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Description
2-Pack BPR4ES Replacement Spark Plugs | Replaces NGK BPR4ES
The 2-Pack BPR4ES Replacement Spark Plug Set is designed for compatible lawn mowers, commercial mowing equipment, small engines, and outdoor power equipment that specify an NGK BPR4ES-style resistor spark plug.
Featuring a nickel-alloy electrode, copper-core construction, and projected-tip design, these plugs provide dependable ignition, effective heat transfer, and consistent engine performance.
Quantity: 2 Spark Plugs
Replacement: NGK BPR4ES
Features That Make a Difference
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2-pack replacement spark plug set
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Replaces NGK BPR4ES
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Compatible with equipment requiring BPR4ES specifications
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14 mm thread diameter
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1.25 mm thread pitch
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19 mm / 3/4" reach
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13/16" / 21 mm hex
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Gasket-style seat
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Resistor-type spark plug
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Projected-tip design
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Nickel-alloy electrode
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Copper-core center electrode
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NGK-equivalent Heat Range 4
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Typical gap: 0.031" / 0.8 mm
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Designed for dependable ignition and combustion
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Suitable for select lawn mower and small-engine applications
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Includes 2 replacement spark plugs
Specifications
| Specification | Details |
|---|---|
| Product Type | Replacement Spark Plug |
| Replacement Plug | NGK BPR4ES |
| NGK Reference | BPR4ES / 7222 |
| Quantity | 2 |
| Thread Diameter | 14 mm |
| Thread Pitch | 1.25 mm |
| Reach | 19 mm / 3/4" |
| Hex Size | 13/16" / 21 mm |
| Seat Type | Gasket |
| Electrode Material | Nickel Alloy |
| Core Material | Copper |
| Resistor | Yes |
| Tip Style | Projected |
| Heat Range | 4 |
| Typical Gap | 0.031" / 0.8 mm |
| Application | Lawn Mower / Small Engine / Outdoor Power Equipment |
Reliable Small-Engine Ignition
The BPR4ES replacement spark plug is designed to provide a strong and consistent spark for proper combustion in compatible gasoline engines.
A properly operating spark plug helps support:
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Dependable engine starting
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Smooth engine operation
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Consistent combustion
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Stable idle
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Proper throttle response
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Efficient engine performance
Worn or fouled spark plugs can contribute to difficult starting, misfires, rough running, and reduced engine performance.
Copper-Core & Nickel Electrode Design
The copper-core center electrode helps transfer heat away from the firing tip while maintaining good electrical conductivity.
Nickel-alloy electrodes provide dependable durability for normal small-engine operating conditions.
This combination helps provide:
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Efficient heat transfer
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Reliable spark performance
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Consistent ignition
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Resistance to normal electrode wear
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Dependable service life
Resistor-Type Spark Plug
The BPR4ES is a resistor-style spark plug, designed to help reduce radio-frequency and electrical interference generated by the ignition system.
This is particularly useful on modern outdoor power equipment equipped with electronic ignition systems and other electrical components.
Designed for Lawn Mowers & Outdoor Power Equipment
BPR4ES-style spark plugs are commonly used in select:
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Commercial zero-turn mowers
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Stand-on mowers
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Riding lawn mowers
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Walk-behind mowers
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Lawn tractors
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Small gasoline engines
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Generators
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Garden equipment
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Outdoor power equipment
Compatible applications may include select equipment from manufacturers such as:
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Scag
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Toro
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Wright
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John Deere
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Kawasaki-powered equipment
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Other equipment specifying BPR4ES
Not every model from these manufacturers uses BPR4ES. Always verify your engine model and original spark plug number before ordering.
BPR4ES Spark Plug Dimensions
For proper fitment, the replacement plug must match the engine's required specifications.
The BPR4ES configuration uses:
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Thread Diameter: 14 mm
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Thread Pitch: 1.25 mm
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Reach: 19 mm / 3/4"
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Hex: 13/16" / 21 mm
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Seat: Gasket
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Resistor: Yes
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Tip: Projected
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Heat Range: 4
Using a spark plug with an incorrect thread, reach, heat range, or seat configuration can affect engine performance or cause engine damage.
Spark Plug Gap
The typical BPR4ES gap specification is approximately:
0.031" / 0.8 mm
However, spark plug gap requirements can vary depending on the engine manufacturer and application.
Always check your equipment or engine owner's manual and adjust the spark plug gap to the manufacturer's specification before installation.
When to Replace Your Spark Plugs
Spark plugs should be inspected and replaced when they become:
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Worn
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Fouled
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Carbon-covered
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Oil-fouled
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Corroded
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Damaged
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Difficult to gap correctly
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Unable to provide consistent ignition
Possible symptoms of worn spark plugs include:
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Hard starting
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Engine misfires
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Rough idle
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Loss of power
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Poor throttle response
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Increased fuel consumption
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Uneven engine operation
Replacing both spark plugs together is especially convenient for compatible V-twin engines using two plugs.
Convenient 2-Pack
This package includes two BPR4ES replacement spark plugs, making it ideal for servicing compatible twin-cylinder engines or keeping an extra replacement plug available.
The 2-pack configuration is useful for:
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V-twin mower engines
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Commercial mower maintenance
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Preventive maintenance
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Landscaping fleets
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Repair shops
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Seasonal tune-ups
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Spare-parts inventory
Installation & Maintenance
Before replacing the spark plugs:
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Turn off the engine and allow it to cool completely.
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Remove the ignition key.
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Disconnect the spark plug wires.
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Clean dirt and debris from around each spark plug.
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Remove the existing plugs using the correct socket.
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Verify that the original plug specification matches BPR4ES.
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Check and adjust the replacement plug gap according to the engine manufacturer's specifications.
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Carefully thread each spark plug into the cylinder head by hand.
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Tighten according to the engine manufacturer's torque specification.
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Reconnect the spark plug wires securely.
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Start the engine and verify proper operation.
Never install a spark plug based only on physical appearance. Always verify the engine manufacturer's specified plug type, reach, heat range, and gap.
Important Product Information
Product: BPR4ES Replacement Spark Plug
Quantity: 2-Pack
Replaces: NGK BPR4ES
NGK Reference: 7222
Thread: 14 mm x 1.25 mm
Reach: 19 mm / 3/4"
Hex: 13/16" / 21 mm
Seat: Gasket
Resistor: Yes
Heat Range: 4
Typical Gap: 0.031" / 0.8 mm
Application: Compatible Lawn Mowers & Small Engines
The 2-Pack BPR4ES Replacement Spark Plug Set provides a convenient maintenance solution for compatible lawn mower and outdoor power equipment engines requiring the BPR4ES spark plug configuration.
Why Buy from Barry’s Power Equipment?
Barry’s Power Equipment provides quality OEM and aftermarket maintenance parts for commercial lawn, landscaping, and outdoor power equipment.
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Quality replacement spark plugs
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Commercial mower maintenance parts
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Small-engine tune-up components
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Ignition and engine parts
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Competitive Pricing
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Fast Shipping
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Expert Customer Support
Keep your compatible mower or small engine starting and running properly with this 2-Pack BPR4ES Replacement Spark Plug Set.
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