625-4289 ***WARNING**** Do not fall victim to the failure of the OEM blue plastic drain plugs. The factory cheap plugs crack, break off and create service to nightmares to actual water leaks into your boat. Hardin Marine has designed the "Lifetime Series" drain plugs to perfectly blend with their award winning lifetime series sea pumps. Whether your replacing your sea pump or merely servicing your boat you cannot afford to not update to the simple to install safer drain plugs. these replacements for Mercruiser #22-806608A02 / 8M2000874 from Hardin Marine are polished Stainless Steel and will last a lifetime!
The thread on this plug is 1/2-13
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620-32943 Open Sealing Tube for LS Exhaust Manifolds.
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620-32947 Closed Sealing Tube for LS Exhaust Manifolds. Used in Closed Cooling applications.
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620-38126 1-1/2” Aluminum Pencil Anode Kit w/ Plug
- Plug: 3/4"
- Anode: 3/4"
- Anode Length: 1-1/2"
- Anode Thread: 1/2-13
- GLM 12693
For V8 Big Block
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700-12694 1-1/2” Aluminum Pencil Anode Kit w/o Plug
- Anode: 3/4"
- Anode Length: 1-1/2"
- Anode Thread: 1/2-13
For Seaward Manifolds, BBC, SBC and other applications.
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This Part has options, please click the button below to order.
620-38125 This add-on anti-corrosion kit fits Hardin Marine Seaward Series Exhaust Systems or any other aluminum manifold with a 3/4" NPT port.
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620-38127 Add an inlet with a drain provison with this fitting. Fits 3/4" NPT port. 1" Hose barb. See related parts for drain plug sold separately. GLM 13991, Mercruiser 22-862210A01.
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620-38130 Tee fitting. 3/4" NPT port. 1" Hose barbs. Typically used in SBC Dry Joint Seaward Exhaust applications.
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This Part has options, please click the button below to order.
620-380 + Option(s) Riser Jump Hose
Replacement Riser Jump Hose for Seaward Risers
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This Part has options, please click the button below to order.
620-38 + Option(s)
- Standard Manifold is powder-coated for corrosion protection
- Optional "Ocean Series" Extreme Corrosion Treatment available for additional interior corrosion protection
- 356T Aluminum Heat treated tubular style cast internal manifold core for header like performance
- Silent choice, captains call, and select sound exhaust diverter system compatible
- Sold in pairs
- No tailpipes included, replacement manifolds only!
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This Part has options, please click the button below to order.
620-38 + Option(s)
- Standard Manifold is powder-coated for corrosion protection
- Optional "Ocean Series" Extreme Corrosion Treatment available for additional interior corrosion protection
- 356T Aluminum Heat treated tubular style cast internal manifold core for header like performance
- Silent choice, captains call, and select sound exhaust diverter system compatible
- Sold in pairs
- No tailpipes included, replacement manifolds only!
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620-38087
- Manifold is powder-coated for corrosion protection
- "Ocean Series" Extreme Corrosion Treatment included for additional interior corrosion protection
- 356T Aluminum Heat treated tubular style cast internal manifold core for header like performance
- Silent choice, captains call, and select sound exhaust diverter system compatible
- Sold in pairs
- No tailpipes included, replacement manifolds only!
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620-38033 Seaward Standard Risers - Sold As A Pair
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620-38083 Seaward 3" Taller Risers - Sold As A Pair
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620-38107 Seaward 6" Taller Risers - Polished - Sold In Pairs
Polished Stainless steel tailpipe is manufactured from premium 316L Stainless steel, 4" OD
These tailpipes feature a 4" O.D and a 3-1/2" I.D. for maximum exhaust flow.
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620-38058 Seaward XL BBC Bravo Tailpipes - Sold As A Pair
These stainless steel tailpipes are manufactured from premium 316l Stainless steel not 304/303 low grade SS many competitors use. These tailpipes feature a 4" O.D and a 3-1/2" I.D. for maximum exhaust flow.
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620-38098 Seaward Custom 8.2L Risers - Sold As A Pair, 11-3/8" tall
Limited stock available, custom height risers. If you are in the market for a Seaward 8.2L system talk to a salesman to see if these fit your application, as it may have considerable cost reductions over building new risers.
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620-38059 Seaward HP500 Standard BBC - Polished - Sold as a pair
Polished Stainless steel tailpipe is manufactured from premium 316L Stainless steel, 4" OD
These tailpipes feature a 4" O.D and a 3-1/2" I.D. for maximum exhaust flow. These systems are perfect for engines rated up to 525HP.
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620-38034 Seaward Standard Risers - Sold As A Pair
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620-38042 525 Seaward Tall Risers - Polished
Tailpipe not included
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