Sierra
Complete Filter Assembly - Long Alloy Head - 3/8" NPT
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Sierra
Complete Filter Assembly - Long Alloy Head - 3/8" NPT
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Water separating fuel filters by SierraÆ available in a choice of corrosion resistant cast alloy or cast stainless steel head with 1/4" or 3/8" NPT inlet/outlets and short or long filter elements. Head assemblies are suitable for flow rates up to 500 LPH (125 US GPH) with 3/8" NPT ports and 420 LPH (105 US GPH) with 1/4" NPT ports.

Complete assembly includes filter cartridge, filter head and two brass plugs. Kits are also available on the two 1/4" NPT alloy head models which includes a complete assembly and an additional replacement filter. Changeable inlet and outlet direction is accommodated by the multi port head. The head and elements are configured to interchange with MercuryÆ and YamahaÆ OEM components. Filter elements are designed to meet OEM specifications.

21 micron filter element shaped with 70 pleats, provides high capacity 240 LPH (60 US GPH) fuel flow and fine filtration, will not separate oil from fuel and is therefore suitable for pre-mix 2 stroke fuel. Filters are not suitable for diesel fuel. The heavy wall filter canister with epoxy coating inside andpowder coating outside offers superior protection against corrosion.
An extra long filter element S18-7866 producing a flow rate of 360 LPH (90 US GPH), with 10 micron filtration is also available, to meet the requirements of YamahaÆ Motor Corporation for H.P.D.I 2 stroke and 4 stroke outboard engine applications. It can be used with any of the head assemblies listed below.
A filter element designed to meet JohnsonÆ/EvinrudeÆ OEM specifications is also available. This filter element S18-7846 does not fit the head brackets below and is suitable for use with JohnsonÆ/EvinrudeÆ OEM or equivalent heads only.

After ordering online, you will receive an automated email confirmation containing your order details. Your order will then be confirmed within a few minutes of placing your order.

It is our policy to ensure we deliver to our customers in a timely manner. In order to achieve this we use a range of freight companies depending on the size and weight of your order. In some instances we may use a number of carriers to get your products to you. For example, chain may come by road, some electronic equipment by air.


Most orders are shipped within 2 - 5 Days

Shipping rates

Orders delivered to Australian Post Codes under $499 attract an $18.00 shipping charge.

Orders of $499 or more ship free.*


For Remote areas and bulky items. If the cost to send is vastly different to our standard delivery costs, someone from our team will contact you prior to dispatch to arrange further payment or to issue a refund if you are not happy with the additional charges.

International orders will be charged at $0.00 initially and our staff will be in contact with a shipping quote. If the quote is not accepted the customer reserves the right to cancel their order and be refunded in full.

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