The Multiquip 1213202S Spark Plug 28Hp Str46Sp is a genuine OEM ignition component designed for HTN27K and HTN28K Whiteman ride-on mechanical power trowels. Sourced directly from Multiquip, this spark plug is an exact match for the 28HP engine configuration found on these machines, ensuring correct heat range, thread pitch, and electrode gap right out of the box. Confirmed fitment for HTN27K and HTN28K models makes 1213202S the straightforward choice when servicing your trowel's ignition system.
Key Features
- Correct Heat Range for the 28HP Engine — Engineered to the precise thermal specification required by the engine on HTN27K and HTN28K trowels, preventing pre-ignition and fouling.
- Genuine OEM Component — Supplied by Multiquip as an original equipment part, matching the electrode material, gap, and thread spec of the factory-installed plug.
- Direct-Fit for HTN27K and HTN28K — Threads directly into the engine head with no gap adjustment or modification needed, simplifying routine tune-up work.
- Consistent Ignition Performance — A properly specified spark plug sustains clean combustion across the power band, supporting smooth blade speed and consistent trowel output on the finishing deck.
- Fuel System Safety Compliance — Using the correct heat-range plug for this engine reduces the risk of misfires, backfires, and unburned fuel entering the exhaust — important on an operator-attended ride-on machine.
A spark plug initiates combustion by delivering a timed electrical spark across its electrode gap to ignite the air-fuel mixture in the engine cylinder. On ride-on trowels like the HTN27K and HTN28K, the engine must deliver consistent power output to maintain blade speed and machine traction — a worn or incorrect plug causes misfires, rough idling, hard starts, and loss of power that directly affects finishing quality. Replacing the spark plug at the recommended service interval with the correct OEM part keeps the ignition system firing reliably and protects against accelerated wear in the combustion chamber.
Part Details
| Part Number | 1213202S |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Spark Plug 28Hp Str46Sp |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Ride-On Power Trowels | HTN27K |
| Whiteman Ride-On Power Trowels | HTN28K |
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.
