The Wacker Neuson 158644 Ignition Coil is a genuine OEM ignition coil designed for the BS50-4s, BS60-4s, BS50-4, and BS60-4 series vibratory rammers. As a direct OEM replacement, part 158644 is sourced from Wacker Neuson to ensure it meets the exact electrical specifications of the original component. This coil fits an extensive range of BS-series rammer configurations, including standard, high-altitude, and EU-spec variants across multiple machine numbers. When your rammer won't start or runs erratically, replacing the ignition coil with the correct OEM part gets the machine back to producing consistent, reliable compaction force in trenches and cohesive soil applications.
Key Features
- Correct Output Specification — Genuine OEM ignition coil wound to the exact resistance and output voltage required by BS-series four-stroke rammer engines, ensuring a strong, consistent spark at every compression cycle.
- Direct Drop-In Replacement — Matches the original mounting points and connector configuration on BS50-4, BS50-4s, BS60-4, and BS60-4s rammers, so installation follows the standard service procedure without modification.
- Broad BS-Series Fitment — Covers a wide range of BS50-4s, BS60-4s, BS50-4, and BS60-4 vibratory rammer variants including standard, high-altitude, and EU-spec models, as well as select VP-series vibratory plates.
- Restored Starting Performance — A failed or weakened ignition coil causes hard starting, misfires, or complete no-start conditions; replacing it with part 158644 restores clean ignition timing and full engine power for effective trench and cohesive soil compaction.
- Fuel System Safety Compliance — A correctly firing ignition coil prevents unburned fuel from accumulating in the cylinder or exhaust, reducing the risk of backfires and keeping combustion within safe operating parameters.
The ignition coil generates the high-voltage electrical pulse that fires the spark plug at precisely the right moment in the engine's compression cycle. On a four-stroke rammer engine like those found in the BS50-4 and BS60-4 series, a healthy ignition coil is what translates battery or magneto-generated current into a spark strong enough to ignite the air-fuel mixture reliably under load. When the coil degrades — through heat cycling, vibration fatigue, or insulation breakdown — the spark weakens or disappears entirely, resulting in hard starting, rough running, or a complete no-start condition that stops compaction work until the coil is replaced.
Part Details
| Part Number | 158644 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Ignition Coil |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Vibratory Rammer with 280mm/11 in Shoe | BS50-4s | 5000620908, 5000620322, 5000620071, 5000620078, 5200000679, 5200000644, 5200000662, 5200000680 |
| BS60 -4s RMR,11 PL SHOE,HA 42 | BS60-4s | 5000620387, 5000620909, 5000620323, 5000620073, 5000620072, 5000620563, 5000620820, 5200000647, 5200000648, 5200000667, 5200000668, 5200000683, 5200000674, 5200000675, 5200011110, 5200011111 |
| Four-cycle Rammer,280mm/11in S hoe | BS60-4s EU | 5000620388, 5000620074, 5000620483, 5000620813, 5000620812, 5000620819, 5000620816, 5200003883, 5200004239 |
| Four-stroke Vibratory Rammer, 280mm/11in Shoe | BS50-4s EU | 5000620811 |
| Four-cycle Vibratory Rammer, 2 20mm/11in Shoe | BS50-4 | 5000620077, 5000620108, 5000009386 |
| Four-stroke Vibratory Rammer, 280mm/11in Shoe | BS60-4 | 5000620109, 5000620110, 5000009340, 5000620000, 5000620051, 5200022984 |
| VP1030R-VIBROPLATE | VP1030R | 5000008702, 5000009504 |
| 280/11in Shoe, Vibratory Ramme r | MS54 | 5200008223, 5200013518 |
| Vibratory Rammer with 280mm/11 in Shoe | BS50-4HO EU | 5000620818 |
| Vibratory Soil Plate, 40 kN | VP40H | 5000009535 |
| Vibratory Rammer, 280mm/11in S hoe | BS500-4 | 5000009329 |
| Vibratory Rammer, 280mm/11in S hoe | BS600-4 | 5000009331 |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
