SEI MARINE PRODUCTS - Compatible with Alpha I Gen II Stbd (Right) Trim Cylinder OE#: 815954A7
- This Trim Cylinder replaces OE# 815954A7 1991 and newer
- Fits the Starboard or right side of the drive.
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When purchasing a product, price is the consumer's primary concern. At present, SEI Marine Products has 159 products for sale. SEI Marine Products products range in price from $5.16 to $1139, and the average price of all the products is about $174.19.
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Last Updated: Jan 10, 2026
SEI Marine Products- Compatible with Mercruiser Alpha I Gen II Bellows Kit
- The SE116 Bellows Kit seals the drive to the transom.
- Replaces OE#: 30-803099T1
- Clamps are tridon stainless and hoses are heavy duty
SEI MARINE PRODUCTS-Compatible with Mercury Mariner Bearing Carrier 12596T2 50-150 HP 2 Stroke 4 Stroke Fits Bigfoot Models on the 50-70HP models. 4-1/4 Bullet Diameter
- This bearing carrier replaces OE#: 12596T2 and fits 2 stroke inline 3 & 4 cylinder 50-125 HP and 4 stroke 50-150 HP Mercury, Mariner, and Force outboard lower units from 1987-current. It only fits Bigfoot models of the 50-70 HP Engines. 4-1/4 Bullet Diameter
SEI MARINE PRODUCTS - Compatible with Mercruiser Alpha I Gen II Port (Left) Trim Cylinder
- This Trim Cylinder replaces OE# 815935A7
- Fits the Port or Left Side of the Drive
SEI MARINE PRODUCTS- Gear Lube Kit
SEI MARINE PRODUCTS - Compatible with Mercruiser Bravo Port Trim Cylinder
- Our 9B-121 Trim Cylinders are replacements for all Bravo I,II, and III Trim Cylinders.
- This is the replacement for the port side trim cylinder.
- Replaces OE#: 98703A26
SEI Marine Products-Compatible with Mercruiser Alpha I Gen II Trim Cylinder Hardware Kit
- This kit includes all of the hardware that is needed to install the 9B-116 trim cylinders.
SEI Marine Products-Compatible with Power Trim and Tilt Unit Mercury Outboard Replaces Mercury 2.5L -3.0L 2 Wire
SEI Marine Products-Compatible with Kerr's Marine tool Heavy Duty Work Stand
SEI Marine Products-Compatible with Evinrude Johnson Gearcase Seal Kit 0396350 8 9.9 10 15 HP 2 Stroke 4 Stroke
- This gearcase seal kit replaces OE#:0396350 and fits 9.9, 10 & 15 HP 2 Stroke (1974 - 2007), and 8,10 & 15 HP 4 Stroke (1995 - 2004) Evinrude Johnson outboard lower units.
SEI MARINE PRODUCTS- Compatible with Mercury Mariner 2.5L Water Pump Kit With Housing 46-96148A 8 135 150 175 200 HP 2-stroke
- This water pump kit replaces OE#: 46-96148A 8, 46-42579A4 , 46-96148A5 and fits 2.0, 2.4, and 2.5L 2-stroke(135, 150, 175, 200 HP) Mercury, Mariner, and Force outboard lower units from 1979-current. This kit includes the upper housing.
SEI Marine Products-Compatible with - Mercury Mariner Gearcase Seal Kit 26-89238A2 135 150 175 200 HP V6 1979-Current
- This gearcase seal kit replaces OE#: 26-89238A2 and fits 2.0, 2.4 and 2.5 liter ( 135, 150, 175, 200 HP) V6 Mercury and Mariner outboard lower units from 1979-current.
- Will fit models with preload pin and without preload pin on driveshaft.
- Will fit both the 4-3/4 cases as well as the 4-1/4 cases.
SEI Marine Products-Compatible with - Mercury Mariner Force Gearcase Seal Kit 26-41365A3 6 8 9.9 15 HP 2 & 4 Stroke
- This gearcase seal kit replaces OE#: 26-41365A3 and fits Mercury, Mariner, and Force outboard lower units for the following applications: 6-15 hp 2 stroke 1986-2005 and 8-15 hp 4 stroke.
SEI Marine Products Front Mount Cylinder Seal Kit Compatible with OE# HS5167
- Front Mount Cylinder Seal Kit
- **Please read description and compatible part numbers** Below
- OE# HS5167
SEI Marine Product Compatible with Mercruiser Alpha One Gen II Guide Tube Sleeve
SEI MARINE PRODUCTS-Compatible with Mercruiser Alpha One Generation I Water Pocket Cover Kit 42724A3 1972-1990
- This water pocket cover kit replaces OE#: 42724A3 and fits Mercruiser Alpha One Generation I sterndrives from 1972-1990.
SEI MARINE PRODUCTS-Compatible with Yamaha Water Pump Kit 61A-W0078-83 150 175 200 225 250 300 HP 2 Stroke 4 Stroke
- This water pump kit replaces OE#: 61A-W0078-83 and 61A-44311-00 and fits standard rotation and counter rotation 2.6 liter / 2 stroke ( 150, 175, 200, 225 HP), 3.1/ 3.2 liter / 2 stroke (200 HP and up) and 4 stroke (150 HP and up) Yamaha outboard lower units from 1991-current. Does NOT fit lower units with low-water pick-ups.
SEI Marine Products-Compatible with Yamaha Gearcase Seal Kit 6E5-W0001-F1-00 115 HP 130 HP 2 Stroke 4 Stroke
- This gearcase seal kit replaces OE#: 6E5-W0001-F1-00 and fits Yamaha V4 (115 and 130 HP) outboard lower units. It fits 2 stroke models from 1984-current and 4 stroke models from 2000-current.
SEI MARINE PRODUCTS - Hose Kit (Compatible with Mercruiser Alpha I 15-9/16 and Bravo)
SEI Marine Products-Compatible with OMC Stringer Upper Seal Kit 0981799 0982949 Sterndrive Upper Gearcase
- This upper seal kit replaces OE #:0981799 and 0982949 and fits OMC Stringer sterndrive upper gearcases.
