Home / Petter Petrol Engine Spares / Petter A, A1 & W1 Engine Spares / Petter A1, A2, W1 and W2 Champion N21 Spark Plug

Petter A1, A2, W1 and W2 Champion N21 Spark Plug

 
(4 reviews)  

SKU
ChampN21
Quantity in stock
6 item(s) available
Weight
0.35 kgs
Our price:
£7.50
including VAT
Quantity (6 available)

Champion N21 long reach spark plugs for the well known Petter A1, A2, W1 and W2 petrol engines. For series 2 engines produced 1951 onwards.

A direct equivalent of the Lodge BL14 or NGK B4ES plugs used in these engines.

Manufacturer Champion
Part Number N21
Diameter 14mm
Reach 19mm (3/4")
Hex Size 20.8mm (13/16")
Seal Type Gasket Seat
Resistor No
Terminal Type M4 Thread
Electrode Material Standard Nickel
Projection Type Non Projected
Tip Configuration Single Electrode
Petter A1, A2, W1, W2 1951 Onwards Instruction Book
£4.00
Pepper Pot Style Exhaust Silencer 1" BSP
£24.00
Petter A, A1, AP & PA1 Composite Head Gasket
£14.40
Spark Plug Knurled Terminal Nut M4 Thread
£1.86
HT Lead Terminal
£2.16
7mm HT Ignition Lead Cable - Black Hypalon
£3.36
7mm Cotton Covered HT Ignition Lead Cable - Black
£4.99
Petter A, A1, AP & PA1 Manifold Gasket
£5.04
British Standard Fine (BSF) Nuts - Various Sizes
£0.17
Average customer rating:
 
(4 reviews)  



4 Most useful customer reviews (see all reviews):
Sean M Marsden
Feb 8, 2026
This customer purchased the item at our site.
As usual quick delivery as you would expect from a reputable company.

Advantages: Everything under one roof.

Disadvantages: Just a shame its not in my village.
Loading...Was the above review useful to you? Yes (0) / No (0)
Wynn Peate
Feb 25, 2025
This customer purchased the item at our site.
Excellent service. Well packaged. Will certainly do business again.
Loading...Was the above review useful to you? Yes (0) / No (0)
Walter Bannister
Jul 16, 2020
This customer purchased the item at our site.
Quick and easy purchase good web page
Loading...Was the above review useful to you? Yes (0) / No (0)
Brian Murrell
May 26, 2020
This customer purchased the item at our site.
First class service would recomend to anyone who asked about service many thanks.
Loading...Was the above review useful to you? Yes (0) / No (0)