Heavy duty machine record
Sailrite Ultrafeed LSZ
Portable heavy-duty walking-foot sewing machine
Sailrite specifies 135x16 and 135x17 needle systems for the Ultrafeed LSZ, in sizes #10 to #22.
Verified compatibility
| Part or system | Relationship | Status | Evidence note |
|---|---|---|---|
| Needle System 135x16 | Officially compatible | CONFIRMED | Sailrite specifies 135x16 as a compatible needle system. |
| Needle System 135x17 | Officially compatible | CONFIRMED | Sailrite specifies 135x17 as a compatible needle system. |
| Sailrite Ultrafeed LSZ Inside Foot | Officially compatible | CONFIRMED | Sailrite lists the W012Z inside presser foot for the Ultrafeed LSZ. |
| Sailrite Ultrafeed LSZ Sawtooth Foot | Officially compatible | CONFIRMED | Sailrite lists the W013Z sawtooth outside presser foot for the Ultrafeed LSZ. |
| Sailrite Ultrafeed LSZ Knurled Foot | Officially compatible | CONFIRMED | Sailrite lists the 120184 knurled foot for the Ultrafeed LSZ. |
| Sailrite Ultrafeed LSZ Smooth Foot Set | Officially compatible | CONFIRMED | Sailrite lists the 123374 smooth foot set for the Ultrafeed LSZ. |
| Sailrite Ultrafeed LSZ Right Zipper Foot | Officially compatible | CONFIRMED | Sailrite lists the 909 right zipper foot for the Ultrafeed LSZ. |
| Sailrite Ultrafeed LSZ Cording Foot Set | Officially compatible | CONFIRMED | Sailrite lists the 104854 cording foot set for the Ultrafeed LSZ. |
| Sailrite A036 Presser Foot Screw | Officially compatible | CONFIRMED | Sailrite lists A036 for both inside and outside presser feet on the Ultrafeed LSZ. |
Machine specifications
- Needle systems
- 135x16 and 135x17
- Needle size range
- #10 to #22
- Straight stitch length
- Up to 6 mm
- Zigzag width
- 0 to 5 mm
- Maximum listed speed
- 550 stitches per minute
What this machine is used for
A portable walking-foot machine that performs straight and zigzag stitches for canvas, sail, upholstery and other thick assemblies.
- Canvas
- Sails
- Marine covers
- Upholstery
- Portable repair work
Sources and scope
Electrical details and included package contents apply to the current 110V North American package; the page identifies Version 4 internal improvements.
- Sailrite Ultrafeed LSZ Walking Foot Sewing Machine Package (110V) Sailrite · Official machine product and specification page · Tier 2
- Inside Foot for Ultrafeed LSZ Sewing Machine Sailrite · Official accessory compatibility page · Tier 1
- Sawtooth Foot for Sailrite Ultrafeed LSZ Sailrite · Official accessory compatibility page · Tier 1
- Knurled Foot for Sailrite Ultrafeed LSZ Sailrite · Official accessory compatibility page · Tier 1
- Smooth Foot Set for Sailrite Ultrafeed LSZ Sewing Machine Sailrite · Official accessory compatibility page · Tier 1
- Ultrafeed LSZ Upholstery and Decor Package Sailrite · Official accessory guide PDF · Tier 1
- Presser Foot Screw for Ultrafeed and Leatherwork Sailrite · Official replacement-parts page · Tier 1
Last checked: August 2026. See how SewFitGuide verifies compatibility.