The ALM Manufacturing RCJ7Y Spark Plug is a replacement ignition spark plug suitable for a wide range of compatible petrol-powered garden machinery and small engines, including selected Einhell brushcutters, chainsaws, garden vacuums, grass trimmers and hedge trimmers.

Designed to replace a worn, damaged or faulty spark plug, the ALM RCJ7Y helps maintain the ignition system of compatible petrol engines.

A spark plug plays an essential role in petrol engine operation by producing the electrical spark needed to ignite the fuel-air mixture inside the combustion chamber.

Over time, spark plugs can become worn, fouled or damaged, potentially contributing to difficult starting, uneven running or reduced engine performance.

The ALM RCJ7Y is suitable for specified Einhell models, including GH-BC 25 AS, GH-BC 43 AS and GH-PT 2538 AS, and is listed with numerous cross-reference part numbers from leading spark plug manufacturers.

Important identification note: The ALM RCJ7Y Spark Plug is marked “ALM 7” on the spark plug itself. This is the expected marking for this ALM replacement part.

Whether you're servicing a petrol grass trimmer, replacing a chainsaw spark plug or maintaining a compatible Einhell garden machine, the ALM RCJ7Y offers a practical replacement ignition component.

Key Benefits

• Genuine ALM Manufacturing replacement spark plug

• ALM part number RCJ7Y

• Marked ALM 7 on the spark plug

• Suitable for many compatible Einhell petrol garden machines

• Suitable for selected petrol brushcutters

• Suitable for compatible chainsaws

• Suitable for compatible grass trimmers

• Suitable for compatible hedge trimmers

• Suitable for compatible garden vacuums

• Suitable for other small petrol engines requiring this spark plug specification

• Useful for replacing worn or fouled spark plugs

• Practical for routine petrol engine servicing

• Cross-references multiple established spark plug part numbers

Important: RCJ7Y Is Marked ALM 7

Although the product part number is ALM RCJ7Y, the marking printed on the spark plug is:

ALM 7

This is an important detail when identifying the replacement part.

If you receive an ALM RCJ7Y spark plug marked ALM 7, the marking corresponds to the ALM product described here.

Einhell Replacement Spark Plug

The ALM RCJ7Y is suitable for many compatible Einhell petrol garden machines, including the following specified models:

• Einhell GH-BC 25 AS – Article number 34.019.53

• Einhell GH-BC 30/1

• Einhell GH-BC 43 AS – Article number 34.019.73

• Einhell GH-PT 2538 AS – Article number 34.018.50

The model and article numbers are useful when checking compatibility with your existing machine.

Always confirm the correct spark plug specification before fitting.

Spark Plug for Petrol Brushcutters & Grass Trimmers

The ALM RCJ7Y is suitable for compatible petrol brushcutters and grass trimmers requiring this spark plug specification.

A correctly functioning spark plug is important for reliable ignition and consistent engine operation.

Replacing a worn or fouled plug is a common part of routine garden machinery maintenance.

Chainsaw Replacement Spark Plug

The ALM RCJ7Y can also be used in compatible petrol chainsaws requiring the corresponding spark plug type.

Spark plugs should be inspected during regular chainsaw servicing, particularly if the engine becomes difficult to start or runs unevenly.

Always check the chainsaw manufacturer's spark plug recommendations before ordering.

Hedge Trimmer & Garden Vacuum Spark Plug

The ALM RCJ7Y is also suitable for selected petrol hedge trimmers and garden vacuums.

Its compatibility depends on the engine's required spark plug specification rather than the machine category alone.

Spark Plug Cross-Reference Numbers

The ALM RCJ7Y compares to the following spark plug references.

Autolite

• 2974

• 2984

• XST2974

Bosch

• WSR6F

Brisk

• PR15Y

Champion

• RCJ6Y

• RCJ7Y

• STK 852

Denso

• W20MP-U

• W22MPR-U

• STK 6023

Einhell

• 340186501134

General Motors

• 5613726

Iskra

• FSC75CPR

Motorcraft

• A22NX

• STK 107

NGK

• BPMR6A

• BPMR7A

• STK 107

Torch

• L6RTC

• L7RTC

• L8RTC

• L8RTF

Compatibility Note: These are comparison references supplied for the ALM RCJ7Y. Spark plugs may differ in their technical specifications, so always verify the correct plug type, dimensions, heat range and electrode gap for your particular engine before fitting.

When to Replace a Petrol Engine Spark Plug

A spark plug may need inspecting or replacing if your garden machine experiences:

• Difficulty starting

• Intermittent ignition

• Uneven engine running

• Engine misfiring

• Visible electrode wear

• Heavy carbon deposits

• Damaged ceramic insulation

• Corrosion or other visible deterioration

These symptoms can have several causes, so replacing the spark plug may not resolve every starting or running problem.

How to Fit

1. Switch off the engine and allow it to cool completely.

2. Disconnect the spark plug cap.

3. Clean any dirt or debris from around the existing spark plug.

4. Remove the old spark plug using a suitable spark plug socket.

5. Confirm that the ALM RCJ7Y is the correct replacement for your engine.

6. Check the electrode gap against the engine manufacturer's specification.

7. Carefully start threading the replacement plug by hand to avoid cross-threading.

8. Tighten the spark plug to the manufacturer's recommended torque.

9. Reconnect the spark plug cap securely.

10. Check that all components are correctly fitted before starting the engine.

Important: Do not overtighten the spark plug or alter the electrode gap without reference to the engine manufacturer's instructions.

Compatible Einhell Models

• GH-BC 25 AS – 34.019.53

• GH-BC 30/1

• GH-BC 43 AS – 34.019.73

• GH-PT 2538 AS – 34.018.50

Ideal For

• Einhell GH-BC 25 AS servicing

• Einhell GH-BC 30/1 maintenance

• Einhell GH-BC 43 AS spark plug replacement

• Einhell GH-PT 2538 AS repairs

• Compatible petrol chainsaw servicing

• Petrol brushcutter maintenance

• Grass trimmer ignition repairs

• Hedge trimmer spark plug replacement

• Garden vacuum maintenance

• Small petrol engine servicing

• Replacing worn, damaged or fouled spark plugs

Product Information

Brand: ALM Manufacturing
Product: Spark Plug
Part Number: RCJ7Y
Marking on Spark Plug: ALM 7
Type: Replacement petrol engine ignition spark plug
Compatible Brand: Einhell and other compatible small petrol engines
Specified Einhell Models: GH-BC 25 AS, GH-BC 30/1, GH-BC 43 AS, GH-PT 2538 AS
Suitable Machinery: Compatible brushcutters, chainsaws, garden vacuums, grass trimmers, hedge trimmers and other small petrol engines
Autolite Comparisons: 2974, 2984, XST2974
Bosch Comparison: WSR6F
Brisk Comparison: PR15Y
Champion Comparisons: RCJ6Y, RCJ7Y, STK 852
Denso Comparisons: W20MP-U, W22MPR-U, STK 6023
Einhell Comparison: 340186501134
General Motors Comparison: 5613726
Iskra Comparison: FSC75CPR
Motorcraft Comparisons: A22NX, STK 107
NGK Comparisons: BPMR6A, BPMR7A, STK 107
Torch Comparisons: L6RTC, L7RTC, L8RTC, L8RTF
Primary Use: Replacing worn or faulty spark plugs in compatible petrol-powered garden machinery and small engines.

WEEE Recycling Producer Registration Number:12889

How do I return my old product to be recycled?

You can return your old product to MyDIY. Waste Electrical and Electronic Equipment (WEEE) is taken back free of charge on a one-for-one, like-for-like basis. Waste batteries including rechargeable batteries are taken back free of charge. You are not obliged to make any purchase when returning old batteries. Each local authority must also accept household WEEE and small batteries free of charge at its recycling facilities. All WEEE and waste batteries must be recycled and should not be placed in any of your household wheelie bins. Make sure you always recycle all your old electrical goods and batteries.

What products can I recycle for free?

You can return anything that is electricaly powered or battery powered. Even your old bicycle lamps can be recycled!.

Do you take back used batteries?

Yes we do. The batteries that we accept are AA, AAA, C or D, powertool batterys and also the flat batteries that are found in watches and toys. Unfortunately we do not accept back any Industrial or car batteries.

Do I need to have made a purchase at MyDIY.ie?

No you don't. You can recycle any of the above items at our store in Inchicore Dublin 8, even if you have not made a purchase with us.

Will you collect my old product?

Yes, but we must be notafied within 14 days of purchase date. You can still arrange to have your old appliance recycled free of charge. Simply bring it back to our Inchicore store and we will ensure that it is disposed of in an environmentally friendly manner.

How much will it cost?

There is no charge to return products to any of our warehouses.

Why should I recycle with MyDIY?

We will ensure that your old product is disposed of correctly to reduce the potentially harmful effects caused on the environment and to conserve natural resources. Further information can be found on weeeireland.ie.

EMC (Environmental Management Cost) Included in the purchase price. 

Gas discharge lamps, LFLs and CFLs €0.15

LED lamps and luminaires €0.05

Large appliances €5.00

Information

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• Most orders ship on a 24-hour courier service (2 working days).

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Customer Service & Returns

• Great service as usual. Thanks

  5/5

  Written by: Mr Hernon

  Date: 19/02/2019