491012-1 — Fixed, 1 piece
A one-piece, 48-inch hook for straightforward reach without a telescoping adjustment.
Sea-Dog Boat Hooks: Fixed vs Telescoping Length & Replacement Parts Guide
Choose a Sea-Dog boat hook by how far it needs to reach and how much room you have to store it. The 491-series includes two fixed poles and four telescoping models. Compare closed and extended lengths, section counts and the manufacturer's replacement-hook groups before selecting a part.
Fixed and telescoping Sea-Dog boat hooks
Fixed lengths for simple storage
491012-1 is 48 inches and 491013-1 is 72 inches. Neither telescopes, so check whether its full length fits your storage location.
Compact two-piece model
491021-1 adjusts from 24 to 36 inches. It has a listed closed-pole diameter of 1-1/8 inches.
Longer adjustable reach
491024-1 and 491034-1 both extend to 96 inches, but the former uses two sections and closes to 48 inches; the latter uses three and closes to 36 inches.
Maximum reach
491036-1 extends to 144 inches (12 feet) and closes to 56 inches. Choose by the actual task and stowage room.
Sea-Dog boat hook closed and extended lengths
Sea-Dog lists the figures below for the six specific MPNs. 'Closed pole diameter' is the manufacturer's specification, not a universal clamp or storage-clip compatibility rating.
| MPN | Style | Stored length | Extended length | Closed pole diameter | Replacement hook MPN |
|---|---|---|---|---|---|
| 491012-1 | Fixed, 1 piece | 48 in | 48 in | 1-1/8 in | 491052-1 (large) |
| 491013-1 | Fixed, 1 piece | 72 in | 72 in | 1-1/8 in | 491052-1 (large) |
| 491021-1 | Telescoping, 2 pieces | 24 in | 36 in | 1-1/8 in | 491051-1 (small) |
| 491024-1 | Telescoping, 2 pieces | 48 in | 96 in | 1-1/8 in | 491051-1 (small) |
| 491034-1 | Telescoping, 3 pieces | 36 in | 96 in | 1-1/4 in | 491051-1 (small) |
| 491036-1 | Telescoping, 3 pieces | 56 in | 144 in | 1-1/4 in | 491051-1 (small) |
Which hook replacement and accessories fit?
Replacement hooks: Sea-Dog specifies 491052-1 (large) for fixed models 491012-1 and 491013-1. The 491051-1 (small) is specified for telescoping models 491021-1, 491024-1, 491034-1 and 491036-1. Do not substitute one replacement family for the other.
The orange end cap is separately identified by Sea-Dog as 491050-1. The poles feature a removable orange tip and a universal/Acme threaded accessory connection. The optional 491110-1 cover-support crown works with Sea-Dog boat hooks; webbing straps are not included with the crown.
Measure before ordering
- Measure your storage space first: compare the closed lengths for adjustable models or the full lengths for fixed poles.
- Choose enough extended reach for your task without assuming the longest pole is always the most practical.
- Match replacement hooks by the manufacturer's two groups. The small 491051-1 and large 491052-1 replacements do not serve the same pole models.
- If using the 491110-1 mooring-cover crown, plan for a suitable method of securing the cover. The manufacturer's matching webbing straps are a separate part.
Find your Sea-Dog boat hook
Browse the matching boat-hook listings and optional cover crown. Product-card links go to the items stocked in this store, not to other retailers.
491013-1 — Fixed, 1 piece
The longer, fixed 72-inch member of the Sea-Dog boat-hook family.
491021-1 — Telescoping, 2 pieces
The most compact two-section option: 24 inches stored, extending to 36 inches.
491024-1 — Telescoping, 2 pieces
Two sections expand from four to eight feet for extra reach during docking.
491034-1 — Telescoping, 3 pieces
Three telescoping sections pack to 36 inches while reaching 96 inches extended.
491036-1 — Telescoping, 3 pieces
The longest member of this group, extending to 144 inches from a 56-inch closed length.
491110-1 — Mooring-cover support crown
Replaces the hook tip with a support crown for boat covers and canvas tops; securing webbing straps are separate.
Other marine hardware guides
Sea-Dog brass and stainless boat snaps • Sea-Dog boat drain plug size guide
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