Customer Service jlmmarineus@gmail.com
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Product Details:
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Part Numbers:
- OEM: Mercury 821354A1, 821354A2, 821354A04
- Sierra: 18-4531
- Aftermarket: GLM12045, HJ MHJB-821354A2, AM821354A2
- Equivalent to: 821354A1
Compatible Models:
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Mercury:
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Four-Stroke Engines:
- 25 HP Carbureted (Serial Number Range: 0G590000 - 0T408999, 9973100 - 0P153499, 0T409000 and Up, 0P153500 and Up)
- 30 HP Carbureted Standard (Serial Number Range: 0G760300 - 0T408999, 0P153500 - 0P153499, 0T409000 and Up, 0P153500 and Up)
- 30 HP EFI Standard (Serial Number Range: 0T409000 - 1B226999)
- 30 HP (2-Cylinder) (644cc) (Serial Number Range: 0G053314 - 0T598999)
- 30 HP Jet (Serial Number Range: 0G590000 and Up)
- 40 HP Carbureted (3-Cylinder) Standard (Serial Number Range: 0G760300 - 0T408999, 0P153500 - 0P153499, 0T409000 and Up, 0P153500 and Up)
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Four-Stroke Engines:
Product Features
- High Quality: Manufactured to OEM specifications using the exact same material as the originals.
- Production Standards: Produced in an ISO9002 certified factory.
Why Choose JLM MARINE?
- Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
- Fast Global Shipping: Free delivery worldwide in 5-15 days.
- Direct from Manufacturer: Enjoy competitive prices without compromising quality.
Don't compromise on quality or performance. Choose JLM MARINE for reliable, high-performance marine parts at unbeatable prices. Order now and experience the JLM difference!
Need help?
Click the live support at the lower right corner of the webpage or email us your engine details for the right parts.
We can ship to virtually any address in the world with free shipping available for most regions.
For our typical US and Canadian customers , our shipping timeframes are as follows:
- Amazon FBA: orders will be delivered within 1-5 business days after placing the order (during certain special periods such as major promotions, Christmas, etc., the delivery time of Amazon FBA may be affected).
- US warehouse shipment: orders will be delivered within 7 days after placing the order.
- China warehouse shipment: orders will be delivered about 12 days after placing the order.
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.
Founded in 2002, JLM Marine has established itself as a dedicated manufacturer of high-quality marine parts, based in China. Our commitment to excellence in manufacturing has earned us the trust of top marine brands globally.
As a direct supplier, we bypass intermediaries, which allows us to offer competitive prices without compromising on quality. This approach not only supports cost-efficiency but also ensures that our customers receive the best value directly from the source.
We are excited to expand our reach through retail channels, bringing our expertise and commitment to quality directly to boat owners and enthusiasts worldwide.
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