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Attwood SP-37904 2 Wedge Extension Post - 13 to 19
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Attwood SP-37904 2 Wedge Extension Post - 13 to 19
Sturdy, dependable, and height-adjustable mounting point for a boat seat
Attwood SP-37904 2" Wedge Extension Post - 13" to 19"
Item #: 11198035

Attwood SP-37904 2" Wedge Extension Post - 13" to 19"

85% of respondents would recommend this to a friend

Item #: 11198035

TMT 633

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Sturdy, dependable, and height-adjustable mounting point for a boat seat
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What Stands Out

Adjustable Height
The Attwood Wedge™ features adjustable height options ranging from 13 to 19 inches and 24 to 30 inches, ensuring a customized fit for various seating arrangements and user preferences.
Integral Seat Mount
Designed with an integral seat mount, these posts securely accommodate various boat seats, providing stability and convenience while enhancing overall seating functionality on the water.
Durable Construction
Constructed from robust materials, the Wedge™ extension posts ensure long-lasting durability and reliable performance in marine environments, making them a dependable choice for boating enthusiasts.

Product Details

Shop Attwood SP-37904 2 Wedge Extension Post - 13 to 19 online at a best price in Turkmenistan. B07DG3HX7J
Brand Nameattwood
Global Trade Identification Number00014599379058
Number of Items1
Unit Count1 Count
ManufacturerAttwood
UPC014599379058
Included ComponentsAdjustable pedestal post, Integral Type-B seat mount, wedge-style bushing system, Peripheral bearing system with crush ribs
Item Type Nameboat-seating-accessories
Model NumberSP-37904
Manufacturer Part NumberSP-37904
Seat Depth2.38 inches (6 cm)
Seat Height19 inches (48.3 cm)
Auto Part OrientationPassengers Side
Compatible with Vehicle TypeBoat
Fit TypeVehicle Specific Fit
Automotive Fit TypeVehicle Specific Fit
ColorSilver
Material TypeAluminum
Brandattwood
OrientationPassengers Side
MaterialAluminum
Vehicle Service TypeBoat
Item Weight2 lbs (910 grams)

Who Should Buy?

Suitable For
  • Boat Owners

    Ideal for boat owners needing adjustable height posts for comfortable seating at various heights while on the water.

  • Fishing Enthusiasts

    Great for anglers looking for stability and height adjustment while fishing from a powered boat.

  • Recreational Users

    Perfect for casual users who enjoy spending time on boats and require customizable seating options for comfort.

Not Suitable For
  • Heavyweight Load

    Users needing to support heavy weight loads might find these posts insufficient and less stable over time.

Product Description

Attwood SP-37904 2" Wedge Extension Post - 13" to 19"

Have any Query? Chat with us

Customer Questions & Answers

  • Question: Does this come with seat mount?

    Answer: Yes
  • Question: Does this fit a 2 3/8 inch base?

    Answer: No, it will not
  • Question: If you buy the used can it be returned?

    Answer: Not sure, as I never tried to return it
  • Question: Will this fit a 1988 alumicraft?

    Answer: Appears to be universal, but not sure of the specific fit
  • Question: Is the 2 3/4 measurement the diameter of the pole or the black cap at the bottom. Thank you

    Answer: 2-3/8 is the pole measurement
  • Question: Will this fit a tracker vpro16?

    Answer: If it has a swivel eze wedge floor base it will
  • Question: How do you install the post in the base

    Answer: You should have the base in your boat, just put it in the base. If you don’t have a base, you have to put one in or try another type of seat
  • Question: How do I fix the handle that makes it go up and down

    Answer: The handle in the picture pushes a plunger stem that drives the piston to lift or allow the weight of a seated body to lower the piston

attwood Seating Accessories SP-37904 Editorial Review

The Attwood SP-37914 2" Wedge Extension Post is a well-made, high-quality product. It is easy to adjust to any size person and is compatible with a taper lock base. However, customers have reported some compatibility issues with their boats, particularly with the diameter and locking mechanism of their bases. One customer reported that the plastic safety/lock broke after the first use, and another reported that the post wore out after just 15 uses and fell off the seat. The warranty process for the product has also been reported as time-Consuming.

Customer Reviews & Ratings

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Pros

  • Well-made and high quality
  • Easy to adjust to any size person

Cons

  • Reports of the plastic safety/lock breaking and the post wearing out quickly

Platform Trust & Buyer Confidence

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4.2/5 9477 reviews
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Jasmin
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“Great products and very good service: very easy and very fast international delivery.”

9 September 2026 · via Trustpilot
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10 September 2026 · via Trustpilot
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“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”

11 September 2026 · via Trustpilot
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Adele
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“Easy to find and order what you want on the website. Delivery is quick to the UK”

8 September 2026 · via Trustpilot
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Important information

  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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TMT 633

Order now and get it around Sunday, September 20

QTY:

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Fastest cross-border delivery

Features & Benefits

  • Satin anodized aluminum 2-3/8-inch-diameter Extension Post
  • Conveniently height is adjustable between 24 and 30 inches
  • Wedge bushing locks the post into the base with a tight, solid fit
  • Bushing is securely mounted to the post with 2-point stainless steel riveting
  • Integral seat mount and meets ABYC Code B standards
  • Over 100 years of experience in engineering and manufacturing marine products

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