APS - Dwyer Dinghy Mast & Boom Parts

Dwyer/Damco Spar Information

Dwyer spars have and do supply many builders with spars and parts. We stock all of their most popular replacement parts. Note that DM-20 and DM-3 sections are used as mast only and DM-1 and DM-2 as both masts and booms. We have provided the information above to help you identify your Dwyer mast type.

DM-20 Mast Ends Fittings

From Dwyer, the mast head and mast step are designed to work with the DM-20 Mast. The masthead is made up of two sheaves, two aluminum pins and the mast casting. It uses two pop rivets.

DH120 DM-20 Masthead w/Sheaves Price: $27.72 DH2120 DM-20 Mast Heel Plug/Step Price: $14.44

DM-1 Mast Ends Fittings

Designed to be compatible with the DM-1 Mast, the end fittings are a mast head with nylon sheaves, or two options for mast steps. The Mast steps are available with or without a Tenon. Two pop rivets are needed for the mast head and the mast step with Tenon.

DH101	DM-1 Masthead Casting	Price: $27.72		DH211	DM-1 Step w/Tenon	Price: $13.91
DH212	DM-1 Mast Heel Plug/Step	Price: $13.49

DM-2 Mast End Fittings

Designed to be compatible with the DM-2 Mast, the end fittings are a mast head with nylon sheaves, or three options for mast steps. The Mast steps are available with or without a Tenon or with a hinged step. Two pop rivets are needed for the mast head, mast step with Tenon and the hinged step.

DH102	DM-2 Masthead w/Sheaves	Price: $28.35		DH213	DM-2 Step w/Tenon	Price: $15.65
DH214	DM-2 Mast Heel Plug/Step	Price: $14.18		DH214H	DM-2 Hinged Step w/Heel Plug	Price: $68.46

DM-3 Mast End Fittings

Designed to be compatible with the DM-3 Mast, the end fittings are a mast head with nylon sheaves, or three options for mast steps. The Mast steps are available with or without a Tenon or with a hinged step. Two pop rivets are needed for the mast head, mast step with Tenon and the hinged step.

DH103	Masthead Casting DM-3	Price: $32.81		DH215	DM-3 Step w/Tenon	Price: $14.65
DH216	DM-3 Mast Heel Plug/Step	Price: $13.86		DH216H	DM-3 Hinged Mast Step	Price: $68.78

DM-2 & DM-3 Mast Hardware

Part Number	Description
DH713	Radiused Tang	Needs 3 SSP2 Pop Rivets
DH714	Radiused Tang	Needs 4 SSP2 Pop Rivets
DH70	Tang	Needs 4 SSP2 Pop Rivets
DH601	Mast Eye	Needs 4 SSP2 Pop Rivets
DH312	Bail	Needs 4 SSP2 Pop Rivets
DH856A	Hound Assembly	Needs BN1 Bolt with Nut and 2 SSP2 Pop Rivets

DH312	Boom Bail - 4 Mounting Holes	Price: $5.78	DH601	Spin Pole Mast Ring	Price: $23.78
DH70	Tang - Fork with Four Hole Attach	Price: $13.76	DH713	Tang - Three Hole Attachment	Price: $5.78
DH714	Tang - Four Hole Attachment	Price: $6.20	DH856	Mast Hound - No Clevis Pin	Price: $18.27
DH856A	Mast Hound Assy - Complete	Price: $39.59

Dwyer Spreaders

Part Number	Description	Additional Information
DH2510	Spreader	Fits with the 256 Bracket, it has diameter of 1/2" and 24" in length
DH256	Spreader Bracket	1/4" Pin, Needs 2 SSP2 Pop Rivets
DH2520	Spreader	Fits with the 252 Bracket, it is 5/8" OD and 24" Length
DH252	Spreader Bracket	Needs 3 SSP2 Pop Rivets
DHDS1	Spreader, Standard Airfoil (Pair)	Fits with with 2521 Bracket, 1" in width and 20" long
DH2521	Spreader Bracket	Wrap Around Spreader Bracket, Uses 6 SSP2 Pop Rivets

DH2510	1/2 Round Spreader 24 (1)	Price: $15.75	DH252	Spreader Bracket One Side SS	Price: $15.70
DH2520	5/8 Round Spreader 24 w/Sq	Price: $19.95	DH2521	Dwyer Airfoil Spreader Bracket	Price: $38.75
DH256	Spreader Lug Cast Aluminum	Price: $11.66	DHDS1	Spreaders Std Airfoil (pr)	Price: $26.04

DM-1 Boom End Fittings

Part Number	Description
DH6530	Outhaul Cap	Needs 2 SSP4 Pop Rivets
DH353C	Gooseneck Casting	Needs 2 SSP4 Pop Rivets
DH653	Outhaul Cap with Tang	Needs 2 SSP4 Pop Rivets
DH3531S	Sliding Gooseneck	Needs 2 SSP4 Pop Rivets
DH3531L	Sliding Gooseneck	Needs 2 SSP4 Pop Rivets
DH353F	Fixed Gooseneck	Needs 2 SSP4 Pop Rivets and 6 SSP2 Rivets

DH3531L	DM-1 Boom End w/Gooseneck-DM2+	Price: $64.00	DH3531S	DM-1 Boom End w/Gooseneck-DM1	Price: $64.00
DH353C	DM-1 Boom Gooseneck End	Price: $20.58	DH353F	DM-1 Boom End w/Gooseneck - Fixed	Price: $61.37
DH653	DM-1 Outhaul End w/Tang	Price: $19.22	DH6530	DM-1 Outhaul Boom End	Price: $12.18

DM-2 Boom End Fittings

Part Number	Description
DH6540	Outhaul Cap	Needs 2 SSP4 Pop Rivets
DH354C	Gooseneck Casting	Needs 2 SSP4 Pop Rivets
DH654	Outhaul Cap with Tang	Needs 2 SSP4 Pop Rivets
DH3541L	Sliding Gooseneck	Needs 2 SSP4 Pop Rivets
DH354F	Fixed Gooseneck	Needs 2 SSP4 and 6 SSP2 Pop Rivets
DH354FL	Fixed Gooseneck	Needs 2 SSP4 and 6 SSP2 Pop Rivets

DH3541L	DM-2 Boom End w/Slide Gooseneck	Price: $64.58	DH354C	DM-2 Gooseneck Boom End	Price: $19.95
DH354F	DM-3 Boom End w/Fixed Gooseneck	Price: $64.58	DH654	DM-2 Outhaul Boom End w/Tang	Price: $19.32
DH6540	DM-2 Outhaul Boom End	Price: $12.44

Dwyer Goosenecks

Part Number	Description	Fits Mast Size/Groove Size	Additional Information
DH410	Fixed Gooseneck	DM-500	6 fixing holes on mast mounting plate
DH414	Fixed Gooseneck, Roller Reefing, Removable Spring-Loaded Pin	2" to 2-1/2", Round	4 fixing holes on mast mounting plate
DH415	Fixed Gooseneck, Roller Reefing, Removable Spring-Loaded Pin	DM-3, DM-4, DM-5	6 fixing holes on mast mounting plate
DH415L	Fixed Gooseneck, Roller Reefing	DM-375
DH418	Roller Reefing Gooseneck Slide, Removable Spring-Loaded Pin	3/8" Deep Groove
DH4151	Roller Reefing Gooseneck Slide	1/2" Deep Groove

DH410	Fixed Gooseneck	Price: $72.45	DH414	Fixed Gooseneck	Price: $38.85
DH415	Gooseneck Fixed DM 3, 4 & 5	Price: $38.85	DH4151	Sliding Gooseneck -1/2 groove	Price: $42.00
DH418	Gooseneck Sliding 3/8 Groove	Price: $42.00