrics Stator Coil CDI Wiring Harness for 4 Stroke ATV KLX 50cc
This is the comprehensive route for rebuilding the electrical side of a small four-stroke ATV or quad. The harness from MICTUNING-OEM includes the stator coil, CDI, and wiring, and it is designed for most Chinese-made electric-start upright engines from 49cc to 125cc, as well as Kawasaki KLX, Coolster, go karts, and similar machines. It carries the highest listed price in this set. The catch: it is not for GY6 bikes or other 200cc to 250cc Zongshen or Lifan machines with different stators or CDIs, so confirm your engine type before choosing this part.
Complete Electrics Stator Coil CDI Wiring Harness for 4 Stroke ATV KLX 50cc (OEM-3047)
This version of the harness matches the same OEM-3047 part and label, with model and part number details included. If you are comparing the two harness options, they are the same part at the same listed price. The same fit guidance applies: upright 49cc-125cc engines, not GY6-style 200cc-250cc machines. Pick this one if you want the details that explicitly show OEM-3047.
YTX5L-BS Replacement for Polaris Outlaw Scrmblr ATV Battery
This ExpertPower battery is a 12V 5Ah sealed lead acid unit rated at 125 cold cranking amps, sized at 4.45 x 2.72 x 4.13 inches. It is maintenance-free with a long shelf life and high discharge rate, and nuts and bolts are included. It replaces the YTX5L-BS family, including CTX5L-BS, GTX5L-BS, ETX5L-BS, and PTX5L-BS, and is a match for Polaris Outlaw and Scrambler models. If your machine uses that battery family, this is a straightforward swap. The tradeoff: it is a compact 5Ah battery for machines designed for that size.
YTX4L-BS High Performance Motorcycle Scooter ATV Battery, 120 Cold Cranking Amps
This ExpertPower battery is the lowest-priced option in this comparison. It is a 12V 4Ah unit with 120 cold cranking amps and dimensions of 4.44 x 2.75 x 3.34 inches, making it slightly more compact than the YTX5L-BS. It is maintenance-free with a long shelf life, and nuts and bolts are included. The attribute details include a California Prop 65 warning, which states that the product contains a chemical known to the State of California to cause cancer and birth defects or other reproductive harm. If you need a compact 12V battery for a motorcycle, scooter, or ATV, this is the lowest-cost pick here.
Final Recommendation by Use Case
Match the part to the symptom. If your machine has no spark or damaged wiring, the Complete Electrics harness bundles the stator coil, CDI, and wiring in one replacement set for small upright-engine ATVs. If the problem is simply a weak battery, the YTX5L-BS offers a 5Ah drop-in for Polaris Outlaw and Scrambler models, while the YTX4L-BS provides a slightly smaller 4Ah battery at the lowest listed price. Choose the harness for full electrical rebuilds and the batteries for no-crank situations.
