SKU: 17182495142

585836101 Handheld Blower Ignition Module Coil - Fits Husqvarna 125B 125BVX 125BX - Replaces 545108101 545108101

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Description

585836101 Handheld Blower Ignition Module Coil - Fits Husqvarna 125B 125BVX 125BX - Replaces 545108101 545108101585836101 Ignition Module Coil for Husqvarna and Ryobi Handheld Blowers Key Features Precision Electronic Ignition: Engineered to provide a consistent, high intensity spark across the entire RPM range, ensuring reliable starting and smooth engine performance. Optimized Ignition Mapping: Specifically calibrated for small displacement 2 stroke blower engines, improving fuel efficiency and reducing emissions during high speed operation. Weather Shielded

585836101 Ignition Module Coil for Husqvarna and Ryobi Handheld Blowers

Key Features

  • Precision Electronic Ignition: Engineered to provide a consistent, high-intensity spark across the entire RPM range, ensuring reliable starting and smooth engine performance.
  • Optimized Ignition Mapping: Specifically calibrated for small-displacement 2-stroke blower engines, improving fuel efficiency and reducing emissions during high-speed operation.
  • Weather-Shielded Encapsulation: The internal circuitry is fully potted in high-grade, heat-resistant epoxy to protect against vibration, moisture, and debris common in lawn care environments.
  • Reinforced Spark Plug Lead: Features a high-tension wire with a durable silicone boot designed to resist cracking and electrical "arching" against the engine cylinder.
  • Direct Bolt-On Fitment: Designed to the exact mounting specifications of the original factory module, facilitating a straightforward "drop-in" replacement without modifications.

Replaces / Cross-Reference Part Numbers

  • Husqvarna: 585836101, 545108101, 5451 08 101
  • Homelite / Ryobi: 300953003, 300953001, 984883001, 984882001
  • Other: 850108101

Compatibility & Fitment

This ignition coil is a universal replacement for several popular handheld blower platforms. Key compatible models include:

  • Husqvarna: 125B, 125BVX, 125BX (Standard and E-series models).
  • Ryobi: Fits various 25cc and 26cc handheld blowers (e.g., RY08510, RY08544, RY08548).
  • Homelite: Compatible with many 26cc "Blower/Vac" models (e.g., UT08514, UT08544, UT08546).
  • Note: Always verify your original coil's mounting hole spacing and wire orientation, as these models occasionally used different engine suppliers.

When to Replace

  • No Spark Condition: The most common failure; the engine will not start despite having fresh fuel and a clean spark plug.
  • Stalling When Hot: The blower runs perfectly for 5–10 minutes but dies as the engine reaches operating temperature and won't restart until cooled (thermal failure).
  • Misfiring or "Stuttering": The engine hesitates at full throttle or has an inconsistent idle, indicating the coil is struggling to maintain a steady pulse.
  • Visible Insulation Damage: The spark plug wire is frayed, melted, or showing signs of being chewed by rodents, leading to a grounded ignition circuit.
  • Intermittent Kill Switch Issues: If the engine refuses to shut off or dies unexpectedly, the kill switch terminal on the coil may be shorting internally.

Installation & Timing Tips

  • The "Business Card" Gap: To ensure the strongest spark, the air gap between the coil legs and the flywheel magnets should be approximately 0.010" to 0.012". Use a standard business card as a gauge during installation.
  • Check the Ground Path: Ensure the mounting surfaces on the engine block and the coil legs are free of rust and oil. The coil grounds through its mounting bolts; a weak ground equals a weak spark.
  • Kill Switch Wiring: Be careful when attaching the small spade terminal for the stop wire. If this wire is pinched against the metal housing, the engine will never start.
  • Flywheel Magnet Cleanup: While the starter cover is off, use a rag to wipe metal shavings or sap off the flywheel magnets to ensure the strongest possible magnetic induction.
  • Spark Plug Health: It is highly recommended to install a fresh NGK BPMR7A (or equivalent) spark plug when replacing the coil to ensure the new module isn't stressed by a fouled plug.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 17182495142

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A
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Amazon Customer
Belleville, US
★★★★★ 2
Not compatible with Honda CRV 2023
Style: 1.5L, Style: 1.5L
Pretty disappointed that the description did not match what my car actually needed. THIS IS NOT COMPATIBLE WITH A HONDA 2023 CRV Engine Air filter… Just glad the cabin air filter worked. Having to buy another one… The image attached is what I needed to replace.
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Reviewed in the United States on January 18, 2026
S
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Sam E
Phoenix, US
★★★★★ 5
Perfect fit and high quality.
Size: (Pack of 1)
Good product, not much to say. The product arrived quickly, looks to be of high quality construction, fit perfectly and took me only a couple of minutes to install. I love it when a product is no frills and delivers as advertised. I've used various filters from K&N before and have always had very good success with them so I will be buying more of these for sure when the time comes.
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Reviewed in the United States on November 9, 2025
J
Verified Purchase
john A.
Birmingham, US
★★★★★ 5
Better than most.
Size: (Pack of 1)
Looks good, perfect fit.
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Reviewed in the United States on May 25, 2026
W
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Willy Bill
San Leandro, US
★★★★★ 5
Great Filter
Size: (Pack of 1)
This fits fine. Just wish it was a little easier to change.
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Reviewed in the United States on April 26, 2026
E
Verified Purchase
em
Dallas, US
★★★★★ 5
More power, slightly lower (8%) MPG.
Size: (Pack of 1)
Installed on a 2.0 liter Subaru Impreza. I drive up/down the I5 in california 3-4 times a year. For those that don't know there is about a 200 mile flat stretch where everyone runs at 75-85mph. With various filters (FRAM, BOSCH, Subaru OEM), I would consistently get 29.8 mpg. Once I installed the K&N, I could feel the car pulling with a bit more power, but I noticed that I was getting about 27.5 mpg. Totally worth it as the impreza is a little under powered and I don't drive many miles (6k/year) but if you are putting a lot of miles on your car, you may want to have more mpg.
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Reviewed in the United States on May 24, 2026

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