PRODUCT DETAILS
NGK Standard marine spark plugs have alumina silicate in its ceramic insulator, copper core and is triple sealed to help dissipate the heat. Comes with a gasket seal, removable terminal nut, resistor and ground electrode.
Replaces OEM 0771776.
BR7HS NGK Spark Plug 4122
Resistance: 5000 Ohms
Ground Electrode Tip Design: Standard
Ground Configuration: Standard
Ground Electrode Core Material: Nickel Core
Center Electrode Core Material: Copper Core
Center Electrode Tip Material: Nickel
Pre-Gap Size: .028 in
Ground Electrode Quantity: 1
Hex Size: 13/16 in
Insulator Height: 55.00 mm
Manufacturer Heat Range: 7
Seat Type: Flat
Reach: .5 in
Thread Diameter: 14.00 mm
Ngk Spark Plug - BR7HS/4122 (10) is equivalent to parts:
- BR7-HS000-00-00 Yamaha Marine
- 9482-00277 Suzuki Marine
- 771776 Evinrude Johnson OMC BRP
- 4122 NGK
- 896329874 Mercury Marine
- 821916 Mercury Marine
- 33896329874 Mercury Marine
- 33821916 Mercury Marine
SHIPPING & DELIVERY
Delivery & Returns Policy
Delivery
Standard Delivery
- £6: Royal Mail Tracked 24 Service
- £3.99: Large Letter - Royal Mail 1st Class Post (Untracked)
We offer free delivery on all orders over £150 (excludes outboard engines).
Orders placed before 1:00 PM (Monday-Friday) are usually dispatched the same working day.
Most parcels are delivered within 24 hours, but please allow extra time for courier delays that may occur outside our control.
For outboard engines, please contact us for a delivery quote.
Important: Please ensure your shipping address is correct before completing checkout. SSI Marine is not responsible for parcels sent to an incorrect address provided by the buyer.
Tracking Your Order
Once your order has been dispatched, you will receive a tracking number via email (after 5 PM on the day of dispatch).
Tracking is available only for parcels sent via Royal Mail Tracked 24.
Large Letter orders are sent via Royal Mail 1st Class Post (untracked).
Returns
We accept returns of unused and undamaged items within 30 days of purchase.
Returned items must be in sellable condition and include the original packaging.
Please do not tape, label, or write directly on the product's original box.
Important: Do not return items in their original product boxes only, they must be placed inside a protective outer box or bag. Parcels returned like the example below will be subject to a 20% restocking fee.
Return shipping costs are the customer's responsibility.
Please include your order details and reason for return inside the parcel.
Refunds
Refunds are issued for the item purchase price only (shipping costs are non-refundable).
All refunds will be made using the same payment method as your original order.
Items returned in poor condition or without proper packaging may incur a 20% restocking fee.










