JLM MARINE fuel pump kit for Mercury 3-cyl engines ensures proper fit during maintenance.
JLM MARINE 42909A4 kit for Mercury 4-cyl 115 HP outboards maintains reliable fuel delivery.
Close-up of kit components ready for diaphragm repair on Mercury outboards.
OEM-standard seals and gaskets included for a confident rebuild.
Ready-to-install packaging shows comprehensive parts for quick maintenance.
JLM MARINE fuel pump kit for Mercury 3-cyl engines ensures proper fit during maintenance.
JLM MARINE 42909A4 kit for Mercury 4-cyl 115 HP outboards maintains reliable fuel delivery.
Close-up of kit components ready for diaphragm repair on Mercury outboards.
OEM-standard seals and gaskets included for a confident rebuild.
Ready-to-install packaging shows comprehensive parts for quick maintenance.

JLM Marine 42909A4 Fuel Pump Kit for Mercury Mariner 3-Cyl 70-90 HP & 4-Cyl 115 HP Outboards

Precision replacement for Mercury Mariner outboards When it’s time to service your Mercury Mariner, the JLM MARINE...
Vendor: JLM MARINE
Availability: In stock
£30.07
£30.07
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JLM MARINE fuel pump kit for Mercury 3-cyl engines ensures proper fit during maintenance.

JLM Marine 42909A4 Fuel Pump Kit for Mercury Mariner 3-Cyl 70-90 HP & 4-Cyl 115 HP Outboards

£30.07
JLM MARINE fuel pump kit for Mercury 3-cyl engines ensures proper fit during maintenance.
JLM MARINE 42909A4 kit for Mercury 4-cyl 115 HP outboards maintains reliable fuel delivery.
Close-up of kit components ready for diaphragm repair on Mercury outboards.
OEM-standard seals and gaskets included for a confident rebuild.
Ready-to-install packaging shows comprehensive parts for quick maintenance.

JLM Marine 42909A4 Fuel Pump Kit for Mercury Mariner 3-Cyl 70-90 HP & 4-Cyl 115 HP Outboards

£30.07
Description
Description
x

Precision replacement for Mercury Mariner outboards

When it’s time to service your Mercury Mariner, the JLM MARINE 42909A4 Fuel Pump Kit offers a precise, OEM-focused option. This kit gathers all the essential components you need to refurbish a fuel pump, from seals to gaskets, with an eye toward straightforward installation and lasting performance. Expect a thoughtful, hands-on maintenance experience rather than a quick fix.

What’s covered by this kit

The kit is designed for Mercury models and replaces multiple references, including 42909A1, 42909A2, 42909A3, and 42909A4, plus Sierra 18-7818-1, Mallory 9-37754, and GLM 40280. It fits:

  • Mercury 3-cylinder engines: 70 HP, 75 HP, 80 HP, 90 HP
  • Mercury 4-cylinder engine: 115 HP

What’s inside and how it helps

  • All essential seals, gaskets, and diaphragm components included for refurbishing the fuel pump
  • Parts designed to meet or exceed OEM standards for reliable, long-lasting performance
  • Replacement coverage across common Mercury aftermarket references, reducing the need to source individual parts

Real-world use and benefits

On a weekend fishing trip or a day of coastal cruising, this kit can help you restore consistent fuel delivery and smooth engine operation. While it doesn’t guarantee outcomes, the kit is crafted to support accurate rebuilds and durable results under typical operating conditions.

Installation and maintenance notes

  • Follow standard safety practices and consult your engine manual during maintenance
  • Inspect related fuel system components for signs of wear to maximize benefits

FAQ

Q: Which engines are compatible with the JLM MARINE 42909A4 fuel pump kit?

A: Mercury Mariner 3-cylinder 70–90 HP and 4-cylinder 115 HP outboards; designed for reliable OEM-style fit.

Q: What’s included in the kit and how can it help maintenance?

A: Gaskets, seals, and diaphragms to refurbish the fuel pump, meeting OEM standards for smooth maintenance.

Shipping & Return
Shipping & Return
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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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